ARM: tegra: clocks for nvavp

[linux-2.6.git] / arch / arm / mach-tegra / tegra3_clocks.c

/*
 * arch/arm/mach-tegra/tegra3_clocks.c
 *
 * Copyright (C) 2010-2011 NVIDIA Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/syscore_ops.h>

#include <asm/clkdev.h>

#include <mach/iomap.h>
#include <mach/edp.h>

#include "clock.h"
#include "fuse.h"
#include "dvfs.h"
#include "pm.h"
#include "sleep.h"
#include "tegra3_emc.h"

#define RST_DEVICES_L                   0x004
#define RST_DEVICES_H                   0x008
#define RST_DEVICES_U                   0x00C
#define RST_DEVICES_V                   0x358
#define RST_DEVICES_W                   0x35C
#define RST_DEVICES_SET_L               0x300
#define RST_DEVICES_CLR_L               0x304
#define RST_DEVICES_SET_V               0x430
#define RST_DEVICES_CLR_V               0x434
#define RST_DEVICES_NUM                 5

#define CLK_OUT_ENB_L                   0x010
#define CLK_OUT_ENB_H                   0x014
#define CLK_OUT_ENB_U                   0x018
#define CLK_OUT_ENB_V                   0x360
#define CLK_OUT_ENB_W                   0x364
#define CLK_OUT_ENB_SET_L               0x320
#define CLK_OUT_ENB_CLR_L               0x324
#define CLK_OUT_ENB_SET_V               0x440
#define CLK_OUT_ENB_CLR_V               0x444
#define CLK_OUT_ENB_NUM                 5

#define RST_DEVICES_V_SWR_CPULP_RST_DIS (0x1 << 1)
#define CLK_OUT_ENB_V_CLK_ENB_CPULP_EN  (0x1 << 1)

#define PERIPH_CLK_TO_BIT(c)            (1 << (c->u.periph.clk_num % 32))
#define PERIPH_CLK_TO_RST_REG(c)        \
        periph_clk_to_reg((c), RST_DEVICES_L, RST_DEVICES_V, 4)
#define PERIPH_CLK_TO_RST_SET_REG(c)    \
        periph_clk_to_reg((c), RST_DEVICES_SET_L, RST_DEVICES_SET_V, 8)
#define PERIPH_CLK_TO_RST_CLR_REG(c)    \
        periph_clk_to_reg((c), RST_DEVICES_CLR_L, RST_DEVICES_CLR_V, 8)

#define PERIPH_CLK_TO_ENB_REG(c)        \
        periph_clk_to_reg((c), CLK_OUT_ENB_L, CLK_OUT_ENB_V, 4)
#define PERIPH_CLK_TO_ENB_SET_REG(c)    \
        periph_clk_to_reg((c), CLK_OUT_ENB_SET_L, CLK_OUT_ENB_SET_V, 8)
#define PERIPH_CLK_TO_ENB_CLR_REG(c)    \
        periph_clk_to_reg((c), CLK_OUT_ENB_CLR_L, CLK_OUT_ENB_CLR_V, 8)

#define CLK_MASK_ARM                    0x44
#define MISC_CLK_ENB                    0x48

#define OSC_CTRL                        0x50
#define OSC_CTRL_OSC_FREQ_MASK          (0xF<<28)
#define OSC_CTRL_OSC_FREQ_13MHZ         (0x0<<28)
#define OSC_CTRL_OSC_FREQ_19_2MHZ       (0x4<<28)
#define OSC_CTRL_OSC_FREQ_12MHZ         (0x8<<28)
#define OSC_CTRL_OSC_FREQ_26MHZ         (0xC<<28)
#define OSC_CTRL_OSC_FREQ_16_8MHZ       (0x1<<28)
#define OSC_CTRL_OSC_FREQ_38_4MHZ       (0x5<<28)
#define OSC_CTRL_OSC_FREQ_48MHZ         (0x9<<28)
#define OSC_CTRL_MASK                   (0x3f2 | OSC_CTRL_OSC_FREQ_MASK)

#define OSC_CTRL_PLL_REF_DIV_MASK       (3<<26)
#define OSC_CTRL_PLL_REF_DIV_1          (0<<26)
#define OSC_CTRL_PLL_REF_DIV_2          (1<<26)
#define OSC_CTRL_PLL_REF_DIV_4          (2<<26)

#define OSC_FREQ_DET                    0x58
#define OSC_FREQ_DET_TRIG               (1<<31)

#define OSC_FREQ_DET_STATUS             0x5C
#define OSC_FREQ_DET_BUSY               (1<<31)
#define OSC_FREQ_DET_CNT_MASK           0xFFFF

#define PERIPH_CLK_SOURCE_I2S1          0x100
#define PERIPH_CLK_SOURCE_EMC           0x19c
#define PERIPH_CLK_SOURCE_OSC           0x1fc
#define PERIPH_CLK_SOURCE_NUM1 \
        ((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4)

#define PERIPH_CLK_SOURCE_G3D2          0x3b0
#define PERIPH_CLK_SOURCE_SE            0x42c
#define PERIPH_CLK_SOURCE_NUM2 \
        ((PERIPH_CLK_SOURCE_SE - PERIPH_CLK_SOURCE_G3D2) / 4 + 1)

#define AUDIO_DLY_CLK                   0x49c
#define AUDIO_SYNC_CLK_SPDIF            0x4b4
#define PERIPH_CLK_SOURCE_NUM3 \
        ((AUDIO_SYNC_CLK_SPDIF - AUDIO_DLY_CLK) / 4 + 1)

#define PERIPH_CLK_SOURCE_NUM           (PERIPH_CLK_SOURCE_NUM1 + \
                                         PERIPH_CLK_SOURCE_NUM2 + \
                                         PERIPH_CLK_SOURCE_NUM3)

#define CPU_SOFTRST_CTRL                0x380

#define PERIPH_CLK_SOURCE_DIVU71_MASK   0xFF
#define PERIPH_CLK_SOURCE_DIVU16_MASK   0xFFFF
#define PERIPH_CLK_SOURCE_DIV_SHIFT     0
#define PERIPH_CLK_UART_DIV_ENB         (1<<24)
#define PERIPH_CLK_VI_SEL_EX_SHIFT      24
#define PERIPH_CLK_VI_SEL_EX_MASK       (0x3<<PERIPH_CLK_VI_SEL_EX_SHIFT)
#define PERIPH_CLK_NAND_DIV_EX_ENB      (1<<8)
#define PERIPH_CLK_DTV_POLARITY_INV     (1<<25)

#define AUDIO_SYNC_SOURCE_MASK          0x0F
#define AUDIO_SYNC_DISABLE_BIT          0x10
#define AUDIO_SYNC_TAP_NIBBLE_SHIFT(c)  ((c->reg_shift - 24) * 4)

#define PLL_BASE                        0x0
#define PLL_BASE_BYPASS                 (1<<31)
#define PLL_BASE_ENABLE                 (1<<30)
#define PLL_BASE_REF_ENABLE             (1<<29)
#define PLL_BASE_OVERRIDE               (1<<28)
#define PLL_BASE_LOCK                   (1<<27)
#define PLL_BASE_DIVP_MASK              (0x7<<20)
#define PLL_BASE_DIVP_SHIFT             20
#define PLL_BASE_DIVN_MASK              (0x3FF<<8)
#define PLL_BASE_DIVN_SHIFT             8
#define PLL_BASE_DIVM_MASK              (0x1F)
#define PLL_BASE_DIVM_SHIFT             0

#define PLL_OUT_RATIO_MASK              (0xFF<<8)
#define PLL_OUT_RATIO_SHIFT             8
#define PLL_OUT_OVERRIDE                (1<<2)
#define PLL_OUT_CLKEN                   (1<<1)
#define PLL_OUT_RESET_DISABLE           (1<<0)

#define PLL_MISC(c)                     \
        (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc)
#define PLL_MISC_LOCK_ENABLE(c) \
        (((c)->flags & (PLLU | PLLD)) ? (1<<22) : (1<<18))

#define PLL_MISC_DCCON_SHIFT            20
#define PLL_MISC_CPCON_SHIFT            8
#define PLL_MISC_CPCON_MASK             (0xF<<PLL_MISC_CPCON_SHIFT)
#define PLL_MISC_LFCON_SHIFT            4
#define PLL_MISC_LFCON_MASK             (0xF<<PLL_MISC_LFCON_SHIFT)
#define PLL_MISC_VCOCON_SHIFT           0
#define PLL_MISC_VCOCON_MASK            (0xF<<PLL_MISC_VCOCON_SHIFT)
#define PLLD_MISC_CLKENABLE             (1<<30)

#define PLLU_BASE_POST_DIV              (1<<20)

#define PLLD_BASE_DSIB_MUX_SHIFT        25
#define PLLD_BASE_DSIB_MUX_MASK         (1<<PLLD_BASE_DSIB_MUX_SHIFT)
#define PLLD_BASE_CSI_CLKENABLE         (1<<26)
#define PLLD_MISC_DSI_CLKENABLE         (1<<30)
#define PLLD_MISC_DIV_RST               (1<<23)
#define PLLD_MISC_DCCON_SHIFT           12

#define PLLDU_LFCON_SET_DIVN            600

/* FIXME: OUT_OF_TABLE_CPCON per pll */
#define OUT_OF_TABLE_CPCON              0x8

#define SUPER_CLK_MUX                   0x00
#define SUPER_STATE_SHIFT               28
#define SUPER_STATE_MASK                (0xF << SUPER_STATE_SHIFT)
#define SUPER_STATE_STANDBY             (0x0 << SUPER_STATE_SHIFT)
#define SUPER_STATE_IDLE                (0x1 << SUPER_STATE_SHIFT)
#define SUPER_STATE_RUN                 (0x2 << SUPER_STATE_SHIFT)
#define SUPER_STATE_IRQ                 (0x3 << SUPER_STATE_SHIFT)
#define SUPER_STATE_FIQ                 (0x4 << SUPER_STATE_SHIFT)
#define SUPER_LP_DIV2_BYPASS            (0x1 << 16)
#define SUPER_SOURCE_MASK               0xF
#define SUPER_FIQ_SOURCE_SHIFT          12
#define SUPER_IRQ_SOURCE_SHIFT          8
#define SUPER_RUN_SOURCE_SHIFT          4
#define SUPER_IDLE_SOURCE_SHIFT         0

#define SUPER_CLK_DIVIDER               0x04
#define SUPER_CLOCK_DIV_U71_SHIFT       16
#define SUPER_CLOCK_DIV_U71_MASK        (0xff << SUPER_CLOCK_DIV_U71_SHIFT)
/* guarantees safe cpu backup */
#define SUPER_CLOCK_DIV_U71_MIN         0x2

#define BUS_CLK_DISABLE                 (1<<3)
#define BUS_CLK_DIV_MASK                0x3

#define PMC_CTRL                        0x0
 #define PMC_CTRL_BLINK_ENB             (1 << 7)

#define PMC_DPD_PADS_ORIDE              0x1c
 #define PMC_DPD_PADS_ORIDE_BLINK_ENB   (1 << 20)

#define PMC_BLINK_TIMER_DATA_ON_SHIFT   0
#define PMC_BLINK_TIMER_DATA_ON_MASK    0x7fff
#define PMC_BLINK_TIMER_ENB             (1 << 15)
#define PMC_BLINK_TIMER_DATA_OFF_SHIFT  16
#define PMC_BLINK_TIMER_DATA_OFF_MASK   0xffff

#define UTMIP_PLL_CFG2                                  0x488
#define UTMIP_PLL_CFG2_STABLE_COUNT(x)                  (((x) & 0xfff) << 6)
#define UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(x)              (((x) & 0x3f) << 18)
#define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN        (1 << 0)
#define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN        (1 << 2)
#define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN        (1 << 4)

#define UTMIP_PLL_CFG1                                  0x484
#define UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(x)              (((x) & 0x1f) << 27)
#define UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(x)               (((x) & 0xfff) << 0)
#define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN       (1 << 14)
#define UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN       (1 << 12)
#define UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN             (1 << 16)

#define PLLE_BASE_CML_ENABLE            (1<<31)
#define PLLE_BASE_ENABLE                (1<<30)
#define PLLE_BASE_DIVCML_SHIFT          24
#define PLLE_BASE_DIVCML_MASK           (0xf<<PLLE_BASE_DIVCML_SHIFT)
#define PLLE_BASE_DIVP_SHIFT            16
#define PLLE_BASE_DIVP_MASK             (0x3f<<PLLE_BASE_DIVP_SHIFT)
#define PLLE_BASE_DIVN_SHIFT            8
#define PLLE_BASE_DIVN_MASK             (0xFF<<PLLE_BASE_DIVN_SHIFT)
#define PLLE_BASE_DIVM_SHIFT            0
#define PLLE_BASE_DIVM_MASK             (0xFF<<PLLE_BASE_DIVM_SHIFT)
#define PLLE_BASE_DIV_MASK              \
        (PLLE_BASE_DIVCML_MASK | PLLE_BASE_DIVP_MASK | \
         PLLE_BASE_DIVN_MASK | PLLE_BASE_DIVM_MASK)
#define PLLE_BASE_DIV(m, n, p, cml)             \
         (((cml)<<PLLE_BASE_DIVCML_SHIFT) | ((p)<<PLLE_BASE_DIVP_SHIFT) | \
          ((n)<<PLLE_BASE_DIVN_SHIFT) | ((m)<<PLLE_BASE_DIVM_SHIFT))

#define PLLE_MISC_SETUP_BASE_SHIFT      16
#define PLLE_MISC_SETUP_BASE_MASK       (0xFFFF<<PLLE_MISC_SETUP_BASE_SHIFT)
#define PLLE_MISC_READY                 (1<<15)
#define PLLE_MISC_LOCK                  (1<<11)
#define PLLE_MISC_LOCK_ENABLE           (1<<9)
#define PLLE_MISC_SETUP_EX_SHIFT        2
#define PLLE_MISC_SETUP_EX_MASK         (0x3<<PLLE_MISC_SETUP_EX_SHIFT)
#define PLLE_MISC_SETUP_MASK            \
          (PLLE_MISC_SETUP_BASE_MASK | PLLE_MISC_SETUP_EX_MASK)
#define PLLE_MISC_SETUP_VALUE           \
          ((0x7<<PLLE_MISC_SETUP_BASE_SHIFT) | (0x0<<PLLE_MISC_SETUP_EX_SHIFT))

#define PLLE_SS_CTRL                    0x68
#define PLLE_SS_INCINTRV_SHIFT          24
#define PLLE_SS_INCINTRV_MASK           (0x3f<<PLLE_SS_INCINTRV_SHIFT)
#define PLLE_SS_INC_SHIFT               16
#define PLLE_SS_INC_MASK                (0xff<<PLLE_SS_INC_SHIFT)
#define PLLE_SS_MAX_SHIFT               0
#define PLLE_SS_MAX_MASK                (0x1ff<<PLLE_SS_MAX_SHIFT)
#define PLLE_SS_COEFFICIENTS_MASK       \
        (PLLE_SS_INCINTRV_MASK | PLLE_SS_INC_MASK | PLLE_SS_MAX_MASK)
#define PLLE_SS_COEFFICIENTS_12MHZ      \
        ((0x18<<PLLE_SS_INCINTRV_SHIFT) | (0x1<<PLLE_SS_INC_SHIFT) | \
         (0x24<<PLLE_SS_MAX_SHIFT))
#define PLLE_SS_DISABLE                 ((1<<12) | (1<<11) | (1<<10))

#define PLLE_AUX                        0x48c
#define PLLE_AUX_PLLP_SEL               (1<<2)
#define PLLE_AUX_CML_SATA_ENABLE        (1<<1)
#define PLLE_AUX_CML_PCIE_ENABLE        (1<<0)

#define PMC_SATA_PWRGT                  0x1ac
#define PMC_SATA_PWRGT_PLLE_IDDQ_VALUE  (1<<5)
#define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL  (1<<4)

#define ROUND_DIVIDER_UP        0
#define ROUND_DIVIDER_DOWN      1

/* FIXME: recommended safety delay after lock is detected */
#define PLL_POST_LOCK_DELAY             100

static int tegra3_clk_shared_bus_update(struct clk *bus);

static struct clk *emc_bridge;

static bool detach_shared_bus;
module_param(detach_shared_bus, bool, 0644);

/**
* Structure defining the fields for USB UTMI clocks Parameters.
*/
struct utmi_clk_param
{
        /* Oscillator Frequency in KHz */
        u32 osc_frequency;
        /* UTMIP PLL Enable Delay Count  */
        u8 enable_delay_count;
        /* UTMIP PLL Stable count */
        u8 stable_count;
        /*  UTMIP PLL Active delay count */
        u8 active_delay_count;
        /* UTMIP PLL Xtal frequency count */
        u8 xtal_freq_count;
};

static const struct utmi_clk_param utmi_parameters[] =
{
/*      OSC_FREQUENCY,  ENABLE_DLY,     STABLE_CNT,     ACTIVE_DLY,     XTAL_FREQ_CNT */
        {13000000,      0x02,           0x33,           0x05,           0x7F},
        {19200000,      0x03,           0x4B,           0x06,           0xBB},
        {12000000,      0x02,           0x2F,           0x04,           0x76},
        {26000000,      0x04,           0x66,           0x09,           0xFE},
        {16800000,      0x03,           0x41,           0x0A,           0xA4},
};

static void __iomem *reg_clk_base = IO_ADDRESS(TEGRA_CLK_RESET_BASE);
static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE);
static void __iomem *misc_gp_hidrev_base = IO_ADDRESS(TEGRA_APB_MISC_BASE);

#define MISC_GP_HIDREV                  0x804

/*
 * Some peripheral clocks share an enable bit, so refcount the enable bits
 * in registers CLK_ENABLE_L, ... CLK_ENABLE_W
 */
static int tegra_periph_clk_enable_refcount[CLK_OUT_ENB_NUM * 32];

#define clk_writel(value, reg) \
        __raw_writel(value, (u32)reg_clk_base + (reg))
#define clk_readl(reg) \
        __raw_readl((u32)reg_clk_base + (reg))
#define pmc_writel(value, reg) \
        __raw_writel(value, (u32)reg_pmc_base + (reg))
#define pmc_readl(reg) \
        __raw_readl((u32)reg_pmc_base + (reg))
#define chipid_readl() \
        __raw_readl((u32)misc_gp_hidrev_base + MISC_GP_HIDREV)

#define clk_writel_delay(value, reg)                                    \
        do {                                                            \
                __raw_writel((value), (u32)reg_clk_base + (reg));       \
                udelay(2);                                              \
        } while (0)


static inline int clk_set_div(struct clk *c, u32 n)
{
        return clk_set_rate(c, (clk_get_rate(c->parent) + n-1) / n);
}

static inline u32 periph_clk_to_reg(
        struct clk *c, u32 reg_L, u32 reg_V, int offs)
{
        u32 reg = c->u.periph.clk_num / 32;
        BUG_ON(reg >= RST_DEVICES_NUM);
        if (reg < 3) {
                reg = reg_L + (reg * offs);
        } else {
                reg = reg_V + ((reg - 3) * offs);
        }
        return reg;
}

unsigned long clk_measure_input_freq(void)
{
        u32 clock_autodetect;
        clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET);
        do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY);
        clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS);
        if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) {
                return 12000000;
        } else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) {
                return 13000000;
        } else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) {
                return 19200000;
        } else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) {
                return 26000000;
        } else if (clock_autodetect >= 1025 - 3 && clock_autodetect <= 1025 + 3) {
                return 16800000;
        } else if (clock_autodetect >= 2344 - 3 && clock_autodetect <= 2344 + 3) {
                return 38400000;
        } else if (clock_autodetect >= 2928 - 3 && clock_autodetect <= 2928 + 3) {
                return 48000000;
        } else {
                pr_err("%s: Unexpected clock autodetect value %d", __func__, clock_autodetect);
                BUG();
                return 0;
        }
}

static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate,
                                 u32 flags, u32 round_mode)
{
        s64 divider_u71 = parent_rate;
        if (!rate)
                return -EINVAL;

        if (!(flags & DIV_U71_INT))
                divider_u71 *= 2;
        if (round_mode == ROUND_DIVIDER_UP)
                divider_u71 += rate - 1;
        do_div(divider_u71, rate);
        if (flags & DIV_U71_INT)
                divider_u71 *= 2;

        if (divider_u71 - 2 < 0)
                return 0;

        if (divider_u71 - 2 > 255)
                return -EINVAL;

        return divider_u71 - 2;
}

static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate)
{
        s64 divider_u16;

        divider_u16 = parent_rate;
        if (!rate)
                return -EINVAL;
        divider_u16 += rate - 1;
        do_div(divider_u16, rate);

        if (divider_u16 - 1 < 0)
                return 0;

        if (divider_u16 - 1 > 0xFFFF)
                return -EINVAL;

        return divider_u16 - 1;
}

/* clk_m functions */
static unsigned long tegra3_clk_m_autodetect_rate(struct clk *c)
{
        u32 osc_ctrl = clk_readl(OSC_CTRL);
        u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK;
        u32 pll_ref_div = osc_ctrl & OSC_CTRL_PLL_REF_DIV_MASK;

        c->rate = clk_measure_input_freq();
        switch (c->rate) {
        case 12000000:
                auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ;
                BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
                break;
        case 13000000:
                auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ;
                BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
                break;
        case 19200000:
                auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ;
                BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
                break;
        case 26000000:
                auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ;
                BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
                break;
        case 16800000:
                auto_clock_control |= OSC_CTRL_OSC_FREQ_16_8MHZ;
                BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1);
                break;
        case 38400000:
                auto_clock_control |= OSC_CTRL_OSC_FREQ_38_4MHZ;
                BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_2);
                break;
        case 48000000:
                auto_clock_control |= OSC_CTRL_OSC_FREQ_48MHZ;
                BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_4);
                break;
        default:
                pr_err("%s: Unexpected clock rate %ld", __func__, c->rate);
                BUG();
        }
        clk_writel(auto_clock_control, OSC_CTRL);
        return c->rate;
}

static void tegra3_clk_m_init(struct clk *c)
{
        pr_debug("%s on clock %s\n", __func__, c->name);
        tegra3_clk_m_autodetect_rate(c);
}

static int tegra3_clk_m_enable(struct clk *c)
{
        pr_debug("%s on clock %s\n", __func__, c->name);
        return 0;
}

static void tegra3_clk_m_disable(struct clk *c)
{
        pr_debug("%s on clock %s\n", __func__, c->name);
        WARN(1, "Attempting to disable main SoC clock\n");
}

static struct clk_ops tegra_clk_m_ops = {
        .init           = tegra3_clk_m_init,
        .enable         = tegra3_clk_m_enable,
        .disable        = tegra3_clk_m_disable,
};

static struct clk_ops tegra_clk_m_div_ops = {
        .enable         = tegra3_clk_m_enable,
};

/* PLL reference divider functions */
static void tegra3_pll_ref_init(struct clk *c)
{
        u32 pll_ref_div = clk_readl(OSC_CTRL) & OSC_CTRL_PLL_REF_DIV_MASK;
        pr_debug("%s on clock %s\n", __func__, c->name);

        switch (pll_ref_div) {
        case OSC_CTRL_PLL_REF_DIV_1:
                c->div = 1;
                break;
        case OSC_CTRL_PLL_REF_DIV_2:
                c->div = 2;
                break;
        case OSC_CTRL_PLL_REF_DIV_4:
                c->div = 4;
                break;
        default:
                pr_err("%s: Invalid pll ref divider %d", __func__, pll_ref_div);
                BUG();
        }
        c->mul = 1;
        c->state = ON;
}

static struct clk_ops tegra_pll_ref_ops = {
        .init           = tegra3_pll_ref_init,
        .enable         = tegra3_clk_m_enable,
        .disable        = tegra3_clk_m_disable,
};

/* super clock functions */
/* "super clocks" on tegra3 have two-stage muxes, fractional 7.1 divider and
 * clock skipping super divider.  We will ignore the clock skipping divider,
 * since we can't lower the voltage when using the clock skip, but we can if
 * we lower the PLL frequency. We will use 7.1 divider for CPU super-clock
 * only when its parent is a fixed rate PLL, since we can't change PLL rate
 * in this case.
 */
static void tegra3_super_clk_init(struct clk *c)
{
        u32 val;
        int source;
        int shift;
        const struct clk_mux_sel *sel;
        val = clk_readl(c->reg + SUPER_CLK_MUX);
        c->state = ON;
        BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
                ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
        shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ?
                SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT;
        source = (val >> shift) & SUPER_SOURCE_MASK;
        if (c->flags & DIV_2)
                source |= val & SUPER_LP_DIV2_BYPASS;
        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (sel->value == source)
                        break;
        }
        BUG_ON(sel->input == NULL);
        c->parent = sel->input;

        if (c->flags & DIV_U71) {
                /* Init safe 7.1 divider value (does not affect PLLX path) */
                clk_writel(SUPER_CLOCK_DIV_U71_MIN << SUPER_CLOCK_DIV_U71_SHIFT,
                           c->reg + SUPER_CLK_DIVIDER);
                c->mul = 2;
                c->div = 2;
                if (!(c->parent->flags & PLLX))
                        c->div += SUPER_CLOCK_DIV_U71_MIN;
        }
        else
                clk_writel(0, c->reg + SUPER_CLK_DIVIDER);
}

static int tegra3_super_clk_enable(struct clk *c)
{
        return 0;
}

static void tegra3_super_clk_disable(struct clk *c)
{
        /* since tegra 3 has 2 CPU super clocks - low power lp-mode clock and
           geared up g-mode super clock - mode switch may request to disable
           either of them; accept request with no affect on h/w */
}

static int tegra3_super_clk_set_parent(struct clk *c, struct clk *p)
{
        u32 val;
        const struct clk_mux_sel *sel;
        int shift;

        val = clk_readl(c->reg + SUPER_CLK_MUX);;
        BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) &&
                ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE));
        shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ?
                SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT;
        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (sel->input == p) {
                        /* For LP mode super-clock switch between PLLX direct
                           and divided-by-2 outputs is allowed only when other
                           than PLLX clock source is current parent */
                        if ((c->flags & DIV_2) && (p->flags & PLLX) &&
                            ((sel->value ^ val) & SUPER_LP_DIV2_BYPASS)) {
                                if (c->parent->flags & PLLX)
                                        return -EINVAL;
                                val ^= SUPER_LP_DIV2_BYPASS;
                                clk_writel_delay(val, c->reg);
                        }
                        val &= ~(SUPER_SOURCE_MASK << shift);
                        val |= (sel->value & SUPER_SOURCE_MASK) << shift;

                        /* 7.1 divider for CPU super-clock does not affect
                           PLLX path */
                        if (c->flags & DIV_U71) {
                                u32 div = 0;
                                if (!(p->flags & PLLX)) {
                                        div = clk_readl(c->reg +
                                                        SUPER_CLK_DIVIDER);
                                        div &= SUPER_CLOCK_DIV_U71_MASK;
                                        div >>= SUPER_CLOCK_DIV_U71_SHIFT;
                                }
                                c->div = div + 2;
                                c->mul = 2;
                        }

                        if (c->refcnt)
                                clk_enable(p);

                        clk_writel_delay(val, c->reg);

                        if (c->refcnt && c->parent)
                                clk_disable(c->parent);

                        clk_reparent(c, p);
                        return 0;
                }
        }
        return -EINVAL;
}

/*
 * Do not use super clocks "skippers", since dividing using a clock skipper
 * does not allow the voltage to be scaled down. Instead adjust the rate of
 * the parent clock. This requires that the parent of a super clock have no
 * other children, otherwise the rate will change underneath the other
 * children. Special case: if fixed rate PLL is CPU super clock parent the
 * rate of this PLL can't be changed, and it has many other children. In
 * this case use 7.1 fractional divider to adjust the super clock rate.
 */
static int tegra3_super_clk_set_rate(struct clk *c, unsigned long rate)
{
        if ((c->flags & DIV_U71) && (c->parent->flags & PLL_FIXED)) {
                int div = clk_div71_get_divider(c->parent->u.pll.fixed_rate,
                                        rate, c->flags, ROUND_DIVIDER_DOWN);
                div = max(div, SUPER_CLOCK_DIV_U71_MIN);

                clk_writel(div << SUPER_CLOCK_DIV_U71_SHIFT,
                           c->reg + SUPER_CLK_DIVIDER);
                c->div = div + 2;
                c->mul = 2;
                return 0;
        }
        return clk_set_rate(c->parent, rate);
}

static struct clk_ops tegra_super_ops = {
        .init                   = tegra3_super_clk_init,
        .enable                 = tegra3_super_clk_enable,
        .disable                = tegra3_super_clk_disable,
        .set_parent             = tegra3_super_clk_set_parent,
        .set_rate               = tegra3_super_clk_set_rate,
};

static int tegra3_twd_clk_set_rate(struct clk *c, unsigned long rate)
{
        /* The input value 'rate' is the clock rate of the CPU complex. */
        c->rate = (rate * c->mul) / c->div;
        return 0;
}

static struct clk_ops tegra3_twd_ops = {
        .set_rate       = tegra3_twd_clk_set_rate,
};

static struct clk tegra3_clk_twd = {
        /* NOTE: The twd clock must have *NO* parent. It's rate is directly
                 updated by tegra3_cpu_cmplx_clk_set_rate() because the
                 frequency change notifer for the twd is called in an
                 atomic context which cannot take a mutex. */
        .name     = "twd",
        .ops      = &tegra3_twd_ops,
        .max_rate = 1400000000, /* Same as tegra_clk_cpu_cmplx.max_rate */
        .mul      = 1,
        .div      = 2,
};

/* virtual cpu clock functions */
/* some clocks can not be stopped (cpu, memory bus) while the SoC is running.
   To change the frequency of these clocks, the parent pll may need to be
   reprogrammed, so the clock must be moved off the pll, the pll reprogrammed,
   and then the clock moved back to the pll.  To hide this sequence, a virtual
   clock handles it.
 */
static void tegra3_cpu_clk_init(struct clk *c)
{
        c->state = (!is_lp_cluster() == (c->u.cpu.mode == MODE_G))? ON : OFF;
}

static int tegra3_cpu_clk_enable(struct clk *c)
{
        return 0;
}

static void tegra3_cpu_clk_disable(struct clk *c)
{
        /* since tegra 3 has 2 virtual CPU clocks - low power lp-mode clock
           and geared up g-mode clock - mode switch may request to disable
           either of them; accept request with no affect on h/w */
}

static int tegra3_cpu_clk_set_rate(struct clk *c, unsigned long rate)
{
        int ret = 0;

        /* Hardware clock control is not possible on FPGA platforms.
           Report success so that upper level layers don't complain
           needlessly. */
#ifndef CONFIG_TEGRA_FPGA_PLATFORM
        if (c->dvfs) {
                if (!c->dvfs->dvfs_rail)
                        return -ENOSYS;
                else if ((!c->dvfs->dvfs_rail->reg) &&
                          (clk_get_rate_locked(c) < rate)) {
                        WARN(1, "Increasing CPU rate while regulator is not"
                                " ready may overclock CPU\n");
                        return -ENOSYS;
                }
        }

        /*
         * Take an extra reference to the main pll so it doesn't turn
         * off when we move the cpu off of it
         */
        clk_enable(c->u.cpu.main);

        ret = clk_set_parent(c->parent, c->u.cpu.backup);
        if (ret) {
                pr_err("Failed to switch cpu to clock %s\n", c->u.cpu.backup->name);
                goto out;
        }

        ret = clk_set_rate(c->parent, rate);
        if (!ret && (rate <= clk_get_rate(c->parent)))
                goto out;

        if (rate != clk_get_rate(c->u.cpu.main)) {
                ret = clk_set_rate(c->u.cpu.main, rate);
                if (ret) {
                        pr_err("Failed to change cpu pll to %lu\n", rate);
                        goto out;
                }
        }

        ret = clk_set_parent(c->parent, c->u.cpu.main);
        if (ret) {
                pr_err("Failed to switch cpu to clock %s\n", c->u.cpu.main->name);
                goto out;
        }

out:
        clk_disable(c->u.cpu.main);
#endif
        return ret;
}

static struct clk_ops tegra_cpu_ops = {
        .init     = tegra3_cpu_clk_init,
        .enable   = tegra3_cpu_clk_enable,
        .disable  = tegra3_cpu_clk_disable,
        .set_rate = tegra3_cpu_clk_set_rate,
};


static void tegra3_cpu_cmplx_clk_init(struct clk *c)
{
        int i = !!is_lp_cluster();

        BUG_ON(c->inputs[0].input->u.cpu.mode != MODE_G);
        BUG_ON(c->inputs[1].input->u.cpu.mode != MODE_LP);
        c->parent = c->inputs[i].input;
}

/* cpu complex clock provides second level vitualization (on top of
   cpu virtual cpu rate control) in order to hide the CPU mode switch
   sequence */
#if PARAMETERIZE_CLUSTER_SWITCH
static unsigned int switch_delay;
static unsigned int switch_flags;
static DEFINE_SPINLOCK(parameters_lock);

void tegra_cluster_switch_set_parameters(unsigned int us, unsigned int flags)
{
        spin_lock(&parameters_lock);
        switch_delay = us;
        switch_flags = flags;
        spin_unlock(&parameters_lock);
}
#endif

static int tegra3_cpu_cmplx_clk_enable(struct clk *c)
{
        return 0;
}

static void tegra3_cpu_cmplx_clk_disable(struct clk *c)
{
        pr_debug("%s on clock %s\n", __func__, c->name);

        /* oops - don't disable the CPU complex clock! */
        BUG();
}

static int tegra3_cpu_cmplx_clk_set_rate(struct clk *c, unsigned long rate)
{
        unsigned long flags;
        int ret;
        struct clk *parent = c->parent;

        if (!parent->ops || !parent->ops->set_rate)
                return -ENOSYS;

        clk_lock_save(parent, &flags);

        ret = clk_set_rate_locked(parent, rate);

        /* We can't parent the twd to directly to the CPU complex because
           the TWD frequency update notifier is called in an atomic context
           and the CPU frequency update requires a mutex. Update the twd
           clock rate with the new CPU complex rate. */
        clk_set_rate(&tegra3_clk_twd, clk_get_rate_locked(parent));

        clk_unlock_restore(parent, &flags);

        return ret;
}

static int tegra3_cpu_cmplx_clk_set_parent(struct clk *c, struct clk *p)
{
        int ret;
        unsigned int flags, delay;
        const struct clk_mux_sel *sel;
        unsigned long rate = clk_get_rate(c->parent);

        pr_debug("%s: %s %s\n", __func__, c->name, p->name);
        BUG_ON(c->parent->u.cpu.mode != (is_lp_cluster() ? MODE_LP : MODE_G));

        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (sel->input == p)
                        break;
        }
        if (!sel->input)
                return -EINVAL;

#if PARAMETERIZE_CLUSTER_SWITCH
        spin_lock(&parameters_lock);
        flags = switch_flags;
        delay = switch_delay;
        switch_flags = 0;
        spin_unlock(&parameters_lock);

        if (flags) {
                /* over-clocking after the switch - allow, but lower rate */
                if (rate > p->max_rate) {
                        rate = p->max_rate;
                        ret = clk_set_rate(c->parent, rate);
                        if (ret) {
                                pr_err("%s: Failed to set rate %lu for %s\n",
                                        __func__, rate, p->name);
                                return ret;
                        }
                }
        } else
#endif
        {
                if (p == c->parent)             /* already switched - exit*/
                        return 0;

                if (rate > p->max_rate) {       /* over-clocking - no switch */
                        pr_warn("%s: No %s mode switch to %s at rate %lu\n",
                                 __func__, c->name, p->name, rate);
                        return -ECANCELED;
                }
                flags = TEGRA_POWER_CLUSTER_IMMEDIATE;
                delay = 0;
        }
        flags |= (p->u.cpu.mode == MODE_LP) ? TEGRA_POWER_CLUSTER_LP :
                TEGRA_POWER_CLUSTER_G;

        /* Since in both LP and G mode CPU main and backup sources are the
           same, set rate on the new parent just synchronizes super-clock
           muxes before mode switch with no PLL re-locking */
        ret = clk_set_rate(p, rate);
        if (ret) {
                pr_err("%s: Failed to set rate %lu for %s\n",
                       __func__, rate, p->name);
                return ret;
        }

        /* Enabling new parent scales new mode voltage rail in advanvce
           before the switch happens*/
        if (c->refcnt)
                clk_enable(p);

        /* switch CPU mode */
        ret = tegra_cluster_control(delay, flags);
        if (ret) {
                if (c->refcnt)
                        clk_disable(p);
                pr_err("%s: Failed to switch %s mode to %s\n",
                       __func__, c->name, p->name);
                return ret;
        }

        /* Disabling old parent scales old mode voltage rail */
        if (c->refcnt && c->parent)
                clk_disable(c->parent);

        clk_reparent(c, p);
        return 0;
}

static long tegra3_cpu_cmplx_round_rate(struct clk *c,
        unsigned long rate)
{
        if (rate > c->parent->max_rate)
                rate = c->parent->max_rate;
        else if (rate < c->parent->min_rate)
                rate = c->parent->min_rate;
        return rate;
}

static struct clk_ops tegra_cpu_cmplx_ops = {
        .init     = tegra3_cpu_cmplx_clk_init,
        .enable   = tegra3_cpu_cmplx_clk_enable,
        .disable  = tegra3_cpu_cmplx_clk_disable,
        .set_rate = tegra3_cpu_cmplx_clk_set_rate,
        .set_parent = tegra3_cpu_cmplx_clk_set_parent,
        .round_rate = tegra3_cpu_cmplx_round_rate,
};

/* virtual cop clock functions. Used to acquire the fake 'cop' clock to
 * reset the COP block (i.e. AVP) */
static void tegra3_cop_clk_reset(struct clk *c, bool assert)
{
        unsigned long reg = assert ? RST_DEVICES_SET_L : RST_DEVICES_CLR_L;

        pr_debug("%s %s\n", __func__, assert ? "assert" : "deassert");
        clk_writel(1 << 1, reg);
}

static struct clk_ops tegra_cop_ops = {
        .reset    = tegra3_cop_clk_reset,
};

/* bus clock functions */
static void tegra3_bus_clk_init(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON;
        c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1;
        c->mul = 1;
}

static int tegra3_bus_clk_enable(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        val &= ~(BUS_CLK_DISABLE << c->reg_shift);
        clk_writel(val, c->reg);
        return 0;
}

static void tegra3_bus_clk_disable(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        val |= BUS_CLK_DISABLE << c->reg_shift;
        clk_writel(val, c->reg);
}

static int tegra3_bus_clk_set_rate(struct clk *c, unsigned long rate)
{
        u32 val = clk_readl(c->reg);
        unsigned long parent_rate = clk_get_rate(c->parent);
        int i;
        for (i = 1; i <= 4; i++) {
                if (rate >= parent_rate / i) {
                        val &= ~(BUS_CLK_DIV_MASK << c->reg_shift);
                        val |= (i - 1) << c->reg_shift;
                        clk_writel(val, c->reg);
                        c->div = i;
                        c->mul = 1;
                        return 0;
                }
        }
        return -EINVAL;
}

static struct clk_ops tegra_bus_ops = {
        .init                   = tegra3_bus_clk_init,
        .enable                 = tegra3_bus_clk_enable,
        .disable                = tegra3_bus_clk_disable,
        .set_rate               = tegra3_bus_clk_set_rate,
};

/* Virtual system bus complex clock is used to hide the sequence of
   changing sclk/hclk/pclk parents and dividers to configure requested
   sclk target rate. */
static void tegra3_sbus_cmplx_init(struct clk *c)
{
        unsigned long rate;

        c->max_rate = c->parent->max_rate;
        c->min_rate = c->parent->min_rate;

        /* Threshold must be an exact proper factor of low range parent,
           and both low/high range parents have 7.1 fractional dividers */
        rate = clk_get_rate(c->u.system.sclk_low->parent);
        if (c->u.system.threshold) {
                BUG_ON(c->u.system.threshold > rate) ;
                BUG_ON((rate % c->u.system.threshold) != 0);
        }
        BUG_ON(!(c->u.system.sclk_low->flags & DIV_U71));
        BUG_ON(!(c->u.system.sclk_high->flags & DIV_U71));
}

/* This special sbus round function is implemented because:
 *
 * (a) fractional dividers can not be used to derive system bus clock with one
 * exception: 1 : 2.5 divider is allowed at 1.2V and above (and we do need this
 * divider to reach top sbus frequencies from high frequency source).
 *
 * (b) since sbus is a shared bus, and its frequency is set to the highest
 * enabled shared_bus_user clock, the target rate should be rounded up divider
 * ladder (if max limit allows it) - for pll_div and peripheral_div common is
 * rounding down - special case again.
 *
 * Note that final rate is trimmed (not rounded up) to avoid spiraling up in
 * recursive calls. Lost 1Hz is added in tegra3_sbus_cmplx_set_rate before
 * actually setting divider rate.
 */
static unsigned long sclk_high_2_5_rate;
static bool sclk_high_2_5_valid;

static long tegra3_sbus_cmplx_round_rate(struct clk *c, unsigned long rate)
{
        int i, divider;
        unsigned long source_rate, round_rate;
        struct clk *new_parent;

        rate = max(rate, c->min_rate);

        if (!sclk_high_2_5_rate) {
                source_rate = clk_get_rate(c->u.system.sclk_high->parent);
                sclk_high_2_5_rate = 2 * source_rate / 5;
                i = tegra_dvfs_predict_millivolts(c, sclk_high_2_5_rate);
                if (!IS_ERR_VALUE(i) && (i >= 1200) &&
                    (sclk_high_2_5_rate <= c->max_rate))
                        sclk_high_2_5_valid = true;
        }

        new_parent = (rate <= c->u.system.threshold) ?
                c->u.system.sclk_low : c->u.system.sclk_high;
        source_rate = clk_get_rate(new_parent->parent);

        divider = clk_div71_get_divider(source_rate, rate,
                new_parent->flags | DIV_U71_INT, ROUND_DIVIDER_DOWN);
        if (divider < 0)
                return divider;

        round_rate = source_rate * 2 / (divider + 2);
        if (round_rate > c->max_rate) {
                divider += 2;
                round_rate = source_rate * 2 / (divider + 2);
        }

        if (new_parent == c->u.system.sclk_high) {
                /* Check if 1 : 2.5 ratio provides better approximation */
                if (sclk_high_2_5_valid) {
                        if (((sclk_high_2_5_rate < round_rate) &&
                            (sclk_high_2_5_rate >= rate)) ||
                            ((round_rate < sclk_high_2_5_rate) &&
                             (round_rate < rate)))
                                round_rate = sclk_high_2_5_rate;
                }

                if (round_rate <= c->u.system.threshold)
                        round_rate = c->u.system.threshold;
        }
        return round_rate;
}

static int tegra3_sbus_cmplx_set_rate(struct clk *c, unsigned long rate)
{
        int ret;
        struct clk *new_parent;

        /* - select the appropriate sclk parent
           - keep hclk at the same rate as sclk
           - set pclk at 1:2 rate of hclk unless pclk minimum is violated,
             in the latter case switch to 1:1 ratio */

        if (rate >= c->u.system.pclk->min_rate * 2) {
                ret = clk_set_div(c->u.system.pclk, 2);
                if (ret) {
                        pr_err("Failed to set 1 : 2 pclk divider\n");
                        return ret;
                }
        }

        new_parent = (rate <= c->u.system.threshold) ?
                c->u.system.sclk_low : c->u.system.sclk_high;

        ret = clk_set_rate(new_parent, rate + 1);
        if (ret) {
                pr_err("Failed to set sclk source %s to %lu\n",
                       new_parent->name, rate);
                return ret;
        }

        if (new_parent != clk_get_parent(c->parent)) {
                ret = clk_set_parent(c->parent, new_parent);
                if (ret) {
                        pr_err("Failed to switch sclk source to %s\n",
                               new_parent->name);
                        return ret;
                }
        }

        if (rate < c->u.system.pclk->min_rate * 2) {
                ret = clk_set_div(c->u.system.pclk, 1);
                if (ret) {
                        pr_err("Failed to set 1 : 1 pclk divider\n");
                        return ret;
                }
        }

        return 0;
}

static struct clk_ops tegra_sbus_cmplx_ops = {
        .init = tegra3_sbus_cmplx_init,
        .set_rate = tegra3_sbus_cmplx_set_rate,
        .round_rate = tegra3_sbus_cmplx_round_rate,
        .shared_bus_update = tegra3_clk_shared_bus_update,
};

/* Blink output functions */

static void tegra3_blink_clk_init(struct clk *c)
{
        u32 val;

        val = pmc_readl(PMC_CTRL);
        c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF;
        c->mul = 1;
        val = pmc_readl(c->reg);

        if (val & PMC_BLINK_TIMER_ENB) {
                unsigned int on_off;

                on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) &
                        PMC_BLINK_TIMER_DATA_ON_MASK;
                val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT;
                val &= PMC_BLINK_TIMER_DATA_OFF_MASK;
                on_off += val;
                /* each tick in the blink timer is 4 32KHz clocks */
                c->div = on_off * 4;
        } else {
                c->div = 1;
        }
}

static int tegra3_blink_clk_enable(struct clk *c)
{
        u32 val;

        val = pmc_readl(PMC_DPD_PADS_ORIDE);
        pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE);

        val = pmc_readl(PMC_CTRL);
        pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL);

        return 0;
}

static void tegra3_blink_clk_disable(struct clk *c)
{
        u32 val;

        val = pmc_readl(PMC_CTRL);
        pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL);

        val = pmc_readl(PMC_DPD_PADS_ORIDE);
        pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE);
}

static int tegra3_blink_clk_set_rate(struct clk *c, unsigned long rate)
{
        unsigned long parent_rate = clk_get_rate(c->parent);
        if (rate >= parent_rate) {
                c->div = 1;
                pmc_writel(0, c->reg);
        } else {
                unsigned int on_off;
                u32 val;

                on_off = DIV_ROUND_UP(parent_rate / 8, rate);
                c->div = on_off * 8;

                val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) <<
                        PMC_BLINK_TIMER_DATA_ON_SHIFT;
                on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK;
                on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT;
                val |= on_off;
                val |= PMC_BLINK_TIMER_ENB;
                pmc_writel(val, c->reg);
        }

        return 0;
}

static struct clk_ops tegra_blink_clk_ops = {
        .init                   = &tegra3_blink_clk_init,
        .enable                 = &tegra3_blink_clk_enable,
        .disable                = &tegra3_blink_clk_disable,
        .set_rate               = &tegra3_blink_clk_set_rate,
};

/* PLL Functions */
static int tegra3_pll_clk_wait_for_lock(struct clk *c, u32 lock_reg, u32 lock_bit)
{
#if USE_PLL_LOCK_BITS
        int i;
        for (i = 0; i < c->u.pll.lock_delay; i++) {
                if (clk_readl(lock_reg) & lock_bit) {
                        udelay(PLL_POST_LOCK_DELAY);
                        return 0;
                }
                udelay(2);              /* timeout = 2 * lock time */
        }
        pr_err("Timed out waiting for lock bit on pll %s", c->name);
        return -1;
#endif
        udelay(c->u.pll.lock_delay);

        return 0;
}


static void tegra3_utmi_param_configure(struct clk *c)
{
        u32 reg;
        int i;
        unsigned long main_rate =
                clk_get_rate(c->parent->parent);

        for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) {
                if (main_rate == utmi_parameters[i].osc_frequency) {
                        break;
                }
        }

        if (i >= ARRAY_SIZE(utmi_parameters)) {
                pr_err("%s: Unexpected main rate %lu\n", __func__, main_rate);
                return;
        }

        reg = clk_readl(UTMIP_PLL_CFG2);

        /* Program UTMIP PLL stable and active counts */
        /* [FIXME] arclk_rst.h says WRONG! This should be 1ms -> 0x50 Check! */
        reg &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0);
        reg |= UTMIP_PLL_CFG2_STABLE_COUNT(
                        utmi_parameters[i].stable_count);

        reg &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0);

        reg |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(
                        utmi_parameters[i].active_delay_count);

        /* Remove power downs from UTMIP PLL control bits */
        reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN;
        reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN;
        reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN;

        clk_writel(reg, UTMIP_PLL_CFG2);

        /* Program UTMIP PLL delay and oscillator frequency counts */
        reg = clk_readl(UTMIP_PLL_CFG1);
        reg &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);

        reg |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(
                utmi_parameters[i].enable_delay_count);

        reg &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0);
        reg |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(
                utmi_parameters[i].xtal_freq_count);

        /* Remove power downs from UTMIP PLL control bits */
        reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
        reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN;
        reg &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN;

        clk_writel(reg, UTMIP_PLL_CFG1);
}

static void tegra3_pll_clk_init(struct clk *c)
{
        u32 val = clk_readl(c->reg + PLL_BASE);

        c->state = (val & PLL_BASE_ENABLE) ? ON : OFF;

        if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) {
                const struct clk_pll_freq_table *sel;
                unsigned long input_rate = clk_get_rate(c->parent);
                for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
                        if (sel->input_rate == input_rate &&
                                sel->output_rate == c->u.pll.fixed_rate) {
                                c->mul = sel->n;
                                c->div = sel->m * sel->p;
                                return;
                        }
                }
                pr_err("Clock %s has unknown fixed frequency\n", c->name);
                BUG();
        } else if (val & PLL_BASE_BYPASS) {
                c->mul = 1;
                c->div = 1;
        } else {
                c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT;
                c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT;
                if (c->flags & PLLU)
                        c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2;
                else
                        c->div *= (0x1 << ((val & PLL_BASE_DIVP_MASK) >>
                                        PLL_BASE_DIVP_SHIFT));
                if (c->flags & PLL_FIXED) {
                        unsigned long rate = clk_get_rate_locked(c);
                        BUG_ON(rate != c->u.pll.fixed_rate);
                }
        }

        if (c->flags & PLLU) {
                tegra3_utmi_param_configure(c);
        }
}

static int tegra3_pll_clk_enable(struct clk *c)
{
        u32 val;
        pr_debug("%s on clock %s\n", __func__, c->name);

#if USE_PLL_LOCK_BITS
        val = clk_readl(c->reg + PLL_MISC(c));
        val |= PLL_MISC_LOCK_ENABLE(c);
        clk_writel(val, c->reg + PLL_MISC(c));
#endif
        val = clk_readl(c->reg + PLL_BASE);
        val &= ~PLL_BASE_BYPASS;
        val |= PLL_BASE_ENABLE;
        clk_writel(val, c->reg + PLL_BASE);

        tegra3_pll_clk_wait_for_lock(c, c->reg + PLL_BASE, PLL_BASE_LOCK);

        return 0;
}

static void tegra3_pll_clk_disable(struct clk *c)
{
        u32 val;
        pr_debug("%s on clock %s\n", __func__, c->name);

        val = clk_readl(c->reg);
        val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE);
        clk_writel(val, c->reg);
}

static int tegra3_pll_clk_set_rate(struct clk *c, unsigned long rate)
{
        u32 val, p_div, old_base;
        unsigned long input_rate;
        const struct clk_pll_freq_table *sel;
        struct clk_pll_freq_table cfg;

        pr_debug("%s: %s %lu\n", __func__, c->name, rate);

        if (c->flags & PLL_FIXED) {
                int ret = 0;
                if (rate != c->u.pll.fixed_rate) {
                        pr_err("%s: Can not change %s fixed rate %lu to %lu\n",
                               __func__, c->name, c->u.pll.fixed_rate, rate);
                        ret = -EINVAL;
                }
                return ret;
        }

        p_div = 0;
        input_rate = clk_get_rate(c->parent);

        /* Check if the target rate is tabulated */
        for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
                if (sel->input_rate == input_rate && sel->output_rate == rate) {
                        if (c->flags & PLLU) {
                                BUG_ON(sel->p < 1 || sel->p > 2);
                                if (sel->p == 1)
                                        p_div = PLLU_BASE_POST_DIV;
                        } else {
                                BUG_ON(sel->p < 1);
                                for (val = sel->p; val > 1; val >>= 1, p_div++);
                                p_div <<= PLL_BASE_DIVP_SHIFT;
                        }
                        break;
                }
        }

        /* Configure out-of-table rate */
        if (sel->input_rate == 0) {
                unsigned long cfreq;
                BUG_ON(c->flags & PLLU);
                sel = &cfg;

                switch (input_rate) {
                case 12000000:
                case 26000000:
                        cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000;
                        break;
                case 13000000:
                        cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000;
                        break;
                case 16800000:
                case 19200000:
                        cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000;
                        break;
                default:
                        pr_err("%s: Unexpected reference rate %lu\n",
                               __func__, input_rate);
                        BUG();
                }

                /* Raise VCO to guarantee 0.5% accuracy */
                for (cfg.output_rate = rate; cfg.output_rate < 200 * cfreq;
                      cfg.output_rate <<= 1, p_div++);

                cfg.p = 0x1 << p_div;
                cfg.m = input_rate / cfreq;
                cfg.n = cfg.output_rate / cfreq;
                cfg.cpcon = OUT_OF_TABLE_CPCON;

                if ((cfg.m > (PLL_BASE_DIVM_MASK >> PLL_BASE_DIVM_SHIFT)) ||
                    (cfg.n > (PLL_BASE_DIVN_MASK >> PLL_BASE_DIVN_SHIFT)) ||
                    (p_div > (PLL_BASE_DIVP_MASK >> PLL_BASE_DIVP_SHIFT)) ||
                    (cfg.output_rate > c->u.pll.vco_max)) {
                        pr_err("%s: Failed to set %s out-of-table rate %lu\n",
                               __func__, c->name, rate);
                        return -EINVAL;
                }
                p_div <<= PLL_BASE_DIVP_SHIFT;
        }

        c->mul = sel->n;
        c->div = sel->m * sel->p;

        old_base = val = clk_readl(c->reg + PLL_BASE);
        val &= ~(PLL_BASE_DIVM_MASK | PLL_BASE_DIVN_MASK |
                 ((c->flags & PLLU) ? PLLU_BASE_POST_DIV : PLL_BASE_DIVP_MASK));
        val |= (sel->m << PLL_BASE_DIVM_SHIFT) |
                (sel->n << PLL_BASE_DIVN_SHIFT) | p_div;
        if (val == old_base)
                return 0;

        if (c->state == ON) {
                tegra3_pll_clk_disable(c);
                val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE);
        }
        clk_writel(val, c->reg + PLL_BASE);

        if (c->flags & PLL_HAS_CPCON) {
                val = clk_readl(c->reg + PLL_MISC(c));
                val &= ~PLL_MISC_CPCON_MASK;
                val |= sel->cpcon << PLL_MISC_CPCON_SHIFT;
                if (c->flags & (PLLU | PLLD)) {
                        val &= ~PLL_MISC_LFCON_MASK;
                        if (sel->n >= PLLDU_LFCON_SET_DIVN)
                                val |= 0x1 << PLL_MISC_LFCON_SHIFT;
                } else if (c->flags & (PLLX | PLLM)) {
                        val &= ~(0x1 << PLL_MISC_DCCON_SHIFT);
                        if (rate >= (c->u.pll.vco_max >> 1))
                                val |= 0x1 << PLL_MISC_DCCON_SHIFT;
                }
                clk_writel(val, c->reg + PLL_MISC(c));
        }

        if (c->state == ON)
                tegra3_pll_clk_enable(c);

        return 0;
}

static struct clk_ops tegra_pll_ops = {
        .init                   = tegra3_pll_clk_init,
        .enable                 = tegra3_pll_clk_enable,
        .disable                = tegra3_pll_clk_disable,
        .set_rate               = tegra3_pll_clk_set_rate,
};

static int
tegra3_plld_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting)
{
        u32 val, mask, reg;

        switch (p) {
        case TEGRA_CLK_PLLD_CSI_OUT_ENB:
                mask = PLLD_BASE_CSI_CLKENABLE;
                reg = c->reg + PLL_BASE;
                break;
        case TEGRA_CLK_PLLD_DSI_OUT_ENB:
                mask = PLLD_MISC_DSI_CLKENABLE;
                reg = c->reg + PLL_MISC(c);
                break;
        case TEGRA_CLK_PLLD_MIPI_MUX_SEL:
                if (!(c->flags & PLL_ALT_MISC_REG)) {
                        mask = PLLD_BASE_DSIB_MUX_MASK;
                        reg = c->reg + PLL_BASE;
                        break;
                }
        /* fall through - error since PLLD2 does not have MUX_SEL control */
        default:
                return -EINVAL;
        }

        val = clk_readl(reg);
        if (setting)
                val |= mask;
        else
                val &= ~mask;
        clk_writel(val, reg);
        return 0;
}

static struct clk_ops tegra_plld_ops = {
        .init                   = tegra3_pll_clk_init,
        .enable                 = tegra3_pll_clk_enable,
        .disable                = tegra3_pll_clk_disable,
        .set_rate               = tegra3_pll_clk_set_rate,
        .clk_cfg_ex             = tegra3_plld_clk_cfg_ex,
};

static void tegra3_plle_clk_init(struct clk *c)
{
        u32 val;

        val = clk_readl(PLLE_AUX);
        c->parent = (val & PLLE_AUX_PLLP_SEL) ?
                tegra_get_clock_by_name("pll_p") :
                tegra_get_clock_by_name("pll_ref");

        val = clk_readl(c->reg + PLL_BASE);
        c->state = (val & PLLE_BASE_ENABLE) ? ON : OFF;
        c->mul = (val & PLLE_BASE_DIVN_MASK) >> PLLE_BASE_DIVN_SHIFT;
        c->div = (val & PLLE_BASE_DIVM_MASK) >> PLLE_BASE_DIVM_SHIFT;
        c->div *= (val & PLLE_BASE_DIVP_MASK) >> PLLE_BASE_DIVP_SHIFT;
}

static void tegra3_plle_clk_disable(struct clk *c)
{
        u32 val;
        pr_debug("%s on clock %s\n", __func__, c->name);

        val = clk_readl(c->reg + PLL_BASE);
        val &= ~(PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE);
        clk_writel(val, c->reg + PLL_BASE);
}

static void tegra3_plle_training(struct clk *c)
{
        u32 val;

        /* PLLE is already disabled, and setup cleared;
         * create falling edge on PLLE IDDQ input */
        val = pmc_readl(PMC_SATA_PWRGT);
        val |= PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
        pmc_writel(val, PMC_SATA_PWRGT);

        val = pmc_readl(PMC_SATA_PWRGT);
        val |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL;
        pmc_writel(val, PMC_SATA_PWRGT);

        val = pmc_readl(PMC_SATA_PWRGT);
        val &= ~PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
        pmc_writel(val, PMC_SATA_PWRGT);

        do {
                val = clk_readl(c->reg + PLL_MISC(c));
        } while (!(val & PLLE_MISC_READY));
}

static int tegra3_plle_configure(struct clk *c, bool force_training)
{
        u32 val;
        const struct clk_pll_freq_table *sel;
        unsigned long rate = c->u.pll.fixed_rate;
        unsigned long input_rate = clk_get_rate(c->parent);

        for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) {
                if (sel->input_rate == input_rate && sel->output_rate == rate)
                        break;
        }

        if (sel->input_rate == 0)
                return -ENOSYS;

        /* disable PLLE, clear setup fiels */
        tegra3_plle_clk_disable(c);

        val = clk_readl(c->reg + PLL_MISC(c));
        val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK);
        clk_writel(val, c->reg + PLL_MISC(c));

        /* training */
        val = clk_readl(c->reg + PLL_MISC(c));
        if (force_training || (!(val & PLLE_MISC_READY)))
                tegra3_plle_training(c);

        /* configure dividers, setup, disable SS */
        val = clk_readl(c->reg + PLL_BASE);
        val &= ~PLLE_BASE_DIV_MASK;
        val |= PLLE_BASE_DIV(sel->m, sel->n, sel->p, sel->cpcon);
        clk_writel(val, c->reg + PLL_BASE);
        c->mul = sel->n;
        c->div = sel->m * sel->p;

        val = clk_readl(c->reg + PLL_MISC(c));
        val |= PLLE_MISC_SETUP_VALUE;
        val |= PLLE_MISC_LOCK_ENABLE;
        clk_writel(val, c->reg + PLL_MISC(c));

        val = clk_readl(PLLE_SS_CTRL);
        val |= PLLE_SS_DISABLE;
        clk_writel(val, PLLE_SS_CTRL);

        /* enable and lock PLLE*/
        val = clk_readl(c->reg + PLL_BASE);
        val |= (PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE);
        clk_writel(val, c->reg + PLL_BASE);

        tegra3_pll_clk_wait_for_lock(c, c->reg + PLL_MISC(c), PLLE_MISC_LOCK);

#if USE_PLLE_SS
        /* configure spread spectrum coefficients */
        /* FIXME: coefficients for 216MHZ input? */
#ifdef CONFIG_TEGRA_SILICON_PLATFORM
        if (input_rate == 12000000)
#endif
        {
                val = clk_readl(PLLE_SS_CTRL);
                val &= ~(PLLE_SS_COEFFICIENTS_MASK | PLLE_SS_DISABLE);
                val |= PLLE_SS_COEFFICIENTS_12MHZ;
                clk_writel(val, PLLE_SS_CTRL);
        }
#endif
        return 0;
}

static int tegra3_plle_clk_enable(struct clk *c)
{
        pr_debug("%s on clock %s\n", __func__, c->name);
        return tegra3_plle_configure(c, !c->set);
}

static struct clk_ops tegra_plle_ops = {
        .init                   = tegra3_plle_clk_init,
        .enable                 = tegra3_plle_clk_enable,
        .disable                = tegra3_plle_clk_disable,
};

/* Clock divider ops */
static void tegra3_pll_div_clk_init(struct clk *c)
{
        if (c->flags & DIV_U71) {
                u32 divu71;
                u32 val = clk_readl(c->reg);
                val >>= c->reg_shift;
                c->state = (val & PLL_OUT_CLKEN) ? ON : OFF;
                if (!(val & PLL_OUT_RESET_DISABLE))
                        c->state = OFF;

                divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT;
                c->div = (divu71 + 2);
                c->mul = 2;
        } else if (c->flags & DIV_2) {
                c->state = ON;
                if (c->flags & (PLLD | PLLX)) {
                        c->div = 2;
                        c->mul = 1;
                }
                else
                        BUG();
        } else {
                c->state = ON;
                c->div = 1;
                c->mul = 1;
        }
}

static int tegra3_pll_div_clk_enable(struct clk *c)
{
        u32 val;
        u32 new_val;

        pr_debug("%s: %s\n", __func__, c->name);
        if (c->flags & DIV_U71) {
                val = clk_readl(c->reg);
                new_val = val >> c->reg_shift;
                new_val &= 0xFFFF;

                new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE;

                val &= ~(0xFFFF << c->reg_shift);
                val |= new_val << c->reg_shift;
                clk_writel_delay(val, c->reg);
                return 0;
        } else if (c->flags & DIV_2) {
                return 0;
        }
        return -EINVAL;
}

static void tegra3_pll_div_clk_disable(struct clk *c)
{
        u32 val;
        u32 new_val;

        pr_debug("%s: %s\n", __func__, c->name);
        if (c->flags & DIV_U71) {
                val = clk_readl(c->reg);
                new_val = val >> c->reg_shift;
                new_val &= 0xFFFF;

                new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE);

                val &= ~(0xFFFF << c->reg_shift);
                val |= new_val << c->reg_shift;
                clk_writel_delay(val, c->reg);
        }
}

static int tegra3_pll_div_clk_set_rate(struct clk *c, unsigned long rate)
{
        u32 val;
        u32 new_val;
        int divider_u71;
        unsigned long parent_rate = clk_get_rate(c->parent);

        pr_debug("%s: %s %lu\n", __func__, c->name, rate);
        if (c->flags & DIV_U71) {
                divider_u71 = clk_div71_get_divider(
                        parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
                if (divider_u71 >= 0) {
                        val = clk_readl(c->reg);
                        new_val = val >> c->reg_shift;
                        new_val &= 0xFFFF;
                        if (c->flags & DIV_U71_FIXED)
                                new_val |= PLL_OUT_OVERRIDE;
                        new_val &= ~PLL_OUT_RATIO_MASK;
                        new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT;

                        val &= ~(0xFFFF << c->reg_shift);
                        val |= new_val << c->reg_shift;
                        clk_writel_delay(val, c->reg);
                        c->div = divider_u71 + 2;
                        c->mul = 2;
                        return 0;
                }
        } else if (c->flags & DIV_2)
                return clk_set_rate(c->parent, rate * 2);

        return -EINVAL;
}

static long tegra3_pll_div_clk_round_rate(struct clk *c, unsigned long rate)
{
        int divider;
        unsigned long parent_rate = clk_get_rate(c->parent);
        pr_debug("%s: %s %lu\n", __func__, c->name, rate);

        if (c->flags & DIV_U71) {
                divider = clk_div71_get_divider(
                        parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
                if (divider < 0)
                        return divider;
                return DIV_ROUND_UP(parent_rate * 2, divider + 2);
        } else if (c->flags & DIV_2)
                /* no rounding - fixed DIV_2 dividers pass rate to parent PLL */
                return rate;

        return -EINVAL;
}

static struct clk_ops tegra_pll_div_ops = {
        .init                   = tegra3_pll_div_clk_init,
        .enable                 = tegra3_pll_div_clk_enable,
        .disable                = tegra3_pll_div_clk_disable,
        .set_rate               = tegra3_pll_div_clk_set_rate,
        .round_rate             = tegra3_pll_div_clk_round_rate,
};

/* Periph clk ops */
static inline u32 periph_clk_source_mask(struct clk *c)
{
        if (c->flags & MUX8)
                 return 7 << 29;
        else if (c->flags & MUX_PWM)
                return 3 << 28;
        else if (c->flags & MUX_CLK_OUT)
                return 3 << (c->u.periph.clk_num + 4);
        else if (c->flags & PLLD)
                return PLLD_BASE_DSIB_MUX_MASK;
        else
                return 3 << 30;
}

static inline u32 periph_clk_source_shift(struct clk *c)
{
        if (c->flags & MUX8)
                 return 29;
        else if (c->flags & MUX_PWM)
                return 28;
        else if (c->flags & MUX_CLK_OUT)
                return c->u.periph.clk_num + 4;
        else if (c->flags & PLLD)
                return PLLD_BASE_DSIB_MUX_SHIFT;
        else
                return 30;
}

static void tegra3_periph_clk_init(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        const struct clk_mux_sel *mux = 0;
        const struct clk_mux_sel *sel;
        if (c->flags & MUX) {
                for (sel = c->inputs; sel->input != NULL; sel++) {
                        if (((val & periph_clk_source_mask(c)) >>
                            periph_clk_source_shift(c)) == sel->value)
                                mux = sel;
                }
                BUG_ON(!mux);

                c->parent = mux->input;
        } else {
                c->parent = c->inputs[0].input;
        }

        if (c->flags & DIV_U71) {
                u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK;
                if ((c->flags & DIV_U71_UART) &&
                    (!(val & PERIPH_CLK_UART_DIV_ENB))) {
                        divu71 = 0;
                }
                c->div = divu71 + 2;
                c->mul = 2;
        } else if (c->flags & DIV_U16) {
                u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK;
                c->div = divu16 + 1;
                c->mul = 1;
        } else {
                c->div = 1;
                c->mul = 1;
        }

        c->state = ON;
        if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c)))
                c->state = OFF;
        if (!(c->flags & PERIPH_NO_RESET))
                if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & PERIPH_CLK_TO_BIT(c))
                        c->state = OFF;
}

static int tegra3_periph_clk_enable(struct clk *c)
{
        pr_debug("%s on clock %s\n", __func__, c->name);

        tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++;
        if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1)
                return 0;

        clk_writel_delay(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_SET_REG(c));
        if (!(c->flags & PERIPH_NO_RESET) && !(c->flags & PERIPH_MANUAL_RESET)) {
                if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & PERIPH_CLK_TO_BIT(c)) {
                        udelay(5);      /* reset propagation delay */
                        clk_writel(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_RST_CLR_REG(c));
                }
        }
        return 0;
}

static void tegra3_periph_clk_disable(struct clk *c)
{
        unsigned long val;
        pr_debug("%s on clock %s\n", __func__, c->name);

        if (c->refcnt)
                tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--;

        if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] == 0) {
                /* If peripheral is in the APB bus then read the APB bus to
                 * flush the write operation in apb bus. This will avoid the
                 * peripheral access after disabling clock*/
                if (c->flags & PERIPH_ON_APB)
                        val = chipid_readl();

                clk_writel_delay(
                        PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_CLR_REG(c));
        }
}

static void tegra3_periph_clk_reset(struct clk *c, bool assert)
{
        unsigned long val;
        pr_debug("%s %s on clock %s\n", __func__,
                 assert ? "assert" : "deassert", c->name);

        if (!(c->flags & PERIPH_NO_RESET)) {
                if (assert) {
                        /* If peripheral is in the APB bus then read the APB
                         * bus to flush the write operation in apb bus. This
                         * will avoid the peripheral access after disabling
                         * clock */
                        if (c->flags & PERIPH_ON_APB)
                                val = chipid_readl();

                        clk_writel(PERIPH_CLK_TO_BIT(c),
                                   PERIPH_CLK_TO_RST_SET_REG(c));
                } else
                        clk_writel(PERIPH_CLK_TO_BIT(c),
                                   PERIPH_CLK_TO_RST_CLR_REG(c));
        }
}

static int tegra3_periph_clk_set_parent(struct clk *c, struct clk *p)
{
        u32 val;
        const struct clk_mux_sel *sel;
        pr_debug("%s: %s %s\n", __func__, c->name, p->name);

        if (!(c->flags & MUX))
                return (p == c->parent) ? 0 : (-EINVAL);

        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (sel->input == p) {
                        val = clk_readl(c->reg);
                        val &= ~periph_clk_source_mask(c);
                        val |= (sel->value << periph_clk_source_shift(c));

                        if (c->refcnt)
                                clk_enable(p);

                        clk_writel_delay(val, c->reg);

                        if (c->refcnt && c->parent)
                                clk_disable(c->parent);

                        clk_reparent(c, p);
                        return 0;
                }
        }

        return -EINVAL;
}

static int tegra3_periph_clk_set_rate(struct clk *c, unsigned long rate)
{
        u32 val;
        int divider;
        unsigned long parent_rate = clk_get_rate(c->parent);

        if (c->flags & DIV_U71) {
                divider = clk_div71_get_divider(
                        parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
                if (divider >= 0) {
                        val = clk_readl(c->reg);
                        val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK;
                        val |= divider;
                        if (c->flags & DIV_U71_UART) {
                                if (divider)
                                        val |= PERIPH_CLK_UART_DIV_ENB;
                                else
                                        val &= ~PERIPH_CLK_UART_DIV_ENB;
                        }
                        clk_writel_delay(val, c->reg);
                        c->div = divider + 2;
                        c->mul = 2;
                        return 0;
                }
        } else if (c->flags & DIV_U16) {
                divider = clk_div16_get_divider(parent_rate, rate);
                if (divider >= 0) {
                        val = clk_readl(c->reg);
                        val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK;
                        val |= divider;
                        clk_writel_delay(val, c->reg);
                        c->div = divider + 1;
                        c->mul = 1;
                        return 0;
                }
        } else if (parent_rate <= rate) {
                c->div = 1;
                c->mul = 1;
                return 0;
        }
        return -EINVAL;
}

static long tegra3_periph_clk_round_rate(struct clk *c,
        unsigned long rate)
{
        int divider;
        unsigned long parent_rate = clk_get_rate(c->parent);
        pr_debug("%s: %s %lu\n", __func__, c->name, rate);

        if (c->flags & DIV_U71) {
                divider = clk_div71_get_divider(
                        parent_rate, rate, c->flags, ROUND_DIVIDER_UP);
                if (divider < 0)
                        return divider;

                return DIV_ROUND_UP(parent_rate * 2, divider + 2);
        } else if (c->flags & DIV_U16) {
                divider = clk_div16_get_divider(parent_rate, rate);
                if (divider < 0)
                        return divider;
                return DIV_ROUND_UP(parent_rate, divider + 1);
        }
        return -EINVAL;
}

static struct clk_ops tegra_periph_clk_ops = {
        .init                   = &tegra3_periph_clk_init,
        .enable                 = &tegra3_periph_clk_enable,
        .disable                = &tegra3_periph_clk_disable,
        .set_parent             = &tegra3_periph_clk_set_parent,
        .set_rate               = &tegra3_periph_clk_set_rate,
        .round_rate             = &tegra3_periph_clk_round_rate,
        .reset                  = &tegra3_periph_clk_reset,
};


/* Periph extended clock configuration ops */
static int
tegra3_vi_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting)
{
        if (p == TEGRA_CLK_VI_INP_SEL) {
                u32 val = clk_readl(c->reg);
                val &= ~PERIPH_CLK_VI_SEL_EX_MASK;
                val |= (setting << PERIPH_CLK_VI_SEL_EX_SHIFT) &
                        PERIPH_CLK_VI_SEL_EX_MASK;
                clk_writel(val, c->reg);
                return 0;
        }
        return -EINVAL;
}

static struct clk_ops tegra_vi_clk_ops = {
        .init                   = &tegra3_periph_clk_init,
        .enable                 = &tegra3_periph_clk_enable,
        .disable                = &tegra3_periph_clk_disable,
        .set_parent             = &tegra3_periph_clk_set_parent,
        .set_rate               = &tegra3_periph_clk_set_rate,
        .round_rate             = &tegra3_periph_clk_round_rate,
        .clk_cfg_ex             = &tegra3_vi_clk_cfg_ex,
        .reset                  = &tegra3_periph_clk_reset,
};

static int
tegra3_nand_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting)
{
        if (p == TEGRA_CLK_NAND_PAD_DIV2_ENB) {
                u32 val = clk_readl(c->reg);
                if (setting)
                        val |= PERIPH_CLK_NAND_DIV_EX_ENB;
                else
                        val &= ~PERIPH_CLK_NAND_DIV_EX_ENB;
                clk_writel(val, c->reg);
                return 0;
        }
        return -EINVAL;
}

static struct clk_ops tegra_nand_clk_ops = {
        .init                   = &tegra3_periph_clk_init,
        .enable                 = &tegra3_periph_clk_enable,
        .disable                = &tegra3_periph_clk_disable,
        .set_parent             = &tegra3_periph_clk_set_parent,
        .set_rate               = &tegra3_periph_clk_set_rate,
        .round_rate             = &tegra3_periph_clk_round_rate,
        .clk_cfg_ex             = &tegra3_nand_clk_cfg_ex,
        .reset                  = &tegra3_periph_clk_reset,
};


static int
tegra3_dtv_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting)
{
        if (p == TEGRA_CLK_DTV_INVERT) {
                u32 val = clk_readl(c->reg);
                if (setting)
                        val |= PERIPH_CLK_DTV_POLARITY_INV;
                else
                        val &= ~PERIPH_CLK_DTV_POLARITY_INV;
                clk_writel(val, c->reg);
                return 0;
        }
        return -EINVAL;
}

static struct clk_ops tegra_dtv_clk_ops = {
        .init                   = &tegra3_periph_clk_init,
        .enable                 = &tegra3_periph_clk_enable,
        .disable                = &tegra3_periph_clk_disable,
        .set_parent             = &tegra3_periph_clk_set_parent,
        .set_rate               = &tegra3_periph_clk_set_rate,
        .round_rate             = &tegra3_periph_clk_round_rate,
        .clk_cfg_ex             = &tegra3_dtv_clk_cfg_ex,
        .reset                  = &tegra3_periph_clk_reset,
};

static int tegra3_dsib_clk_set_parent(struct clk *c, struct clk *p)
{
        const struct clk_mux_sel *sel;
        struct clk *d = tegra_get_clock_by_name("pll_d");

        pr_debug("%s: %s %s\n", __func__, c->name, p->name);

        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (sel->input == p) {
                        if (c->refcnt)
                                clk_enable(p);

                        /* The DSIB parent selection bit is in PLLD base
                           register - can not do direct r-m-w, must be
                           protected by PLLD lock */
                        tegra_clk_cfg_ex(
                                d, TEGRA_CLK_PLLD_MIPI_MUX_SEL, sel->value);

                        if (c->refcnt && c->parent)
                                clk_disable(c->parent);

                        clk_reparent(c, p);
                        return 0;
                }
        }

        return -EINVAL;
}

static struct clk_ops tegra_dsib_clk_ops = {
        .init                   = &tegra3_periph_clk_init,
        .enable                 = &tegra3_periph_clk_enable,
        .disable                = &tegra3_periph_clk_disable,
        .set_parent             = &tegra3_dsib_clk_set_parent,
        .set_rate               = &tegra3_periph_clk_set_rate,
        .round_rate             = &tegra3_periph_clk_round_rate,
        .reset                  = &tegra3_periph_clk_reset,
};

/* pciex clock support only reset function */
static struct clk_ops tegra_pciex_clk_ops = {
        .reset    = tegra3_periph_clk_reset,
};

/* Output clock ops */

static DEFINE_SPINLOCK(clk_out_lock);

static void tegra3_clk_out_init(struct clk *c)
{
        const struct clk_mux_sel *mux = 0;
        const struct clk_mux_sel *sel;
        u32 val = pmc_readl(c->reg);

        c->state = (val & (0x1 << c->u.periph.clk_num)) ? ON : OFF;
        c->mul = 1;
        c->div = 1;

        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (((val & periph_clk_source_mask(c)) >>
                     periph_clk_source_shift(c)) == sel->value)
                        mux = sel;
        }
        BUG_ON(!mux);
        c->parent = mux->input;
}

static int tegra3_clk_out_enable(struct clk *c)
{
        u32 val;
        unsigned long flags;

        pr_debug("%s on clock %s\n", __func__, c->name);

        spin_lock_irqsave(&clk_out_lock, flags);
        val = pmc_readl(c->reg);
        val |= (0x1 << c->u.periph.clk_num);
        pmc_writel(val, c->reg);
        spin_unlock_irqrestore(&clk_out_lock, flags);

        return 0;
}

static void tegra3_clk_out_disable(struct clk *c)
{
        u32 val;
        unsigned long flags;

        pr_debug("%s on clock %s\n", __func__, c->name);

        spin_lock_irqsave(&clk_out_lock, flags);
        val = pmc_readl(c->reg);
        val &= ~(0x1 << c->u.periph.clk_num);
        pmc_writel(val, c->reg);
        spin_unlock_irqrestore(&clk_out_lock, flags);
}

static int tegra3_clk_out_set_parent(struct clk *c, struct clk *p)
{
        u32 val;
        unsigned long flags;
        const struct clk_mux_sel *sel;

        pr_debug("%s: %s %s\n", __func__, c->name, p->name);

        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (sel->input == p) {
                        if (c->refcnt)
                                clk_enable(p);

                        spin_lock_irqsave(&clk_out_lock, flags);
                        val = pmc_readl(c->reg);
                        val &= ~periph_clk_source_mask(c);
                        val |= (sel->value << periph_clk_source_shift(c));
                        pmc_writel(val, c->reg);
                        spin_unlock_irqrestore(&clk_out_lock, flags);

                        if (c->refcnt && c->parent)
                                clk_disable(c->parent);

                        clk_reparent(c, p);
                        return 0;
                }
        }
        return -EINVAL;
}

static struct clk_ops tegra_clk_out_ops = {
        .init                   = &tegra3_clk_out_init,
        .enable                 = &tegra3_clk_out_enable,
        .disable                = &tegra3_clk_out_disable,
        .set_parent             = &tegra3_clk_out_set_parent,
};


/* External memory controller clock ops */
static void tegra3_emc_clk_init(struct clk *c)
{
        tegra3_periph_clk_init(c);

        /* On A01 limit EMC maximum rate to boot frequency;
           starting with A02 full PLLM range should be supported */
        if (tegra_get_revision() == TEGRA_REVISION_A01)
                c->max_rate = clk_get_rate_locked(c);
        else
                c->max_rate = clk_get_rate(c->parent);
}

static long tegra3_emc_clk_round_rate(struct clk *c, unsigned long rate)
{
        long new_rate = rate;

        new_rate = tegra_emc_round_rate(new_rate);
        if (new_rate < 0)
                new_rate = c->max_rate;

        return new_rate;
}

static int tegra3_emc_clk_set_rate(struct clk *c, unsigned long rate)
{
        int ret;
        u32 div_value;
        struct clk *p;

        /* The tegra3 memory controller has an interlock with the clock
         * block that allows memory shadowed registers to be updated,
         * and then transfer them to the main registers at the same
         * time as the clock update without glitches. During clock change
         * operation both clock parent and divider may change simultaneously
         * to achieve requested rate. */
        p = tegra_emc_predict_parent(rate, &div_value);
        div_value += 2;         /* emc has fractional DIV_U71 divider */
        if (!p)
                return -EINVAL;

        if (p == c->parent) {
                if (div_value == c->div)
                        return 0;
        } else if (c->refcnt)
                clk_enable(p);

        ret = tegra_emc_set_rate(rate);
        if (ret < 0)
                return ret;

        if (p != c->parent) {
                if(c->refcnt && c->parent)
                        clk_disable(c->parent);
                clk_reparent(c, p);
        }
        c->div = div_value;
        c->mul = 2;
        return 0;
}

static struct clk_ops tegra_emc_clk_ops = {
        .init                   = &tegra3_emc_clk_init,
        .enable                 = &tegra3_periph_clk_enable,
        .disable                = &tegra3_periph_clk_disable,
        .set_rate               = &tegra3_emc_clk_set_rate,
        .round_rate             = &tegra3_emc_clk_round_rate,
        .reset                  = &tegra3_periph_clk_reset,
        .shared_bus_update      = &tegra3_clk_shared_bus_update,
};

/* Clock doubler ops */
static void tegra3_clk_double_init(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        c->mul = val & (0x1 << c->reg_shift) ? 1 : 2;
        c->div = 1;
        c->state = ON;
        if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c)))
                c->state = OFF;
};

static int tegra3_clk_double_set_rate(struct clk *c, unsigned long rate)
{
        u32 val;
        unsigned long parent_rate = clk_get_rate(c->parent);
        if (rate == parent_rate) {
                val = clk_readl(c->reg) | (0x1 << c->reg_shift);
                clk_writel(val, c->reg);
                c->mul = 1;
                c->div = 1;
                return 0;
        } else if (rate == 2 * parent_rate) {
                val = clk_readl(c->reg) & (~(0x1 << c->reg_shift));
                clk_writel(val, c->reg);
                c->mul = 2;
                c->div = 1;
                return 0;
        }
        return -EINVAL;
}

static struct clk_ops tegra_clk_double_ops = {
        .init                   = &tegra3_clk_double_init,
        .enable                 = &tegra3_periph_clk_enable,
        .disable                = &tegra3_periph_clk_disable,
        .set_rate               = &tegra3_clk_double_set_rate,
};

/* Audio sync clock ops */
static int tegra3_sync_source_set_rate(struct clk *c, unsigned long rate)
{
        c->rate = rate;
        return 0;
}

static struct clk_ops tegra_sync_source_ops = {
        .set_rate               = &tegra3_sync_source_set_rate,
};

static void tegra3_audio_sync_clk_init(struct clk *c)
{
        int source;
        const struct clk_mux_sel *sel;
        u32 val = clk_readl(c->reg);
        c->state = (val & AUDIO_SYNC_DISABLE_BIT) ? OFF : ON;
        source = val & AUDIO_SYNC_SOURCE_MASK;
        for (sel = c->inputs; sel->input != NULL; sel++)
                if (sel->value == source)
                        break;
        BUG_ON(sel->input == NULL);
        c->parent = sel->input;
}

static int tegra3_audio_sync_clk_enable(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        clk_writel((val & (~AUDIO_SYNC_DISABLE_BIT)), c->reg);
        return 0;
}

static void tegra3_audio_sync_clk_disable(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        clk_writel((val | AUDIO_SYNC_DISABLE_BIT), c->reg);
}

static int tegra3_audio_sync_clk_set_parent(struct clk *c, struct clk *p)
{
        u32 val;
        const struct clk_mux_sel *sel;
        for (sel = c->inputs; sel->input != NULL; sel++) {
                if (sel->input == p) {
                        val = clk_readl(c->reg);
                        val &= ~AUDIO_SYNC_SOURCE_MASK;
                        val |= sel->value;

                        if (c->refcnt)
                                clk_enable(p);

                        clk_writel(val, c->reg);

                        if (c->refcnt && c->parent)
                                clk_disable(c->parent);

                        clk_reparent(c, p);
                        return 0;
                }
        }

        return -EINVAL;
}

static struct clk_ops tegra_audio_sync_clk_ops = {
        .init       = tegra3_audio_sync_clk_init,
        .enable     = tegra3_audio_sync_clk_enable,
        .disable    = tegra3_audio_sync_clk_disable,
        .set_parent = tegra3_audio_sync_clk_set_parent,
};

/* cml0 (pcie), and cml1 (sata) clock ops */
static void tegra3_cml_clk_init(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        c->state = val & (0x1 << c->u.periph.clk_num) ? ON : OFF;
}

static int tegra3_cml_clk_enable(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        val |= (0x1 << c->u.periph.clk_num);
        clk_writel(val, c->reg);
        return 0;
}

static void tegra3_cml_clk_disable(struct clk *c)
{
        u32 val = clk_readl(c->reg);
        val &= ~(0x1 << c->u.periph.clk_num);
        clk_writel(val, c->reg);
}

static struct clk_ops tegra_cml_clk_ops = {
        .init                   = &tegra3_cml_clk_init,
        .enable                 = &tegra3_cml_clk_enable,
        .disable                = &tegra3_cml_clk_disable,
};


/* cbus ops */
/*
 * Some clocks require dynamic re-locking of source PLL in order to
 * achieve frequency scaling granularity that matches characterized
 * core voltage steps. The cbus clock creates a shared bus that
 * provides a virtual root for such clocks to hide and synchronize
 * parent PLL re-locking as well as backup operations.
*/

static void tegra3_clk_cbus_init(struct clk *c)
{
        c->state = OFF;
        c->set = true;
}

static int tegra3_clk_cbus_enable(struct clk *c)
{
        return 0;
}

static long tegra3_clk_cbus_round_rate(struct clk *c, unsigned long rate)
{
        int i;

        if (!c->dvfs)
                return rate;

        /* update min now, since no dvfs table was available during init */
        if (!c->min_rate)
                c->min_rate = c->dvfs->freqs[0];

        for (i = 0; i < (c->dvfs->num_freqs - 1); i++) {
                unsigned long f = c->dvfs->freqs[i];
                if (f >= rate)
                        break;
        }
        return c->dvfs->freqs[i];
}

static int cbus_switch_one(struct clk *c, struct clk *p, u32 div, bool abort)
{
        int ret = 0;

        /* set new divider if it is bigger than the current one */
        if (c->div < c->mul * div) {
                ret = clk_set_div(c, div);
                if (ret) {
                        pr_err("%s: failed to set %s clock divider %u: %d\n",
                               __func__, c->name, div, ret);
                        if (abort)
                                return ret;
                }
        }

        ret = clk_set_parent(c, p);
        if (ret) {
                pr_err("%s: failed to set %s clock parent %s: %d\n",
                       __func__, c->name, p->name, ret);
                if (abort)
                        return ret;
        }

        /* set new divider if it is smaller than the current one */
        if (c->div > c->mul * div) {
                ret = clk_set_div(c, div);
                if (ret)
                        pr_err("%s: failed to set %s clock divider %u: %d\n",
                               __func__, c->name, div, ret);
        }

        return ret;
}

static int cbus_backup(struct clk *c)
{
        int ret;
        struct clk *user;

        list_for_each_entry(user, &c->shared_bus_list,
                        u.shared_bus_user.node) {
                bool enabled = user->u.shared_bus_user.client &&
                        (user->u.shared_bus_user.enabled ||
                        user->u.shared_bus_user.client->refcnt);
                if (enabled) {
                        ret = cbus_switch_one(user->u.shared_bus_user.client,
                                              c->shared_bus_backup.input,
                                              c->shared_bus_backup.value *
                                              user->div, true);
                        if (ret)
                                return ret;
                }
        }
        return 0;
}

static void cbus_restore(struct clk *c)
{
        struct clk *user;

        list_for_each_entry(user, &c->shared_bus_list,
                        u.shared_bus_user.node) {
                bool back = user->u.shared_bus_user.client && (c->parent !=
                        user->u.shared_bus_user.client->parent);
                if (back)
                        cbus_switch_one(user->u.shared_bus_user.client,
                                        c->parent, user->div, false);
        }
}

static int tegra3_clk_cbus_set_rate(struct clk *c, unsigned long rate)
{
        int ret;

        if (rate == 0)
                return 0;

        ret = clk_enable(c->parent);
        if (ret) {
                pr_err("%s: failed to enable %s clock: %d\n",
                       __func__, c->name, ret);
                return ret;
        }

        ret = cbus_backup(c);
        if (ret)
                goto out;

        ret = clk_set_rate(c->parent, rate);
        if (ret) {
                pr_err("%s: failed to set %s clock rate %lu: %d\n",
                       __func__, c->name, rate, ret);
                goto out;
        }

        cbus_restore(c);

out:
        clk_disable(c->parent);
        return ret;
}

static struct clk_ops tegra_clk_cbus_ops = {
        .init = tegra3_clk_cbus_init,
        .enable = tegra3_clk_cbus_enable,
        .set_rate = tegra3_clk_cbus_set_rate,
        .round_rate = tegra3_clk_cbus_round_rate,
        .shared_bus_update = tegra3_clk_shared_bus_update,
};

/* shared bus ops */
/*
 * Some clocks may have multiple downstream users that need to request a
 * higher clock rate.  Shared bus clocks provide a unique shared_bus_user
 * clock to each user.  The frequency of the bus is set to the highest
 * enabled shared_bus_user clock, with a minimum value set by the
 * shared bus.
 */

static int shared_bus_set_rate(struct clk *bus,
                                unsigned long rate, unsigned long old_rate)
{
        int ret, mv, old_mv;
        unsigned long bridge_rate = emc_bridge->u.shared_bus_user.rate;

        /* If bridge is not needed (LPDDR2) just set bus rate */
        if (bridge_rate < TEGRA_EMC_BRIDGE_RATE_MIN) {
                return clk_set_rate_locked(bus, rate);
        }

        mv = tegra_dvfs_predict_millivolts(bus, rate);
        old_mv = tegra_dvfs_predict_millivolts(bus, old_rate);
        if (IS_ERR_VALUE(mv) || IS_ERR_VALUE(old_mv)) {
                pr_err("%s: Failed to predict %s voltage for %lu => %lu\n",
                       __func__, bus->name, old_rate, rate);
        }

        /* emc bus: set bridge rate as intermediate step when crossing
         * bridge threshold in any direction
         */
        if (bus->flags & PERIPH_EMC_ENB) {
                if (((mv > TEGRA_EMC_BRIDGE_MVOLTS_MIN) &&
                     (old_rate < bridge_rate)) ||
                    ((old_mv > TEGRA_EMC_BRIDGE_MVOLTS_MIN) &&
                     (rate < bridge_rate))) {
                        ret = clk_set_rate_locked(bus, bridge_rate);
                        if (ret) {
                                pr_err("%s: Failed to set emc bridge rate %lu\n",
                                        __func__, bridge_rate);
                                return ret;
                        }
                }
                return clk_set_rate_locked(bus, rate);
        }

        /* sbus and cbus: enable/disable emc bridge user when crossing voltage
         * threshold up/down respectively; hence, emc rate is kept above the
         * bridge rate as long as any sbus or cbus user requires high voltage
         */
        if ((mv > TEGRA_EMC_BRIDGE_MVOLTS_MIN) &&
            (old_mv <= TEGRA_EMC_BRIDGE_MVOLTS_MIN)) {
                ret = clk_enable(emc_bridge);
                if (ret) {
                        pr_err("%s: Failed to enable emc bridge\n", __func__);
                        return ret;
                }
        }

        ret = clk_set_rate_locked(bus, rate);

        if ((mv <= TEGRA_EMC_BRIDGE_MVOLTS_MIN) &&
            (old_mv > TEGRA_EMC_BRIDGE_MVOLTS_MIN))
                clk_disable(emc_bridge);

        return ret;
}

static int tegra3_clk_shared_bus_update(struct clk *bus)
{
        struct clk *c;
        unsigned long old_rate;
        unsigned long rate = bus->min_rate;
        unsigned long bw = 0;
        unsigned long ceiling = bus->max_rate;

        if (detach_shared_bus)
                return 0;

        list_for_each_entry(c, &bus->shared_bus_list,
                        u.shared_bus_user.node) {
                /* Ignore requests from disabled users and from users with
                   fixed bus-to-client ratio */
                if ((c->u.shared_bus_user.enabled) &&
                    (!c->u.shared_bus_user.client_div)) {
                        switch (c->u.shared_bus_user.mode) {
                        case SHARED_BW:
                                bw += c->u.shared_bus_user.rate;
                                break;
                        case SHARED_CEILING:
                                ceiling = min(c->u.shared_bus_user.rate,
                                               ceiling);
                                break;
                        case SHARED_FLOOR:
                        default:
                                rate = max(c->u.shared_bus_user.rate, rate);
                        }
                }
        }
        rate = min(max(rate, bw), ceiling);

        old_rate = clk_get_rate_locked(bus);
        if (rate == old_rate)
                return 0;

        return shared_bus_set_rate(bus, rate, old_rate);
};

static void tegra_clk_shared_bus_init(struct clk *c)
{
        c->max_rate = c->parent->max_rate;
        c->u.shared_bus_user.rate = c->parent->max_rate;
        c->state = OFF;
        c->set = true;

        if (c->u.shared_bus_user.client_id) {
                c->u.shared_bus_user.client =
                        tegra_get_clock_by_name(c->u.shared_bus_user.client_id);
                if (!c->u.shared_bus_user.client) {
                        pr_err("%s: could not find clk %s\n", __func__,
                               c->u.shared_bus_user.client_id);
                        return;
                }
                c->div = c->u.shared_bus_user.client_div ? : 1;
                c->mul = 1;
        }

        list_add_tail(&c->u.shared_bus_user.node,
                &c->parent->shared_bus_list);
}

static int tegra_clk_shared_bus_set_rate(struct clk *c, unsigned long rate)
{
        c->u.shared_bus_user.rate = rate;
        tegra_clk_shared_bus_update(c->parent);
        return 0;
}

static long tegra_clk_shared_bus_round_rate(struct clk *c, unsigned long rate)
{
        return clk_round_rate(c->parent, rate);
}

static int tegra_clk_shared_bus_enable(struct clk *c)
{
        c->u.shared_bus_user.enabled = true;
        tegra_clk_shared_bus_update(c->parent);
        if (c->u.shared_bus_user.client) {
                return clk_enable(c->u.shared_bus_user.client);
        }
        return 0;
}

static void tegra_clk_shared_bus_disable(struct clk *c)
{
        if (c->u.shared_bus_user.client)
                clk_disable(c->u.shared_bus_user.client);
        c->u.shared_bus_user.enabled = false;
        tegra_clk_shared_bus_update(c->parent);
}

static void tegra_clk_shared_bus_reset(struct clk *c, bool assert)
{
        if (c->u.shared_bus_user.client) {
                if (c->u.shared_bus_user.client->ops &&
                    c->u.shared_bus_user.client->ops->reset)
                        c->u.shared_bus_user.client->ops->reset(
                                c->u.shared_bus_user.client, assert);
        }
}

static struct clk_ops tegra_clk_shared_bus_ops = {
        .init = tegra_clk_shared_bus_init,
        .enable = tegra_clk_shared_bus_enable,
        .disable = tegra_clk_shared_bus_disable,
        .set_rate = tegra_clk_shared_bus_set_rate,
        .round_rate = tegra_clk_shared_bus_round_rate,
        .reset = tegra_clk_shared_bus_reset,
};

/* emc bridge ops */
/* On Tegra3 platforms emc configurations for DDR3 low rates can not work
 * at high core voltage; the intermediate step (bridge) is mandatory whenever
 * core voltage is crossing the threshold: TEGRA_EMC_BRIDGE_MVOLTS_MIN (fixed
 * for the entire Tegra3 arch); also emc must run above bridge rate if any
 * other than emc clock requires high voltage. EMC bridge is implemented as a
 * special emc shared user: initialized at minimum rate until updated once by
 * emc dvfs setup; then only enabled/disabled when sbus and/or cbus voltage is
 * crossing the threshold (sbus and cbus together include all clocks that may
 * require voltage above threshold - other peripherals can reach their maximum
 * rates below threshold)
 */
static void tegra3_clk_emc_bridge_init(struct clk *c)
{
        tegra_clk_shared_bus_init(c);
        c->u.shared_bus_user.rate = 0;
}

static int tegra3_clk_emc_bridge_set_rate(struct clk *c, unsigned long rate)
{
        if (c->u.shared_bus_user.rate == 0)
                c->u.shared_bus_user.rate = rate;
        return 0;
}

static struct clk_ops tegra_clk_emc_bridge_ops = {
        .init = tegra3_clk_emc_bridge_init,
        .enable = tegra_clk_shared_bus_enable,
        .disable = tegra_clk_shared_bus_disable,
        .set_rate = tegra3_clk_emc_bridge_set_rate,
        .round_rate = tegra_clk_shared_bus_round_rate,
};

/* Clock definitions */
static struct clk tegra_clk_32k = {
        .name = "clk_32k",
        .rate = 32768,
        .ops  = NULL,
        .max_rate = 32768,
};

static struct clk tegra_clk_m = {
        .name      = "clk_m",
        .flags     = ENABLE_ON_INIT,
        .ops       = &tegra_clk_m_ops,
        .reg       = 0x1fc,
        .reg_shift = 28,
        .max_rate  = 48000000,
};

static struct clk tegra_clk_m_div2 = {
        .name      = "clk_m_div2",
        .ops       = &tegra_clk_m_div_ops,
        .parent    = &tegra_clk_m,
        .mul       = 1,
        .div       = 2,
        .state     = ON,
        .max_rate  = 24000000,
};

static struct clk tegra_clk_m_div4 = {
        .name      = "clk_m_div4",
        .ops       = &tegra_clk_m_div_ops,
        .parent    = &tegra_clk_m,
        .mul       = 1,
        .div       = 4,
        .state     = ON,
        .max_rate  = 12000000,
};

static struct clk tegra_pll_ref = {
        .name      = "pll_ref",
        .flags     = ENABLE_ON_INIT,
        .ops       = &tegra_pll_ref_ops,
        .parent    = &tegra_clk_m,
        .max_rate  = 26000000,
};

static struct clk_pll_freq_table tegra_pll_c_freq_table[] = {
        { 12000000, 1040000000, 520,  6, 1, 8},
        { 13000000, 1040000000, 480,  6, 1, 8},
        { 16800000, 1040000000, 495,  8, 1, 8},         /* actual: 1039.5 MHz */
        { 19200000, 1040000000, 325,  6, 1, 6},
        { 26000000, 1040000000, 520, 13, 1, 8},

        { 12000000, 832000000, 416,  6, 1, 8},
        { 13000000, 832000000, 832, 13, 1, 8},
        { 16800000, 832000000, 396,  8, 1, 8},          /* actual: 831.6 MHz */
        { 19200000, 832000000, 260,  6, 1, 8},
        { 26000000, 832000000, 416, 13, 1, 8},

        { 12000000, 624000000, 624, 12, 1, 8},
        { 13000000, 624000000, 624, 13, 1, 8},
        { 16800000, 600000000, 520, 14, 1, 8},
        { 19200000, 624000000, 520, 16, 1, 8},
        { 26000000, 624000000, 624, 26, 1, 8},

        { 12000000, 600000000, 600, 12, 1, 8},
        { 13000000, 600000000, 600, 13, 1, 8},
        { 16800000, 600000000, 500, 14, 1, 8},
        { 19200000, 600000000, 375, 12, 1, 6},
        { 26000000, 600000000, 600, 26, 1, 8},

        { 12000000, 520000000, 520, 12, 1, 8},
        { 13000000, 520000000, 520, 13, 1, 8},
        { 16800000, 520000000, 495, 16, 1, 8},          /* actual: 519.75 MHz */
        { 19200000, 520000000, 325, 12, 1, 6},
        { 26000000, 520000000, 520, 26, 1, 8},

        { 12000000, 416000000, 416, 12, 1, 8},
        { 13000000, 416000000, 416, 13, 1, 8},
        { 16800000, 416000000, 396, 16, 1, 8},          /* actual: 415.8 MHz */
        { 19200000, 416000000, 260, 12, 1, 6},
        { 26000000, 416000000, 416, 26, 1, 8},
        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_c = {
        .name      = "pll_c",
        .flags     = PLL_HAS_CPCON,
        .ops       = &tegra_pll_ops,
        .reg       = 0x80,
        .parent    = &tegra_pll_ref,
        .max_rate  = 1400000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 31000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 20000000,
                .vco_max   = 1400000000,
                .freq_table = tegra_pll_c_freq_table,
                .lock_delay = 300,
        },
};

static struct clk tegra_pll_c_out1 = {
        .name      = "pll_c_out1",
        .ops       = &tegra_pll_div_ops,
        .flags     = DIV_U71,
        .parent    = &tegra_pll_c,
        .reg       = 0x84,
        .reg_shift = 0,
        .max_rate  = 700000000,
};

static struct clk_pll_freq_table tegra_pll_m_freq_table[] = {
        { 12000000, 666000000, 666, 12, 1, 8},
        { 13000000, 666000000, 666, 13, 1, 8},
        { 16800000, 666000000, 555, 14, 1, 8},
        { 19200000, 666000000, 555, 16, 1, 8},
        { 26000000, 666000000, 666, 26, 1, 8},
        { 12000000, 600000000, 600, 12, 1, 8},
        { 13000000, 600000000, 600, 13, 1, 8},
        { 16800000, 600000000, 500, 14, 1, 8},
        { 19200000, 600000000, 375, 12, 1, 6},
        { 26000000, 600000000, 600, 26, 1, 8},
        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_m = {
        .name      = "pll_m",
        .flags     = PLL_HAS_CPCON | PLLM,
        .ops       = &tegra_pll_ops,
        .reg       = 0x90,
        .parent    = &tegra_pll_ref,
        .max_rate  = 800000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 31000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 20000000,
                .vco_max   = 1200000000,
                .freq_table = tegra_pll_m_freq_table,
                .lock_delay = 300,
        },
};

static struct clk tegra_pll_m_out1 = {
        .name      = "pll_m_out1",
        .ops       = &tegra_pll_div_ops,
        .flags     = DIV_U71,
        .parent    = &tegra_pll_m,
        .reg       = 0x94,
        .reg_shift = 0,
        .max_rate  = 600000000,
};

static struct clk_pll_freq_table tegra_pll_p_freq_table[] = {
        { 12000000, 216000000, 432, 12, 2, 8},
        { 13000000, 216000000, 432, 13, 2, 8},
        { 16800000, 216000000, 360, 14, 2, 8},
        { 19200000, 216000000, 360, 16, 2, 8},
        { 26000000, 216000000, 432, 26, 2, 8},
        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_p = {
        .name      = "pll_p",
        .flags     = ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON,
        .ops       = &tegra_pll_ops,
        .reg       = 0xa0,
        .parent    = &tegra_pll_ref,
        .max_rate  = 432000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 31000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 20000000,
                .vco_max   = 1400000000,
                .freq_table = tegra_pll_p_freq_table,
                .lock_delay = 300,
#ifdef CONFIG_TEGRA_SILICON_PLATFORM
                .fixed_rate = 408000000,
#else
                .fixed_rate = 216000000,
#endif
        },
};

static struct clk tegra_pll_p_out1 = {
        .name      = "pll_p_out1",
        .ops       = &tegra_pll_div_ops,
        .flags     = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED,
        .parent    = &tegra_pll_p,
        .reg       = 0xa4,
        .reg_shift = 0,
        .max_rate  = 432000000,
};

static struct clk tegra_pll_p_out2 = {
        .name      = "pll_p_out2",
        .ops       = &tegra_pll_div_ops,
        .flags     = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED,
        .parent    = &tegra_pll_p,
        .reg       = 0xa4,
        .reg_shift = 16,
        .max_rate  = 432000000,
};

static struct clk tegra_pll_p_out3 = {
        .name      = "pll_p_out3",
        .ops       = &tegra_pll_div_ops,
        .flags     = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED,
        .parent    = &tegra_pll_p,
        .reg       = 0xa8,
        .reg_shift = 0,
        .max_rate  = 432000000,
};

static struct clk tegra_pll_p_out4 = {
        .name      = "pll_p_out4",
        .ops       = &tegra_pll_div_ops,
        .flags     = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED,
        .parent    = &tegra_pll_p,
        .reg       = 0xa8,
        .reg_shift = 16,
        .max_rate  = 432000000,
};

static struct clk_pll_freq_table tegra_pll_a_freq_table[] = {
        { 9600000, 564480000, 294, 5, 1, 4},
        { 9600000, 552960000, 288, 5, 1, 4},
        { 9600000, 24000000,  5,   2, 1, 1},

        { 28800000, 56448000, 49, 25, 1, 1},
        { 28800000, 73728000, 64, 25, 1, 1},
        { 28800000, 24000000,  5,  6, 1, 1},
        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_a = {
        .name      = "pll_a",
        .flags     = PLL_HAS_CPCON,
        .ops       = &tegra_pll_ops,
        .reg       = 0xb0,
        .parent    = &tegra_pll_p_out1,
        .max_rate  = 700000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 31000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 20000000,
                .vco_max   = 1400000000,
                .freq_table = tegra_pll_a_freq_table,
                .lock_delay = 300,
        },
};

static struct clk tegra_pll_a_out0 = {
        .name      = "pll_a_out0",
        .ops       = &tegra_pll_div_ops,
        .flags     = DIV_U71,
        .parent    = &tegra_pll_a,
        .reg       = 0xb4,
        .reg_shift = 0,
        .max_rate  = 100000000,
};

static struct clk_pll_freq_table tegra_pll_d_freq_table[] = {
        { 12000000, 216000000, 216, 12, 1, 4},
        { 13000000, 216000000, 216, 13, 1, 4},
        { 16800000, 216000000, 180, 14, 1, 4},
        { 19200000, 216000000, 180, 16, 1, 4},
        { 26000000, 216000000, 216, 26, 1, 4},

        { 12000000, 594000000, 594, 12, 1, 8},
        { 13000000, 594000000, 594, 13, 1, 8},
        { 16800000, 594000000, 495, 14, 1, 8},
        { 19200000, 594000000, 495, 16, 1, 8},
        { 26000000, 594000000, 594, 26, 1, 8},

        { 12000000, 1000000000, 1000, 12, 1, 12},
        { 13000000, 1000000000, 1000, 13, 1, 12},
        { 19200000, 1000000000, 625,  12, 1, 8},
        { 26000000, 1000000000, 1000, 26, 1, 12},

        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_d = {
        .name      = "pll_d",
        .flags     = PLL_HAS_CPCON | PLLD,
        .ops       = &tegra_plld_ops,
        .reg       = 0xd0,
        .parent    = &tegra_pll_ref,
        .max_rate  = 1000000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 40000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 40000000,
                .vco_max   = 1000000000,
                .freq_table = tegra_pll_d_freq_table,
                .lock_delay = 1000,
        },
};

static struct clk tegra_pll_d_out0 = {
        .name      = "pll_d_out0",
        .ops       = &tegra_pll_div_ops,
        .flags     = DIV_2 | PLLD,
        .parent    = &tegra_pll_d,
        .max_rate  = 500000000,
};

static struct clk tegra_pll_d2 = {
        .name      = "pll_d2",
        .flags     = PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLD,
        .ops       = &tegra_plld_ops,
        .reg       = 0x4b8,
        .parent    = &tegra_pll_ref,
        .max_rate  = 1000000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 40000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 40000000,
                .vco_max   = 1000000000,
                .freq_table = tegra_pll_d_freq_table,
                .lock_delay = 1000,
        },
};

static struct clk tegra_pll_d2_out0 = {
        .name      = "pll_d2_out0",
        .ops       = &tegra_pll_div_ops,
        .flags     = DIV_2 | PLLD,
        .parent    = &tegra_pll_d2,
        .max_rate  = 500000000,
};

static struct clk_pll_freq_table tegra_pll_u_freq_table[] = {
        { 12000000, 480000000, 960, 12, 2, 12},
        { 13000000, 480000000, 960, 13, 2, 12},
        { 16800000, 480000000, 400, 7,  2, 5},
        { 19200000, 480000000, 200, 4,  2, 3},
        { 26000000, 480000000, 960, 26, 2, 12},
        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_u = {
        .name      = "pll_u",
        .flags     = PLL_HAS_CPCON | PLLU,
        .ops       = &tegra_pll_ops,
        .reg       = 0xc0,
        .parent    = &tegra_pll_ref,
        .max_rate  = 480000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 40000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 480000000,
                .vco_max   = 960000000,
                .freq_table = tegra_pll_u_freq_table,
                .lock_delay = 1000,
        },
};

static struct clk_pll_freq_table tegra_pll_x_freq_table[] = {
        /* 1.4 GHz */
        { 12000000, 1400000000, 700,  6,  1, 8},
        { 13000000, 1400000000, 969,  9,  1, 8},        /* actual: 1399.7 MHz */
        { 16800000, 1400000000, 1000, 12, 1, 8},
        { 19200000, 1400000000, 875,  12, 1, 8},
        { 26000000, 1400000000, 700,  13, 1, 8},

        /* 1.3 GHz */
        { 12000000, 1300000000, 975,  9,  1, 8},
        { 13000000, 1300000000, 1000, 10, 1, 8},
        { 16800000, 1300000000, 928,  12, 1, 8},        /* actual: 1299.2 MHz */
        { 19200000, 1300000000, 812,  12, 1, 8},        /* actual: 1299.2 MHz */
        { 26000000, 1300000000, 650,  13, 1, 8},

        /* 1.2 GHz */
        { 12000000, 1200000000, 1000, 10, 1, 8},
        { 13000000, 1200000000, 923,  10, 1, 8},        /* actual: 1199.9 MHz */
        { 16800000, 1200000000, 1000, 14, 1, 8},
        { 19200000, 1200000000, 1000, 16, 1, 8},
        { 26000000, 1200000000, 600,  13, 1, 8},

        /* 1.1 GHz */
        { 12000000, 1100000000, 825,  9,  1, 8},
        { 13000000, 1100000000, 846,  10, 1, 8},        /* actual: 1099.8 MHz */
        { 16800000, 1100000000, 982,  15, 1, 8},        /* actual: 1099.8 MHz */
        { 19200000, 1100000000, 859,  15, 1, 8},        /* actual: 1099.5 MHz */
        { 26000000, 1100000000, 550,  13, 1, 8},

        /* 1 GHz */
        { 12000000, 1000000000, 1000, 12, 1, 8},
        { 13000000, 1000000000, 1000, 13, 1, 8},
        { 16800000, 1000000000, 833,  14, 1, 8},        /* actual: 999.6 MHz */
        { 19200000, 1000000000, 625,  12, 1, 8},
        { 26000000, 1000000000, 1000, 26, 1, 8},

        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_x = {
        .name      = "pll_x",
        .flags     = PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLX,
        .ops       = &tegra_pll_ops,
        .reg       = 0xe0,
        .parent    = &tegra_pll_ref,
        .max_rate  = 1400000000,
        .u.pll = {
                .input_min = 2000000,
                .input_max = 31000000,
                .cf_min    = 1000000,
                .cf_max    = 6000000,
                .vco_min   = 20000000,
                .vco_max   = 1400000000,
                .freq_table = tegra_pll_x_freq_table,
                .lock_delay = 300,
        },
};

static struct clk tegra_pll_x_out0 = {
        .name      = "pll_x_out0",
        .ops       = &tegra_pll_div_ops,
        .flags     = DIV_2 | PLLX,
        .parent    = &tegra_pll_x,
        .max_rate  = 700000000,
};


static struct clk_pll_freq_table tegra_pll_e_freq_table[] = {
        /* PLLE special case: use cpcon field to store cml divider value */
        { 12000000,  100000000, 150, 1,  18, 11},
        { 216000000, 100000000, 200, 18, 24, 13},
#ifndef CONFIG_TEGRA_SILICON_PLATFORM
        { 13000000,  100000000, 200, 1,  26, 13},
#endif
        { 0, 0, 0, 0, 0, 0 },
};

static struct clk tegra_pll_e = {
        .name      = "pll_e",
        .flags     = PLL_ALT_MISC_REG,
        .ops       = &tegra_plle_ops,
        .reg       = 0xe8,
        .max_rate  = 100000000,
        .u.pll = {
                .input_min = 12000000,
                .input_max = 216000000,
                .cf_min    = 12000000,
                .cf_max    = 12000000,
                .vco_min   = 1200000000,
                .vco_max   = 2400000000U,
                .freq_table = tegra_pll_e_freq_table,
                .lock_delay = 300,
                .fixed_rate = 100000000,
        },
};

static struct clk tegra_cml0_clk = {
        .name      = "cml0",
        .parent    = &tegra_pll_e,
        .ops       = &tegra_cml_clk_ops,
        .reg       = PLLE_AUX,
        .max_rate  = 100000000,
        .u.periph  = {
                .clk_num = 0,
        },
};

static struct clk tegra_cml1_clk = {
        .name      = "cml1",
        .parent    = &tegra_pll_e,
        .ops       = &tegra_cml_clk_ops,
        .reg       = PLLE_AUX,
        .max_rate  = 100000000,
        .u.periph  = {
                .clk_num   = 1,
        },
};

static struct clk tegra_pciex_clk = {
        .name      = "pciex",
        .parent    = &tegra_pll_e,
        .ops       = &tegra_pciex_clk_ops,
        .max_rate  = 100000000,
        .u.periph  = {
                .clk_num   = 74,
        },
};

/* Audio sync clocks */
#define SYNC_SOURCE(_id)                                \
        {                                               \
                .name      = #_id "_sync",              \
                .rate      = 24000000,                  \
                .max_rate  = 24000000,                  \
                .ops       = &tegra_sync_source_ops     \
        }
static struct clk tegra_sync_source_list[] = {
        SYNC_SOURCE(spdif_in),
        SYNC_SOURCE(i2s0),
        SYNC_SOURCE(i2s1),
        SYNC_SOURCE(i2s2),
        SYNC_SOURCE(i2s3),
        SYNC_SOURCE(i2s4),
        SYNC_SOURCE(vimclk),
};

static struct clk_mux_sel mux_audio_sync_clk[] =
{
        { .input = &tegra_sync_source_list[0],  .value = 0},
        { .input = &tegra_sync_source_list[1],  .value = 1},
        { .input = &tegra_sync_source_list[2],  .value = 2},
        { .input = &tegra_sync_source_list[3],  .value = 3},
        { .input = &tegra_sync_source_list[4],  .value = 4},
        { .input = &tegra_sync_source_list[5],  .value = 5},
        { .input = &tegra_pll_a_out0,           .value = 6},
        { .input = &tegra_sync_source_list[6],  .value = 7},
        { 0, 0 }
};

#define AUDIO_SYNC_CLK(_id, _index)                     \
        {                                               \
                .name      = #_id,                      \
                .inputs    = mux_audio_sync_clk,        \
                .reg       = 0x4A0 + (_index) * 4,      \
                .max_rate  = 24000000,                  \
                .ops       = &tegra_audio_sync_clk_ops  \
        }
static struct clk tegra_clk_audio_list[] = {
        AUDIO_SYNC_CLK(audio0, 0),
        AUDIO_SYNC_CLK(audio1, 1),
        AUDIO_SYNC_CLK(audio2, 2),
        AUDIO_SYNC_CLK(audio3, 3),
        AUDIO_SYNC_CLK(audio4, 4),
        AUDIO_SYNC_CLK(audio, 5),       /* SPDIF */
};

#define AUDIO_SYNC_2X_CLK(_id, _index)                          \
        {                                                       \
                .name      = #_id "_2x",                        \
                .flags     = PERIPH_NO_RESET,                   \
                .max_rate  = 48000000,                          \
                .ops       = &tegra_clk_double_ops,             \
                .reg       = 0x49C,                             \
                .reg_shift = 24 + (_index),                     \
                .parent    = &tegra_clk_audio_list[(_index)],   \
                .u.periph = {                                   \
                        .clk_num = 113 + (_index),              \
                },                                              \
        }
static struct clk tegra_clk_audio_2x_list[] = {
        AUDIO_SYNC_2X_CLK(audio0, 0),
        AUDIO_SYNC_2X_CLK(audio1, 1),
        AUDIO_SYNC_2X_CLK(audio2, 2),
        AUDIO_SYNC_2X_CLK(audio3, 3),
        AUDIO_SYNC_2X_CLK(audio4, 4),
        AUDIO_SYNC_2X_CLK(audio, 5),    /* SPDIF */
};

#define MUX_I2S_SPDIF(_id, _index)                                      \
static struct clk_mux_sel mux_pllaout0_##_id##_2x_pllp_clkm[] = {       \
        {.input = &tegra_pll_a_out0, .value = 0},                       \
        {.input = &tegra_clk_audio_2x_list[(_index)], .value = 1},      \
        {.input = &tegra_pll_p, .value = 2},                            \
        {.input = &tegra_clk_m, .value = 3},                            \
        { 0, 0},                                                        \
}
MUX_I2S_SPDIF(audio0, 0);
MUX_I2S_SPDIF(audio1, 1);
MUX_I2S_SPDIF(audio2, 2);
MUX_I2S_SPDIF(audio3, 3);
MUX_I2S_SPDIF(audio4, 4);
MUX_I2S_SPDIF(audio, 5);                /* SPDIF */

/* External clock outputs (through PMC) */
#define MUX_EXTERN_OUT(_id)                                             \
static struct clk_mux_sel mux_clkm_clkm2_clkm4_extern##_id[] = {        \
        {.input = &tegra_clk_m,         .value = 0},                    \
        {.input = &tegra_clk_m_div2,    .value = 1},                    \
        {.input = &tegra_clk_m_div4,    .value = 2},                    \
        {.input = NULL,                 .value = 3}, /* placeholder */  \
        { 0, 0},                                                        \
}
MUX_EXTERN_OUT(1);
MUX_EXTERN_OUT(2);
MUX_EXTERN_OUT(3);

static struct clk_mux_sel *mux_extern_out_list[] = {
        mux_clkm_clkm2_clkm4_extern1,
        mux_clkm_clkm2_clkm4_extern2,
        mux_clkm_clkm2_clkm4_extern3,
};

#define CLK_OUT_CLK(_id)                                        \
        {                                                       \
                .name      = "clk_out_" #_id,                   \
                .lookup    = {                                  \
                        .dev_id    = "clk_out_" #_id,           \
                        .con_id    = "extern" #_id,             \
                },                                              \
                .ops       = &tegra_clk_out_ops,                \
                .reg       = 0x1a8,                             \
                .inputs    = mux_clkm_clkm2_clkm4_extern##_id,  \
                .flags     = MUX_CLK_OUT,                       \
                .max_rate  = 216000000,                         \
                .u.periph = {                                   \
                        .clk_num   = (_id - 1) * 8 + 2,         \
                },                                              \
        }
static struct clk tegra_clk_out_list[] = {
        CLK_OUT_CLK(1),
        CLK_OUT_CLK(2),
        CLK_OUT_CLK(3),
};

/* called after peripheral external clocks are initialized */
static void init_clk_out_mux(void)
{
        int i;
        struct clk *c;

        /* output clock con_id is the name of peripheral
           external clock connected to input 3 of the output mux */
        for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++) {
                c = tegra_get_clock_by_name(
                        tegra_clk_out_list[i].lookup.con_id);
                if (!c)
                        pr_err("%s: could not find clk %s\n", __func__,
                               tegra_clk_out_list[i].lookup.con_id);
                mux_extern_out_list[i][3].input = c;
        }
}

/* Peripheral muxes */
static struct clk_mux_sel mux_cclk_g[] = {
        { .input = &tegra_clk_m,        .value = 0},
        { .input = &tegra_pll_c,        .value = 1},
        { .input = &tegra_clk_32k,      .value = 2},
        { .input = &tegra_pll_m,        .value = 3},
        { .input = &tegra_pll_p,        .value = 4},
        { .input = &tegra_pll_p_out4,   .value = 5},
        { .input = &tegra_pll_p_out3,   .value = 6},
        /* { .input = &tegra_clk_d,     .value = 7}, - no use on tegra3 */
        { .input = &tegra_pll_x,        .value = 8},
        { 0, 0},
};

static struct clk_mux_sel mux_cclk_lp[] = {
        { .input = &tegra_clk_m,        .value = 0},
        { .input = &tegra_pll_c,        .value = 1},
        { .input = &tegra_clk_32k,      .value = 2},
        { .input = &tegra_pll_m,        .value = 3},
        { .input = &tegra_pll_p,        .value = 4},
        { .input = &tegra_pll_p_out4,   .value = 5},
        { .input = &tegra_pll_p_out3,   .value = 6},
        /* { .input = &tegra_clk_d,     .value = 7}, - no use on tegra3 */
        { .input = &tegra_pll_x_out0,   .value = 8},
        { .input = &tegra_pll_x,        .value = 8 | SUPER_LP_DIV2_BYPASS},
        { 0, 0},
};

static struct clk_mux_sel mux_sclk[] = {
        { .input = &tegra_clk_m,        .value = 0},
        { .input = &tegra_pll_c_out1,   .value = 1},
        { .input = &tegra_pll_p_out4,   .value = 2},
        { .input = &tegra_pll_p_out3,   .value = 3},
        { .input = &tegra_pll_p_out2,   .value = 4},
        /* { .input = &tegra_clk_d,     .value = 5}, - no use on tegra3 */
        { .input = &tegra_clk_32k,      .value = 6},
        { .input = &tegra_pll_m_out1,   .value = 7},
        { 0, 0},
};

static struct clk tegra_clk_cclk_g = {
        .name   = "cclk_g",
        .flags  = DIV_U71 | DIV_U71_INT,
        .inputs = mux_cclk_g,
        .reg    = 0x368,
        .ops    = &tegra_super_ops,
        .max_rate = 1400000000,
};

static struct clk tegra_clk_cclk_lp = {
        .name   = "cclk_lp",
        .flags  = DIV_2 | DIV_U71 | DIV_U71_INT,
        .inputs = mux_cclk_lp,
        .reg    = 0x370,
        .ops    = &tegra_super_ops,
        .max_rate = 620000000,
};

static struct clk tegra_clk_sclk = {
        .name   = "sclk",
        .inputs = mux_sclk,
        .reg    = 0x28,
        .ops    = &tegra_super_ops,
        .max_rate = 334000000,
        .min_rate = 40000000,
};

static struct clk tegra_clk_virtual_cpu_g = {
        .name      = "cpu_g",
        .parent    = &tegra_clk_cclk_g,
        .ops       = &tegra_cpu_ops,
        .max_rate  = 1400000000,
        .u.cpu = {
                .main      = &tegra_pll_x,
                .backup    = &tegra_pll_p,
                .mode      = MODE_G,
        },
};

static struct clk tegra_clk_virtual_cpu_lp = {
        .name      = "cpu_lp",
        .parent    = &tegra_clk_cclk_lp,
        .ops       = &tegra_cpu_ops,
        .max_rate  = 620000000,
        .u.cpu = {
                .main      = &tegra_pll_x,
                .backup    = &tegra_pll_p,
                .mode      = MODE_LP,
        },
};

static struct clk_mux_sel mux_cpu_cmplx[] = {
        { .input = &tegra_clk_virtual_cpu_g,    .value = 0},
        { .input = &tegra_clk_virtual_cpu_lp,   .value = 1},
        { 0, 0},
};

static struct clk tegra_clk_cpu_cmplx = {
        .name      = "cpu",
        .inputs    = mux_cpu_cmplx,
        .ops       = &tegra_cpu_cmplx_ops,
        .max_rate  = 1400000000,
};

static struct clk tegra_clk_cop = {
        .name      = "cop",
        .parent    = &tegra_clk_sclk,
        .ops       = &tegra_cop_ops,
        .max_rate  = 334000000,
};

static struct clk tegra_clk_hclk = {
        .name           = "hclk",
        .flags          = DIV_BUS,
        .parent         = &tegra_clk_sclk,
        .reg            = 0x30,
        .reg_shift      = 4,
        .ops            = &tegra_bus_ops,
        .max_rate       = 334000000,
        .min_rate       = 40000000,
};

static struct clk tegra_clk_pclk = {
        .name           = "pclk",
        .flags          = DIV_BUS,
        .parent         = &tegra_clk_hclk,
        .reg            = 0x30,
        .reg_shift      = 0,
        .ops            = &tegra_bus_ops,
        .max_rate       = 167000000,
        .min_rate       = 40000000,
};

static struct raw_notifier_head sbus_rate_change_nh;

static struct clk tegra_clk_sbus_cmplx = {
        .name      = "sbus",
        .parent    = &tegra_clk_sclk,
        .ops       = &tegra_sbus_cmplx_ops,
        .u.system  = {
                .pclk = &tegra_clk_pclk,
                .hclk = &tegra_clk_hclk,
                .sclk_low = &tegra_pll_p_out4,
                .sclk_high = &tegra_pll_m_out1,
#ifdef CONFIG_TEGRA_SILICON_PLATFORM
                .threshold = 204000000, /* exact factor of low range pll_p */
#else
                .threshold = 108000000, /* exact factor of low range pll_p */
#endif
        },
        .rate_change_nh = &sbus_rate_change_nh,
};

static struct clk tegra_clk_blink = {
        .name           = "blink",
        .parent         = &tegra_clk_32k,
        .reg            = 0x40,
        .ops            = &tegra_blink_clk_ops,
        .max_rate       = 32768,
};

static struct clk_mux_sel mux_pllm_pllc_pllp_plla[] = {
        { .input = &tegra_pll_m, .value = 0},
        { .input = &tegra_pll_c, .value = 1},
        { .input = &tegra_pll_p, .value = 2},
        { .input = &tegra_pll_a_out0, .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllm_pllc_pllp_clkm[] = {
        { .input = &tegra_pll_m, .value = 0},
        /* { .input = &tegra_pll_c, .value = 1}, not used on tegra3 */
        { .input = &tegra_pll_p, .value = 2},
        { .input = &tegra_clk_m, .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_pllc_pllm_clkm[] = {
        { .input = &tegra_pll_p, .value = 0},
        { .input = &tegra_pll_c, .value = 1},
        { .input = &tegra_pll_m, .value = 2},
        { .input = &tegra_clk_m, .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_clkm[] = {
        { .input = &tegra_pll_p, .value = 0},
        { .input = &tegra_clk_m, .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_plld_pllc_clkm[] = {
        {.input = &tegra_pll_p, .value = 0},
        {.input = &tegra_pll_d_out0, .value = 1},
        {.input = &tegra_pll_c, .value = 2},
        {.input = &tegra_clk_m, .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_pllm_plld_plla_pllc_plld2_clkm[] = {
        {.input = &tegra_pll_p, .value = 0},
        {.input = &tegra_pll_m, .value = 1},
        {.input = &tegra_pll_d_out0, .value = 2},
        {.input = &tegra_pll_a_out0, .value = 3},
        {.input = &tegra_pll_c, .value = 4},
        {.input = &tegra_pll_d2_out0, .value = 5},
        {.input = &tegra_clk_m, .value = 6},
        { 0, 0},
};

static struct clk_mux_sel mux_plla_pllc_pllp_clkm[] = {
        { .input = &tegra_pll_a_out0, .value = 0},
        { .input = &tegra_pll_c, .value = 1},
        { .input = &tegra_pll_p, .value = 2},
        { .input = &tegra_clk_m, .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_pllc_clk32_clkm[] = {
        {.input = &tegra_pll_p,     .value = 0},
        {.input = &tegra_pll_c,     .value = 1},
        {.input = &tegra_clk_32k,   .value = 2},
        {.input = &tegra_clk_m,     .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_pllc_clkm_clk32[] = {
        {.input = &tegra_pll_p,     .value = 0},
        {.input = &tegra_pll_c,     .value = 1},
        {.input = &tegra_clk_m,     .value = 2},
        {.input = &tegra_clk_32k,   .value = 3},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_pllc_pllm[] = {
        {.input = &tegra_pll_p,     .value = 0},
        {.input = &tegra_pll_c,     .value = 1},
        {.input = &tegra_pll_m,     .value = 2},
        { 0, 0},
};

static struct clk_mux_sel mux_clk_m[] = {
        { .input = &tegra_clk_m, .value = 0},
        { 0, 0},
};

static struct clk_mux_sel mux_pllp_out3[] = {
        { .input = &tegra_pll_p_out3, .value = 0},
        { 0, 0},
};

static struct clk_mux_sel mux_plld_out0[] = {
        { .input = &tegra_pll_d_out0, .value = 0},
        { 0, 0},
};

static struct clk_mux_sel mux_plld_out0_plld2_out0[] = {
        { .input = &tegra_pll_d_out0,  .value = 0},
        { .input = &tegra_pll_d2_out0, .value = 1},
        { 0, 0},
};

static struct clk_mux_sel mux_clk_32k[] = {
        { .input = &tegra_clk_32k, .value = 0},
        { 0, 0},
};

static struct clk_mux_sel mux_plla_clk32_pllp_clkm_plle[] = {
        { .input = &tegra_pll_a_out0, .value = 0},
        { .input = &tegra_clk_32k,    .value = 1},
        { .input = &tegra_pll_p,      .value = 2},
        { .input = &tegra_clk_m,      .value = 3},
        { .input = &tegra_pll_e,      .value = 4},
        { 0, 0},
};

static struct raw_notifier_head emc_rate_change_nh;

static struct clk tegra_clk_emc = {
        .name = "emc",
        .ops = &tegra_emc_clk_ops,
        .reg = 0x19c,
        .max_rate = 800000000,
        .min_rate = 25000000,
        .inputs = mux_pllm_pllc_pllp_clkm,
        .flags = MUX | DIV_U71 | PERIPH_EMC_ENB,
        .u.periph = {
                .clk_num = 57,
        },
        .rate_change_nh = &emc_rate_change_nh,
};

static struct clk tegra_clk_emc_bridge = {
        .name      = "bridge.emc",
        .ops       = &tegra_clk_emc_bridge_ops,
        .parent    = &tegra_clk_emc,
};

static struct clk tegra_clk_cbus = {
        .name      = "cbus",
        .parent    = &tegra_pll_c,
        .ops       = &tegra_clk_cbus_ops,
        .max_rate  = 700000000,
        .shared_bus_backup = {
                .input = &tegra_pll_p,
                .value = 2,
        }
};

#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _max, _inputs, _flags) \
        {                                               \
                .name      = _name,                     \
                .lookup    = {                          \
                        .dev_id    = _dev,              \
                        .con_id    = _con,              \
                },                                      \
                .ops       = &tegra_periph_clk_ops,     \
                .reg       = _reg,                      \
                .inputs    = _inputs,                   \
                .flags     = _flags,                    \
                .max_rate  = _max,                      \
                .u.periph = {                           \
                        .clk_num   = _clk_num,          \
                },                                      \
        }

#define PERIPH_CLK_EX(_name, _dev, _con, _clk_num, _reg, _max, _inputs, \
                        _flags, _ops)                                   \
        {                                               \
                .name      = _name,                     \
                .lookup    = {                          \
                        .dev_id    = _dev,              \
                        .con_id    = _con,              \
                },                                      \
                .ops       = _ops,                      \
                .reg       = _reg,                      \
                .inputs    = _inputs,                   \
                .flags     = _flags,                    \
                .max_rate  = _max,                      \
                .u.periph = {                           \
                        .clk_num   = _clk_num,          \
                },                                      \
        }

#define SHARED_CLK(_name, _dev, _con, _parent, _id, _div, _mode)\
        {                                               \
                .name      = _name,                     \
                .lookup    = {                          \
                        .dev_id    = _dev,              \
                        .con_id    = _con,              \
                },                                      \
                .ops       = &tegra_clk_shared_bus_ops, \
                .parent = _parent,                      \
                .u.shared_bus_user = {                  \
                        .client_id = _id,               \
                        .client_div = _div,             \
                        .mode = _mode,                  \
                },                                      \
        }
struct clk tegra_list_clks[] = {
        PERIPH_CLK("apbdma",    "tegra-dma",            NULL,   34,     0,      26000000,  mux_clk_m,                   0),
        PERIPH_CLK("rtc",       "rtc-tegra",            NULL,   4,      0,      32768,     mux_clk_32k,                 PERIPH_NO_RESET | PERIPH_ON_APB),
        PERIPH_CLK("kbc",       "tegra-kbc",            NULL,   36,     0,      32768,     mux_clk_32k,                 PERIPH_NO_RESET | PERIPH_ON_APB),
        PERIPH_CLK("timer",     "timer",                NULL,   5,      0,      26000000,  mux_clk_m,                   0),
        PERIPH_CLK("kfuse",     "kfuse-tegra",          NULL,   40,     0,      26000000,  mux_clk_m,                   0),
        PERIPH_CLK("fuse",      "fuse-tegra",           "fuse", 39,     0,      26000000,  mux_clk_m,                   PERIPH_ON_APB),
        PERIPH_CLK("fuse_burn", "fuse-tegra",           "fuse_burn",    39,     0,      26000000,  mux_clk_m,           PERIPH_ON_APB),
        PERIPH_CLK("apbif",     "tegra30-ahub",         "apbif", 107,   0,      26000000,  mux_clk_m,                   0),
        PERIPH_CLK("i2s0",      "tegra30-i2s.0",        NULL,   30,     0x1d8,  26000000,  mux_pllaout0_audio0_2x_pllp_clkm,    MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("i2s1",      "tegra30-i2s.1",        NULL,   11,     0x100,  26000000,  mux_pllaout0_audio1_2x_pllp_clkm,    MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("i2s2",      "tegra30-i2s.2",        NULL,   18,     0x104,  26000000,  mux_pllaout0_audio2_2x_pllp_clkm,    MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("i2s3",      "tegra30-i2s.3",        NULL,   101,    0x3bc,  26000000,  mux_pllaout0_audio3_2x_pllp_clkm,    MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("i2s4",      "tegra30-i2s.4",        NULL,   102,    0x3c0,  26000000,  mux_pllaout0_audio4_2x_pllp_clkm,    MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("spdif_out", "spdif_out",            NULL,   10,     0x108,  100000000, mux_pllaout0_audio_2x_pllp_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("spdif_in",  "spdif_in",             NULL,   10,     0x10c,  100000000, mux_pllp_pllc_pllm,          MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("pwm",       "pwm",                  NULL,   17,     0x110,  432000000, mux_pllp_pllc_clk32_clkm,    MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("d_audio",   "tegra30-ahub",         "d_audio", 106, 0x3d0,  48000000,  mux_plla_pllc_pllp_clkm,     MUX | DIV_U71),
        PERIPH_CLK("dam0",      "dam.0",                NULL,   108,    0x3d8,  48000000,  mux_plla_pllc_pllp_clkm,     MUX | DIV_U71),
        PERIPH_CLK("dam1",      "dam.1",                NULL,   109,    0x3dc,  48000000,  mux_plla_pllc_pllp_clkm,     MUX | DIV_U71),
        PERIPH_CLK("dam2",      "dam.2",                NULL,   110,    0x3e0,  48000000,  mux_plla_pllc_pllp_clkm,     MUX | DIV_U71),
        PERIPH_CLK("hda",       "hda",                  NULL,   125,    0x428,  108000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
        PERIPH_CLK("hda2codec_2x",      "hda2codec_2x", NULL,   111,    0x3e4,  48000000,  mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
        PERIPH_CLK("hda2hdmi",  "hda2hdmi",             NULL,   128,    0,      48000000,  mux_clk_m,                   0),
        PERIPH_CLK("xio",       "xio",                  NULL,   45,     0x120,  150000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
        PERIPH_CLK("twc",       "twc",                  NULL,   16,     0x12c,  150000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sbc1",      "spi_tegra.0",          NULL,   41,     0x134,  160000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sbc2",      "spi_tegra.1",          NULL,   44,     0x118,  160000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sbc3",      "spi_tegra.2",          NULL,   46,     0x11c,  160000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sbc4",      "spi_tegra.3",          NULL,   68,     0x1b4,  160000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sbc5",      "spi_tegra.4",          NULL,   104,    0x3c8,  160000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sbc6",      "spi_tegra.5",          NULL,   105,    0x3cc,  160000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sata_oob",  "tegra_sata_oob",       NULL,   123,    0x420,  216000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
        PERIPH_CLK("sata",      "tegra_sata",           NULL,   124,    0x424,  216000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
        PERIPH_CLK("sata_cold", "tegra_sata_cold",      NULL,   129,    0,      48000000,  mux_clk_m,                   0),
        PERIPH_CLK_EX("ndflash","tegra_nand",           NULL,   13,     0x160,  240000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71,  &tegra_nand_clk_ops),
        PERIPH_CLK("ndspeed",   "tegra_nand_speed",     NULL,   80,     0x3f8,  240000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
        PERIPH_CLK("vfir",      "vfir",                 NULL,   7,      0x168,  72000000,  mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("sdmmc1",    "sdhci-tegra.0",        NULL,   14,     0x150,  208000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71), /* scales with voltage */
        PERIPH_CLK("sdmmc2",    "sdhci-tegra.1",        NULL,   9,      0x154,  104000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71), /* scales with voltage */
        PERIPH_CLK("sdmmc3",    "sdhci-tegra.2",        NULL,   69,     0x1bc,  208000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71), /* scales with voltage */
        PERIPH_CLK("sdmmc4",    "sdhci-tegra.3",        NULL,   15,     0x164,  104000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71), /* scales with voltage */
        PERIPH_CLK("vcp",       "tegra-avp",            "vcp",  29,     0,      250000000, mux_clk_m,                   0),
        PERIPH_CLK("bsea",      "tegra-avp",            "bsea", 62,     0,      250000000, mux_clk_m,                   0),
        PERIPH_CLK("vcp",       "nvavp",                "vcp",  29,     0,      250000000, mux_clk_m,                   0),
        PERIPH_CLK("bsea",      "nvavp",                "bsea", 62,     0,      250000000, mux_clk_m,                   0),
        PERIPH_CLK("bsev",      "tegra-aes",            "bsev", 63,     0,      250000000, mux_clk_m,                   0),
        PERIPH_CLK("vde",       "vde",                  NULL,   61,     0x1c8,  520000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_INT),
        PERIPH_CLK("csite",     "csite",                NULL,   73,     0x1d4,  144000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71), /* max rate ??? */
        PERIPH_CLK("la",        "la",                   NULL,   76,     0x1f8,  26000000,  mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71),
        PERIPH_CLK("owr",       "tegra_w1",             NULL,   71,     0x1cc,  26000000,  mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("nor",       "nor",                  NULL,   42,     0x1d0,  127000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71), /* requires min voltage */
        PERIPH_CLK("mipi",      "mipi",                 NULL,   50,     0x174,  60000000,  mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | PERIPH_ON_APB), /* scales with voltage */
        PERIPH_CLK("i2c1",      "tegra-i2c.0",          NULL,   12,     0x124,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
        PERIPH_CLK("i2c2",      "tegra-i2c.1",          NULL,   54,     0x198,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
        PERIPH_CLK("i2c3",      "tegra-i2c.2",          NULL,   67,     0x1b8,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
        PERIPH_CLK("i2c4",      "tegra-i2c.3",          NULL,   103,    0x3c4,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
        PERIPH_CLK("i2c5",      "tegra-i2c.4",          NULL,   47,     0x128,  26000000,  mux_pllp_clkm,               MUX | DIV_U16 | PERIPH_ON_APB),
        PERIPH_CLK("uarta",     "tegra_uart.0",         NULL,   6,      0x178,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uartb",     "tegra_uart.1",         NULL,   7,      0x17c,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uartc",     "tegra_uart.2",         NULL,   55,     0x1a0,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uartd",     "tegra_uart.3",         NULL,   65,     0x1c0,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uarte",     "tegra_uart.4",         NULL,   66,     0x1c4,  800000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uarta_dbg", "serial8250.0",         "uarta",6,      0x178,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uartb_dbg", "serial8250.0",         "uartb",7,      0x17c,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uartc_dbg", "serial8250.0",         "uartc",55,     0x1a0,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uartd_dbg", "serial8250.0",         "uartd",65,     0x1c0,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("uarte_dbg", "serial8250.0",         "uarte",66,     0x1c4,  800000000, mux_pllp_clkm,               MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB),
        PERIPH_CLK("3d",        "3d",                   NULL,   24,     0x158,  520000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT | PERIPH_MANUAL_RESET),
        PERIPH_CLK("3d2",       "3d2",                  NULL,   98,     0x3b0,  520000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT | PERIPH_MANUAL_RESET),
        PERIPH_CLK("2d",        "2d",                   NULL,   21,     0x15c,  520000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT),
        PERIPH_CLK_EX("vi",     "tegra_camera",         "vi",   20,     0x148,  425000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT,    &tegra_vi_clk_ops),
        PERIPH_CLK("vi_sensor", "tegra_camera",         "vi_sensor",    20,     0x1a8,  150000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | PERIPH_NO_RESET),
        PERIPH_CLK("epp",       "epp",                  NULL,   19,     0x16c,  520000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT),
        PERIPH_CLK("mpe",       "mpe",                  NULL,   60,     0x170,  520000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT),
        PERIPH_CLK("host1x",    "host1x",               NULL,   28,     0x180,  260000000, mux_pllm_pllc_pllp_plla,     MUX | DIV_U71 | DIV_U71_INT),
        PERIPH_CLK("cve",       "cve",                  NULL,   49,     0x140,  250000000, mux_pllp_plld_pllc_clkm,     MUX | DIV_U71), /* requires min voltage */
        PERIPH_CLK("tvo",       "tvo",                  NULL,   49,     0x188,  250000000, mux_pllp_plld_pllc_clkm,     MUX | DIV_U71), /* requires min voltage */
        PERIPH_CLK_EX("dtv",    "dtv",                  NULL,   79,     0x1dc,  250000000, mux_clk_m,                   0,              &tegra_dtv_clk_ops),
        PERIPH_CLK("hdmi",      "hdmi",                 NULL,   51,     0x18c,  148500000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm,     MUX | MUX8 | DIV_U71),
        PERIPH_CLK("tvdac",     "tvdac",                NULL,   53,     0x194,  220000000, mux_pllp_plld_pllc_clkm,     MUX | DIV_U71), /* requires min voltage */
        PERIPH_CLK("disp1",     "tegradc.0",            NULL,   27,     0x138,  600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm,     MUX | MUX8),
        PERIPH_CLK("disp2",     "tegradc.1",            NULL,   26,     0x13c,  600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm,     MUX | MUX8),
        PERIPH_CLK("usbd",      "fsl-tegra-udc",        NULL,   22,     0,      480000000, mux_clk_m,                   0), /* requires min voltage */
        PERIPH_CLK("usb2",      "tegra-ehci.1",         NULL,   58,     0,      480000000, mux_clk_m,                   0), /* requires min voltage */
        PERIPH_CLK("usb3",      "tegra-ehci.2",         NULL,   59,     0,      480000000, mux_clk_m,                   0), /* requires min voltage */
        PERIPH_CLK("dsia",      "tegradc.0",            "dsia", 48,     0,      500000000, mux_plld_out0,               0),
        PERIPH_CLK_EX("dsib",   "tegradc.1",            "dsib", 82,     0xd0,   500000000, mux_plld_out0_plld2_out0,    MUX | PLLD,     &tegra_dsib_clk_ops),
        PERIPH_CLK("csi",       "tegra_camera",         "csi",  52,     0,      102000000, mux_pllp_out3,               0),
        PERIPH_CLK("isp",       "tegra_camera",         "isp",  23,     0,      150000000, mux_clk_m,                   0), /* same frequency as VI */
        PERIPH_CLK("csus",      "tegra_camera",         "csus", 92,     0,      150000000, mux_clk_m,                   PERIPH_NO_RESET),

        PERIPH_CLK("tsensor",   "tegra-tsensor",        NULL,   100,    0x3b8,  216000000, mux_pllp_pllc_clkm_clk32,    MUX | DIV_U71),
        PERIPH_CLK("actmon",    "actmon",               NULL,   119,    0x3e8,  216000000, mux_pllp_pllc_clk32_clkm,    MUX | DIV_U71),
        PERIPH_CLK("extern1",   "extern1",              NULL,   120,    0x3ec,  216000000, mux_plla_clk32_pllp_clkm_plle,       MUX | MUX8 | DIV_U71),
        PERIPH_CLK("extern2",   "extern2",              NULL,   121,    0x3f0,  216000000, mux_plla_clk32_pllp_clkm_plle,       MUX | MUX8 | DIV_U71),
        PERIPH_CLK("extern3",   "extern3",              NULL,   122,    0x3f4,  216000000, mux_plla_clk32_pllp_clkm_plle,       MUX | MUX8 | DIV_U71),
        PERIPH_CLK("i2cslow",   "i2cslow",              NULL,   81,     0x3fc,  26000000,  mux_pllp_pllc_clk32_clkm,    MUX | DIV_U71 | PERIPH_ON_APB),
        PERIPH_CLK("pcie",      "tegra-pcie",           "pcie", 70,     0,      250000000, mux_clk_m,                   0),
        PERIPH_CLK("afi",       "tegra-pcie",           "afi",  72,     0,      250000000, mux_clk_m,                   0),
        PERIPH_CLK("se",        "se",                   NULL,   127,    0x42c,  520000000, mux_pllp_pllc_pllm_clkm,     MUX | DIV_U71| DIV_U71_INT),

        SHARED_CLK("avp.sclk",  "tegra-avp",            "sclk", &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("avp.sclk",  "nvavp",                "sclk", &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("bsea.sclk", "tegra-aes",            "sclk", &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("usbd.sclk", "fsl-tegra-udc",        "sclk", &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("usb1.sclk", "tegra-ehci.0",         "sclk", &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("usb2.sclk", "tegra-ehci.1",         "sclk", &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("usb3.sclk", "tegra-ehci.2",         "sclk", &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("mon.avp",   "tegra_actmon",         "avp",  &tegra_clk_sbus_cmplx, NULL, 0, 0),
        SHARED_CLK("cap.sclk",  "cap_sclk",             NULL,   &tegra_clk_sbus_cmplx, NULL, 0, SHARED_CEILING),

        SHARED_CLK("avp.emc",   "tegra-avp",            "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("avp.emc",   "nvavp",                "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("cpu.emc",   "cpu",                  "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("disp1.emc", "tegradc.0",            "emc",  &tegra_clk_emc, NULL, 0, SHARED_BW),
        SHARED_CLK("disp2.emc", "tegradc.1",            "emc",  &tegra_clk_emc, NULL, 0, SHARED_BW),
        SHARED_CLK("hdmi.emc",  "hdmi",                 "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("usbd.emc",  "fsl-tegra-udc",        "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("usb1.emc",  "tegra-ehci.0",         "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("usb2.emc",  "tegra-ehci.1",         "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("usb3.emc",  "tegra-ehci.2",         "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("mon.emc",   "tegra_actmon",         "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("cap.emc",   "cap.emc",              NULL,   &tegra_clk_emc, NULL, 0, SHARED_CEILING),
        SHARED_CLK("3d.emc",    "tegra_gr3d",           "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("2d.emc",    "tegra_gr2d",           "emc",  &tegra_clk_emc, NULL, 0, 0),
        SHARED_CLK("mpe.emc",   "tegra_mpe",            "emc",  &tegra_clk_emc, NULL, 0, 0),

        SHARED_CLK("host1x.cbus", "tegra_host1x",       "host1x", &tegra_clk_cbus, "host1x", 2, 0),
        SHARED_CLK("3d.cbus",   "tegra_gr3d",           "gr3d", &tegra_clk_cbus, "3d",  0, 0),
        SHARED_CLK("3d2.cbus",  "tegra_gr3d",           "gr3d2", &tegra_clk_cbus, "3d2", 0, 0),
        SHARED_CLK("2d.cbus",   "tegra_gr2d",           "gr2d", &tegra_clk_cbus, "2d",  0, 0),
        SHARED_CLK("epp.cbus",  "tegra_gr2d",           "epp",  &tegra_clk_cbus, "epp", 0, 0),
        SHARED_CLK("mpe.cbus",  "tegra_mpe",            "mpe",  &tegra_clk_cbus, "mpe", 0, 0),
        SHARED_CLK("vde.cbus",  "tegra-avp",            "vde",  &tegra_clk_cbus, "vde", 0, 0),
        SHARED_CLK("vde.cbus",  "nvavp",                "vde",  &tegra_clk_cbus, "vde", 0, 0),
        SHARED_CLK("se.cbus",   "tegra-se",             NULL,   &tegra_clk_cbus, "se",  0, 0),
        SHARED_CLK("cap.cbus",  "cap.cbus",             NULL,   &tegra_clk_cbus, NULL,  0, SHARED_CEILING),
};

#define CLK_DUPLICATE(_name, _dev, _con)                \
        {                                               \
                .name   = _name,                        \
                .lookup = {                             \
                        .dev_id = _dev,                 \
                        .con_id         = _con,         \
                },                                      \
        }

/* Some clocks may be used by different drivers depending on the board
 * configuration.  List those here to register them twice in the clock lookup
 * table under two names.
 */
struct clk_duplicate tegra_clk_duplicates[] = {
        CLK_DUPLICATE("usbd", "utmip-pad", NULL),
        CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
        CLK_DUPLICATE("usbd", "tegra-otg", NULL),
        CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"),
        CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"),
        CLK_DUPLICATE("dsib", "tegradc.0", "dsib"),
        CLK_DUPLICATE("dsia", "tegradc.1", "dsia"),
        CLK_DUPLICATE("pwm", "tegra_pwm.0", NULL),
        CLK_DUPLICATE("pwm", "tegra_pwm.1", NULL),
        CLK_DUPLICATE("pwm", "tegra_pwm.2", NULL),
        CLK_DUPLICATE("pwm", "tegra_pwm.3", NULL),
        CLK_DUPLICATE("cop", "tegra-avp", "cop"),
        CLK_DUPLICATE("bsev", "tegra-avp", "bsev"),
        CLK_DUPLICATE("cop", "nvavp", "cop"),
        CLK_DUPLICATE("bsev", "nvavp", "bsev"),
        CLK_DUPLICATE("vde", "tegra-aes", "vde"),
        CLK_DUPLICATE("bsea", "tegra-aes", "bsea"),
        CLK_DUPLICATE("cml1", "tegra_sata_cml", NULL),
        CLK_DUPLICATE("cml0", "tegra_pcie", "cml"),
        CLK_DUPLICATE("pciex", "tegra_pcie", "pciex"),
        CLK_DUPLICATE("i2c1", "tegra-i2c-slave.0", NULL),
        CLK_DUPLICATE("i2c2", "tegra-i2c-slave.1", NULL),
        CLK_DUPLICATE("i2c3", "tegra-i2c-slave.2", NULL),
        CLK_DUPLICATE("i2c4", "tegra-i2c-slave.3", NULL),
        CLK_DUPLICATE("i2c5", "tegra-i2c-slave.4", NULL),
        CLK_DUPLICATE("sbc1", "spi_slave_tegra.0", NULL),
        CLK_DUPLICATE("sbc2", "spi_slave_tegra.1", NULL),
        CLK_DUPLICATE("sbc3", "spi_slave_tegra.2", NULL),
        CLK_DUPLICATE("sbc4", "spi_slave_tegra.3", NULL),
        CLK_DUPLICATE("sbc5", "spi_slave_tegra.4", NULL),
        CLK_DUPLICATE("sbc6", "spi_slave_tegra.5", NULL),
        CLK_DUPLICATE("twd", "smp_twd", NULL),
};

struct clk *tegra_ptr_clks[] = {
        &tegra_clk_32k,
        &tegra_clk_m,
        &tegra_clk_m_div2,
        &tegra_clk_m_div4,
        &tegra_pll_ref,
        &tegra_pll_m,
        &tegra_pll_m_out1,
        &tegra_pll_c,
        &tegra_pll_c_out1,
        &tegra_pll_p,
        &tegra_pll_p_out1,
        &tegra_pll_p_out2,
        &tegra_pll_p_out3,
        &tegra_pll_p_out4,
        &tegra_pll_a,
        &tegra_pll_a_out0,
        &tegra_pll_d,
        &tegra_pll_d_out0,
        &tegra_pll_d2,
        &tegra_pll_d2_out0,
        &tegra_pll_u,
        &tegra_pll_x,
        &tegra_pll_x_out0,
        &tegra_pll_e,
        &tegra_cml0_clk,
        &tegra_cml1_clk,
        &tegra_pciex_clk,
        &tegra_clk_cclk_g,
        &tegra_clk_cclk_lp,
        &tegra_clk_sclk,
        &tegra_clk_hclk,
        &tegra_clk_pclk,
        &tegra_clk_virtual_cpu_g,
        &tegra_clk_virtual_cpu_lp,
        &tegra_clk_cpu_cmplx,
        &tegra_clk_blink,
        &tegra_clk_cop,
        &tegra_clk_sbus_cmplx,
        &tegra_clk_emc,
        &tegra3_clk_twd,
        &tegra_clk_emc_bridge,
        &tegra_clk_cbus,
};


static void tegra3_init_one_clock(struct clk *c)
{
        clk_init(c);
        INIT_LIST_HEAD(&c->shared_bus_list);
        if (!c->lookup.dev_id && !c->lookup.con_id)
                c->lookup.con_id = c->name;
        c->lookup.clk = c;
        clkdev_add(&c->lookup);
}

#ifdef CONFIG_CPU_FREQ

/*
 * Frequency table index must be sequential starting at 0 and frequencies
 * must be ascending.
 */

static struct cpufreq_frequency_table freq_table_300MHz[] = {
        { 0, 204000 },
        { 1, 300000 },
        { 2, CPUFREQ_TABLE_END },
};

static struct cpufreq_frequency_table freq_table_1p0GHz[] = {
        { 0, 102000 },
        { 1, 204000 },
        { 2, 312000 },
        { 3, 456000 },
        { 4, 608000 },
        { 5, 760000 },
        { 6, 816000 },
        { 7, 912000 },
        { 8, 1000000 },
        { 9, CPUFREQ_TABLE_END },
};

static struct cpufreq_frequency_table freq_table_1p3GHz[] = {
        { 0,  102000 },
        { 1,  204000 },
        { 2,  340000 },
        { 3,  475000 },
        { 4,  640000 },
        { 5,  760000 },
        { 6,  880000 },
        { 7, 1000000 },
        { 8, 1100000 },
        { 9, 1200000 },
        {10, 1300000 },
        {11, CPUFREQ_TABLE_END },
};

static struct cpufreq_frequency_table freq_table_1p4GHz[] = {
        { 0,  102000 },
        { 1,  204000 },
        { 2,  370000 },
        { 3,  475000 },
        { 4,  620000 },
        { 5,  760000 },
        { 6,  880000 },
        { 7, 1000000 },
        { 8, 1100000 },
        { 9, 1200000 },
        {10, 1300000 },
        {11, 1400000 },
        {12, CPUFREQ_TABLE_END },
};

static struct tegra_cpufreq_table_data cpufreq_tables[] = {
        { freq_table_300MHz, 0, 1 },
        { freq_table_1p0GHz, 2, 7, 2},
        { freq_table_1p3GHz, 2, 9, 2},
        { freq_table_1p4GHz, 2, 10, 2},
};

static int clip_cpu_rate_limits(
        struct cpufreq_frequency_table *freq_table,
        struct cpufreq_policy *policy,
        struct clk *cpu_clk_g,
        struct clk *cpu_clk_lp)
{
        int idx, ret;

        /* clip CPU G mode maximum frequency to table entry */
        ret = cpufreq_frequency_table_target(policy, freq_table,
                cpu_clk_g->max_rate / 1000, CPUFREQ_RELATION_H, &idx);
        if (ret) {
                pr_err("%s: G CPU max rate %lu outside of cpufreq table",
                       __func__, cpu_clk_g->max_rate);
                return ret;
        }
        cpu_clk_g->max_rate = freq_table[idx].frequency * 1000;
        if (cpu_clk_g->max_rate < cpu_clk_lp->max_rate) {
                pr_err("%s: G CPU max rate %lu is below LP CPU max rate %lu",
                       __func__, cpu_clk_g->max_rate, cpu_clk_lp->max_rate);
                return -EINVAL;
        }

        /* clip CPU LP mode maximum frequency to table entry, and
           set CPU G mode minimum frequency one table step below */
        ret = cpufreq_frequency_table_target(policy, freq_table,
                cpu_clk_lp->max_rate / 1000, CPUFREQ_RELATION_H, &idx);
        if (ret || !idx) {
                pr_err("%s: LP CPU max rate %lu %s of cpufreq table", __func__,
                       cpu_clk_lp->max_rate, ret ? "outside" : "at the bottom");
                return ret;
        }
        cpu_clk_lp->max_rate = freq_table[idx].frequency * 1000;
        cpu_clk_g->min_rate = freq_table[idx-1].frequency * 1000;
        return 0;
}

struct tegra_cpufreq_table_data *tegra_cpufreq_table_get(void)
{
        int i, ret;
        unsigned long selection_rate;
        struct clk *cpu_clk_g = tegra_get_clock_by_name("cpu_g");
        struct clk *cpu_clk_lp = tegra_get_clock_by_name("cpu_lp");

        /* For table selection use top cpu_g rate in dvfs ladder; selection
           rate may exceed cpu max_rate (e.g., because of edp limitations on
           cpu voltage) - in any case max_rate will be clipped to the table */
        if (cpu_clk_g->dvfs && cpu_clk_g->dvfs->num_freqs)
                selection_rate =
                        cpu_clk_g->dvfs->freqs[cpu_clk_g->dvfs->num_freqs - 1];
        else
                selection_rate = cpu_clk_g->max_rate;

        for (i = 0; i < ARRAY_SIZE(cpufreq_tables); i++) {
                struct cpufreq_policy policy;
                policy.cpu = 0; /* any on-line cpu */
                ret = cpufreq_frequency_table_cpuinfo(
                        &policy, cpufreq_tables[i].freq_table);
                if (!ret) {
                        if ((policy.max * 1000) == selection_rate) {
                                ret = clip_cpu_rate_limits(
                                        cpufreq_tables[i].freq_table,
                                        &policy, cpu_clk_g, cpu_clk_lp);
                                if (!ret)
                                        return &cpufreq_tables[i];
                        }
                }
        }
        WARN(1, "%s: No cpufreq table matching G & LP cpu ranges", __func__);
        return NULL;
}

unsigned long tegra_emc_to_cpu_ratio(unsigned long cpu_rate)
{
        static unsigned long emc_max_rate = 0;

        if (emc_max_rate == 0)
                emc_max_rate = clk_round_rate(
                        tegra_get_clock_by_name("emc"), ULONG_MAX);

        /* Vote on memory bus frequency based on cpu frequency;
           cpu rate is in kHz, emc rate is in Hz */
        if (cpu_rate >= 750000)
                return emc_max_rate;    /* cpu >= 750 MHz, emc max */
        else if (cpu_rate >= 450000)
                return emc_max_rate/2;  /* cpu >= 500 MHz, emc max/2 */
        else if (cpu_rate >= 250000)
                return 100000000;       /* cpu >= 250 MHz, emc 100 MHz */
        else
                return 0;               /* emc min */
}
#endif

#ifdef CONFIG_PM_SLEEP
static u32 clk_rst_suspend[RST_DEVICES_NUM + CLK_OUT_ENB_NUM +
                           PERIPH_CLK_SOURCE_NUM + 22];

static int tegra_clk_suspend(void)
{
        unsigned long off;
        u32 *ctx = clk_rst_suspend;

        *ctx++ = clk_readl(OSC_CTRL) & OSC_CTRL_MASK;
        *ctx++ = clk_readl(CPU_SOFTRST_CTRL);
        *ctx++ = clk_readl(tegra_pll_c.reg + PLL_BASE);
        *ctx++ = clk_readl(tegra_pll_c.reg + PLL_MISC(&tegra_pll_c));
        *ctx++ = clk_readl(tegra_pll_a.reg + PLL_BASE);
        *ctx++ = clk_readl(tegra_pll_a.reg + PLL_MISC(&tegra_pll_a));
        *ctx++ = clk_readl(tegra_pll_d.reg + PLL_BASE);
        *ctx++ = clk_readl(tegra_pll_d.reg + PLL_MISC(&tegra_pll_d));
        *ctx++ = clk_readl(tegra_pll_d2.reg + PLL_BASE);
        *ctx++ = clk_readl(tegra_pll_d2.reg + PLL_MISC(&tegra_pll_d2));

        *ctx++ = clk_readl(tegra_pll_m_out1.reg);
        *ctx++ = clk_readl(tegra_pll_a_out0.reg);
        *ctx++ = clk_readl(tegra_pll_c_out1.reg);

        *ctx++ = clk_readl(tegra_clk_cclk_g.reg);
        *ctx++ = clk_readl(tegra_clk_cclk_g.reg + SUPER_CLK_DIVIDER);
        *ctx++ = clk_readl(tegra_clk_cclk_lp.reg);
        *ctx++ = clk_readl(tegra_clk_cclk_lp.reg + SUPER_CLK_DIVIDER);

        *ctx++ = clk_readl(tegra_clk_sclk.reg);
        *ctx++ = clk_readl(tegra_clk_sclk.reg + SUPER_CLK_DIVIDER);
        *ctx++ = clk_readl(tegra_clk_pclk.reg);

        for (off = PERIPH_CLK_SOURCE_I2S1; off <= PERIPH_CLK_SOURCE_OSC;
                        off += 4) {
                if (off == PERIPH_CLK_SOURCE_EMC)
                        continue;
                *ctx++ = clk_readl(off);
        }
        for (off = PERIPH_CLK_SOURCE_G3D2; off <= PERIPH_CLK_SOURCE_SE;
                        off+=4) {
                *ctx++ = clk_readl(off);
        }
        for (off = AUDIO_DLY_CLK; off <= AUDIO_SYNC_CLK_SPDIF; off+=4) {
                *ctx++ = clk_readl(off);
        }

        *ctx++ = clk_readl(RST_DEVICES_L);
        *ctx++ = clk_readl(RST_DEVICES_H);
        *ctx++ = clk_readl(RST_DEVICES_U);
        *ctx++ = clk_readl(RST_DEVICES_V);
        *ctx++ = clk_readl(RST_DEVICES_W);

        *ctx++ = clk_readl(CLK_OUT_ENB_L);
        *ctx++ = clk_readl(CLK_OUT_ENB_H);
        *ctx++ = clk_readl(CLK_OUT_ENB_U);
        *ctx++ = clk_readl(CLK_OUT_ENB_V);
        *ctx++ = clk_readl(CLK_OUT_ENB_W);

        *ctx++ = clk_readl(MISC_CLK_ENB);
        *ctx++ = clk_readl(CLK_MASK_ARM);

        return 0;
}

static void tegra_clk_resume(void)
{
        unsigned long off;
        const u32 *ctx = clk_rst_suspend;
        u32 val;
        u32 pllc_base;
        u32 plla_base;
        u32 plld_base;
        u32 plld2_base;
        struct clk *p;

        val = clk_readl(OSC_CTRL) & ~OSC_CTRL_MASK;
        val |= *ctx++;
        clk_writel(val, OSC_CTRL);
        clk_writel(*ctx++, CPU_SOFTRST_CTRL);

        /* Since we are going to reset devices in this function, pllc/a is
         * required to be enabled. The actual value will be restore back later.
         */
        pllc_base = *ctx++;
        clk_writel(pllc_base | PLL_BASE_ENABLE, tegra_pll_c.reg + PLL_BASE);
        clk_writel(*ctx++, tegra_pll_c.reg + PLL_MISC(&tegra_pll_c));

        plla_base = *ctx++;
        clk_writel(plla_base | PLL_BASE_ENABLE, tegra_pll_a.reg + PLL_BASE);
        clk_writel(*ctx++, tegra_pll_a.reg + PLL_MISC(&tegra_pll_a));

        plld_base = *ctx++;
        clk_writel(plld_base | PLL_BASE_ENABLE, tegra_pll_d.reg + PLL_BASE);
        clk_writel(*ctx++, tegra_pll_d.reg + PLL_MISC(&tegra_pll_d));

        plld2_base = *ctx++;
        clk_writel(plld2_base | PLL_BASE_ENABLE, tegra_pll_d2.reg + PLL_BASE);
        clk_writel(*ctx++, tegra_pll_d2.reg + PLL_MISC(&tegra_pll_d2));

        udelay(1000);

        clk_writel(*ctx++, tegra_pll_m_out1.reg);
        clk_writel(*ctx++, tegra_pll_a_out0.reg);
        clk_writel(*ctx++, tegra_pll_c_out1.reg);

        clk_writel(*ctx++, tegra_clk_cclk_g.reg);
        clk_writel(*ctx++, tegra_clk_cclk_g.reg + SUPER_CLK_DIVIDER);
        clk_writel(*ctx++, tegra_clk_cclk_lp.reg);
        clk_writel(*ctx++, tegra_clk_cclk_lp.reg + SUPER_CLK_DIVIDER);

        clk_writel(*ctx++, tegra_clk_sclk.reg);
        clk_writel(*ctx++, tegra_clk_sclk.reg + SUPER_CLK_DIVIDER);
        clk_writel(*ctx++, tegra_clk_pclk.reg);

        /* enable all clocks before configuring clock sources */
        clk_writel(0xfdfffff1ul, CLK_OUT_ENB_L);
        clk_writel(0xfefff7f7ul, CLK_OUT_ENB_H);
        clk_writel(0x75f79bfful, CLK_OUT_ENB_U);
        clk_writel(0xfffffffful, CLK_OUT_ENB_V);
        clk_writel(0x00003ffful, CLK_OUT_ENB_W);
        wmb();

        for (off = PERIPH_CLK_SOURCE_I2S1; off <= PERIPH_CLK_SOURCE_OSC;
                        off += 4) {
                if (off == PERIPH_CLK_SOURCE_EMC)
                        continue;
                clk_writel(*ctx++, off);
        }
        for (off = PERIPH_CLK_SOURCE_G3D2; off <= PERIPH_CLK_SOURCE_SE;
                        off += 4) {
                clk_writel(*ctx++, off);
        }
        for (off = AUDIO_DLY_CLK; off <= AUDIO_SYNC_CLK_SPDIF; off+=4) {
                clk_writel(*ctx++, off);
        }
        wmb();

        clk_writel(*ctx++, RST_DEVICES_L);
        clk_writel(*ctx++, RST_DEVICES_H);
        clk_writel(*ctx++, RST_DEVICES_U);

        /* For LP0 resume, don't reset lpcpu, since we are running from it */
        val = *ctx++;
        val &= ~RST_DEVICES_V_SWR_CPULP_RST_DIS;
        clk_writel(val, RST_DEVICES_V);

        clk_writel(*ctx++, RST_DEVICES_W);
        wmb();

        clk_writel(*ctx++, CLK_OUT_ENB_L);
        clk_writel(*ctx++, CLK_OUT_ENB_H);
        clk_writel(*ctx++, CLK_OUT_ENB_U);

        /* For LP0 resume, clk to lpcpu is required to be on */
        val = *ctx++;
        val |= CLK_OUT_ENB_V_CLK_ENB_CPULP_EN;
        clk_writel(val, CLK_OUT_ENB_V);

        clk_writel(*ctx++, CLK_OUT_ENB_W);
        wmb();

        clk_writel(*ctx++, MISC_CLK_ENB);
        clk_writel(*ctx++, CLK_MASK_ARM);

        /* Restore back the actual pllc/a value */
        /* FIXME: need to root cause why pllc is required to be on
         * clk_writel(pllc_base, tegra_pll_c.reg + PLL_BASE);
         */
        clk_writel(plla_base, tegra_pll_a.reg + PLL_BASE);
        clk_writel(plld_base, tegra_pll_d.reg + PLL_BASE);
        clk_writel(plld2_base, tegra_pll_d2.reg + PLL_BASE);

        /* Since EMC clock is not restored, and may not preserve parent across
           suspend, update current state, and mark EMC DFS as out of sync */
        p = tegra_clk_emc.parent;
        tegra3_periph_clk_init(&tegra_clk_emc);

        if (p != tegra_clk_emc.parent) {
                /* FIXME: old parent is left enabled here even if EMC was its
                   only child before suspend (never happens on Tegra3) */
                pr_debug("EMC parent(refcount) across suspend: %s(%d) : %s(%d)",
                        p->name, p->refcnt, tegra_clk_emc.parent->name,
                        tegra_clk_emc.parent->refcnt);

                BUG_ON(!p->refcnt);
                p->refcnt--;

                /* the new parent is enabled by low level code, but ref count
                   need to be updated up to the root */
                p = tegra_clk_emc.parent;
                while (p && ((p->refcnt++) == 0))
                        p = p->parent;
        }
        tegra_emc_timing_invalidate();

        tegra3_pll_clk_init(&tegra_pll_u); /* Re-init utmi parameters */
        tegra3_pll_clk_init(&tegra_pll_p); /* Fire a bug if not restored */
}
#else
#define tegra_clk_suspend NULL
#define tegra_clk_resume NULL
#endif

static struct syscore_ops tegra_clk_syscore_ops = {
        .suspend = tegra_clk_suspend,
        .resume = tegra_clk_resume,
};

void __init tegra_soc_init_clocks(void)
{
        int i;
        struct clk *c;

        for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++)
                tegra3_init_one_clock(tegra_ptr_clks[i]);

        for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++)
                tegra3_init_one_clock(&tegra_list_clks[i]);

        for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) {
                c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name);
                if (!c) {
                        pr_err("%s: Unknown duplicate clock %s\n", __func__,
                                tegra_clk_duplicates[i].name);
                        continue;
                }

                tegra_clk_duplicates[i].lookup.clk = c;
                clkdev_add(&tegra_clk_duplicates[i].lookup);
        }

        for (i = 0; i < ARRAY_SIZE(tegra_sync_source_list); i++)
                tegra3_init_one_clock(&tegra_sync_source_list[i]);
        for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_list); i++)
                tegra3_init_one_clock(&tegra_clk_audio_list[i]);
        for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_2x_list); i++)
                tegra3_init_one_clock(&tegra_clk_audio_2x_list[i]);

        init_clk_out_mux();
        for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++)
                tegra3_init_one_clock(&tegra_clk_out_list[i]);

        emc_bridge = &tegra_clk_emc_bridge;

        /* Initialize to default */
        tegra_init_cpu_edp_limits(0);

        register_syscore_ops(&tegra_clk_syscore_ops);
}