drivers/clk/uniphier/clk-uniphier-sys.c

/*
 * Copyright (C) 2016 Socionext Inc.
 *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 */

#include <linux/stddef.h>

#include "clk-uniphier.h"

#define UNIPHIER_LD4_SYS_CLK_SD					\
	UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 8),		\
	UNIPHIER_CLK_FACTOR("sd-133m", -1, "vpll27a", 1, 2)

#define UNIPHIER_PRO5_SYS_CLK_SD					\
	UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 12),		\
	UNIPHIER_CLK_FACTOR("sd-133m", -1, "spll", 1, 18)

#define UNIPHIER_LD20_SYS_CLK_SD					\
	UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 10),		\
	UNIPHIER_CLK_FACTOR("sd-133m", -1, "spll", 1, 15)

/* Denali driver requires clk_x rate (clk: 50MHz, clk_x & ecc_clk: 200MHz) */
#define UNIPHIER_LD4_SYS_CLK_NAND(idx)					\
	UNIPHIER_CLK_FACTOR("nand-200m", -1, "spll", 1, 8),		\
	UNIPHIER_CLK_GATE("nand", (idx), "nand-200m", 0x2104, 2)

#define UNIPHIER_PRO5_SYS_CLK_NAND(idx)					\
	UNIPHIER_CLK_FACTOR("nand-200m", -1, "spll", 1, 12),		\
	UNIPHIER_CLK_GATE("nand", (idx), "nand-200m", 0x2104, 2)

#define UNIPHIER_LD11_SYS_CLK_NAND(idx)					\
	UNIPHIER_CLK_FACTOR("nand-200m", -1, "spll", 1, 10),		\
	UNIPHIER_CLK_GATE("nand", (idx), "nand-200m", 0x210c, 0)

#define UNIPHIER_LD11_SYS_CLK_EMMC(idx)					\
	UNIPHIER_CLK_GATE("emmc", (idx), NULL, 0x210c, 2)

#define UNIPHIER_LD4_SYS_CLK_STDMAC(idx)				\
	UNIPHIER_CLK_GATE("stdmac", (idx), NULL, 0x2104, 10)

#define UNIPHIER_LD11_SYS_CLK_STDMAC(idx)				\
	UNIPHIER_CLK_GATE("stdmac", (idx), NULL, 0x210c, 8)

#define UNIPHIER_PRO4_SYS_CLK_GIO(idx)					\
	UNIPHIER_CLK_GATE("gio", (idx), NULL, 0x2104, 6)

#define UNIPHIER_PRO4_SYS_CLK_USB3(idx, ch)				\
	UNIPHIER_CLK_GATE("usb3" #ch, (idx), NULL, 0x2104, 16 + (ch))

const struct uniphier_clk_data uniphier_ld4_sys_clk_data[] = {
	UNIPHIER_CLK_FACTOR("spll", -1, "ref", 65, 1),		/* 1597.44 MHz */
	UNIPHIER_CLK_FACTOR("upll", -1, "ref", 6000, 512),	/* 288 MHz */
	UNIPHIER_CLK_FACTOR("a2pll", -1, "ref", 24, 1),		/* 589.824 MHz */
	UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 5625, 512),	/* 270 MHz */
	UNIPHIER_CLK_FACTOR("uart", 0, "a2pll", 1, 16),
	UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 16),
	UNIPHIER_LD4_SYS_CLK_NAND(2),
	UNIPHIER_LD4_SYS_CLK_SD,
	UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12),
	UNIPHIER_LD4_SYS_CLK_STDMAC(8),			/* Ether, HSC, MIO */
	{ /* sentinel */ }
};

const struct uniphier_clk_data uniphier_pro4_sys_clk_data[] = {
	UNIPHIER_CLK_FACTOR("spll", -1, "ref", 64, 1),		/* 1600 MHz */
	UNIPHIER_CLK_FACTOR("upll", -1, "ref", 288, 25),	/* 288 MHz */
	UNIPHIER_CLK_FACTOR("a2pll", -1, "upll", 256, 125),	/* 589.824 MHz */
	UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 270, 25),	/* 270 MHz */
	UNIPHIER_CLK_FACTOR("uart", 0, "a2pll", 1, 8),
	UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 32),
	UNIPHIER_LD4_SYS_CLK_NAND(2),
	UNIPHIER_LD4_SYS_CLK_SD,
	UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12),
	UNIPHIER_LD4_SYS_CLK_STDMAC(8),			/* HSC, MIO, RLE */
	UNIPHIER_PRO4_SYS_CLK_GIO(12),			/* Ether, SATA, USB3 */
	UNIPHIER_PRO4_SYS_CLK_USB3(14, 0),
	UNIPHIER_PRO4_SYS_CLK_USB3(15, 1),
	{ /* sentinel */ }
};

const struct uniphier_clk_data uniphier_sld8_sys_clk_data[] = {
	UNIPHIER_CLK_FACTOR("spll", -1, "ref", 64, 1),		/* 1600 MHz */
	UNIPHIER_CLK_FACTOR("upll", -1, "ref", 288, 25),	/* 288 MHz */
	UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 270, 25),	/* 270 MHz */
	UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 20),
	UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 16),
	UNIPHIER_LD4_SYS_CLK_NAND(2),
	UNIPHIER_LD4_SYS_CLK_SD,
	UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12),
	UNIPHIER_LD4_SYS_CLK_STDMAC(8),			/* Ether, HSC, MIO */
	{ /* sentinel */ }
};

const struct uniphier_clk_data uniphier_pro5_sys_clk_data[] = {
	UNIPHIER_CLK_FACTOR("spll", -1, "ref", 120, 1),		/* 2400 MHz */
	UNIPHIER_CLK_FACTOR("dapll1", -1, "ref", 128, 1),	/* 2560 MHz */
	UNIPHIER_CLK_FACTOR("dapll2", -1, "ref", 144, 125),	/* 2949.12 MHz */
	UNIPHIER_CLK_FACTOR("uart", 0, "dapll2", 1, 40),
	UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 48),
	UNIPHIER_PRO5_SYS_CLK_NAND(2),
	UNIPHIER_PRO5_SYS_CLK_SD,
	UNIPHIER_LD4_SYS_CLK_STDMAC(8),				/* HSC */
	UNIPHIER_PRO4_SYS_CLK_GIO(12),				/* PCIe, USB3 */
	UNIPHIER_PRO4_SYS_CLK_USB3(14, 0),
	UNIPHIER_PRO4_SYS_CLK_USB3(15, 1),
	{ /* sentinel */ }
};

const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[] = {
	UNIPHIER_CLK_FACTOR("spll", -1, "ref", 96, 1),		/* 2400 MHz */
	UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 27),
	UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 48),
	UNIPHIER_PRO5_SYS_CLK_NAND(2),
	UNIPHIER_PRO5_SYS_CLK_SD,
	UNIPHIER_LD4_SYS_CLK_STDMAC(8),				/* HSC, RLE */
	/* GIO is always clock-enabled: no function for 0x2104 bit6 */
	UNIPHIER_PRO4_SYS_CLK_USB3(14, 0),
	UNIPHIER_PRO4_SYS_CLK_USB3(15, 1),
	/* The document mentions 0x2104 bit 18, but not functional */
	UNIPHIER_CLK_GATE("usb30-phy", 16, NULL, 0x2104, 19),
	UNIPHIER_CLK_GATE("usb31-phy", 20, NULL, 0x2104, 20),
	{ /* sentinel */ }
};

const struct uniphier_clk_data uniphier_ld11_sys_clk_data[] = {
	UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 392, 5),		/* 1960 MHz */
	UNIPHIER_CLK_FACTOR("mpll", -1, "ref", 64, 1),		/* 1600 MHz */
	UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1),		/* 2000 MHz */
	UNIPHIER_CLK_FACTOR("vspll", -1, "ref", 80, 1),		/* 2000 MHz */
	UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34),
	UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40),
	UNIPHIER_LD11_SYS_CLK_NAND(2),
	UNIPHIER_LD11_SYS_CLK_EMMC(4),
	/* Index 5 reserved for eMMC PHY */
	UNIPHIER_LD11_SYS_CLK_STDMAC(8),			/* HSC, MIO */
	UNIPHIER_CLK_FACTOR("usb2", -1, "ref", 24, 25),
	/* CPU gears */
	UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8),
	UNIPHIER_CLK_DIV4("mpll", 2, 3, 4, 8),
	UNIPHIER_CLK_DIV3("spll", 3, 4, 8),
	/* Note: both gear1 and gear4 are spll/4.  This is not a bug. */
	UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8,
			     "cpll/2", "spll/4", "cpll/3", "spll/3",
			     "spll/4", "spll/8", "cpll/4", "cpll/8"),
	UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8,
			     "mpll/2", "spll/4", "mpll/3", "spll/3",
			     "spll/4", "spll/8", "mpll/4", "mpll/8"),
	{ /* sentinel */ }
};

const struct uniphier_clk_data uniphier_ld20_sys_clk_data[] = {
	UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 88, 1),		/* ARM: 2200 MHz */
	UNIPHIER_CLK_FACTOR("gppll", -1, "ref", 52, 1),		/* Mali: 1300 MHz */
	UNIPHIER_CLK_FACTOR("mpll", -1, "ref", 64, 1),		/* Codec: 1600 MHz */
	UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1),		/* 2000 MHz */
	UNIPHIER_CLK_FACTOR("s2pll", -1, "ref", 88, 1),		/* IPP: 2200 MHz */
	UNIPHIER_CLK_FACTOR("vppll", -1, "ref", 504, 5),	/* 2520 MHz */
	UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34),
	UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40),
	UNIPHIER_LD11_SYS_CLK_NAND(2),
	UNIPHIER_LD11_SYS_CLK_EMMC(4),
	/* Index 5 reserved for eMMC PHY */
	UNIPHIER_LD20_SYS_CLK_SD,
	UNIPHIER_LD11_SYS_CLK_STDMAC(8),			/* HSC */
	/* GIO is always clock-enabled: no function for 0x210c bit5 */
	/*
	 * clock for USB Link is enabled by the logic "OR" of bit 14 and bit 15.
	 * We do not use bit 15 here.
	 */
	UNIPHIER_CLK_GATE("usb30", 14, NULL, 0x210c, 14),
	UNIPHIER_CLK_GATE("usb30-phy0", 16, NULL, 0x210c, 12),
	UNIPHIER_CLK_GATE("usb30-phy1", 17, NULL, 0x210c, 13),
	/* CPU gears */
	UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8),
	UNIPHIER_CLK_DIV4("spll", 2, 3, 4, 8),
	UNIPHIER_CLK_DIV4("s2pll", 2, 3, 4, 8),
	UNIPHIER_CLK_CPUGEAR("cpu-ca72", 32, 0x8000, 0xf, 8,
			     "cpll/2", "spll/2", "cpll/3", "spll/3",
			     "spll/4", "spll/8", "cpll/4", "cpll/8"),
	UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8,
			     "cpll/2", "spll/2", "cpll/3", "spll/3",
			     "spll/4", "spll/8", "cpll/4", "cpll/8"),
	UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8,
			     "s2pll/2", "spll/2", "s2pll/3", "spll/3",
			     "spll/4", "spll/8", "s2pll/4", "s2pll/8"),
	{ /* sentinel */ }
};