OMAP2+: io: split omap2_init_common_hw()
[linux-3.10.git] / arch / arm / mach-omap2 / board-omap3logic.c
1 /*
2  * linux/arch/arm/mach-omap2/board-omap3logic.c
3  *
4  * Copyright (C) 2010 Li-Pro.Net
5  * Stephan Linz <linz@li-pro.net>
6  *
7  * Copyright (C) 2010 Logic Product Development, Inc.
8  * Peter Barada <peter.barada@logicpd.com>
9  *
10  * Modified from Beagle, EVM, and RX51
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License version 2 as
14  * published by the Free Software Foundation.
15  */
16
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/platform_device.h>
20 #include <linux/delay.h>
21 #include <linux/err.h>
22 #include <linux/clk.h>
23 #include <linux/io.h>
24 #include <linux/gpio.h>
25
26 #include <linux/regulator/machine.h>
27
28 #include <linux/i2c/twl.h>
29 #include <linux/mmc/host.h>
30
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35
36 #include "mux.h"
37 #include "hsmmc.h"
38 #include "timer-gp.h"
39 #include "control.h"
40
41 #include <plat/mux.h>
42 #include <plat/board.h>
43 #include <plat/common.h>
44 #include <plat/gpmc-smsc911x.h>
45 #include <plat/gpmc.h>
46 #include <plat/sdrc.h>
47
48 #define OMAP3LOGIC_SMSC911X_CS                  1
49
50 #define OMAP3530_LV_SOM_MMC_GPIO_CD             110
51 #define OMAP3530_LV_SOM_MMC_GPIO_WP             126
52 #define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ       152
53
54 #define OMAP3_TORPEDO_MMC_GPIO_CD               127
55 #define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ         129
56
57 static struct regulator_consumer_supply omap3logic_vmmc1_supply = {
58         .supply                 = "vmmc",
59 };
60
61 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
62 static struct regulator_init_data omap3logic_vmmc1 = {
63         .constraints = {
64                 .name                   = "VMMC1",
65                 .min_uV                 = 1850000,
66                 .max_uV                 = 3150000,
67                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
68                                         | REGULATOR_MODE_STANDBY,
69                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
70                                         | REGULATOR_CHANGE_MODE
71                                         | REGULATOR_CHANGE_STATUS,
72         },
73         .num_consumer_supplies  = 1,
74         .consumer_supplies      = &omap3logic_vmmc1_supply,
75 };
76
77 static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
78         .gpio_base      = OMAP_MAX_GPIO_LINES,
79         .irq_base       = TWL4030_GPIO_IRQ_BASE,
80         .irq_end        = TWL4030_GPIO_IRQ_END,
81         .use_leds       = true,
82         .pullups        = BIT(1),
83         .pulldowns      = BIT(2)  | BIT(6)  | BIT(7)  | BIT(8)
84                         | BIT(13) | BIT(15) | BIT(16) | BIT(17),
85 };
86
87 static struct twl4030_platform_data omap3logic_twldata = {
88         .irq_base       = TWL4030_IRQ_BASE,
89         .irq_end        = TWL4030_IRQ_END,
90
91         /* platform_data for children goes here */
92         .gpio           = &omap3logic_gpio_data,
93         .vmmc1          = &omap3logic_vmmc1,
94 };
95
96 static struct i2c_board_info __initdata omap3logic_i2c_boardinfo[] = {
97         {
98                 I2C_BOARD_INFO("twl4030", 0x48),
99                 .flags = I2C_CLIENT_WAKE,
100                 .irq = INT_34XX_SYS_NIRQ,
101                 .platform_data = &omap3logic_twldata,
102         },
103 };
104
105 static int __init omap3logic_i2c_init(void)
106 {
107         omap_register_i2c_bus(1, 2600, omap3logic_i2c_boardinfo,
108                                 ARRAY_SIZE(omap3logic_i2c_boardinfo));
109         return 0;
110 }
111
112 static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
113         {
114                 .name           = "external",
115                 .mmc            = 1,
116                 .caps           = MMC_CAP_4_BIT_DATA,
117                 .gpio_cd        = -EINVAL,
118                 .gpio_wp        = -EINVAL,
119         },
120         {}      /* Terminator */
121 };
122
123 static void __init board_mmc_init(void)
124 {
125         if (machine_is_omap3530_lv_som()) {
126                 /* OMAP3530 LV SOM board */
127                 board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
128                 board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
129                 omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
130                 omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
131         } else if (machine_is_omap3_torpedo()) {
132                 /* OMAP3 Torpedo board */
133                 board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
134                 omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
135         } else {
136                 /* unsupported board */
137                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
138                 return;
139         }
140
141         omap2_hsmmc_init(board_mmc_info);
142         /* link regulators to MMC adapters */
143         omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
144 }
145
146 static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
147         .cs             = OMAP3LOGIC_SMSC911X_CS,
148         .gpio_irq       = -EINVAL,
149         .gpio_reset     = -EINVAL,
150         .flags          = IORESOURCE_IRQ_LOWLEVEL,
151 };
152
153 /* TODO/FIXME (comment by Peter Barada, LogicPD):
154  * Fix the PBIAS voltage for Torpedo MMC1 pins that
155  * are used for other needs (IRQs, etc).            */
156 static void omap3torpedo_fix_pbias_voltage(void)
157 {
158         u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
159         u32 reg;
160
161         if (machine_is_omap3_torpedo())
162         {
163                 /* Set the bias for the pin */
164                 reg = omap_ctrl_readl(control_pbias_offset);
165
166                 reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
167                 omap_ctrl_writel(reg, control_pbias_offset);
168
169                 /* 100ms delay required for PBIAS configuration */
170                 msleep(100);
171
172                 reg |= OMAP343X_PBIASLITEVMODE1;
173                 reg |= OMAP343X_PBIASLITEPWRDNZ1;
174                 omap_ctrl_writel(reg | 0x300, control_pbias_offset);
175         }
176 }
177
178 static inline void __init board_smsc911x_init(void)
179 {
180         if (machine_is_omap3530_lv_som()) {
181                 /* OMAP3530 LV SOM board */
182                 board_smsc911x_data.gpio_irq =
183                                         OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
184                 omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
185         } else if (machine_is_omap3_torpedo()) {
186                 /* OMAP3 Torpedo board */
187                 board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
188                 omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
189         } else {
190                 /* unsupported board */
191                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
192                 return;
193         }
194
195         gpmc_smsc911x_init(&board_smsc911x_data);
196 }
197
198 static void __init omap3logic_init_irq(void)
199 {
200         omap2_init_common_infrastructure();
201         omap2_init_common_devices(NULL, NULL);
202         omap_init_irq();
203 }
204
205 #ifdef CONFIG_OMAP_MUX
206 static struct omap_board_mux board_mux[] __initdata = {
207         { .reg_offset = OMAP_MUX_TERMINATOR },
208 };
209 #endif
210
211 static void __init omap3logic_init(void)
212 {
213         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
214         omap3torpedo_fix_pbias_voltage();
215         omap3logic_i2c_init();
216         omap_serial_init();
217         board_mmc_init();
218         board_smsc911x_init();
219
220         /* Ensure SDRC pins are mux'd for self-refresh */
221         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
222         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
223 }
224
225 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
226         .boot_params    = 0x80000100,
227         .map_io         = omap3_map_io,
228         .init_irq       = omap3logic_init_irq,
229         .init_machine   = omap3logic_init,
230         .timer          = &omap_timer,
231 MACHINE_END
232
233 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
234         .boot_params    = 0x80000100,
235         .map_io         = omap3_map_io,
236         .init_irq       = omap3logic_init_irq,
237         .init_machine   = omap3logic_init,
238         .timer          = &omap_timer,
239 MACHINE_END