arch/arm/mach-exynos/mach-smdk4x12.c

   1 /*
   2  * linux/arch/arm/mach-exynos4/mach-smdk4x12.c
   3  *
   4  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   5  *              http://www.samsung.com
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10 */
  11
  12 #include <linux/gpio.h>
  13 #include <linux/i2c.h>
  14 #include <linux/input.h>
  15 #include <linux/io.h>
  16 #include <linux/mfd/max8997.h>
  17 #include <linux/mmc/host.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/pwm_backlight.h>
  20 #include <linux/regulator/machine.h>
  21 #include <linux/serial_core.h>
  22
  23 #include <asm/mach/arch.h>
  24 #include <asm/hardware/gic.h>
  25 #include <asm/mach-types.h>
  26
  27 #include <plat/backlight.h>
  28 #include <plat/clock.h>
  29 #include <plat/cpu.h>
  30 #include <plat/devs.h>
  31 #include <plat/gpio-cfg.h>
  32 #include <plat/iic.h>
  33 #include <plat/keypad.h>
  34 #include <plat/regs-serial.h>
  35 #include <plat/sdhci.h>
  36
  37 #include <mach/map.h>
  38
  39 #include "common.h"
  40
  41 /* Following are default values for UCON, ULCON and UFCON UART registers */
  42 #define SMDK4X12_UCON_DEFAULT   (S3C2410_UCON_TXILEVEL |        \
  43                                  S3C2410_UCON_RXILEVEL |        \
  44                                  S3C2410_UCON_TXIRQMODE |       \
  45                                  S3C2410_UCON_RXIRQMODE |       \
  46                                  S3C2410_UCON_RXFIFO_TOI |      \
  47                                  S3C2443_UCON_RXERR_IRQEN)
  48
  49 #define SMDK4X12_ULCON_DEFAULT  S3C2410_LCON_CS8
  50
  51 #define SMDK4X12_UFCON_DEFAULT  (S3C2410_UFCON_FIFOMODE |       \
  52                                  S5PV210_UFCON_TXTRIG4 |        \
  53                                  S5PV210_UFCON_RXTRIG4)
  54
  55 static struct s3c2410_uartcfg smdk4x12_uartcfgs[] __initdata = {
  56         [0] = {
  57                 .hwport         = 0,
  58                 .flags          = 0,
  59                 .ucon           = SMDK4X12_UCON_DEFAULT,
  60                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  61                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  62         },
  63         [1] = {
  64                 .hwport         = 1,
  65                 .flags          = 0,
  66                 .ucon           = SMDK4X12_UCON_DEFAULT,
  67                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  68                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  69         },
  70         [2] = {
  71                 .hwport         = 2,
  72                 .flags          = 0,
  73                 .ucon           = SMDK4X12_UCON_DEFAULT,
  74                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  75                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  76         },
  77         [3] = {
  78                 .hwport         = 3,
  79                 .flags          = 0,
  80                 .ucon           = SMDK4X12_UCON_DEFAULT,
  81                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  82                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  83         },
  84 };
  85
  86 static struct s3c_sdhci_platdata smdk4x12_hsmmc2_pdata __initdata = {
  87         .cd_type                = S3C_SDHCI_CD_INTERNAL,
  88         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
  89 #ifdef CONFIG_EXYNOS4_SDHCI_CH2_8BIT
  90         .max_width              = 8,
  91         .host_caps              = MMC_CAP_8_BIT_DATA,
  92 #endif
  93 };
  94
  95 static struct s3c_sdhci_platdata smdk4x12_hsmmc3_pdata __initdata = {
  96         .cd_type                = S3C_SDHCI_CD_INTERNAL,
  97         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
  98 };
  99
 100 static struct regulator_consumer_supply max8997_buck1 =
 101         REGULATOR_SUPPLY("vdd_arm", NULL);
 102
 103 static struct regulator_consumer_supply max8997_buck2 =
 104         REGULATOR_SUPPLY("vdd_int", NULL);
 105
 106 static struct regulator_consumer_supply max8997_buck3 =
 107         REGULATOR_SUPPLY("vdd_g3d", NULL);
 108
 109 static struct regulator_init_data max8997_buck1_data = {
 110         .constraints    = {
 111                 .name           = "VDD_ARM_SMDK4X12",
 112                 .min_uV         = 925000,
 113                 .max_uV         = 1350000,
 114                 .always_on      = 1,
 115                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 116                 .state_mem      = {
 117                         .disabled       = 1,
 118                 },
 119         },
 120         .num_consumer_supplies  = 1,
 121         .consumer_supplies      = &max8997_buck1,
 122 };
 123
 124 static struct regulator_init_data max8997_buck2_data = {
 125         .constraints    = {
 126                 .name           = "VDD_INT_SMDK4X12",
 127                 .min_uV         = 950000,
 128                 .max_uV         = 1150000,
 129                 .always_on      = 1,
 130                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 131                 .state_mem      = {
 132                         .disabled       = 1,
 133                 },
 134         },
 135         .num_consumer_supplies  = 1,
 136         .consumer_supplies      = &max8997_buck2,
 137 };
 138
 139 static struct regulator_init_data max8997_buck3_data = {
 140         .constraints    = {
 141                 .name           = "VDD_G3D_SMDK4X12",
 142                 .min_uV         = 950000,
 143                 .max_uV         = 1150000,
 144                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 145                                   REGULATOR_CHANGE_STATUS,
 146                 .state_mem      = {
 147                         .disabled       = 1,
 148                 },
 149         },
 150         .num_consumer_supplies  = 1,
 151         .consumer_supplies      = &max8997_buck3,
 152 };
 153
 154 static struct max8997_regulator_data smdk4x12_max8997_regulators[] = {
 155         { MAX8997_BUCK1, &max8997_buck1_data },
 156         { MAX8997_BUCK2, &max8997_buck2_data },
 157         { MAX8997_BUCK3, &max8997_buck3_data },
 158 };
 159
 160 static struct max8997_platform_data smdk4x12_max8997_pdata = {
 161         .num_regulators = ARRAY_SIZE(smdk4x12_max8997_regulators),
 162         .regulators     = smdk4x12_max8997_regulators,
 163
 164         .buck1_voltage[0] = 1100000,    /* 1.1V */
 165         .buck1_voltage[1] = 1100000,    /* 1.1V */
 166         .buck1_voltage[2] = 1100000,    /* 1.1V */
 167         .buck1_voltage[3] = 1100000,    /* 1.1V */
 168         .buck1_voltage[4] = 1100000,    /* 1.1V */
 169         .buck1_voltage[5] = 1100000,    /* 1.1V */
 170         .buck1_voltage[6] = 1000000,    /* 1.0V */
 171         .buck1_voltage[7] = 950000,     /* 0.95V */
 172
 173         .buck2_voltage[0] = 1100000,    /* 1.1V */
 174         .buck2_voltage[1] = 1000000,    /* 1.0V */
 175         .buck2_voltage[2] = 950000,     /* 0.95V */
 176         .buck2_voltage[3] = 900000,     /* 0.9V */
 177         .buck2_voltage[4] = 1100000,    /* 1.1V */
 178         .buck2_voltage[5] = 1000000,    /* 1.0V */
 179         .buck2_voltage[6] = 950000,     /* 0.95V */
 180         .buck2_voltage[7] = 900000,     /* 0.9V */
 181
 182         .buck5_voltage[0] = 1100000,    /* 1.1V */
 183         .buck5_voltage[1] = 1100000,    /* 1.1V */
 184         .buck5_voltage[2] = 1100000,    /* 1.1V */
 185         .buck5_voltage[3] = 1100000,    /* 1.1V */
 186         .buck5_voltage[4] = 1100000,    /* 1.1V */
 187         .buck5_voltage[5] = 1100000,    /* 1.1V */
 188         .buck5_voltage[6] = 1100000,    /* 1.1V */
 189         .buck5_voltage[7] = 1100000,    /* 1.1V */
 190 };
 191
 192 static struct i2c_board_info smdk4x12_i2c_devs0[] __initdata = {
 193         {
 194                 I2C_BOARD_INFO("max8997", 0x66),
 195                 .platform_data  = &smdk4x12_max8997_pdata,
 196         }
 197 };
 198
 199 static struct i2c_board_info smdk4x12_i2c_devs1[] __initdata = {
 200         { I2C_BOARD_INFO("wm8994", 0x1a), }
 201 };
 202
 203 static struct i2c_board_info smdk4x12_i2c_devs3[] __initdata = {
 204         /* nothing here yet */
 205 };
 206
 207 static struct i2c_board_info smdk4x12_i2c_devs7[] __initdata = {
 208         /* nothing here yet */
 209 };
 210
 211 static struct samsung_bl_gpio_info smdk4x12_bl_gpio_info = {
 212         .no = EXYNOS4_GPD0(1),
 213         .func = S3C_GPIO_SFN(2),
 214 };
 215
 216 static struct platform_pwm_backlight_data smdk4x12_bl_data = {
 217         .pwm_id = 1,
 218         .pwm_period_ns  = 1000,
 219 };
 220
 221 static uint32_t smdk4x12_keymap[] __initdata = {
 222         /* KEY(row, col, keycode) */
 223         KEY(1, 0, KEY_D), KEY(1, 1, KEY_A), KEY(1, 2, KEY_B),
 224         KEY(1, 3, KEY_E), KEY(1, 4, KEY_C)
 225 };
 226
 227 static struct matrix_keymap_data smdk4x12_keymap_data __initdata = {
 228         .keymap         = smdk4x12_keymap,
 229         .keymap_size    = ARRAY_SIZE(smdk4x12_keymap),
 230 };
 231
 232 static struct samsung_keypad_platdata smdk4x12_keypad_data __initdata = {
 233         .keymap_data    = &smdk4x12_keymap_data,
 234         .rows           = 2,
 235         .cols           = 5,
 236 };
 237
 238 static struct platform_device *smdk4x12_devices[] __initdata = {
 239         &s3c_device_hsmmc2,
 240         &s3c_device_hsmmc3,
 241         &s3c_device_i2c0,
 242         &s3c_device_i2c1,
 243         &s3c_device_i2c3,
 244         &s3c_device_i2c7,
 245         &s3c_device_rtc,
 246         &s3c_device_wdt,
 247         &samsung_device_keypad,
 248 };
 249
 250 static void __init smdk4x12_map_io(void)
 251 {
 252         clk_xusbxti.rate = 24000000;
 253
 254         exynos_init_io(NULL, 0);
 255         s3c24xx_init_clocks(clk_xusbxti.rate);
 256         s3c24xx_init_uarts(smdk4x12_uartcfgs, ARRAY_SIZE(smdk4x12_uartcfgs));
 257 }
 258
 259 static void __init smdk4x12_machine_init(void)
 260 {
 261         s3c_i2c0_set_platdata(NULL);
 262         i2c_register_board_info(0, smdk4x12_i2c_devs0,
 263                                 ARRAY_SIZE(smdk4x12_i2c_devs0));
 264
 265         s3c_i2c1_set_platdata(NULL);
 266         i2c_register_board_info(1, smdk4x12_i2c_devs1,
 267                                 ARRAY_SIZE(smdk4x12_i2c_devs1));
 268
 269         s3c_i2c3_set_platdata(NULL);
 270         i2c_register_board_info(3, smdk4x12_i2c_devs3,
 271                                 ARRAY_SIZE(smdk4x12_i2c_devs3));
 272
 273         s3c_i2c7_set_platdata(NULL);
 274         i2c_register_board_info(7, smdk4x12_i2c_devs7,
 275                                 ARRAY_SIZE(smdk4x12_i2c_devs7));
 276
 277         samsung_bl_set(&smdk4x12_bl_gpio_info, &smdk4x12_bl_data);
 278
 279         samsung_keypad_set_platdata(&smdk4x12_keypad_data);
 280
 281         s3c_sdhci2_set_platdata(&smdk4x12_hsmmc2_pdata);
 282         s3c_sdhci3_set_platdata(&smdk4x12_hsmmc3_pdata);
 283
 284         platform_add_devices(smdk4x12_devices, ARRAY_SIZE(smdk4x12_devices));
 285 }
 286
 287 MACHINE_START(SMDK4212, "SMDK4212")
 288         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
 289         .atag_offset    = 0x100,
 290         .init_irq       = exynos4_init_irq,
 291         .map_io         = smdk4x12_map_io,
 292         .handle_irq     = gic_handle_irq,
 293         .init_machine   = smdk4x12_machine_init,
 294         .timer          = &exynos4_timer,
 295         .restart        = exynos4_restart,
 296 MACHINE_END
 297
 298 MACHINE_START(SMDK4412, "SMDK4412")
 299         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
 300         /* Maintainer: Changhwan Youn <chaos.youn@samsung.com> */
 301         .atag_offset    = 0x100,
 302         .init_irq       = exynos4_init_irq,
 303         .map_io         = smdk4x12_map_io,
 304         .handle_irq     = gic_handle_irq,
 305         .init_machine   = smdk4x12_machine_init,
 306         .init_late      = exynos_init_late,
 307         .timer          = &exynos4_timer,
 308         .restart        = exynos4_restart,
 309 MACHINE_END