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/mach-types.h>
  25
  26 #include <plat/backlight.h>
  27 #include <plat/clock.h>
  28 #include <plat/cpu.h>
  29 #include <plat/devs.h>
  30 #include <plat/exynos4.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 /* Following are default values for UCON, ULCON and UFCON UART registers */
  40 #define SMDK4X12_UCON_DEFAULT   (S3C2410_UCON_TXILEVEL |        \
  41                                  S3C2410_UCON_RXILEVEL |        \
  42                                  S3C2410_UCON_TXIRQMODE |       \
  43                                  S3C2410_UCON_RXIRQMODE |       \
  44                                  S3C2410_UCON_RXFIFO_TOI |      \
  45                                  S3C2443_UCON_RXERR_IRQEN)
  46
  47 #define SMDK4X12_ULCON_DEFAULT  S3C2410_LCON_CS8
  48
  49 #define SMDK4X12_UFCON_DEFAULT  (S3C2410_UFCON_FIFOMODE |       \
  50                                  S5PV210_UFCON_TXTRIG4 |        \
  51                                  S5PV210_UFCON_RXTRIG4)
  52
  53 static struct s3c2410_uartcfg smdk4x12_uartcfgs[] __initdata = {
  54         [0] = {
  55                 .hwport         = 0,
  56                 .flags          = 0,
  57                 .ucon           = SMDK4X12_UCON_DEFAULT,
  58                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  59                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  60         },
  61         [1] = {
  62                 .hwport         = 1,
  63                 .flags          = 0,
  64                 .ucon           = SMDK4X12_UCON_DEFAULT,
  65                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  66                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  67         },
  68         [2] = {
  69                 .hwport         = 2,
  70                 .flags          = 0,
  71                 .ucon           = SMDK4X12_UCON_DEFAULT,
  72                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  73                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  74         },
  75         [3] = {
  76                 .hwport         = 3,
  77                 .flags          = 0,
  78                 .ucon           = SMDK4X12_UCON_DEFAULT,
  79                 .ulcon          = SMDK4X12_ULCON_DEFAULT,
  80                 .ufcon          = SMDK4X12_UFCON_DEFAULT,
  81         },
  82 };
  83
  84 static struct s3c_sdhci_platdata smdk4x12_hsmmc2_pdata __initdata = {
  85         .cd_type                = S3C_SDHCI_CD_INTERNAL,
  86         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
  87 #ifdef CONFIG_EXYNOS4_SDHCI_CH2_8BIT
  88         .max_width              = 8,
  89         .host_caps              = MMC_CAP_8_BIT_DATA,
  90 #endif
  91 };
  92
  93 static struct s3c_sdhci_platdata smdk4x12_hsmmc3_pdata __initdata = {
  94         .cd_type                = S3C_SDHCI_CD_INTERNAL,
  95         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
  96 };
  97
  98 static struct regulator_consumer_supply max8997_buck1 =
  99         REGULATOR_SUPPLY("vdd_arm", NULL);
 100
 101 static struct regulator_consumer_supply max8997_buck2 =
 102         REGULATOR_SUPPLY("vdd_int", NULL);
 103
 104 static struct regulator_consumer_supply max8997_buck3 =
 105         REGULATOR_SUPPLY("vdd_g3d", NULL);
 106
 107 static struct regulator_init_data max8997_buck1_data = {
 108         .constraints    = {
 109                 .name           = "VDD_ARM_SMDK4X12",
 110                 .min_uV         = 925000,
 111                 .max_uV         = 1350000,
 112                 .always_on      = 1,
 113                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 114                 .state_mem      = {
 115                         .disabled       = 1,
 116                 },
 117         },
 118         .num_consumer_supplies  = 1,
 119         .consumer_supplies      = &max8997_buck1,
 120 };
 121
 122 static struct regulator_init_data max8997_buck2_data = {
 123         .constraints    = {
 124                 .name           = "VDD_INT_SMDK4X12",
 125                 .min_uV         = 950000,
 126                 .max_uV         = 1150000,
 127                 .always_on      = 1,
 128                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 129                 .state_mem      = {
 130                         .disabled       = 1,
 131                 },
 132         },
 133         .num_consumer_supplies  = 1,
 134         .consumer_supplies      = &max8997_buck2,
 135 };
 136
 137 static struct regulator_init_data max8997_buck3_data = {
 138         .constraints    = {
 139                 .name           = "VDD_G3D_SMDK4X12",
 140                 .min_uV         = 950000,
 141                 .max_uV         = 1150000,
 142                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 143                                   REGULATOR_CHANGE_STATUS,
 144                 .state_mem      = {
 145                         .disabled       = 1,
 146                 },
 147         },
 148         .num_consumer_supplies  = 1,
 149         .consumer_supplies      = &max8997_buck3,
 150 };
 151
 152 static struct max8997_regulator_data smdk4x12_max8997_regulators[] = {
 153         { MAX8997_BUCK1, &max8997_buck1_data },
 154         { MAX8997_BUCK2, &max8997_buck2_data },
 155         { MAX8997_BUCK3, &max8997_buck3_data },
 156 };
 157
 158 static struct max8997_platform_data smdk4x12_max8997_pdata = {
 159         .num_regulators = ARRAY_SIZE(smdk4x12_max8997_regulators),
 160         .regulators     = smdk4x12_max8997_regulators,
 161
 162         .buck1_voltage[0] = 1100000,    /* 1.1V */
 163         .buck1_voltage[1] = 1100000,    /* 1.1V */
 164         .buck1_voltage[2] = 1100000,    /* 1.1V */
 165         .buck1_voltage[3] = 1100000,    /* 1.1V */
 166         .buck1_voltage[4] = 1100000,    /* 1.1V */
 167         .buck1_voltage[5] = 1100000,    /* 1.1V */
 168         .buck1_voltage[6] = 1000000,    /* 1.0V */
 169         .buck1_voltage[7] = 950000,     /* 0.95V */
 170
 171         .buck2_voltage[0] = 1100000,    /* 1.1V */
 172         .buck2_voltage[1] = 1000000,    /* 1.0V */
 173         .buck2_voltage[2] = 950000,     /* 0.95V */
 174         .buck2_voltage[3] = 900000,     /* 0.9V */
 175         .buck2_voltage[4] = 1100000,    /* 1.1V */
 176         .buck2_voltage[5] = 1000000,    /* 1.0V */
 177         .buck2_voltage[6] = 950000,     /* 0.95V */
 178         .buck2_voltage[7] = 900000,     /* 0.9V */
 179
 180         .buck5_voltage[0] = 1100000,    /* 1.1V */
 181         .buck5_voltage[1] = 1100000,    /* 1.1V */
 182         .buck5_voltage[2] = 1100000,    /* 1.1V */
 183         .buck5_voltage[3] = 1100000,    /* 1.1V */
 184         .buck5_voltage[4] = 1100000,    /* 1.1V */
 185         .buck5_voltage[5] = 1100000,    /* 1.1V */
 186         .buck5_voltage[6] = 1100000,    /* 1.1V */
 187         .buck5_voltage[7] = 1100000,    /* 1.1V */
 188 };
 189
 190 static struct i2c_board_info smdk4x12_i2c_devs0[] __initdata = {
 191         {
 192                 I2C_BOARD_INFO("max8997", 0x66),
 193                 .platform_data  = &smdk4x12_max8997_pdata,
 194         }
 195 };
 196
 197 static struct i2c_board_info smdk4x12_i2c_devs1[] __initdata = {
 198         { I2C_BOARD_INFO("wm8994", 0x1a), }
 199 };
 200
 201 static struct i2c_board_info smdk4x12_i2c_devs3[] __initdata = {
 202         /* nothing here yet */
 203 };
 204
 205 static struct i2c_board_info smdk4x12_i2c_devs7[] __initdata = {
 206         /* nothing here yet */
 207 };
 208
 209 static struct samsung_bl_gpio_info smdk4x12_bl_gpio_info = {
 210         .no = EXYNOS4_GPD0(1),
 211         .func = S3C_GPIO_SFN(2),
 212 };
 213
 214 static struct platform_pwm_backlight_data smdk4x12_bl_data = {
 215         .pwm_id = 1,
 216         .pwm_period_ns  = 1000,
 217 };
 218
 219 static uint32_t smdk4x12_keymap[] __initdata = {
 220         /* KEY(row, col, keycode) */
 221         KEY(1, 0, KEY_D), KEY(1, 1, KEY_A), KEY(1, 2, KEY_B),
 222         KEY(1, 3, KEY_E), KEY(1, 4, KEY_C)
 223 };
 224
 225 static struct matrix_keymap_data smdk4x12_keymap_data __initdata = {
 226         .keymap         = smdk4x12_keymap,
 227         .keymap_size    = ARRAY_SIZE(smdk4x12_keymap),
 228 };
 229
 230 static struct samsung_keypad_platdata smdk4x12_keypad_data __initdata = {
 231         .keymap_data    = &smdk4x12_keymap_data,
 232         .rows           = 2,
 233         .cols           = 5,
 234 };
 235
 236 static struct platform_device *smdk4x12_devices[] __initdata = {
 237         &s3c_device_hsmmc2,
 238         &s3c_device_hsmmc3,
 239         &s3c_device_i2c0,
 240         &s3c_device_i2c1,
 241         &s3c_device_i2c3,
 242         &s3c_device_i2c7,
 243         &s3c_device_rtc,
 244         &s3c_device_wdt,
 245         &samsung_device_keypad,
 246 };
 247
 248 static void __init smdk4x12_map_io(void)
 249 {
 250         clk_xusbxti.rate = 24000000;
 251
 252         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 253         s3c24xx_init_clocks(clk_xusbxti.rate);
 254         s3c24xx_init_uarts(smdk4x12_uartcfgs, ARRAY_SIZE(smdk4x12_uartcfgs));
 255 }
 256
 257 static void __init smdk4x12_machine_init(void)
 258 {
 259         s3c_i2c0_set_platdata(NULL);
 260         i2c_register_board_info(0, smdk4x12_i2c_devs0,
 261                                 ARRAY_SIZE(smdk4x12_i2c_devs0));
 262
 263         s3c_i2c1_set_platdata(NULL);
 264         i2c_register_board_info(1, smdk4x12_i2c_devs1,
 265                                 ARRAY_SIZE(smdk4x12_i2c_devs1));
 266
 267         s3c_i2c3_set_platdata(NULL);
 268         i2c_register_board_info(3, smdk4x12_i2c_devs3,
 269                                 ARRAY_SIZE(smdk4x12_i2c_devs3));
 270
 271         s3c_i2c7_set_platdata(NULL);
 272         i2c_register_board_info(7, smdk4x12_i2c_devs7,
 273                                 ARRAY_SIZE(smdk4x12_i2c_devs7));
 274
 275         samsung_bl_set(&smdk4x12_bl_gpio_info, &smdk4x12_bl_data);
 276
 277         samsung_keypad_set_platdata(&smdk4x12_keypad_data);
 278
 279         s3c_sdhci2_set_platdata(&smdk4x12_hsmmc2_pdata);
 280         s3c_sdhci3_set_platdata(&smdk4x12_hsmmc3_pdata);
 281
 282         platform_add_devices(smdk4x12_devices, ARRAY_SIZE(smdk4x12_devices));
 283 }
 284
 285 MACHINE_START(SMDK4212, "SMDK4212")
 286         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
 287         .atag_offset    = 0x100,
 288         .init_irq       = exynos4_init_irq,
 289         .map_io         = smdk4x12_map_io,
 290         .init_machine   = smdk4x12_machine_init,
 291         .timer          = &exynos4_timer,
 292 MACHINE_END
 293
 294 MACHINE_START(SMDK4412, "SMDK4412")
 295         /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
 296         /* Maintainer: Changhwan Youn <chaos.youn@samsung.com> */
 297         .atag_offset    = 0x100,
 298         .init_irq       = exynos4_init_irq,
 299         .map_io         = smdk4x12_map_io,
 300         .init_machine   = smdk4x12_machine_init,
 301         .timer          = &exynos4_timer,
 302 MACHINE_END