arch/arm/mach-exynos4/mach-nuri.c

   1 /*
   2  * linux/arch/arm/mach-exynos4/mach-nuri.c
   3  *
   4  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/platform_device.h>
  12 #include <linux/serial_core.h>
  13 #include <linux/input.h>
  14 #include <linux/i2c.h>
  15 #include <linux/gpio_keys.h>
  16 #include <linux/gpio.h>
  17 #include <linux/regulator/machine.h>
  18 #include <linux/regulator/fixed.h>
  19 #include <linux/mmc/host.h>
  20 #include <linux/fb.h>
  21 #include <linux/pwm_backlight.h>
  22
  23 #include <video/platform_lcd.h>
  24
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach-types.h>
  27
  28 #include <plat/regs-serial.h>
  29 #include <plat/exynos4.h>
  30 #include <plat/cpu.h>
  31 #include <plat/devs.h>
  32 #include <plat/sdhci.h>
  33
  34 #include <mach/map.h>
  35
  36 /* Following are default values for UCON, ULCON and UFCON UART registers */
  37 #define NURI_UCON_DEFAULT       (S3C2410_UCON_TXILEVEL |        \
  38                                  S3C2410_UCON_RXILEVEL |        \
  39                                  S3C2410_UCON_TXIRQMODE |       \
  40                                  S3C2410_UCON_RXIRQMODE |       \
  41                                  S3C2410_UCON_RXFIFO_TOI |      \
  42                                  S3C2443_UCON_RXERR_IRQEN)
  43
  44 #define NURI_ULCON_DEFAULT      S3C2410_LCON_CS8
  45
  46 #define NURI_UFCON_DEFAULT      (S3C2410_UFCON_FIFOMODE |       \
  47                                  S5PV210_UFCON_TXTRIG256 |      \
  48                                  S5PV210_UFCON_RXTRIG256)
  49
  50 enum fixed_regulator_id {
  51         FIXED_REG_ID_MMC = 0,
  52 };
  53
  54 static struct s3c2410_uartcfg nuri_uartcfgs[] __initdata = {
  55         {
  56                 .hwport         = 0,
  57                 .ucon           = NURI_UCON_DEFAULT,
  58                 .ulcon          = NURI_ULCON_DEFAULT,
  59                 .ufcon          = NURI_UFCON_DEFAULT,
  60         },
  61         {
  62                 .hwport         = 1,
  63                 .ucon           = NURI_UCON_DEFAULT,
  64                 .ulcon          = NURI_ULCON_DEFAULT,
  65                 .ufcon          = NURI_UFCON_DEFAULT,
  66         },
  67         {
  68                 .hwport         = 2,
  69                 .ucon           = NURI_UCON_DEFAULT,
  70                 .ulcon          = NURI_ULCON_DEFAULT,
  71                 .ufcon          = NURI_UFCON_DEFAULT,
  72         },
  73         {
  74                 .hwport         = 3,
  75                 .ucon           = NURI_UCON_DEFAULT,
  76                 .ulcon          = NURI_ULCON_DEFAULT,
  77                 .ufcon          = NURI_UFCON_DEFAULT,
  78         },
  79 };
  80
  81 /* eMMC */
  82 static struct s3c_sdhci_platdata nuri_hsmmc0_data __initdata = {
  83         .max_width              = 8,
  84         .host_caps              = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
  85                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
  86                                 MMC_CAP_DISABLE | MMC_CAP_ERASE),
  87         .cd_type                = S3C_SDHCI_CD_PERMANENT,
  88         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
  89 };
  90
  91 static struct regulator_consumer_supply emmc_supplies[] = {
  92         REGULATOR_SUPPLY("vmmc", "s3c-sdhci.0"),
  93         REGULATOR_SUPPLY("vmmc", "dw_mmc"),
  94 };
  95
  96 static struct regulator_init_data emmc_fixed_voltage_init_data = {
  97         .constraints            = {
  98                 .name           = "VMEM_VDD_2.8V",
  99                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 100         },
 101         .num_consumer_supplies  = ARRAY_SIZE(emmc_supplies),
 102         .consumer_supplies      = emmc_supplies,
 103 };
 104
 105 static struct fixed_voltage_config emmc_fixed_voltage_config = {
 106         .supply_name            = "MASSMEMORY_EN (inverted)",
 107         .microvolts             = 2800000,
 108         .gpio                   = EXYNOS4_GPL1(1),
 109         .enable_high            = false,
 110         .init_data              = &emmc_fixed_voltage_init_data,
 111 };
 112
 113 static struct platform_device emmc_fixed_voltage = {
 114         .name                   = "reg-fixed-voltage",
 115         .id                     = FIXED_REG_ID_MMC,
 116         .dev                    = {
 117                 .platform_data  = &emmc_fixed_voltage_config,
 118         },
 119 };
 120
 121 /* SD */
 122 static struct s3c_sdhci_platdata nuri_hsmmc2_data __initdata = {
 123         .max_width              = 4,
 124         .host_caps              = MMC_CAP_4_BIT_DATA |
 125                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
 126                                 MMC_CAP_DISABLE,
 127         .ext_cd_gpio            = EXYNOS4_GPX3(3),      /* XEINT_27 */
 128         .ext_cd_gpio_invert     = 1,
 129         .cd_type                = S3C_SDHCI_CD_GPIO,
 130         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 131 };
 132
 133 /* WLAN */
 134 static struct s3c_sdhci_platdata nuri_hsmmc3_data __initdata = {
 135         .max_width              = 4,
 136         .host_caps              = MMC_CAP_4_BIT_DATA |
 137                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 138         .cd_type                = S3C_SDHCI_CD_EXTERNAL,
 139         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 140 };
 141
 142 static void __init nuri_sdhci_init(void)
 143 {
 144         s3c_sdhci0_set_platdata(&nuri_hsmmc0_data);
 145         s3c_sdhci2_set_platdata(&nuri_hsmmc2_data);
 146         s3c_sdhci3_set_platdata(&nuri_hsmmc3_data);
 147 }
 148
 149 /* GPIO KEYS */
 150 static struct gpio_keys_button nuri_gpio_keys_tables[] = {
 151         {
 152                 .code                   = KEY_VOLUMEUP,
 153                 .gpio                   = EXYNOS4_GPX2(0),      /* XEINT16 */
 154                 .desc                   = "gpio-keys: KEY_VOLUMEUP",
 155                 .type                   = EV_KEY,
 156                 .active_low             = 1,
 157                 .debounce_interval      = 1,
 158         }, {
 159                 .code                   = KEY_VOLUMEDOWN,
 160                 .gpio                   = EXYNOS4_GPX2(1),      /* XEINT17 */
 161                 .desc                   = "gpio-keys: KEY_VOLUMEDOWN",
 162                 .type                   = EV_KEY,
 163                 .active_low             = 1,
 164                 .debounce_interval      = 1,
 165         }, {
 166                 .code                   = KEY_POWER,
 167                 .gpio                   = EXYNOS4_GPX2(7),      /* XEINT23 */
 168                 .desc                   = "gpio-keys: KEY_POWER",
 169                 .type                   = EV_KEY,
 170                 .active_low             = 1,
 171                 .wakeup                 = 1,
 172                 .debounce_interval      = 1,
 173         },
 174 };
 175
 176 static struct gpio_keys_platform_data nuri_gpio_keys_data = {
 177         .buttons                = nuri_gpio_keys_tables,
 178         .nbuttons               = ARRAY_SIZE(nuri_gpio_keys_tables),
 179 };
 180
 181 static struct platform_device nuri_gpio_keys = {
 182         .name                   = "gpio-keys",
 183         .dev                    = {
 184                 .platform_data  = &nuri_gpio_keys_data,
 185         },
 186 };
 187
 188 static void nuri_lcd_power_on(struct plat_lcd_data *pd, unsigned int power)
 189 {
 190         int gpio = EXYNOS4_GPE1(5);
 191
 192         gpio_request(gpio, "LVDS_nSHDN");
 193         gpio_direction_output(gpio, power);
 194         gpio_free(gpio);
 195 }
 196
 197 static int nuri_bl_init(struct device *dev)
 198 {
 199         int ret, gpio = EXYNOS4_GPE2(3);
 200
 201         ret = gpio_request(gpio, "LCD_LDO_EN");
 202         if (!ret)
 203                 gpio_direction_output(gpio, 0);
 204
 205         return ret;
 206 }
 207
 208 static int nuri_bl_notify(struct device *dev, int brightness)
 209 {
 210         if (brightness < 1)
 211                 brightness = 0;
 212
 213         gpio_set_value(EXYNOS4_GPE2(3), 1);
 214
 215         return brightness;
 216 }
 217
 218 static void nuri_bl_exit(struct device *dev)
 219 {
 220         gpio_free(EXYNOS4_GPE2(3));
 221 }
 222
 223 /* nuri pwm backlight */
 224 static struct platform_pwm_backlight_data nuri_backlight_data = {
 225         .pwm_id                 = 0,
 226         .pwm_period_ns          = 30000,
 227         .max_brightness         = 100,
 228         .dft_brightness         = 50,
 229         .init                   = nuri_bl_init,
 230         .notify                 = nuri_bl_notify,
 231         .exit                   = nuri_bl_exit,
 232 };
 233
 234 static struct platform_device nuri_backlight_device = {
 235         .name                   = "pwm-backlight",
 236         .id                     = -1,
 237         .dev                    = {
 238                 .parent         = &s3c_device_timer[0].dev,
 239                 .platform_data  = &nuri_backlight_data,
 240         },
 241 };
 242
 243 static struct plat_lcd_data nuri_lcd_platform_data = {
 244         .set_power              = nuri_lcd_power_on,
 245 };
 246
 247 static struct platform_device nuri_lcd_device = {
 248         .name                   = "platform-lcd",
 249         .id                     = -1,
 250         .dev                    = {
 251                 .platform_data  = &nuri_lcd_platform_data,
 252         },
 253 };
 254
 255 /* I2C1 */
 256 static struct i2c_board_info i2c1_devs[] __initdata = {
 257         /* Gyro, To be updated */
 258 };
 259
 260 /* GPIO I2C 5 (PMIC) */
 261 static struct i2c_board_info i2c5_devs[] __initdata = {
 262         /* max8997, To be updated */
 263 };
 264
 265 static struct platform_device *nuri_devices[] __initdata = {
 266         /* Samsung Platform Devices */
 267         &emmc_fixed_voltage,
 268         &s3c_device_hsmmc0,
 269         &s3c_device_hsmmc2,
 270         &s3c_device_hsmmc3,
 271         &s3c_device_wdt,
 272         &s3c_device_timer[0],
 273
 274         /* NURI Devices */
 275         &nuri_gpio_keys,
 276         &nuri_lcd_device,
 277         &nuri_backlight_device,
 278 };
 279
 280 static void __init nuri_map_io(void)
 281 {
 282         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 283         s3c24xx_init_clocks(24000000);
 284         s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
 285 }
 286
 287 static void __init nuri_machine_init(void)
 288 {
 289         nuri_sdhci_init();
 290
 291         i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));
 292         i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
 293
 294         /* Last */
 295         platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
 296 }
 297
 298 MACHINE_START(NURI, "NURI")
 299         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 300         .boot_params    = S5P_PA_SDRAM + 0x100,
 301         .init_irq       = exynos4_init_irq,
 302         .map_io         = nuri_map_io,
 303         .init_machine   = nuri_machine_init,
 304         .timer          = &exynos4_timer,
 305 MACHINE_END