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 #include <plat/ehci.h>
  34 #include <plat/clock.h>
  35
  36 #include <mach/map.h>
  37
  38 /* Following are default values for UCON, ULCON and UFCON UART registers */
  39 #define NURI_UCON_DEFAULT       (S3C2410_UCON_TXILEVEL |        \
  40                                  S3C2410_UCON_RXILEVEL |        \
  41                                  S3C2410_UCON_TXIRQMODE |       \
  42                                  S3C2410_UCON_RXIRQMODE |       \
  43                                  S3C2410_UCON_RXFIFO_TOI |      \
  44                                  S3C2443_UCON_RXERR_IRQEN)
  45
  46 #define NURI_ULCON_DEFAULT      S3C2410_LCON_CS8
  47
  48 #define NURI_UFCON_DEFAULT      (S3C2410_UFCON_FIFOMODE |       \
  49                                  S5PV210_UFCON_TXTRIG256 |      \
  50                                  S5PV210_UFCON_RXTRIG256)
  51
  52 enum fixed_regulator_id {
  53         FIXED_REG_ID_MMC = 0,
  54 };
  55
  56 static struct s3c2410_uartcfg nuri_uartcfgs[] __initdata = {
  57         {
  58                 .hwport         = 0,
  59                 .ucon           = NURI_UCON_DEFAULT,
  60                 .ulcon          = NURI_ULCON_DEFAULT,
  61                 .ufcon          = NURI_UFCON_DEFAULT,
  62         },
  63         {
  64                 .hwport         = 1,
  65                 .ucon           = NURI_UCON_DEFAULT,
  66                 .ulcon          = NURI_ULCON_DEFAULT,
  67                 .ufcon          = NURI_UFCON_DEFAULT,
  68         },
  69         {
  70                 .hwport         = 2,
  71                 .ucon           = NURI_UCON_DEFAULT,
  72                 .ulcon          = NURI_ULCON_DEFAULT,
  73                 .ufcon          = NURI_UFCON_DEFAULT,
  74         },
  75         {
  76                 .hwport         = 3,
  77                 .ucon           = NURI_UCON_DEFAULT,
  78                 .ulcon          = NURI_ULCON_DEFAULT,
  79                 .ufcon          = NURI_UFCON_DEFAULT,
  80         },
  81 };
  82
  83 /* eMMC */
  84 static struct s3c_sdhci_platdata nuri_hsmmc0_data __initdata = {
  85         .max_width              = 8,
  86         .host_caps              = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
  87                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
  88                                 MMC_CAP_DISABLE | MMC_CAP_ERASE),
  89         .cd_type                = S3C_SDHCI_CD_PERMANENT,
  90         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
  91 };
  92
  93 static struct regulator_consumer_supply emmc_supplies[] = {
  94         REGULATOR_SUPPLY("vmmc", "s3c-sdhci.0"),
  95         REGULATOR_SUPPLY("vmmc", "dw_mmc"),
  96 };
  97
  98 static struct regulator_init_data emmc_fixed_voltage_init_data = {
  99         .constraints            = {
 100                 .name           = "VMEM_VDD_2.8V",
 101                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 102         },
 103         .num_consumer_supplies  = ARRAY_SIZE(emmc_supplies),
 104         .consumer_supplies      = emmc_supplies,
 105 };
 106
 107 static struct fixed_voltage_config emmc_fixed_voltage_config = {
 108         .supply_name            = "MASSMEMORY_EN (inverted)",
 109         .microvolts             = 2800000,
 110         .gpio                   = EXYNOS4_GPL1(1),
 111         .enable_high            = false,
 112         .init_data              = &emmc_fixed_voltage_init_data,
 113 };
 114
 115 static struct platform_device emmc_fixed_voltage = {
 116         .name                   = "reg-fixed-voltage",
 117         .id                     = FIXED_REG_ID_MMC,
 118         .dev                    = {
 119                 .platform_data  = &emmc_fixed_voltage_config,
 120         },
 121 };
 122
 123 /* SD */
 124 static struct s3c_sdhci_platdata nuri_hsmmc2_data __initdata = {
 125         .max_width              = 4,
 126         .host_caps              = MMC_CAP_4_BIT_DATA |
 127                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
 128                                 MMC_CAP_DISABLE,
 129         .ext_cd_gpio            = EXYNOS4_GPX3(3),      /* XEINT_27 */
 130         .ext_cd_gpio_invert     = 1,
 131         .cd_type                = S3C_SDHCI_CD_GPIO,
 132         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 133 };
 134
 135 /* WLAN */
 136 static struct s3c_sdhci_platdata nuri_hsmmc3_data __initdata = {
 137         .max_width              = 4,
 138         .host_caps              = MMC_CAP_4_BIT_DATA |
 139                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 140         .cd_type                = S3C_SDHCI_CD_EXTERNAL,
 141         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
 142 };
 143
 144 static void __init nuri_sdhci_init(void)
 145 {
 146         s3c_sdhci0_set_platdata(&nuri_hsmmc0_data);
 147         s3c_sdhci2_set_platdata(&nuri_hsmmc2_data);
 148         s3c_sdhci3_set_platdata(&nuri_hsmmc3_data);
 149 }
 150
 151 /* GPIO KEYS */
 152 static struct gpio_keys_button nuri_gpio_keys_tables[] = {
 153         {
 154                 .code                   = KEY_VOLUMEUP,
 155                 .gpio                   = EXYNOS4_GPX2(0),      /* XEINT16 */
 156                 .desc                   = "gpio-keys: KEY_VOLUMEUP",
 157                 .type                   = EV_KEY,
 158                 .active_low             = 1,
 159                 .debounce_interval      = 1,
 160         }, {
 161                 .code                   = KEY_VOLUMEDOWN,
 162                 .gpio                   = EXYNOS4_GPX2(1),      /* XEINT17 */
 163                 .desc                   = "gpio-keys: KEY_VOLUMEDOWN",
 164                 .type                   = EV_KEY,
 165                 .active_low             = 1,
 166                 .debounce_interval      = 1,
 167         }, {
 168                 .code                   = KEY_POWER,
 169                 .gpio                   = EXYNOS4_GPX2(7),      /* XEINT23 */
 170                 .desc                   = "gpio-keys: KEY_POWER",
 171                 .type                   = EV_KEY,
 172                 .active_low             = 1,
 173                 .wakeup                 = 1,
 174                 .debounce_interval      = 1,
 175         },
 176 };
 177
 178 static struct gpio_keys_platform_data nuri_gpio_keys_data = {
 179         .buttons                = nuri_gpio_keys_tables,
 180         .nbuttons               = ARRAY_SIZE(nuri_gpio_keys_tables),
 181 };
 182
 183 static struct platform_device nuri_gpio_keys = {
 184         .name                   = "gpio-keys",
 185         .dev                    = {
 186                 .platform_data  = &nuri_gpio_keys_data,
 187         },
 188 };
 189
 190 static void nuri_lcd_power_on(struct plat_lcd_data *pd, unsigned int power)
 191 {
 192         int gpio = EXYNOS4_GPE1(5);
 193
 194         gpio_request(gpio, "LVDS_nSHDN");
 195         gpio_direction_output(gpio, power);
 196         gpio_free(gpio);
 197 }
 198
 199 static int nuri_bl_init(struct device *dev)
 200 {
 201         int ret, gpio = EXYNOS4_GPE2(3);
 202
 203         ret = gpio_request(gpio, "LCD_LDO_EN");
 204         if (!ret)
 205                 gpio_direction_output(gpio, 0);
 206
 207         return ret;
 208 }
 209
 210 static int nuri_bl_notify(struct device *dev, int brightness)
 211 {
 212         if (brightness < 1)
 213                 brightness = 0;
 214
 215         gpio_set_value(EXYNOS4_GPE2(3), 1);
 216
 217         return brightness;
 218 }
 219
 220 static void nuri_bl_exit(struct device *dev)
 221 {
 222         gpio_free(EXYNOS4_GPE2(3));
 223 }
 224
 225 /* nuri pwm backlight */
 226 static struct platform_pwm_backlight_data nuri_backlight_data = {
 227         .pwm_id                 = 0,
 228         .pwm_period_ns          = 30000,
 229         .max_brightness         = 100,
 230         .dft_brightness         = 50,
 231         .init                   = nuri_bl_init,
 232         .notify                 = nuri_bl_notify,
 233         .exit                   = nuri_bl_exit,
 234 };
 235
 236 static struct platform_device nuri_backlight_device = {
 237         .name                   = "pwm-backlight",
 238         .id                     = -1,
 239         .dev                    = {
 240                 .parent         = &s3c_device_timer[0].dev,
 241                 .platform_data  = &nuri_backlight_data,
 242         },
 243 };
 244
 245 static struct plat_lcd_data nuri_lcd_platform_data = {
 246         .set_power              = nuri_lcd_power_on,
 247 };
 248
 249 static struct platform_device nuri_lcd_device = {
 250         .name                   = "platform-lcd",
 251         .id                     = -1,
 252         .dev                    = {
 253                 .platform_data  = &nuri_lcd_platform_data,
 254         },
 255 };
 256
 257 /* I2C1 */
 258 static struct i2c_board_info i2c1_devs[] __initdata = {
 259         /* Gyro, To be updated */
 260 };
 261
 262 /* GPIO I2C 5 (PMIC) */
 263 static struct i2c_board_info i2c5_devs[] __initdata = {
 264         /* max8997, To be updated */
 265 };
 266
 267 /* USB EHCI */
 268 static struct s5p_ehci_platdata nuri_ehci_pdata;
 269
 270 static void __init nuri_ehci_init(void)
 271 {
 272         struct s5p_ehci_platdata *pdata = &nuri_ehci_pdata;
 273
 274         s5p_ehci_set_platdata(pdata);
 275 }
 276
 277 static struct platform_device *nuri_devices[] __initdata = {
 278         /* Samsung Platform Devices */
 279         &emmc_fixed_voltage,
 280         &s3c_device_hsmmc0,
 281         &s3c_device_hsmmc2,
 282         &s3c_device_hsmmc3,
 283         &s3c_device_wdt,
 284         &s3c_device_timer[0],
 285         &s5p_device_ehci,
 286
 287         /* NURI Devices */
 288         &nuri_gpio_keys,
 289         &nuri_lcd_device,
 290         &nuri_backlight_device,
 291 };
 292
 293 static void __init nuri_map_io(void)
 294 {
 295         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 296         s3c24xx_init_clocks(24000000);
 297         s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
 298 }
 299
 300 static void __init nuri_machine_init(void)
 301 {
 302         nuri_sdhci_init();
 303
 304         i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));
 305         i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
 306
 307         nuri_ehci_init();
 308         clk_xusbxti.rate = 24000000;
 309
 310         /* Last */
 311         platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
 312 }
 313
 314 MACHINE_START(NURI, "NURI")
 315         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 316         .boot_params    = S5P_PA_SDRAM + 0x100,
 317         .init_irq       = exynos4_init_irq,
 318         .map_io         = nuri_map_io,
 319         .init_machine   = nuri_machine_init,
 320         .timer          = &exynos4_timer,
 321 MACHINE_END