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mach-rx1950.c

/* linux/arch/arm/mach-s3c2440/mach-rx1950.c
 *
 * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
 * Copyright (c) 2007-2010 Vasily Khoruzhick
 *
 * based on smdk2440 written by Ben Dooks
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
*/

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/memblock.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/sysdev.h>
#include <linux/pda_power.h>
#include <linux/pwm_backlight.h>
#include <linux/pwm.h>
#include <linux/s3c_adc_battery.h>
#include <linux/leds.h>
#include <linux/i2c.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

#include <linux/mmc/host.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach-types.h>

#include <mach/regs-gpio.h>
#include <mach/regs-gpioj.h>
#include <mach/h1940.h>
#include <mach/fb.h>

#include <plat/clock.h>
#include <plat/regs-serial.h>
#include <plat/regs-iic.h>
#include <plat/mci.h>
#include <plat/udc.h>
#include <plat/nand.h>
#include <plat/iic.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/pm.h>
#include <plat/irq.h>
#include <plat/ts.h>

#include <sound/uda1380.h>

#define LCD_PWM_PERIOD 192960
#define LCD_PWM_DUTY 127353

static struct map_desc rx1950_iodesc[] __initdata = {
};

static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
      [0] = {
             .name = "fclk",
             .divisor = 0x0a,
             .min_baud = 0,
             .max_baud = 0,
      },
};

static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
      [0] = {
             .hwport = 0,
             .flags = 0,
             .ucon = 0x3c5,
             .ulcon = 0x03,
             .ufcon = 0x51,
             .clocks = rx1950_serial_clocks,
             .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
      },
      [1] = {
             .hwport = 1,
             .flags = 0,
             .ucon = 0x3c5,
             .ulcon = 0x03,
             .ufcon = 0x51,
             .clocks = rx1950_serial_clocks,
             .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
      },
      /* IR port */
      [2] = {
             .hwport = 2,
             .flags = 0,
             .ucon = 0x3c5,
             .ulcon = 0x43,
             .ufcon = 0xf1,
             .clocks = rx1950_serial_clocks,
             .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
      },
};

static struct s3c2410fb_display rx1950_display = {
      .type = S3C2410_LCDCON1_TFT,
      .width = 240,
      .height = 320,
      .xres = 240,
      .yres = 320,
      .bpp = 16,

      .pixclock = 260000,
      .left_margin = 10,
      .right_margin = 20,
      .hsync_len = 10,
      .upper_margin = 2,
      .lower_margin = 2,
      .vsync_len = 2,

      .lcdcon5 = S3C2410_LCDCON5_FRM565 |
                     S3C2410_LCDCON5_INVVCLK |
                     S3C2410_LCDCON5_INVVLINE |
                     S3C2410_LCDCON5_INVVFRAME |
                     S3C2410_LCDCON5_HWSWP |
                     (0x02 << 13) |
                     (0x02 << 15),

};

static int power_supply_init(struct device *dev)
{
      return gpio_request(S3C2410_GPF(2), "cable plugged");
}

static int rx1950_is_ac_online(void)
{
      return !gpio_get_value(S3C2410_GPF(2));
}

static void power_supply_exit(struct device *dev)
{
      gpio_free(S3C2410_GPF(2));
}

static char *rx1950_supplicants[] = {
      "main-battery"
};

static struct pda_power_pdata power_supply_info = {
      .init             = power_supply_init,
      .is_ac_online           = rx1950_is_ac_online,
      .exit             = power_supply_exit,
      .supplied_to            = rx1950_supplicants,
      .num_supplicants  = ARRAY_SIZE(rx1950_supplicants),
};

static struct resource power_supply_resources[] = {
      [0] = {
                  .name = "ac",
                  .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
                                IORESOURCE_IRQ_HIGHEDGE,
                  .start      = IRQ_EINT2,
                  .end  = IRQ_EINT2,
      },
};

static struct platform_device power_supply = {
      .name             = "pda-power",
      .id               = -1,
      .dev              = {
                              .platform_data =
                                    &power_supply_info,
      },
      .resource         = power_supply_resources,
      .num_resources          = ARRAY_SIZE(power_supply_resources),
};

static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
      { .volt = 4100, .cur = 156, .level = 100},
      { .volt = 4050, .cur = 156, .level = 95},
      { .volt = 4025, .cur = 141, .level = 90},
      { .volt = 3995, .cur = 144, .level = 85},
      { .volt = 3957, .cur = 162, .level = 80},
      { .volt = 3931, .cur = 147, .level = 75},
      { .volt = 3902, .cur = 147, .level = 70},
      { .volt = 3863, .cur = 153, .level = 65},
      { .volt = 3838, .cur = 150, .level = 60},
      { .volt = 3800, .cur = 153, .level = 55},
      { .volt = 3765, .cur = 153, .level = 50},
      { .volt = 3748, .cur = 172, .level = 45},
      { .volt = 3740, .cur = 153, .level = 40},
      { .volt = 3714, .cur = 175, .level = 35},
      { .volt = 3710, .cur = 156, .level = 30},
      { .volt = 3963, .cur = 156, .level = 25},
      { .volt = 3672, .cur = 178, .level = 20},
      { .volt = 3651, .cur = 178, .level = 15},
      { .volt = 3629, .cur = 178, .level = 10},
      { .volt = 3612, .cur = 162, .level = 5},
      { .volt = 3605, .cur = 162, .level = 0},
};

static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
      { .volt = 4200, .cur = 0, .level = 100},
      { .volt = 4190, .cur = 0, .level = 99},
      { .volt = 4178, .cur = 0, .level = 95},
      { .volt = 4110, .cur = 0, .level = 70},
      { .volt = 4076, .cur = 0, .level = 65},
      { .volt = 4046, .cur = 0, .level = 60},
      { .volt = 4021, .cur = 0, .level = 55},
      { .volt = 3999, .cur = 0, .level = 50},
      { .volt = 3982, .cur = 0, .level = 45},
      { .volt = 3965, .cur = 0, .level = 40},
      { .volt = 3957, .cur = 0, .level = 35},
      { .volt = 3948, .cur = 0, .level = 30},
      { .volt = 3936, .cur = 0, .level = 25},
      { .volt = 3927, .cur = 0, .level = 20},
      { .volt = 3906, .cur = 0, .level = 15},
      { .volt = 3880, .cur = 0, .level = 10},
      { .volt = 3829, .cur = 0, .level = 5},
      { .volt = 3820, .cur = 0, .level = 0},
};

int rx1950_bat_init(void)
{
      int ret;

      ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
      if (ret)
            goto err_gpio1;
      ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
      if (ret)
            goto err_gpio2;

      return 0;

err_gpio2:
      gpio_free(S3C2410_GPJ(2));
err_gpio1:
      return ret;
}

void rx1950_bat_exit(void)
{
      gpio_free(S3C2410_GPJ(2));
      gpio_free(S3C2410_GPJ(3));
}

void rx1950_enable_charger(void)
{
      gpio_direction_output(S3C2410_GPJ(2), 1);
      gpio_direction_output(S3C2410_GPJ(3), 1);
}

void rx1950_disable_charger(void)
{
      gpio_direction_output(S3C2410_GPJ(2), 0);
      gpio_direction_output(S3C2410_GPJ(3), 0);
}

static struct gpio_led rx1950_leds_desc[] = {
      {
            .name                   = "Green",
            .default_trigger  = "main-battery-charging-or-full",
            .gpio                   = S3C2410_GPA(6),
      },
      {
            .name                   = "Red",
            .default_trigger  = "main-battery-full",
            .gpio                   = S3C2410_GPA(7),
      },
      {
            .name                   = "Blue",
            .default_trigger  = "rx1950-acx-mem",
            .gpio                   = S3C2410_GPA(11),
      },
};

static struct gpio_led_platform_data rx1950_leds_pdata = {
      .num_leds   = ARRAY_SIZE(rx1950_leds_desc),
      .leds       = rx1950_leds_desc,
};

static struct platform_device rx1950_leds = {
      .name = "leds-gpio",
      .id         = -1,
      .dev  = {
                        .platform_data = &rx1950_leds_pdata,
      },
};

static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
      .init = rx1950_bat_init,
      .exit = rx1950_bat_exit,
      .enable_charger = rx1950_enable_charger,
      .disable_charger = rx1950_disable_charger,
      .gpio_charge_finished = S3C2410_GPF(3),
      .lut_noac = bat_lut_noac,
      .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
      .lut_acin = bat_lut_acin,
      .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
      .volt_channel = 0,
      .current_channel = 1,
      .volt_mult = 4235,
      .current_mult = 2900,
      .internal_impedance = 200,
};

static struct platform_device rx1950_battery = {
      .name             = "s3c-adc-battery",
      .id               = -1,
      .dev = {
            .parent = &s3c_device_adc.dev,
            .platform_data = &rx1950_bat_cfg,
      },
};

static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
      .displays = &rx1950_display,
      .num_displays = 1,
      .default_display = 0,

      .lpcsel = 0x02,
      .gpccon = 0xaa9556a9,
      .gpccon_mask = 0xffc003fc,
      .gpcup = 0x0000ffff,
      .gpcup_mask = 0xffffffff,

      .gpdcon = 0xaa90aaa1,
      .gpdcon_mask = 0xffc0fff0,
      .gpdup = 0x0000fcfd,
      .gpdup_mask = 0xffffffff,

};

static struct pwm_device *lcd_pwm;

void rx1950_lcd_power(int enable)
{
      int i;
      static int enabled;
      if (enabled == enable)
            return;
      if (!enable) {

            /* GPC11-GPC15->OUTPUT */
            for (i = 11; i < 16; i++)
                  gpio_direction_output(S3C2410_GPC(i), 1);

            /* Wait a bit here... */
            mdelay(100);

            /* GPD2-GPD7->OUTPUT */
            /* GPD11-GPD15->OUTPUT */
            /* GPD2-GPD7->1, GPD11-GPD15->1 */
            for (i = 2; i < 8; i++)
                  gpio_direction_output(S3C2410_GPD(i), 1);
            for (i = 11; i < 16; i++)
                  gpio_direction_output(S3C2410_GPD(i), 1);

            /* Wait a bit here...*/
            mdelay(100);

            /* GPB0->OUTPUT, GPB0->0 */
            gpio_direction_output(S3C2410_GPB(0), 0);

            /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
            for (i = 1; i < 5; i++)
                  gpio_direction_output(S3C2410_GPC(i), 0);

            /* GPC15-GPC11->0 */
            for (i = 11; i < 16; i++)
                  gpio_direction_output(S3C2410_GPC(i), 0);

            /* GPD15-GPD11->0, GPD2->GPD7->0 */
            for (i = 11; i < 16; i++)
                  gpio_direction_output(S3C2410_GPD(i), 0);

            for (i = 2; i < 8; i++)
                  gpio_direction_output(S3C2410_GPD(i), 0);

            /* GPC6->0, GPC7->0, GPC5->0 */
            gpio_direction_output(S3C2410_GPC(6), 0);
            gpio_direction_output(S3C2410_GPC(7), 0);
            gpio_direction_output(S3C2410_GPC(5), 0);

            /* GPB1->OUTPUT, GPB1->0 */
            gpio_direction_output(S3C2410_GPB(1), 0);
            pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
            pwm_disable(lcd_pwm);

            /* GPC0->0, GPC10->0 */
            gpio_direction_output(S3C2410_GPC(0), 0);
            gpio_direction_output(S3C2410_GPC(10), 0);
      } else {
            pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
            pwm_enable(lcd_pwm);

            gpio_direction_output(S3C2410_GPC(0), 1);
            gpio_direction_output(S3C2410_GPC(5), 1);

            s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
            gpio_direction_output(S3C2410_GPC(7), 1);

            for (i = 1; i < 5; i++)
                  s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));

            for (i = 11; i < 16; i++)
                  s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));

            for (i = 2; i < 8; i++)
                  s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));

            for (i = 11; i < 16; i++)
                  s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));

            gpio_direction_output(S3C2410_GPC(10), 1);
            gpio_direction_output(S3C2410_GPC(6), 1);
      }
      enabled = enable;
}

static void rx1950_bl_power(int enable)
{
      static int enabled;
      if (enabled == enable)
            return;
      if (!enable) {
                  gpio_direction_output(S3C2410_GPB(0), 0);
      } else {
                  /* LED driver need a "push" to power on */
                  gpio_direction_output(S3C2410_GPB(0), 1);
                  /* Warm up backlight for one period of PWM.
                   * Without this trick its almost impossible to
                   * enable backlight with low brightness value
                   */
                  ndelay(48000);
                  s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
      }
      enabled = enable;
}

static int rx1950_backlight_init(struct device *dev)
{
      WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
      lcd_pwm = pwm_request(1, "RX1950 LCD");
      if (IS_ERR(lcd_pwm)) {
            dev_err(dev, "Unable to request PWM for LCD power!\n");
            return PTR_ERR(lcd_pwm);
      }

      rx1950_lcd_power(1);
      rx1950_bl_power(1);

      return 0;
}

static void rx1950_backlight_exit(struct device *dev)
{
      rx1950_bl_power(0);
      rx1950_lcd_power(0);

      pwm_free(lcd_pwm);
      gpio_free(S3C2410_GPB(0));
}


static int rx1950_backlight_notify(struct device *dev, int brightness)
{
      if (!brightness) {
            rx1950_bl_power(0);
            rx1950_lcd_power(0);
      } else {
            rx1950_lcd_power(1);
            rx1950_bl_power(1);
      }
      return brightness;
}

static struct platform_pwm_backlight_data rx1950_backlight_data = {
      .pwm_id = 0,
      .max_brightness = 24,
      .dft_brightness = 4,
      .pwm_period_ns = 48000,
      .init = rx1950_backlight_init,
      .notify = rx1950_backlight_notify,
      .exit = rx1950_backlight_exit,
};

static struct platform_device rx1950_backlight = {
      .name = "pwm-backlight",
      .dev = {
            .parent = &s3c_device_timer[0].dev,
            .platform_data = &rx1950_backlight_data,
      },
};

static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
{
      switch (power_mode) {
      case MMC_POWER_OFF:
            gpio_direction_output(S3C2410_GPJ(1), 0);
            break;
      case MMC_POWER_UP:
      case MMC_POWER_ON:
            gpio_direction_output(S3C2410_GPJ(1), 1);
            break;
      default:
            break;
      }
}

static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
      .gpio_detect = S3C2410_GPF(5),
      .gpio_wprotect = S3C2410_GPH(8),
      .set_power = rx1950_set_mmc_power,
      .ocr_avail = MMC_VDD_32_33,
};

static struct mtd_partition rx1950_nand_part[] = {
      [0] = {
                  .name = "Boot0",
                  .offset = 0,
                  .size = 0x4000,
                  .mask_flags = MTD_WRITEABLE,
      },
      [1] = {
                  .name = "Boot1",
                  .offset = MTDPART_OFS_APPEND,
                  .size = 0x40000,
                  .mask_flags = MTD_WRITEABLE,
      },
      [2] = {
                  .name = "Kernel",
                  .offset = MTDPART_OFS_APPEND,
                  .size = 0x300000,
                  .mask_flags = 0,
      },
      [3] = {
                  .name = "Filesystem",
                  .offset = MTDPART_OFS_APPEND,
                  .size = MTDPART_SIZ_FULL,
                  .mask_flags = 0,
      },
};

static struct s3c2410_nand_set rx1950_nand_sets[] = {
      [0] = {
                  .name = "Internal",
                  .nr_chips = 1,
                  .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
                  .partitions = rx1950_nand_part,
      },
};

static struct s3c2410_platform_nand rx1950_nand_info = {
      .tacls = 25,
      .twrph0 = 50,
      .twrph1 = 15,
      .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
      .sets = rx1950_nand_sets,
};

static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
      switch (cmd) {
      case S3C2410_UDC_P_ENABLE:
            gpio_direction_output(S3C2410_GPJ(5), 1);
            break;
      case S3C2410_UDC_P_DISABLE:
            gpio_direction_output(S3C2410_GPJ(5), 0);
            break;
      case S3C2410_UDC_P_RESET:
            break;
      default:
            break;
      }
}

static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
      .udc_command = rx1950_udc_pullup,
      .vbus_pin = S3C2410_GPG(5),
      .vbus_pin_inverted = 1,
};

static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
      .delay = 10000,
      .presc = 49,
      .oversampling_shift = 3,
};

static struct gpio_keys_button rx1950_gpio_keys_table[] = {
      {
            .code       = KEY_POWER,
            .gpio       = S3C2410_GPF(0),
            .active_low = 1,
            .desc       = "Power button",
            .wakeup           = 1,
      },
      {
            .code       = KEY_F5,
            .gpio       = S3C2410_GPF(7),
            .active_low = 1,
            .desc       = "Record button",
      },
      {
            .code       = KEY_F1,
            .gpio       = S3C2410_GPG(0),
            .active_low = 1,
            .desc       = "Calendar button",
      },
      {
            .code       = KEY_F2,
            .gpio       = S3C2410_GPG(2),
            .active_low = 1,
            .desc       = "Contacts button",
      },
      {
            .code       = KEY_F3,
            .gpio       = S3C2410_GPG(3),
            .active_low = 1,
            .desc       = "Mail button",
      },
      {
            .code       = KEY_F4,
            .gpio       = S3C2410_GPG(7),
            .active_low = 1,
            .desc       = "WLAN button",
      },
      {
            .code       = KEY_LEFT,
            .gpio       = S3C2410_GPG(10),
            .active_low = 1,
            .desc       = "Left button",
      },
      {
            .code       = KEY_RIGHT,
            .gpio       = S3C2410_GPG(11),
            .active_low = 1,
            .desc       = "Right button",
      },
      {
            .code       = KEY_UP,
            .gpio       = S3C2410_GPG(4),
            .active_low = 1,
            .desc       = "Up button",
      },
      {
            .code       = KEY_DOWN,
            .gpio       = S3C2410_GPG(6),
            .active_low = 1,
            .desc       = "Down button",
      },
      {
            .code       = KEY_ENTER,
            .gpio       = S3C2410_GPG(9),
            .active_low = 1,
            .desc       = "Ok button"
      },
};

static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
      .buttons = rx1950_gpio_keys_table,
      .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
};

static struct platform_device rx1950_device_gpiokeys = {
      .name = "gpio-keys",
      .dev.platform_data = &rx1950_gpio_keys_data,
};

static struct uda1380_platform_data uda1380_info = {
      .gpio_power = S3C2410_GPJ(0),
      .gpio_reset = S3C2410_GPD(0),
      .dac_clk    = UDA1380_DAC_CLK_SYSCLK,
};

static struct i2c_board_info rx1950_i2c_devices[] = {
      {
            I2C_BOARD_INFO("uda1380", 0x1a),
            .platform_data = &uda1380_info,
      },
};

static struct platform_device *rx1950_devices[] __initdata = {
      &s3c_device_lcd,
      &s3c_device_wdt,
      &s3c_device_i2c0,
      &s3c_device_iis,
      &samsung_asoc_dma,
      &s3c_device_usbgadget,
      &s3c_device_rtc,
      &s3c_device_nand,
      &s3c_device_sdi,
      &s3c_device_adc,
      &s3c_device_ts,
      &s3c_device_timer[0],
      &s3c_device_timer[1],
      &rx1950_backlight,
      &rx1950_device_gpiokeys,
      &power_supply,
      &rx1950_battery,
      &rx1950_leds,
};

static struct clk *rx1950_clocks[] __initdata = {
      &s3c24xx_clkout0,
      &s3c24xx_clkout1,
};

static void __init rx1950_map_io(void)
{
      s3c24xx_clkout0.parent  = &clk_h;
      s3c24xx_clkout1.parent  = &clk_f;

      s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));

      s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
      s3c24xx_init_clocks(16934000);
      s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));

      /* setup PM */

#ifdef CONFIG_PM_H1940
      memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
#endif

      s3c_pm_init();
}

static void __init rx1950_init_machine(void)
{
      int i;

      s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
      s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
      s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
      s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
      s3c_i2c0_set_platdata(NULL);
      s3c_nand_set_platdata(&rx1950_nand_info);

      /* Turn off suspend on both USB ports, and switch the
       * selectable USB port to USB device mode. */
      s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
                                    S3C2410_MISCCR_USBSUSPND0 |
                                    S3C2410_MISCCR_USBSUSPND1, 0x0);

      WARN_ON(gpio_request(S3C2410_GPJ(5), "UDC pullup"));
      gpio_direction_output(S3C2410_GPJ(5), 0);

      /* mmc power is disabled by default */
      WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
      gpio_direction_output(S3C2410_GPJ(1), 0);

      for (i = 0; i < 8; i++)
            WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));

      for (i = 10; i < 16; i++)
            WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));

      for (i = 2; i < 8; i++)
            WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));

      for (i = 11; i < 16; i++)
            WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));

      WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));

      platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));

      i2c_register_board_info(0, rx1950_i2c_devices,
            ARRAY_SIZE(rx1950_i2c_devices));
}

/* H1940 and RX3715 need to reserve this for suspend */
static void __init rx1950_reserve(void)
{
      memblock_reserve(0x30003000, 0x1000);
      memblock_reserve(0x30081000, 0x1000);
}

MACHINE_START(RX1950, "HP iPAQ RX1950")
    /* Maintainers: Vasily Khoruzhick */
      .boot_params = S3C2410_SDRAM_PA + 0x100,
      .map_io = rx1950_map_io,
      .reserve    = rx1950_reserve,
      .init_irq = s3c24xx_init_irq,
      .init_machine = rx1950_init_machine,
      .timer = &s3c24xx_timer,
MACHINE_END

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