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palmtx.c

/*
 * Hardware definitions for PalmTX
 *
 * Author:     Marek Vasut <marek.vasut@gmail.com>
 *
 * Based on work of:
 *          Alex Osborne <ato@meshy.org>
 *          Cristiano P. <cristianop@users.sourceforge.net>
 *          Jan Herman <2hp@seznam.cz>
 *          Michal Hrusecky
 *
 * 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.
 *
 * (find more info at www.hackndev.com)
 *
 */

#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/pda_power.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio.h>
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
#include <linux/usb/gpio_vbus.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>

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

#include <mach/pxa27x.h>
#include <mach/audio.h>
#include <mach/palmtx.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/irda.h>
#include <plat/pxa27x_keypad.h>
#include <mach/udc.h>
#include <mach/palmasoc.h>
#include <mach/palm27x.h>

#include "generic.h"
#include "devices.h"

/******************************************************************************
 * Pin configuration
 ******************************************************************************/
static unsigned long palmtx_pin_config[] __initdata = {
      /* MMC */
      GPIO32_MMC_CLK,
      GPIO92_MMC_DAT_0,
      GPIO109_MMC_DAT_1,
      GPIO110_MMC_DAT_2,
      GPIO111_MMC_DAT_3,
      GPIO112_MMC_CMD,
      GPIO14_GPIO,      /* SD detect */
      GPIO114_GPIO,     /* SD power */
      GPIO115_GPIO,     /* SD r/o switch */

      /* AC97 */
      GPIO28_AC97_BITCLK,
      GPIO29_AC97_SDATA_IN_0,
      GPIO30_AC97_SDATA_OUT,
      GPIO31_AC97_SYNC,
      GPIO89_AC97_SYSCLK,
      GPIO95_AC97_nRESET,

      /* IrDA */
      GPIO40_GPIO,      /* ir disable */
      GPIO46_FICP_RXD,
      GPIO47_FICP_TXD,

      /* PWM */
      GPIO16_PWM0_OUT,

      /* USB */
      GPIO13_GPIO,      /* usb detect */
      GPIO93_GPIO,      /* usb power */

      /* PCMCIA */
      GPIO48_nPOE,
      GPIO49_nPWE,
      GPIO50_nPIOR,
      GPIO51_nPIOW,
      GPIO85_nPCE_1,
      GPIO54_nPCE_2,
      GPIO79_PSKTSEL,
      GPIO55_nPREG,
      GPIO56_nPWAIT,
      GPIO57_nIOIS16,
      GPIO94_GPIO,      /* wifi power 1 */
      GPIO108_GPIO,     /* wifi power 2 */
      GPIO116_GPIO,     /* wifi ready */

      /* MATRIX KEYPAD */
      GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
      GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
      GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
      GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
      GPIO103_KP_MKOUT_0,
      GPIO104_KP_MKOUT_1,
      GPIO105_KP_MKOUT_2,

      /* LCD */
      GPIOxx_LCD_TFT_16BPP,

      /* FFUART */
      GPIO34_FFUART_RXD,
      GPIO39_FFUART_TXD,

      /* NAND */
      GPIO15_nCS_1,
      GPIO18_RDY,

      /* MISC. */
      GPIO10_GPIO,      /* hotsync button */
      GPIO12_GPIO,      /* power detect */
      GPIO107_GPIO,     /* earphone detect */
};

/******************************************************************************
 * NOR Flash
 ******************************************************************************/
#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
static struct mtd_partition palmtx_partitions[] = {
      {
            .name       = "Flash",
            .offset           = 0x00000000,
            .size       = MTDPART_SIZ_FULL,
            .mask_flags = 0
      }
};

static struct physmap_flash_data palmtx_flash_data[] = {
      {
            .width            = 2,              /* bankwidth in bytes */
            .parts            = palmtx_partitions,
            .nr_parts   = ARRAY_SIZE(palmtx_partitions)
      }
};

static struct resource palmtx_flash_resource = {
      .start      = PXA_CS0_PHYS,
      .end  = PXA_CS0_PHYS + SZ_8M - 1,
      .flags      = IORESOURCE_MEM,
};

static struct platform_device palmtx_flash = {
      .name       = "physmap-flash",
      .id         = 0,
      .resource   = &palmtx_flash_resource,
      .num_resources    = 1,
      .dev        = {
            .platform_data = palmtx_flash_data,
      },
};

static void __init palmtx_nor_init(void)
{
      platform_device_register(&palmtx_flash);
}
#else
static inline void palmtx_nor_init(void) {}
#endif

/******************************************************************************
 * GPIO keyboard
 ******************************************************************************/
#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
static unsigned int palmtx_matrix_keys[] = {
      KEY(0, 0, KEY_POWER),
      KEY(0, 1, KEY_F1),
      KEY(0, 2, KEY_ENTER),

      KEY(1, 0, KEY_F2),
      KEY(1, 1, KEY_F3),
      KEY(1, 2, KEY_F4),

      KEY(2, 0, KEY_UP),
      KEY(2, 2, KEY_DOWN),

      KEY(3, 0, KEY_RIGHT),
      KEY(3, 2, KEY_LEFT),
};

static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
      .matrix_key_rows  = 4,
      .matrix_key_cols  = 3,
      .matrix_key_map         = palmtx_matrix_keys,
      .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),

      .debounce_interval      = 30,
};

static void __init palmtx_kpc_init(void)
{
      pxa_set_keypad_info(&palmtx_keypad_platform_data);
}
#else
static inline void palmtx_kpc_init(void) {}
#endif

/******************************************************************************
 * GPIO keys
 ******************************************************************************/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button palmtx_pxa_buttons[] = {
      {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
};

static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
      .buttons    = palmtx_pxa_buttons,
      .nbuttons   = ARRAY_SIZE(palmtx_pxa_buttons),
};

static struct platform_device palmtx_pxa_keys = {
      .name = "gpio-keys",
      .id   = -1,
      .dev  = {
            .platform_data = &palmtx_pxa_keys_data,
      },
};

static void __init palmtx_keys_init(void)
{
      platform_device_register(&palmtx_pxa_keys);
}
#else
static inline void palmtx_keys_init(void) {}
#endif

/******************************************************************************
 * NAND Flash
 ******************************************************************************/
#if defined(CONFIG_MTD_NAND_PLATFORM) || \
      defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd,
                         unsigned int ctrl)
{
      struct nand_chip *this = mtd->priv;
      unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;

      if (cmd == NAND_CMD_NONE)
            return;

      if (ctrl & NAND_CLE)
            writeb(cmd, PALMTX_NAND_CLE_VIRT);
      else if (ctrl & NAND_ALE)
            writeb(cmd, PALMTX_NAND_ALE_VIRT);
      else
            writeb(cmd, nandaddr);
}

static struct mtd_partition palmtx_partition_info[] = {
      [0] = {
            .name = "palmtx-0",
            .offset     = 0,
            .size = MTDPART_SIZ_FULL
      },
};

static const char *palmtx_part_probes[] = { "cmdlinepart", NULL };

struct platform_nand_data palmtx_nand_platdata = {
      .chip = {
            .nr_chips         = 1,
            .chip_offset            = 0,
            .nr_partitions          = ARRAY_SIZE(palmtx_partition_info),
            .partitions       = palmtx_partition_info,
            .chip_delay       = 20,
            .part_probe_types       = palmtx_part_probes,
      },
      .ctrl = {
            .cmd_ctrl   = palmtx_nand_cmd_ctl,
      },
};

static struct resource palmtx_nand_resource[] = {
      [0]   = {
            .start      = PXA_CS1_PHYS,
            .end  = PXA_CS1_PHYS + SZ_1M - 1,
            .flags      = IORESOURCE_MEM,
      },
};

static struct platform_device palmtx_nand = {
      .name       = "gen_nand",
      .num_resources    = ARRAY_SIZE(palmtx_nand_resource),
      .resource   = palmtx_nand_resource,
      .id         = -1,
      .dev        = {
            .platform_data    = &palmtx_nand_platdata,
      }
};

static void __init palmtx_nand_init(void)
{
      platform_device_register(&palmtx_nand);
}
#else
static inline void palmtx_nand_init(void) {}
#endif

/******************************************************************************
 * Machine init
 ******************************************************************************/
static struct map_desc palmtx_io_desc[] __initdata = {
{
      .virtual    = PALMTX_PCMCIA_VIRT,
      .pfn        = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
      .length           = PALMTX_PCMCIA_SIZE,
      .type       = MT_DEVICE,
}, {
      .virtual    = PALMTX_NAND_ALE_VIRT,
      .pfn        = __phys_to_pfn(PALMTX_NAND_ALE_PHYS),
      .length           = SZ_1M,
      .type       = MT_DEVICE,
}, {
      .virtual    = PALMTX_NAND_CLE_VIRT,
      .pfn        = __phys_to_pfn(PALMTX_NAND_CLE_PHYS),
      .length           = SZ_1M,
      .type       = MT_DEVICE,
}
};

static void __init palmtx_map_io(void)
{
      pxa27x_map_io();
      iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
}

static void __init palmtx_init(void)
{
      pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
      pxa_set_ffuart_info(NULL);
      pxa_set_btuart_info(NULL);
      pxa_set_stuart_info(NULL);

      palm27x_mmc_init(GPIO_NR_PALMTX_SD_DETECT_N, GPIO_NR_PALMTX_SD_READONLY,
                  GPIO_NR_PALMTX_SD_POWER, 0);
      palm27x_pm_init(PALMTX_STR_BASE);
      palm27x_lcd_init(-1, &palm_320x480_lcd_mode);
      palm27x_udc_init(GPIO_NR_PALMTX_USB_DETECT_N,
                  GPIO_NR_PALMTX_USB_PULLUP, 1);
      palm27x_irda_init(GPIO_NR_PALMTX_IR_DISABLE);
      palm27x_ac97_init(PALMTX_BAT_MIN_VOLTAGE, PALMTX_BAT_MAX_VOLTAGE,
                  GPIO_NR_PALMTX_EARPHONE_DETECT, 95);
      palm27x_pwm_init(GPIO_NR_PALMTX_BL_POWER, GPIO_NR_PALMTX_LCD_POWER);
      palm27x_power_init(GPIO_NR_PALMTX_POWER_DETECT, -1);
      palm27x_pmic_init();
      palmtx_kpc_init();
      palmtx_keys_init();
      palmtx_nor_init();
      palmtx_nand_init();
}

MACHINE_START(PALMTX, "Palm T|X")
      .boot_params      = 0xa0000100,
      .map_io           = palmtx_map_io,
      .init_irq   = pxa27x_init_irq,
      .timer            = &pxa_timer,
      .init_machine     = palmtx_init
MACHINE_END

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