palmtx.c

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/*
 * Hardware definitions for PalmTX
 *
 * Author:     Marek Vasut <[email protected]>
 *
 * Based on work of:
 *      Alex Osborne <[email protected]>
 *      Cristiano P. <[email protected]>
 *      Jan Herman <[email protected]>
 *      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 <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/irda-pxaficp.h>
#include <linux/platform_data/keypad-pxa27x.h>
#include <mach/udc.h>
#include <linux/platform_data/asoc-palm27x.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;
    char __iomem *nandaddr = 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
    },
};

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,
    },
    .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    = (unsigned long)PALMTX_PCMCIA_VIRT,
    .pfn        = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
    .length     = PALMTX_PCMCIA_SIZE,
    .type       = MT_DEVICE,
}, {
    .virtual    = (unsigned long)PALMTX_NAND_ALE_VIRT,
    .pfn        = __phys_to_pfn(PALMTX_NAND_ALE_PHYS),
    .length     = SZ_1M,
    .type       = MT_DEVICE,
}, {
    .virtual    = (unsigned long)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")
    .atag_offset    = 0x100,
    .map_io     = palmtx_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq   = pxa27x_init_irq,
    .handle_irq = pxa27x_handle_irq,
    .timer      = &pxa_timer,
    .init_machine   = palmtx_init,
    .restart    = pxa_restart,
MACHINE_END