board-palmte.c

Go to the documentation of this file.

/*
 * linux/arch/arm/mach-omap1/board-palmte.c
 *
 * Modified from board-generic.c
 *
 * Support for the Palm Tungsten E PDA.
 *
 * Original version : Laurent Gonzalez
 *
 * Maintainers : http://palmtelinux.sf.net
 *                [email protected]
 *
 * Copyright (c) 2006 Andrzej Zaborowski  <[email protected]>
 *
 * 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/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
#include <linux/interrupt.h>
#include <linux/apm-emulation.h>
#include <linux/omapfb.h>
#include <linux/platform_data/omap1_bl.h>

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

#include <mach/flash.h>
#include <mach/mux.h>
#include <plat/tc.h>
#include <plat/dma.h>
#include <mach/irda.h>
#include <linux/platform_data/keypad-omap.h>

#include <mach/hardware.h>
#include <mach/usb.h>

#include "common.h"

#define PALMTE_USBDETECT_GPIO   0
#define PALMTE_USB_OR_DC_GPIO   1
#define PALMTE_TSC_GPIO     4
#define PALMTE_PINTDAV_GPIO 6
#define PALMTE_MMC_WP_GPIO  8
#define PALMTE_MMC_POWER_GPIO   9
#define PALMTE_HDQ_GPIO     11
#define PALMTE_HEADPHONES_GPIO  14
#define PALMTE_SPEAKER_GPIO 15
#define PALMTE_DC_GPIO      OMAP_MPUIO(2)
#define PALMTE_MMC_SWITCH_GPIO  OMAP_MPUIO(4)
#define PALMTE_MMC1_GPIO    OMAP_MPUIO(6)
#define PALMTE_MMC2_GPIO    OMAP_MPUIO(7)
#define PALMTE_MMC3_GPIO    OMAP_MPUIO(11)

static const unsigned int palmte_keymap[] = {
    KEY(0, 0, KEY_F1),      /* Calendar */
    KEY(1, 0, KEY_F2),      /* Contacts */
    KEY(2, 0, KEY_F3),      /* Tasks List */
    KEY(3, 0, KEY_F4),      /* Note Pad */
    KEY(4, 0, KEY_POWER),
    KEY(0, 1, KEY_LEFT),
    KEY(1, 1, KEY_DOWN),
    KEY(2, 1, KEY_UP),
    KEY(3, 1, KEY_RIGHT),
    KEY(4, 1, KEY_ENTER),
};

static const struct matrix_keymap_data palmte_keymap_data = {
    .keymap     = palmte_keymap,
    .keymap_size    = ARRAY_SIZE(palmte_keymap),
};

static struct omap_kp_platform_data palmte_kp_data = {
    .rows   = 8,
    .cols   = 8,
    .keymap_data = &palmte_keymap_data,
    .rep    = true,
    .delay  = 12,
};

static struct resource palmte_kp_resources[] = {
    [0] = {
        .start  = INT_KEYBOARD,
        .end    = INT_KEYBOARD,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device palmte_kp_device = {
    .name       = "omap-keypad",
    .id     = -1,
    .dev        = {
        .platform_data  = &palmte_kp_data,
    },
    .num_resources  = ARRAY_SIZE(palmte_kp_resources),
    .resource   = palmte_kp_resources,
};

static struct mtd_partition palmte_rom_partitions[] = {
    /* PalmOS "Small ROM", contains the bootloader and the debugger */
    {
        .name       = "smallrom",
        .offset     = 0,
        .size       = 0xa000,
        .mask_flags = MTD_WRITEABLE,
    },
    /* PalmOS "Big ROM", a filesystem with all the OS code and data */
    {
        .name       = "bigrom",
        .offset     = SZ_128K,
        /*
         * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
         * 0x7b0000 bytes in the English-only ("enUS") version.
         */
        .size       = 0x7b0000,
        .mask_flags = MTD_WRITEABLE,
    },
};

static struct physmap_flash_data palmte_rom_data = {
    .width      = 2,
    .set_vpp    = omap1_set_vpp,
    .parts      = palmte_rom_partitions,
    .nr_parts   = ARRAY_SIZE(palmte_rom_partitions),
};

static struct resource palmte_rom_resource = {
    .start      = OMAP_CS0_PHYS,
    .end        = OMAP_CS0_PHYS + SZ_8M - 1,
    .flags      = IORESOURCE_MEM,
};

static struct platform_device palmte_rom_device = {
    .name       = "physmap-flash",
    .id     = -1,
    .dev        = {
        .platform_data  = &palmte_rom_data,
    },
    .num_resources  = 1,
    .resource   = &palmte_rom_resource,
};

static struct platform_device palmte_lcd_device = {
    .name       = "lcd_palmte",
    .id     = -1,
};

static struct omap_backlight_config palmte_backlight_config = {
    .default_intensity  = 0xa0,
};

static struct platform_device palmte_backlight_device = {
    .name       = "omap-bl",
    .id     = -1,
    .dev        = {
        .platform_data  = &palmte_backlight_config,
    },
};

static struct omap_irda_config palmte_irda_config = {
    .transceiver_cap    = IR_SIRMODE,
    .rx_channel     = OMAP_DMA_UART3_RX,
    .tx_channel     = OMAP_DMA_UART3_TX,
    .dest_start     = UART3_THR,
    .src_start      = UART3_RHR,
    .tx_trigger     = 0,
    .rx_trigger     = 0,
};

static struct resource palmte_irda_resources[] = {
    [0] = {
        .start  = INT_UART3,
        .end    = INT_UART3,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device palmte_irda_device = {
    .name       = "omapirda",
    .id     = -1,
    .dev        = {
        .platform_data  = &palmte_irda_config,
    },
    .num_resources  = ARRAY_SIZE(palmte_irda_resources),
    .resource   = palmte_irda_resources,
};

static struct platform_device *palmte_devices[] __initdata = {
    &palmte_rom_device,
    &palmte_kp_device,
    &palmte_lcd_device,
    &palmte_backlight_device,
    &palmte_irda_device,
};

static struct omap_usb_config palmte_usb_config __initdata = {
    .register_dev   = 1,    /* Mini-B only receptacle */
    .hmc_mode   = 0,
    .pins[0]    = 2,
};

static struct omap_lcd_config palmte_lcd_config __initdata = {
    .ctrl_name  = "internal",
};

static struct spi_board_info palmte_spi_info[] __initdata = {
    {
        .modalias   = "tsc2102",
        .bus_num    = 2,    /* uWire (officially) */
        .chip_select    = 0,    /* As opposed to 3 */
        .max_speed_hz   = 8000000,
    },
};

static void __init palmte_misc_gpio_setup(void)
{
    /* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
    if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
        printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
        return;
    }
    gpio_direction_input(PALMTE_PINTDAV_GPIO);

    /* Set USB-or-DC-IN pin as input (unused) */
    if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
        printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
        return;
    }
    gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
}

static void __init omap_palmte_init(void)
{
    /* mux pins for uarts */
    omap_cfg_reg(UART1_TX);
    omap_cfg_reg(UART1_RTS);
    omap_cfg_reg(UART2_TX);
    omap_cfg_reg(UART2_RTS);
    omap_cfg_reg(UART3_TX);
    omap_cfg_reg(UART3_RX);

    platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));

    palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
    spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
    palmte_misc_gpio_setup();
    omap_serial_init();
    omap1_usb_init(&palmte_usb_config);
    omap_register_i2c_bus(1, 100, NULL, 0);

    omapfb_set_lcd_config(&palmte_lcd_config);
}

MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
    .atag_offset    = 0x100,
    .map_io     = omap15xx_map_io,
    .init_early     = omap1_init_early,
    .reserve    = omap_reserve,
    .init_irq   = omap1_init_irq,
    .init_machine   = omap_palmte_init,
    .init_late  = omap1_init_late,
    .timer      = &omap1_timer,
    .restart    = omap1_restart,
MACHINE_END