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board-palmte.c

/*
 * 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
 *                palmtelinux-developpers@lists.sf.net
 *
 * Copyright (c) 2006 Andrzej Zaborowski  <balrog@zabor.org>
 *
 * 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/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 <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <mach/gpio.h>
#include <plat/flash.h>
#include <plat/mux.h>
#include <plat/usb.h>
#include <plat/tc.h>
#include <plat/dma.h>
#include <plat/board.h>
#include <plat/irda.h>
#include <plat/keypad.h>
#include <plat/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 void __init omap_palmte_init_irq(void)
{
      omap1_init_common_hw();
      omap_init_irq();
}

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 omap_board_config_kernel palmte_config[] __initdata = {
      { OMAP_TAG_LCD,         &palmte_lcd_config },
};

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

static void palmte_headphones_detect(void *data, int state)
{
      if (state) {
            /* Headphones connected, disable speaker */
            gpio_set_value(PALMTE_SPEAKER_GPIO, 0);
            printk(KERN_INFO "PM: speaker off\n");
      } else {
            /* Headphones unplugged, re-enable speaker */
            gpio_set_value(PALMTE_SPEAKER_GPIO, 1);
            printk(KERN_INFO "PM: speaker on\n");
      }
}

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);

      omap_board_config = palmte_config;
      omap_board_config_size = ARRAY_SIZE(palmte_config);

      platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));

      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);
}

static void __init omap_palmte_map_io(void)
{
      omap1_map_common_io();
}

MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
      .boot_params      = 0x10000100,
      .map_io           = omap_palmte_map_io,
      .reserve    = omap_reserve,
      .init_irq   = omap_palmte_init_irq,
      .init_machine     = omap_palmte_init,
      .timer            = &omap_timer,
MACHINE_END

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