linux/arch/arm/mach-omap1/board-palmtt.c
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   1/*
   2 * linux/arch/arm/mach-omap1/board-palmtt.c
   3 *
   4 * Modified from board-palmtt2.c
   5 *
   6 * Modified and amended for Palm Tungsten|T
   7 * by Marek Vasut <marek.vasut@gmail.com>
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License version 2 as
  11 * published by the Free Software Foundation.
  12 */
  13
  14#include <linux/delay.h>
  15#include <linux/gpio.h>
  16#include <linux/kernel.h>
  17#include <linux/init.h>
  18#include <linux/platform_device.h>
  19#include <linux/notifier.h>
  20#include <linux/clk.h>
  21#include <linux/input.h>
  22#include <linux/interrupt.h>
  23#include <linux/mtd/mtd.h>
  24#include <linux/mtd/partitions.h>
  25#include <linux/mtd/physmap.h>
  26#include <linux/leds.h>
  27#include <linux/omapfb.h>
  28#include <linux/spi/spi.h>
  29#include <linux/spi/ads7846.h>
  30#include <linux/platform_data/omap1_bl.h>
  31#include <linux/platform_data/leds-omap.h>
  32
  33#include <asm/mach-types.h>
  34#include <asm/mach/arch.h>
  35#include <asm/mach/map.h>
  36
  37#include "flash.h"
  38#include <mach/mux.h>
  39#include <linux/omap-dma.h>
  40#include <mach/tc.h>
  41#include <linux/platform_data/keypad-omap.h>
  42
  43#include <mach/hardware.h>
  44#include <mach/usb.h>
  45
  46#include "common.h"
  47
  48#define PALMTT_USBDETECT_GPIO   0
  49#define PALMTT_CABLE_GPIO       1
  50#define PALMTT_LED_GPIO         3
  51#define PALMTT_PENIRQ_GPIO      6
  52#define PALMTT_MMC_WP_GPIO      8
  53#define PALMTT_HDQ_GPIO         11
  54
  55static const unsigned int palmtt_keymap[] = {
  56        KEY(0, 0, KEY_ESC),
  57        KEY(1, 0, KEY_SPACE),
  58        KEY(2, 0, KEY_LEFTCTRL),
  59        KEY(3, 0, KEY_TAB),
  60        KEY(4, 0, KEY_ENTER),
  61        KEY(0, 1, KEY_LEFT),
  62        KEY(1, 1, KEY_DOWN),
  63        KEY(2, 1, KEY_UP),
  64        KEY(3, 1, KEY_RIGHT),
  65        KEY(0, 2, KEY_SLEEP),
  66        KEY(4, 2, KEY_Y),
  67};
  68
  69static struct mtd_partition palmtt_partitions[] = {
  70        {
  71                .name           = "write8k",
  72                .offset         = 0,
  73                .size           = SZ_8K,
  74                .mask_flags     = 0,
  75        },
  76        {
  77                .name           = "PalmOS-BootLoader(ro)",
  78                .offset         = SZ_8K,
  79                .size           = 7 * SZ_8K,
  80                .mask_flags     = MTD_WRITEABLE,
  81        },
  82        {
  83                .name           = "u-boot",
  84                .offset         = MTDPART_OFS_APPEND,
  85                .size           = 8 * SZ_8K,
  86                .mask_flags     = 0,
  87        },
  88        {
  89                .name           = "PalmOS-FS(ro)",
  90                .offset         = MTDPART_OFS_APPEND,
  91                .size           = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
  92                .mask_flags     = MTD_WRITEABLE,
  93        },
  94        {
  95                .name           = "u-boot(rez)",
  96                .offset         = MTDPART_OFS_APPEND,
  97                .size           = SZ_128K,
  98                .mask_flags     = 0
  99        },
 100        {
 101                .name           = "empty",
 102                .offset         = MTDPART_OFS_APPEND,
 103                .size           = MTDPART_SIZ_FULL,
 104                .mask_flags     = 0
 105        }
 106};
 107
 108static struct physmap_flash_data palmtt_flash_data = {
 109        .width          = 2,
 110        .set_vpp        = omap1_set_vpp,
 111        .parts          = palmtt_partitions,
 112        .nr_parts       = ARRAY_SIZE(palmtt_partitions),
 113};
 114
 115static struct resource palmtt_flash_resource = {
 116        .start          = OMAP_CS0_PHYS,
 117        .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 118        .flags          = IORESOURCE_MEM,
 119};
 120
 121static struct platform_device palmtt_flash_device = {
 122        .name           = "physmap-flash",
 123        .id             = 0,
 124        .dev            = {
 125                .platform_data  = &palmtt_flash_data,
 126        },
 127        .num_resources  = 1,
 128        .resource       = &palmtt_flash_resource,
 129};
 130
 131static struct resource palmtt_kp_resources[] = {
 132        [0] = {
 133                .start  = INT_KEYBOARD,
 134                .end    = INT_KEYBOARD,
 135                .flags  = IORESOURCE_IRQ,
 136        },
 137};
 138
 139static const struct matrix_keymap_data palmtt_keymap_data = {
 140        .keymap         = palmtt_keymap,
 141        .keymap_size    = ARRAY_SIZE(palmtt_keymap),
 142};
 143
 144static struct omap_kp_platform_data palmtt_kp_data = {
 145        .rows   = 6,
 146        .cols   = 3,
 147        .keymap_data = &palmtt_keymap_data,
 148};
 149
 150static struct platform_device palmtt_kp_device = {
 151        .name           = "omap-keypad",
 152        .id             = -1,
 153        .dev            = {
 154                .platform_data = &palmtt_kp_data,
 155        },
 156        .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
 157        .resource       = palmtt_kp_resources,
 158};
 159
 160static struct platform_device palmtt_lcd_device = {
 161        .name           = "lcd_palmtt",
 162        .id             = -1,
 163};
 164
 165static struct platform_device palmtt_spi_device = {
 166        .name           = "spi_palmtt",
 167        .id             = -1,
 168};
 169
 170static struct omap_backlight_config palmtt_backlight_config = {
 171        .default_intensity      = 0xa0,
 172};
 173
 174static struct platform_device palmtt_backlight_device = {
 175        .name           = "omap-bl",
 176        .id             = -1,
 177        .dev            = {
 178                .platform_data= &palmtt_backlight_config,
 179        },
 180};
 181
 182static struct omap_led_config palmtt_led_config[] = {
 183        {
 184                .cdev   = {
 185                        .name   = "palmtt:led0",
 186                },
 187                .gpio   = PALMTT_LED_GPIO,
 188        },
 189};
 190
 191static struct omap_led_platform_data palmtt_led_data = {
 192        .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 193        .leds           = palmtt_led_config,
 194};
 195
 196static struct platform_device palmtt_led_device = {
 197        .name   = "omap-led",
 198        .id     = -1,
 199        .dev    = {
 200                .platform_data  = &palmtt_led_data,
 201        },
 202};
 203
 204static struct platform_device *palmtt_devices[] __initdata = {
 205        &palmtt_flash_device,
 206        &palmtt_kp_device,
 207        &palmtt_lcd_device,
 208        &palmtt_spi_device,
 209        &palmtt_backlight_device,
 210        &palmtt_led_device,
 211};
 212
 213static int palmtt_get_pendown_state(void)
 214{
 215        return !gpio_get_value(6);
 216}
 217
 218static const struct ads7846_platform_data palmtt_ts_info = {
 219        .model                  = 7846,
 220        .vref_delay_usecs       = 100,  /* internal, no capacitor */
 221        .x_plate_ohms           = 419,
 222        .y_plate_ohms           = 486,
 223        .get_pendown_state      = palmtt_get_pendown_state,
 224};
 225
 226static struct spi_board_info __initdata palmtt_boardinfo[] = {
 227        {
 228                /* MicroWire (bus 2) CS0 has an ads7846e */
 229                .modalias       = "ads7846",
 230                .platform_data  = &palmtt_ts_info,
 231                .max_speed_hz   = 120000        /* max sample rate at 3V */
 232                                        * 26    /* command + data + overhead */,
 233                .bus_num        = 2,
 234                .chip_select    = 0,
 235        }
 236};
 237
 238static struct omap_usb_config palmtt_usb_config __initdata = {
 239        .register_dev   = 1,
 240        .hmc_mode       = 0,
 241        .pins[0]        = 2,
 242};
 243
 244static struct omap_lcd_config palmtt_lcd_config __initdata = {
 245        .ctrl_name      = "internal",
 246};
 247
 248static void __init omap_mpu_wdt_mode(int mode) {
 249        if (mode)
 250                omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 251        else {
 252                omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 253                omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 254        }
 255}
 256
 257static void __init omap_palmtt_init(void)
 258{
 259        /* mux pins for uarts */
 260        omap_cfg_reg(UART1_TX);
 261        omap_cfg_reg(UART1_RTS);
 262        omap_cfg_reg(UART2_TX);
 263        omap_cfg_reg(UART2_RTS);
 264        omap_cfg_reg(UART3_TX);
 265        omap_cfg_reg(UART3_RX);
 266
 267        omap_mpu_wdt_mode(0);
 268
 269        platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
 270
 271        palmtt_boardinfo[0].irq = gpio_to_irq(6);
 272        spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
 273        omap_serial_init();
 274        omap1_usb_init(&palmtt_usb_config);
 275        omap_register_i2c_bus(1, 100, NULL, 0);
 276
 277        omapfb_set_lcd_config(&palmtt_lcd_config);
 278}
 279
 280MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
 281        .atag_offset    = 0x100,
 282        .map_io         = omap15xx_map_io,
 283        .init_early     = omap1_init_early,
 284        .init_irq       = omap1_init_irq,
 285        .handle_irq     = omap1_handle_irq,
 286        .init_machine   = omap_palmtt_init,
 287        .init_late      = omap1_init_late,
 288        .init_time      = omap1_timer_init,
 289        .restart        = omap1_restart,
 290MACHINE_END
 291