arch/arm/mach-omap1/board-palmtt.c

   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
  55 static 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
  69 static 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
 108 static 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
 115 static struct resource palmtt_flash_resource = {
 116         .start          = OMAP_CS0_PHYS,
 117         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 118         .flags          = IORESOURCE_MEM,
 119 };
 120
 121 static 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
 131 static struct resource palmtt_kp_resources[] = {
 132         [0] = {
 133                 .start  = INT_KEYBOARD,
 134                 .end    = INT_KEYBOARD,
 135                 .flags  = IORESOURCE_IRQ,
 136         },
 137 };
 138
 139 static const struct matrix_keymap_data palmtt_keymap_data = {
 140         .keymap         = palmtt_keymap,
 141         .keymap_size    = ARRAY_SIZE(palmtt_keymap),
 142 };
 143
 144 static struct omap_kp_platform_data palmtt_kp_data = {
 145         .rows   = 6,
 146         .cols   = 3,
 147         .keymap_data = &palmtt_keymap_data,
 148 };
 149
 150 static 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
 160 static struct platform_device palmtt_lcd_device = {
 161         .name           = "lcd_palmtt",
 162         .id             = -1,
 163 };
 164
 165 static struct platform_device palmtt_spi_device = {
 166         .name           = "spi_palmtt",
 167         .id             = -1,
 168 };
 169
 170 static struct omap_backlight_config palmtt_backlight_config = {
 171         .default_intensity      = 0xa0,
 172 };
 173
 174 static struct platform_device palmtt_backlight_device = {
 175         .name           = "omap-bl",
 176         .id             = -1,
 177         .dev            = {
 178                 .platform_data= &palmtt_backlight_config,
 179         },
 180 };
 181
 182 static struct omap_led_config palmtt_led_config[] = {
 183         {
 184                 .cdev   = {
 185                         .name   = "palmtt:led0",
 186                 },
 187                 .gpio   = PALMTT_LED_GPIO,
 188         },
 189 };
 190
 191 static struct omap_led_platform_data palmtt_led_data = {
 192         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 193         .leds           = palmtt_led_config,
 194 };
 195
 196 static struct platform_device palmtt_led_device = {
 197         .name   = "omap-led",
 198         .id     = -1,
 199         .dev    = {
 200                 .platform_data  = &palmtt_led_data,
 201         },
 202 };
 203
 204 static 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
 213 static int palmtt_get_pendown_state(void)
 214 {
 215         return !gpio_get_value(6);
 216 }
 217
 218 static 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
 226 static 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
 238 static struct omap_usb_config palmtt_usb_config __initdata = {
 239         .register_dev   = 1,
 240         .hmc_mode       = 0,
 241         .pins[0]        = 2,
 242 };
 243
 244 static struct omap_lcd_config palmtt_lcd_config __initdata = {
 245         .ctrl_name      = "internal",
 246 };
 247
 248 static 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
 257 static 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
 280 MACHINE_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,
 290 MACHINE_END