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
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <plat/led.h>
  36 #include <plat/flash.h>
  37 #include <plat/mux.h>
  38 #include <plat/usb.h>
  39 #include <plat/dma.h>
  40 #include <plat/tc.h>
  41 #include <plat/board.h>
  42 #include <plat/irda.h>
  43 #include <plat/keypad.h>
  44
  45 #include <mach/hardware.h>
  46
  47 #include "common.h"
  48
  49 #define PALMTT_USBDETECT_GPIO   0
  50 #define PALMTT_CABLE_GPIO       1
  51 #define PALMTT_LED_GPIO         3
  52 #define PALMTT_PENIRQ_GPIO      6
  53 #define PALMTT_MMC_WP_GPIO      8
  54 #define PALMTT_HDQ_GPIO         11
  55
  56 static const unsigned int palmtt_keymap[] = {
  57         KEY(0, 0, KEY_ESC),
  58         KEY(1, 0, KEY_SPACE),
  59         KEY(2, 0, KEY_LEFTCTRL),
  60         KEY(3, 0, KEY_TAB),
  61         KEY(4, 0, KEY_ENTER),
  62         KEY(0, 1, KEY_LEFT),
  63         KEY(1, 1, KEY_DOWN),
  64         KEY(2, 1, KEY_UP),
  65         KEY(3, 1, KEY_RIGHT),
  66         KEY(0, 2, KEY_SLEEP),
  67         KEY(4, 2, KEY_Y),
  68 };
  69
  70 static struct mtd_partition palmtt_partitions[] = {
  71         {
  72                 .name           = "write8k",
  73                 .offset         = 0,
  74                 .size           = SZ_8K,
  75                 .mask_flags     = 0,
  76         },
  77         {
  78                 .name           = "PalmOS-BootLoader(ro)",
  79                 .offset         = SZ_8K,
  80                 .size           = 7 * SZ_8K,
  81                 .mask_flags     = MTD_WRITEABLE,
  82         },
  83         {
  84                 .name           = "u-boot",
  85                 .offset         = MTDPART_OFS_APPEND,
  86                 .size           = 8 * SZ_8K,
  87                 .mask_flags     = 0,
  88         },
  89         {
  90                 .name           = "PalmOS-FS(ro)",
  91                 .offset         = MTDPART_OFS_APPEND,
  92                 .size           = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
  93                 .mask_flags     = MTD_WRITEABLE,
  94         },
  95         {
  96                 .name           = "u-boot(rez)",
  97                 .offset         = MTDPART_OFS_APPEND,
  98                 .size           = SZ_128K,
  99                 .mask_flags     = 0
 100         },
 101         {
 102                 .name           = "empty",
 103                 .offset         = MTDPART_OFS_APPEND,
 104                 .size           = MTDPART_SIZ_FULL,
 105                 .mask_flags     = 0
 106         }
 107 };
 108
 109 static struct physmap_flash_data palmtt_flash_data = {
 110         .width          = 2,
 111         .set_vpp        = omap1_set_vpp,
 112         .parts          = palmtt_partitions,
 113         .nr_parts       = ARRAY_SIZE(palmtt_partitions),
 114 };
 115
 116 static struct resource palmtt_flash_resource = {
 117         .start          = OMAP_CS0_PHYS,
 118         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 119         .flags          = IORESOURCE_MEM,
 120 };
 121
 122 static struct platform_device palmtt_flash_device = {
 123         .name           = "physmap-flash",
 124         .id             = 0,
 125         .dev            = {
 126                 .platform_data  = &palmtt_flash_data,
 127         },
 128         .num_resources  = 1,
 129         .resource       = &palmtt_flash_resource,
 130 };
 131
 132 static struct resource palmtt_kp_resources[] = {
 133         [0] = {
 134                 .start  = INT_KEYBOARD,
 135                 .end    = INT_KEYBOARD,
 136                 .flags  = IORESOURCE_IRQ,
 137         },
 138 };
 139
 140 static const struct matrix_keymap_data palmtt_keymap_data = {
 141         .keymap         = palmtt_keymap,
 142         .keymap_size    = ARRAY_SIZE(palmtt_keymap),
 143 };
 144
 145 static struct omap_kp_platform_data palmtt_kp_data = {
 146         .rows   = 6,
 147         .cols   = 3,
 148         .keymap_data = &palmtt_keymap_data,
 149 };
 150
 151 static struct platform_device palmtt_kp_device = {
 152         .name           = "omap-keypad",
 153         .id             = -1,
 154         .dev            = {
 155                 .platform_data = &palmtt_kp_data,
 156         },
 157         .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
 158         .resource       = palmtt_kp_resources,
 159 };
 160
 161 static struct platform_device palmtt_lcd_device = {
 162         .name           = "lcd_palmtt",
 163         .id             = -1,
 164 };
 165 static struct omap_irda_config palmtt_irda_config = {
 166         .transceiver_cap        = IR_SIRMODE,
 167         .rx_channel             = OMAP_DMA_UART3_RX,
 168         .tx_channel             = OMAP_DMA_UART3_TX,
 169         .dest_start             = UART3_THR,
 170         .src_start              = UART3_RHR,
 171         .tx_trigger             = 0,
 172         .rx_trigger             = 0,
 173 };
 174
 175 static struct resource palmtt_irda_resources[] = {
 176         [0]     = {
 177                 .start  = INT_UART3,
 178                 .end    = INT_UART3,
 179                 .flags  = IORESOURCE_IRQ,
 180         },
 181 };
 182
 183 static struct platform_device palmtt_irda_device = {
 184         .name           = "omapirda",
 185         .id             = -1,
 186         .dev            = {
 187                 .platform_data  = &palmtt_irda_config,
 188         },
 189         .num_resources  = ARRAY_SIZE(palmtt_irda_resources),
 190         .resource       = palmtt_irda_resources,
 191 };
 192
 193 static struct platform_device palmtt_spi_device = {
 194         .name           = "spi_palmtt",
 195         .id             = -1,
 196 };
 197
 198 static struct omap_backlight_config palmtt_backlight_config = {
 199         .default_intensity      = 0xa0,
 200 };
 201
 202 static struct platform_device palmtt_backlight_device = {
 203         .name           = "omap-bl",
 204         .id             = -1,
 205         .dev            = {
 206                 .platform_data= &palmtt_backlight_config,
 207         },
 208 };
 209
 210 static struct omap_led_config palmtt_led_config[] = {
 211         {
 212                 .cdev   = {
 213                         .name   = "palmtt:led0",
 214                 },
 215                 .gpio   = PALMTT_LED_GPIO,
 216         },
 217 };
 218
 219 static struct omap_led_platform_data palmtt_led_data = {
 220         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 221         .leds           = palmtt_led_config,
 222 };
 223
 224 static struct platform_device palmtt_led_device = {
 225         .name   = "omap-led",
 226         .id     = -1,
 227         .dev    = {
 228                 .platform_data  = &palmtt_led_data,
 229         },
 230 };
 231
 232 static struct platform_device *palmtt_devices[] __initdata = {
 233         &palmtt_flash_device,
 234         &palmtt_kp_device,
 235         &palmtt_lcd_device,
 236         &palmtt_irda_device,
 237         &palmtt_spi_device,
 238         &palmtt_backlight_device,
 239         &palmtt_led_device,
 240 };
 241
 242 static int palmtt_get_pendown_state(void)
 243 {
 244         return !gpio_get_value(6);
 245 }
 246
 247 static const struct ads7846_platform_data palmtt_ts_info = {
 248         .model                  = 7846,
 249         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 250         .x_plate_ohms           = 419,
 251         .y_plate_ohms           = 486,
 252         .get_pendown_state      = palmtt_get_pendown_state,
 253 };
 254
 255 static struct spi_board_info __initdata palmtt_boardinfo[] = {
 256         {
 257                 /* MicroWire (bus 2) CS0 has an ads7846e */
 258                 .modalias       = "ads7846",
 259                 .platform_data  = &palmtt_ts_info,
 260                 .max_speed_hz   = 120000        /* max sample rate at 3V */
 261                                         * 26    /* command + data + overhead */,
 262                 .bus_num        = 2,
 263                 .chip_select    = 0,
 264         }
 265 };
 266
 267 static struct omap_usb_config palmtt_usb_config __initdata = {
 268         .register_dev   = 1,
 269         .hmc_mode       = 0,
 270         .pins[0]        = 2,
 271 };
 272
 273 static struct omap_lcd_config palmtt_lcd_config __initdata = {
 274         .ctrl_name      = "internal",
 275 };
 276
 277 static void __init omap_mpu_wdt_mode(int mode) {
 278         if (mode)
 279                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 280         else {
 281                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 282                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 283         }
 284 }
 285
 286 static void __init omap_palmtt_init(void)
 287 {
 288         /* mux pins for uarts */
 289         omap_cfg_reg(UART1_TX);
 290         omap_cfg_reg(UART1_RTS);
 291         omap_cfg_reg(UART2_TX);
 292         omap_cfg_reg(UART2_RTS);
 293         omap_cfg_reg(UART3_TX);
 294         omap_cfg_reg(UART3_RX);
 295
 296         omap_mpu_wdt_mode(0);
 297
 298         platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
 299
 300         palmtt_boardinfo[0].irq = gpio_to_irq(6);
 301         spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
 302         omap_serial_init();
 303         omap1_usb_init(&palmtt_usb_config);
 304         omap_register_i2c_bus(1, 100, NULL, 0);
 305
 306         omapfb_set_lcd_config(&palmtt_lcd_config);
 307 }
 308
 309 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
 310         .atag_offset    = 0x100,
 311         .map_io         = omap15xx_map_io,
 312         .init_early     = omap1_init_early,
 313         .reserve        = omap_reserve,
 314         .init_irq       = omap1_init_irq,
 315         .init_machine   = omap_palmtt_init,
 316         .timer          = &omap1_timer,
 317         .restart        = omap1_restart,
 318 MACHINE_END