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/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/notifier.h>
  19 #include <linux/clk.h>
  20 #include <linux/input.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/leds.h>
  26
  27 #include <mach/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31
  32 #include <plat/led.h>
  33 #include <mach/gpio.h>
  34 #include <plat/flash.h>
  35 #include <plat/mux.h>
  36 #include <plat/usb.h>
  37 #include <plat/dma.h>
  38 #include <plat/tc.h>
  39 #include <plat/board.h>
  40 #include <plat/irda.h>
  41 #include <plat/keypad.h>
  42 #include <plat/common.h>
  43
  44 #include <linux/spi/spi.h>
  45 #include <linux/spi/ads7846.h>
  46
  47 #define PALMTT_USBDETECT_GPIO   0
  48 #define PALMTT_CABLE_GPIO       1
  49 #define PALMTT_LED_GPIO         3
  50 #define PALMTT_PENIRQ_GPIO      6
  51 #define PALMTT_MMC_WP_GPIO      8
  52 #define PALMTT_HDQ_GPIO         11
  53
  54 static int palmtt_keymap[] = {
  55         KEY(0, 0, KEY_ESC),
  56         KEY(0, 1, KEY_SPACE),
  57         KEY(0, 2, KEY_LEFTCTRL),
  58         KEY(0, 3, KEY_TAB),
  59         KEY(0, 4, KEY_ENTER),
  60         KEY(1, 0, KEY_LEFT),
  61         KEY(1, 1, KEY_DOWN),
  62         KEY(1, 2, KEY_UP),
  63         KEY(1, 3, KEY_RIGHT),
  64         KEY(2, 0, KEY_SLEEP),
  65         KEY(2, 4, KEY_Y),
  66         0
  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 struct omap_kp_platform_data palmtt_kp_data = {
 140         .rows   = 6,
 141         .cols   = 3,
 142         .keymap = palmtt_keymap,
 143 };
 144
 145 static struct platform_device palmtt_kp_device = {
 146         .name           = "omap-keypad",
 147         .id             = -1,
 148         .dev            = {
 149                 .platform_data = &palmtt_kp_data,
 150         },
 151         .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
 152         .resource       = palmtt_kp_resources,
 153 };
 154
 155 static struct platform_device palmtt_lcd_device = {
 156         .name           = "lcd_palmtt",
 157         .id             = -1,
 158 };
 159 static struct omap_irda_config palmtt_irda_config = {
 160         .transceiver_cap        = IR_SIRMODE,
 161         .rx_channel             = OMAP_DMA_UART3_RX,
 162         .tx_channel             = OMAP_DMA_UART3_TX,
 163         .dest_start             = UART3_THR,
 164         .src_start              = UART3_RHR,
 165         .tx_trigger             = 0,
 166         .rx_trigger             = 0,
 167 };
 168
 169 static struct resource palmtt_irda_resources[] = {
 170         [0]     = {
 171                 .start  = INT_UART3,
 172                 .end    = INT_UART3,
 173                 .flags  = IORESOURCE_IRQ,
 174         },
 175 };
 176
 177 static struct platform_device palmtt_irda_device = {
 178         .name           = "omapirda",
 179         .id             = -1,
 180         .dev            = {
 181                 .platform_data  = &palmtt_irda_config,
 182         },
 183         .num_resources  = ARRAY_SIZE(palmtt_irda_resources),
 184         .resource       = palmtt_irda_resources,
 185 };
 186
 187 static struct platform_device palmtt_spi_device = {
 188         .name           = "spi_palmtt",
 189         .id             = -1,
 190 };
 191
 192 static struct omap_backlight_config palmtt_backlight_config = {
 193         .default_intensity      = 0xa0,
 194 };
 195
 196 static struct platform_device palmtt_backlight_device = {
 197         .name           = "omap-bl",
 198         .id             = -1,
 199         .dev            = {
 200                 .platform_data= &palmtt_backlight_config,
 201         },
 202 };
 203
 204 static struct omap_led_config palmtt_led_config[] = {
 205         {
 206                 .cdev   = {
 207                         .name   = "palmtt:led0",
 208                 },
 209                 .gpio   = PALMTT_LED_GPIO,
 210         },
 211 };
 212
 213 static struct omap_led_platform_data palmtt_led_data = {
 214         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 215         .leds           = palmtt_led_config,
 216 };
 217
 218 static struct platform_device palmtt_led_device = {
 219         .name   = "omap-led",
 220         .id     = -1,
 221         .dev    = {
 222                 .platform_data  = &palmtt_led_data,
 223         },
 224 };
 225
 226 static struct platform_device *palmtt_devices[] __initdata = {
 227         &palmtt_flash_device,
 228         &palmtt_kp_device,
 229         &palmtt_lcd_device,
 230         &palmtt_irda_device,
 231         &palmtt_spi_device,
 232         &palmtt_backlight_device,
 233         &palmtt_led_device,
 234 };
 235
 236 static int palmtt_get_pendown_state(void)
 237 {
 238         return !gpio_get_value(6);
 239 }
 240
 241 static const struct ads7846_platform_data palmtt_ts_info = {
 242         .model                  = 7846,
 243         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 244         .x_plate_ohms           = 419,
 245         .y_plate_ohms           = 486,
 246         .get_pendown_state      = palmtt_get_pendown_state,
 247 };
 248
 249 static struct spi_board_info __initdata palmtt_boardinfo[] = {
 250         {
 251                 /* MicroWire (bus 2) CS0 has an ads7846e */
 252                 .modalias       = "ads7846",
 253                 .platform_data  = &palmtt_ts_info,
 254                 .irq            = OMAP_GPIO_IRQ(6),
 255                 .max_speed_hz   = 120000        /* max sample rate at 3V */
 256                                         * 26    /* command + data + overhead */,
 257                 .bus_num        = 2,
 258                 .chip_select    = 0,
 259         }
 260 };
 261
 262 static void __init omap_palmtt_init_irq(void)
 263 {
 264         omap1_init_common_hw();
 265         omap_init_irq();
 266 }
 267
 268 static struct omap_usb_config palmtt_usb_config __initdata = {
 269         .register_dev   = 1,
 270         .hmc_mode       = 0,
 271         .pins[0]        = 2,
 272 };
 273
 274 static struct omap_lcd_config palmtt_lcd_config __initdata = {
 275         .ctrl_name      = "internal",
 276 };
 277
 278 static struct omap_board_config_kernel palmtt_config[] __initdata = {
 279         { OMAP_TAG_LCD,         &palmtt_lcd_config      },
 280 };
 281
 282 static void __init omap_mpu_wdt_mode(int mode) {
 283         if (mode)
 284                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 285         else {
 286                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 287                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 288         }
 289 }
 290
 291 static void __init omap_palmtt_init(void)
 292 {
 293         /* mux pins for uarts */
 294         omap_cfg_reg(UART1_TX);
 295         omap_cfg_reg(UART1_RTS);
 296         omap_cfg_reg(UART2_TX);
 297         omap_cfg_reg(UART2_RTS);
 298         omap_cfg_reg(UART3_TX);
 299         omap_cfg_reg(UART3_RX);
 300
 301         omap_mpu_wdt_mode(0);
 302
 303         omap_board_config = palmtt_config;
 304         omap_board_config_size = ARRAY_SIZE(palmtt_config);
 305
 306         platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
 307
 308         spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
 309         omap_serial_init();
 310         omap1_usb_init(&palmtt_usb_config);
 311         omap_register_i2c_bus(1, 100, NULL, 0);
 312 }
 313
 314 static void __init omap_palmtt_map_io(void)
 315 {
 316         omap1_map_common_io();
 317 }
 318
 319 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
 320         .boot_params    = 0x10000100,
 321         .map_io         = omap_palmtt_map_io,
 322         .reserve        = omap_reserve,
 323         .init_irq       = omap_palmtt_init_irq,
 324         .init_machine   = omap_palmtt_init,
 325         .timer          = &omap_timer,
 326 MACHINE_END