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/leds.h>
  25
  26 #include <mach/hardware.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30 #include <asm/mach/flash.h>
  31
  32 #include <mach/led.h>
  33 #include <mach/gpio.h>
  34 #include <mach/mux.h>
  35 #include <mach/usb.h>
  36 #include <mach/dma.h>
  37 #include <mach/tc.h>
  38 #include <mach/board.h>
  39 #include <mach/irda.h>
  40 #include <mach/keypad.h>
  41 #include <mach/common.h>
  42
  43 #include <linux/spi/spi.h>
  44 #include <linux/spi/ads7846.h>
  45
  46 static int palmtt_keymap[] = {
  47         KEY(0, 0, KEY_ESC),
  48         KEY(0, 1, KEY_SPACE),
  49         KEY(0, 2, KEY_LEFTCTRL),
  50         KEY(0, 3, KEY_TAB),
  51         KEY(0, 4, KEY_ENTER),
  52         KEY(1, 0, KEY_LEFT),
  53         KEY(1, 1, KEY_DOWN),
  54         KEY(1, 2, KEY_UP),
  55         KEY(1, 3, KEY_RIGHT),
  56         KEY(2, 0, KEY_SLEEP),
  57         KEY(2, 4, KEY_Y),
  58         0
  59 };
  60
  61 static struct mtd_partition palmtt_partitions[] = {
  62         {
  63                 .name           = "write8k",
  64                 .offset         = 0,
  65                 .size           = SZ_8K,
  66                 .mask_flags     = 0,
  67         },
  68         {
  69                 .name           = "PalmOS-BootLoader(ro)",
  70                 .offset         = SZ_8K,
  71                 .size           = 7 * SZ_8K,
  72                 .mask_flags     = MTD_WRITEABLE,
  73         },
  74         {
  75                 .name           = "u-boot",
  76                 .offset         = MTDPART_OFS_APPEND,
  77                 .size           = 8 * SZ_8K,
  78                 .mask_flags     = 0,
  79         },
  80         {
  81                 .name           = "PalmOS-FS(ro)",
  82                 .offset         = MTDPART_OFS_APPEND,
  83                 .size           = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
  84                 .mask_flags     = MTD_WRITEABLE,
  85         },
  86         {
  87                 .name           = "u-boot(rez)",
  88                 .offset         = MTDPART_OFS_APPEND,
  89                 .size           = SZ_128K,
  90                 .mask_flags     = 0
  91         },
  92         {
  93                 .name           = "empty",
  94                 .offset         = MTDPART_OFS_APPEND,
  95                 .size           = MTDPART_SIZ_FULL,
  96                 .mask_flags     = 0
  97         }
  98 };
  99
 100 static struct flash_platform_data palmtt_flash_data = {
 101         .map_name       = "cfi_probe",
 102         .width          = 2,
 103         .parts          = palmtt_partitions,
 104         .nr_parts       = ARRAY_SIZE(palmtt_partitions),
 105 };
 106
 107 static struct resource palmtt_flash_resource = {
 108         .start          = OMAP_CS0_PHYS,
 109         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 110         .flags          = IORESOURCE_MEM,
 111 };
 112
 113 static struct platform_device palmtt_flash_device = {
 114         .name           = "omapflash",
 115         .id             = 0,
 116         .dev            = {
 117                 .platform_data  = &palmtt_flash_data,
 118         },
 119         .num_resources  = 1,
 120         .resource       = &palmtt_flash_resource,
 121 };
 122
 123 static struct resource palmtt_kp_resources[] = {
 124         [0] = {
 125                 .start  = INT_KEYBOARD,
 126                 .end    = INT_KEYBOARD,
 127                 .flags  = IORESOURCE_IRQ,
 128         },
 129 };
 130
 131 static struct omap_kp_platform_data palmtt_kp_data = {
 132         .rows   = 6,
 133         .cols   = 3,
 134         .keymap = palmtt_keymap,
 135 };
 136
 137 static struct platform_device palmtt_kp_device = {
 138         .name           = "omap-keypad",
 139         .id             = -1,
 140         .dev            = {
 141                 .platform_data = &palmtt_kp_data,
 142         },
 143         .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
 144         .resource       = palmtt_kp_resources,
 145 };
 146
 147 static struct platform_device palmtt_lcd_device = {
 148         .name           = "lcd_palmtt",
 149         .id             = -1,
 150 };
 151 static struct omap_irda_config palmtt_irda_config = {
 152         .transceiver_cap        = IR_SIRMODE,
 153         .rx_channel             = OMAP_DMA_UART3_RX,
 154         .tx_channel             = OMAP_DMA_UART3_TX,
 155         .dest_start             = UART3_THR,
 156         .src_start              = UART3_RHR,
 157         .tx_trigger             = 0,
 158         .rx_trigger             = 0,
 159 };
 160
 161 static struct resource palmtt_irda_resources[] = {
 162         [0]     = {
 163                 .start  = INT_UART3,
 164                 .end    = INT_UART3,
 165                 .flags  = IORESOURCE_IRQ,
 166         },
 167 };
 168
 169 static struct platform_device palmtt_irda_device = {
 170         .name           = "omapirda",
 171         .id             = -1,
 172         .dev            = {
 173                 .platform_data  = &palmtt_irda_config,
 174         },
 175         .num_resources  = ARRAY_SIZE(palmtt_irda_resources),
 176         .resource       = palmtt_irda_resources,
 177 };
 178
 179 static struct platform_device palmtt_spi_device = {
 180         .name           = "spi_palmtt",
 181         .id             = -1,
 182 };
 183
 184 static struct omap_backlight_config palmtt_backlight_config = {
 185         .default_intensity      = 0xa0,
 186 };
 187
 188 static struct platform_device palmtt_backlight_device = {
 189         .name           = "omap-bl",
 190         .id             = -1,
 191         .dev            = {
 192                 .platform_data= &palmtt_backlight_config,
 193         },
 194 };
 195
 196 static struct omap_led_config palmtt_led_config[] = {
 197         {
 198                 .cdev   = {
 199                         .name   = "palmtt:led0",
 200                 },
 201                 .gpio   = PALMTT_LED_GPIO,
 202         },
 203 };
 204
 205 static struct omap_led_platform_data palmtt_led_data = {
 206         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 207         .leds           = palmtt_led_config,
 208 };
 209
 210 static struct platform_device palmtt_led_device = {
 211         .name   = "omap-led",
 212         .id     = -1,
 213         .dev    = {
 214                 .platform_data  = &palmtt_led_data,
 215         },
 216 };
 217
 218 static struct platform_device *palmtt_devices[] __initdata = {
 219         &palmtt_flash_device,
 220         &palmtt_kp_device,
 221         &palmtt_lcd_device,
 222         &palmtt_irda_device,
 223         &palmtt_spi_device,
 224         &palmtt_backlight_device,
 225         &palmtt_led_device,
 226 };
 227
 228 static int palmtt_get_pendown_state(void)
 229 {
 230         return !gpio_get_value(6);
 231 }
 232
 233 static const struct ads7846_platform_data palmtt_ts_info = {
 234         .model                  = 7846,
 235         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 236         .x_plate_ohms           = 419,
 237         .y_plate_ohms           = 486,
 238         .get_pendown_state      = palmtt_get_pendown_state,
 239 };
 240
 241 static struct spi_board_info __initdata palmtt_boardinfo[] = {
 242         {
 243                 /* MicroWire (bus 2) CS0 has an ads7846e */
 244                 .modalias       = "ads7846",
 245                 .platform_data  = &palmtt_ts_info,
 246                 .irq            = OMAP_GPIO_IRQ(6),
 247                 .max_speed_hz   = 120000        /* max sample rate at 3V */
 248                                         * 26    /* command + data + overhead */,
 249                 .bus_num        = 2,
 250                 .chip_select    = 0,
 251         }
 252 };
 253
 254 static void __init omap_palmtt_init_irq(void)
 255 {
 256         omap1_init_common_hw();
 257         omap_init_irq();
 258 }
 259
 260 static struct omap_usb_config palmtt_usb_config __initdata = {
 261         .register_dev   = 1,
 262         .hmc_mode       = 0,
 263         .pins[0]        = 2,
 264 };
 265
 266 static struct omap_lcd_config palmtt_lcd_config __initdata = {
 267         .ctrl_name      = "internal",
 268 };
 269
 270 static struct omap_uart_config palmtt_uart_config __initdata = {
 271         .enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
 272 };
 273
 274 static struct omap_board_config_kernel palmtt_config[] __initdata = {
 275         { OMAP_TAG_USB,         &palmtt_usb_config      },
 276         { OMAP_TAG_LCD,         &palmtt_lcd_config      },
 277         { OMAP_TAG_UART,        &palmtt_uart_config     },
 278 };
 279
 280 static void __init omap_mpu_wdt_mode(int mode) {
 281         if (mode)
 282                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 283         else {
 284                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 285                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 286         }
 287 }
 288
 289 static void __init omap_palmtt_init(void)
 290 {
 291         omap_mpu_wdt_mode(0);
 292
 293         omap_board_config = palmtt_config;
 294         omap_board_config_size = ARRAY_SIZE(palmtt_config);
 295
 296         platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
 297
 298         spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
 299         omap_serial_init();
 300         omap_register_i2c_bus(1, 100, NULL, 0);
 301 }
 302
 303 static void __init omap_palmtt_map_io(void)
 304 {
 305         omap1_map_common_io();
 306 }
 307
 308 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
 309         .phys_io        = 0xfff00000,
 310         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 311         .boot_params    = 0x10000100,
 312         .map_io         = omap_palmtt_map_io,
 313         .init_irq       = omap_palmtt_init_irq,
 314         .init_machine   = omap_palmtt_init,
 315         .timer          = &omap_timer,
 316 MACHINE_END