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
  28 #include <mach/hardware.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <plat/led.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 const unsigned int palmtt_keymap[] = {
  55         KEY(0, 0, KEY_ESC),
  56         KEY(1, 0, KEY_SPACE),
  57         KEY(2, 0, KEY_LEFTCTRL),
  58         KEY(3, 0, KEY_TAB),
  59         KEY(4, 0, KEY_ENTER),
  60         KEY(0, 1, KEY_LEFT),
  61         KEY(1, 1, KEY_DOWN),
  62         KEY(2, 1, KEY_UP),
  63         KEY(3, 1, KEY_RIGHT),
  64         KEY(0, 2, KEY_SLEEP),
  65         KEY(4, 2, KEY_Y),
  66 };
  67
  68 static struct mtd_partition palmtt_partitions[] = {
  69         {
  70                 .name           = "write8k",
  71                 .offset         = 0,
  72                 .size           = SZ_8K,
  73                 .mask_flags     = 0,
  74         },
  75         {
  76                 .name           = "PalmOS-BootLoader(ro)",
  77                 .offset         = SZ_8K,
  78                 .size           = 7 * SZ_8K,
  79                 .mask_flags     = MTD_WRITEABLE,
  80         },
  81         {
  82                 .name           = "u-boot",
  83                 .offset         = MTDPART_OFS_APPEND,
  84                 .size           = 8 * SZ_8K,
  85                 .mask_flags     = 0,
  86         },
  87         {
  88                 .name           = "PalmOS-FS(ro)",
  89                 .offset         = MTDPART_OFS_APPEND,
  90                 .size           = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
  91                 .mask_flags     = MTD_WRITEABLE,
  92         },
  93         {
  94                 .name           = "u-boot(rez)",
  95                 .offset         = MTDPART_OFS_APPEND,
  96                 .size           = SZ_128K,
  97                 .mask_flags     = 0
  98         },
  99         {
 100                 .name           = "empty",
 101                 .offset         = MTDPART_OFS_APPEND,
 102                 .size           = MTDPART_SIZ_FULL,
 103                 .mask_flags     = 0
 104         }
 105 };
 106
 107 static struct physmap_flash_data palmtt_flash_data = {
 108         .width          = 2,
 109         .set_vpp        = omap1_set_vpp,
 110         .parts          = palmtt_partitions,
 111         .nr_parts       = ARRAY_SIZE(palmtt_partitions),
 112 };
 113
 114 static struct resource palmtt_flash_resource = {
 115         .start          = OMAP_CS0_PHYS,
 116         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 117         .flags          = IORESOURCE_MEM,
 118 };
 119
 120 static struct platform_device palmtt_flash_device = {
 121         .name           = "physmap-flash",
 122         .id             = 0,
 123         .dev            = {
 124                 .platform_data  = &palmtt_flash_data,
 125         },
 126         .num_resources  = 1,
 127         .resource       = &palmtt_flash_resource,
 128 };
 129
 130 static struct resource palmtt_kp_resources[] = {
 131         [0] = {
 132                 .start  = INT_KEYBOARD,
 133                 .end    = INT_KEYBOARD,
 134                 .flags  = IORESOURCE_IRQ,
 135         },
 136 };
 137
 138 static const struct matrix_keymap_data palmtt_keymap_data = {
 139         .keymap         = palmtt_keymap,
 140         .keymap_size    = ARRAY_SIZE(palmtt_keymap),
 141 };
 142
 143 static struct omap_kp_platform_data palmtt_kp_data = {
 144         .rows   = 6,
 145         .cols   = 3,
 146         .keymap_data = &palmtt_keymap_data,
 147 };
 148
 149 static struct platform_device palmtt_kp_device = {
 150         .name           = "omap-keypad",
 151         .id             = -1,
 152         .dev            = {
 153                 .platform_data = &palmtt_kp_data,
 154         },
 155         .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
 156         .resource       = palmtt_kp_resources,
 157 };
 158
 159 static struct platform_device palmtt_lcd_device = {
 160         .name           = "lcd_palmtt",
 161         .id             = -1,
 162 };
 163 static struct omap_irda_config palmtt_irda_config = {
 164         .transceiver_cap        = IR_SIRMODE,
 165         .rx_channel             = OMAP_DMA_UART3_RX,
 166         .tx_channel             = OMAP_DMA_UART3_TX,
 167         .dest_start             = UART3_THR,
 168         .src_start              = UART3_RHR,
 169         .tx_trigger             = 0,
 170         .rx_trigger             = 0,
 171 };
 172
 173 static struct resource palmtt_irda_resources[] = {
 174         [0]     = {
 175                 .start  = INT_UART3,
 176                 .end    = INT_UART3,
 177                 .flags  = IORESOURCE_IRQ,
 178         },
 179 };
 180
 181 static struct platform_device palmtt_irda_device = {
 182         .name           = "omapirda",
 183         .id             = -1,
 184         .dev            = {
 185                 .platform_data  = &palmtt_irda_config,
 186         },
 187         .num_resources  = ARRAY_SIZE(palmtt_irda_resources),
 188         .resource       = palmtt_irda_resources,
 189 };
 190
 191 static struct platform_device palmtt_spi_device = {
 192         .name           = "spi_palmtt",
 193         .id             = -1,
 194 };
 195
 196 static struct omap_backlight_config palmtt_backlight_config = {
 197         .default_intensity      = 0xa0,
 198 };
 199
 200 static struct platform_device palmtt_backlight_device = {
 201         .name           = "omap-bl",
 202         .id             = -1,
 203         .dev            = {
 204                 .platform_data= &palmtt_backlight_config,
 205         },
 206 };
 207
 208 static struct omap_led_config palmtt_led_config[] = {
 209         {
 210                 .cdev   = {
 211                         .name   = "palmtt:led0",
 212                 },
 213                 .gpio   = PALMTT_LED_GPIO,
 214         },
 215 };
 216
 217 static struct omap_led_platform_data palmtt_led_data = {
 218         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 219         .leds           = palmtt_led_config,
 220 };
 221
 222 static struct platform_device palmtt_led_device = {
 223         .name   = "omap-led",
 224         .id     = -1,
 225         .dev    = {
 226                 .platform_data  = &palmtt_led_data,
 227         },
 228 };
 229
 230 static struct platform_device *palmtt_devices[] __initdata = {
 231         &palmtt_flash_device,
 232         &palmtt_kp_device,
 233         &palmtt_lcd_device,
 234         &palmtt_irda_device,
 235         &palmtt_spi_device,
 236         &palmtt_backlight_device,
 237         &palmtt_led_device,
 238 };
 239
 240 static int palmtt_get_pendown_state(void)
 241 {
 242         return !gpio_get_value(6);
 243 }
 244
 245 static const struct ads7846_platform_data palmtt_ts_info = {
 246         .model                  = 7846,
 247         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 248         .x_plate_ohms           = 419,
 249         .y_plate_ohms           = 486,
 250         .get_pendown_state      = palmtt_get_pendown_state,
 251 };
 252
 253 static struct spi_board_info __initdata palmtt_boardinfo[] = {
 254         {
 255                 /* MicroWire (bus 2) CS0 has an ads7846e */
 256                 .modalias       = "ads7846",
 257                 .platform_data  = &palmtt_ts_info,
 258                 .irq            = OMAP_GPIO_IRQ(6),
 259                 .max_speed_hz   = 120000        /* max sample rate at 3V */
 260                                         * 26    /* command + data + overhead */,
 261                 .bus_num        = 2,
 262                 .chip_select    = 0,
 263         }
 264 };
 265
 266 static void __init omap_palmtt_init_irq(void)
 267 {
 268         omap1_init_common_hw();
 269         omap1_init_irq();
 270 }
 271
 272 static struct omap_usb_config palmtt_usb_config __initdata = {
 273         .register_dev   = 1,
 274         .hmc_mode       = 0,
 275         .pins[0]        = 2,
 276 };
 277
 278 static struct omap_lcd_config palmtt_lcd_config __initdata = {
 279         .ctrl_name      = "internal",
 280 };
 281
 282 static struct omap_board_config_kernel palmtt_config[] __initdata = {
 283         { OMAP_TAG_LCD,         &palmtt_lcd_config      },
 284 };
 285
 286 static void __init omap_mpu_wdt_mode(int mode) {
 287         if (mode)
 288                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 289         else {
 290                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 291                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 292         }
 293 }
 294
 295 static void __init omap_palmtt_init(void)
 296 {
 297         /* mux pins for uarts */
 298         omap_cfg_reg(UART1_TX);
 299         omap_cfg_reg(UART1_RTS);
 300         omap_cfg_reg(UART2_TX);
 301         omap_cfg_reg(UART2_RTS);
 302         omap_cfg_reg(UART3_TX);
 303         omap_cfg_reg(UART3_RX);
 304
 305         omap_mpu_wdt_mode(0);
 306
 307         omap_board_config = palmtt_config;
 308         omap_board_config_size = ARRAY_SIZE(palmtt_config);
 309
 310         platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
 311
 312         spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
 313         omap_serial_init();
 314         omap1_usb_init(&palmtt_usb_config);
 315         omap_register_i2c_bus(1, 100, NULL, 0);
 316 }
 317
 318 static void __init omap_palmtt_map_io(void)
 319 {
 320         omap1_map_common_io();
 321 }
 322
 323 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
 324         .atag_offset    = 0x100,
 325         .map_io         = omap_palmtt_map_io,
 326         .reserve        = omap_reserve,
 327         .init_irq       = omap_palmtt_init_irq,
 328         .init_machine   = omap_palmtt_init,
 329         .timer          = &omap1_timer,
 330 MACHINE_END