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 <mach/flash.h>
  38 #include <mach/mux.h>
  39 #include <linux/omap-dma.h>
  40 #include <mach/tc.h>
  41 #include <mach/irda.h>
  42 #include <linux/platform_data/keypad-omap.h>
  43
  44 #include <mach/hardware.h>
  45 #include <mach/usb.h>
  46
  47 #include "common.h"
  48 #include "dma.h"
  49
  50 #define PALMTT_USBDETECT_GPIO   0
  51 #define PALMTT_CABLE_GPIO       1
  52 #define PALMTT_LED_GPIO         3
  53 #define PALMTT_PENIRQ_GPIO      6
  54 #define PALMTT_MMC_WP_GPIO      8
  55 #define PALMTT_HDQ_GPIO         11
  56
  57 static const unsigned int palmtt_keymap[] = {
  58         KEY(0, 0, KEY_ESC),
  59         KEY(1, 0, KEY_SPACE),
  60         KEY(2, 0, KEY_LEFTCTRL),
  61         KEY(3, 0, KEY_TAB),
  62         KEY(4, 0, KEY_ENTER),
  63         KEY(0, 1, KEY_LEFT),
  64         KEY(1, 1, KEY_DOWN),
  65         KEY(2, 1, KEY_UP),
  66         KEY(3, 1, KEY_RIGHT),
  67         KEY(0, 2, KEY_SLEEP),
  68         KEY(4, 2, KEY_Y),
  69 };
  70
  71 static struct mtd_partition palmtt_partitions[] = {
  72         {
  73                 .name           = "write8k",
  74                 .offset         = 0,
  75                 .size           = SZ_8K,
  76                 .mask_flags     = 0,
  77         },
  78         {
  79                 .name           = "PalmOS-BootLoader(ro)",
  80                 .offset         = SZ_8K,
  81                 .size           = 7 * SZ_8K,
  82                 .mask_flags     = MTD_WRITEABLE,
  83         },
  84         {
  85                 .name           = "u-boot",
  86                 .offset         = MTDPART_OFS_APPEND,
  87                 .size           = 8 * SZ_8K,
  88                 .mask_flags     = 0,
  89         },
  90         {
  91                 .name           = "PalmOS-FS(ro)",
  92                 .offset         = MTDPART_OFS_APPEND,
  93                 .size           = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
  94                 .mask_flags     = MTD_WRITEABLE,
  95         },
  96         {
  97                 .name           = "u-boot(rez)",
  98                 .offset         = MTDPART_OFS_APPEND,
  99                 .size           = SZ_128K,
 100                 .mask_flags     = 0
 101         },
 102         {
 103                 .name           = "empty",
 104                 .offset         = MTDPART_OFS_APPEND,
 105                 .size           = MTDPART_SIZ_FULL,
 106                 .mask_flags     = 0
 107         }
 108 };
 109
 110 static struct physmap_flash_data palmtt_flash_data = {
 111         .width          = 2,
 112         .set_vpp        = omap1_set_vpp,
 113         .parts          = palmtt_partitions,
 114         .nr_parts       = ARRAY_SIZE(palmtt_partitions),
 115 };
 116
 117 static struct resource palmtt_flash_resource = {
 118         .start          = OMAP_CS0_PHYS,
 119         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 120         .flags          = IORESOURCE_MEM,
 121 };
 122
 123 static struct platform_device palmtt_flash_device = {
 124         .name           = "physmap-flash",
 125         .id             = 0,
 126         .dev            = {
 127                 .platform_data  = &palmtt_flash_data,
 128         },
 129         .num_resources  = 1,
 130         .resource       = &palmtt_flash_resource,
 131 };
 132
 133 static struct resource palmtt_kp_resources[] = {
 134         [0] = {
 135                 .start  = INT_KEYBOARD,
 136                 .end    = INT_KEYBOARD,
 137                 .flags  = IORESOURCE_IRQ,
 138         },
 139 };
 140
 141 static const struct matrix_keymap_data palmtt_keymap_data = {
 142         .keymap         = palmtt_keymap,
 143         .keymap_size    = ARRAY_SIZE(palmtt_keymap),
 144 };
 145
 146 static struct omap_kp_platform_data palmtt_kp_data = {
 147         .rows   = 6,
 148         .cols   = 3,
 149         .keymap_data = &palmtt_keymap_data,
 150 };
 151
 152 static struct platform_device palmtt_kp_device = {
 153         .name           = "omap-keypad",
 154         .id             = -1,
 155         .dev            = {
 156                 .platform_data = &palmtt_kp_data,
 157         },
 158         .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
 159         .resource       = palmtt_kp_resources,
 160 };
 161
 162 static struct platform_device palmtt_lcd_device = {
 163         .name           = "lcd_palmtt",
 164         .id             = -1,
 165 };
 166 static struct omap_irda_config palmtt_irda_config = {
 167         .transceiver_cap        = IR_SIRMODE,
 168         .rx_channel             = OMAP_DMA_UART3_RX,
 169         .tx_channel             = OMAP_DMA_UART3_TX,
 170         .dest_start             = UART3_THR,
 171         .src_start              = UART3_RHR,
 172         .tx_trigger             = 0,
 173         .rx_trigger             = 0,
 174 };
 175
 176 static struct resource palmtt_irda_resources[] = {
 177         [0]     = {
 178                 .start  = INT_UART3,
 179                 .end    = INT_UART3,
 180                 .flags  = IORESOURCE_IRQ,
 181         },
 182 };
 183
 184 static struct platform_device palmtt_irda_device = {
 185         .name           = "omapirda",
 186         .id             = -1,
 187         .dev            = {
 188                 .platform_data  = &palmtt_irda_config,
 189         },
 190         .num_resources  = ARRAY_SIZE(palmtt_irda_resources),
 191         .resource       = palmtt_irda_resources,
 192 };
 193
 194 static struct platform_device palmtt_spi_device = {
 195         .name           = "spi_palmtt",
 196         .id             = -1,
 197 };
 198
 199 static struct omap_backlight_config palmtt_backlight_config = {
 200         .default_intensity      = 0xa0,
 201 };
 202
 203 static struct platform_device palmtt_backlight_device = {
 204         .name           = "omap-bl",
 205         .id             = -1,
 206         .dev            = {
 207                 .platform_data= &palmtt_backlight_config,
 208         },
 209 };
 210
 211 static struct omap_led_config palmtt_led_config[] = {
 212         {
 213                 .cdev   = {
 214                         .name   = "palmtt:led0",
 215                 },
 216                 .gpio   = PALMTT_LED_GPIO,
 217         },
 218 };
 219
 220 static struct omap_led_platform_data palmtt_led_data = {
 221         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 222         .leds           = palmtt_led_config,
 223 };
 224
 225 static struct platform_device palmtt_led_device = {
 226         .name   = "omap-led",
 227         .id     = -1,
 228         .dev    = {
 229                 .platform_data  = &palmtt_led_data,
 230         },
 231 };
 232
 233 static struct platform_device *palmtt_devices[] __initdata = {
 234         &palmtt_flash_device,
 235         &palmtt_kp_device,
 236         &palmtt_lcd_device,
 237         &palmtt_irda_device,
 238         &palmtt_spi_device,
 239         &palmtt_backlight_device,
 240         &palmtt_led_device,
 241 };
 242
 243 static int palmtt_get_pendown_state(void)
 244 {
 245         return !gpio_get_value(6);
 246 }
 247
 248 static const struct ads7846_platform_data palmtt_ts_info = {
 249         .model                  = 7846,
 250         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 251         .x_plate_ohms           = 419,
 252         .y_plate_ohms           = 486,
 253         .get_pendown_state      = palmtt_get_pendown_state,
 254 };
 255
 256 static struct spi_board_info __initdata palmtt_boardinfo[] = {
 257         {
 258                 /* MicroWire (bus 2) CS0 has an ads7846e */
 259                 .modalias       = "ads7846",
 260                 .platform_data  = &palmtt_ts_info,
 261                 .max_speed_hz   = 120000        /* max sample rate at 3V */
 262                                         * 26    /* command + data + overhead */,
 263                 .bus_num        = 2,
 264                 .chip_select    = 0,
 265         }
 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 void __init omap_mpu_wdt_mode(int mode) {
 279         if (mode)
 280                 omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 281         else {
 282                 omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 283                 omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 284         }
 285 }
 286
 287 static void __init omap_palmtt_init(void)
 288 {
 289         /* mux pins for uarts */
 290         omap_cfg_reg(UART1_TX);
 291         omap_cfg_reg(UART1_RTS);
 292         omap_cfg_reg(UART2_TX);
 293         omap_cfg_reg(UART2_RTS);
 294         omap_cfg_reg(UART3_TX);
 295         omap_cfg_reg(UART3_RX);
 296
 297         omap_mpu_wdt_mode(0);
 298
 299         platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
 300
 301         palmtt_boardinfo[0].irq = gpio_to_irq(6);
 302         spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
 303         omap_serial_init();
 304         omap1_usb_init(&palmtt_usb_config);
 305         omap_register_i2c_bus(1, 100, NULL, 0);
 306
 307         omapfb_set_lcd_config(&palmtt_lcd_config);
 308 }
 309
 310 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
 311         .atag_offset    = 0x100,
 312         .map_io         = omap15xx_map_io,
 313         .init_early     = omap1_init_early,
 314         .init_irq       = omap1_init_irq,
 315         .init_machine   = omap_palmtt_init,
 316         .init_late      = omap1_init_late,
 317         .init_time      = omap1_timer_init,
 318         .restart        = omap1_restart,
 319 MACHINE_END