arch/arm/mach-omap1/board-palmte.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-palmte.c
   3  *
   4  * Modified from board-generic.c
   5  *
   6  * Support for the Palm Tungsten E PDA.
   7  *
   8  * Original version : Laurent Gonzalez
   9  *
  10  * Maintainers : http://palmtelinux.sf.net
  11  *                palmtelinux-developpers@lists.sf.net
  12  *
  13  * Copyright (c) 2006 Andrzej Zaborowski  <balrog@zabor.org>
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License version 2 as
  17  * published by the Free Software Foundation.
  18  */
  19
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/input.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/mtd/mtd.h>
  25 #include <linux/mtd/partitions.h>
  26 #include <linux/mtd/physmap.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/apm-emulation.h>
  30
  31 #include <mach/hardware.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <mach/gpio.h>
  37 #include <plat/flash.h>
  38 #include <plat/mux.h>
  39 #include <plat/usb.h>
  40 #include <plat/tc.h>
  41 #include <plat/dma.h>
  42 #include <plat/board.h>
  43 #include <plat/irda.h>
  44 #include <plat/keypad.h>
  45 #include <plat/common.h>
  46
  47 #define PALMTE_USBDETECT_GPIO   0
  48 #define PALMTE_USB_OR_DC_GPIO   1
  49 #define PALMTE_TSC_GPIO         4
  50 #define PALMTE_PINTDAV_GPIO     6
  51 #define PALMTE_MMC_WP_GPIO      8
  52 #define PALMTE_MMC_POWER_GPIO   9
  53 #define PALMTE_HDQ_GPIO         11
  54 #define PALMTE_HEADPHONES_GPIO  14
  55 #define PALMTE_SPEAKER_GPIO     15
  56 #define PALMTE_DC_GPIO          OMAP_MPUIO(2)
  57 #define PALMTE_MMC_SWITCH_GPIO  OMAP_MPUIO(4)
  58 #define PALMTE_MMC1_GPIO        OMAP_MPUIO(6)
  59 #define PALMTE_MMC2_GPIO        OMAP_MPUIO(7)
  60 #define PALMTE_MMC3_GPIO        OMAP_MPUIO(11)
  61
  62 static void __init omap_palmte_init_irq(void)
  63 {
  64         omap1_init_common_hw();
  65         omap_init_irq();
  66         omap_gpio_init();
  67 }
  68
  69 static const int palmte_keymap[] = {
  70         KEY(0, 0, KEY_F1),              /* Calendar */
  71         KEY(0, 1, KEY_F2),              /* Contacts */
  72         KEY(0, 2, KEY_F3),              /* Tasks List */
  73         KEY(0, 3, KEY_F4),              /* Note Pad */
  74         KEY(0, 4, KEY_POWER),
  75         KEY(1, 0, KEY_LEFT),
  76         KEY(1, 1, KEY_DOWN),
  77         KEY(1, 2, KEY_UP),
  78         KEY(1, 3, KEY_RIGHT),
  79         KEY(1, 4, KEY_ENTER),
  80         0,
  81 };
  82
  83 static struct omap_kp_platform_data palmte_kp_data = {
  84         .rows   = 8,
  85         .cols   = 8,
  86         .keymap = (int *) palmte_keymap,
  87         .rep    = 1,
  88         .delay  = 12,
  89 };
  90
  91 static struct resource palmte_kp_resources[] = {
  92         [0]     = {
  93                 .start  = INT_KEYBOARD,
  94                 .end    = INT_KEYBOARD,
  95                 .flags  = IORESOURCE_IRQ,
  96         },
  97 };
  98
  99 static struct platform_device palmte_kp_device = {
 100         .name           = "omap-keypad",
 101         .id             = -1,
 102         .dev            = {
 103                 .platform_data  = &palmte_kp_data,
 104         },
 105         .num_resources  = ARRAY_SIZE(palmte_kp_resources),
 106         .resource       = palmte_kp_resources,
 107 };
 108
 109 static struct mtd_partition palmte_rom_partitions[] = {
 110         /* PalmOS "Small ROM", contains the bootloader and the debugger */
 111         {
 112                 .name           = "smallrom",
 113                 .offset         = 0,
 114                 .size           = 0xa000,
 115                 .mask_flags     = MTD_WRITEABLE,
 116         },
 117         /* PalmOS "Big ROM", a filesystem with all the OS code and data */
 118         {
 119                 .name           = "bigrom",
 120                 .offset         = SZ_128K,
 121                 /*
 122                  * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
 123                  * 0x7b0000 bytes in the English-only ("enUS") version.
 124                  */
 125                 .size           = 0x7b0000,
 126                 .mask_flags     = MTD_WRITEABLE,
 127         },
 128 };
 129
 130 static struct physmap_flash_data palmte_rom_data = {
 131         .width          = 2,
 132         .set_vpp        = omap1_set_vpp,
 133         .parts          = palmte_rom_partitions,
 134         .nr_parts       = ARRAY_SIZE(palmte_rom_partitions),
 135 };
 136
 137 static struct resource palmte_rom_resource = {
 138         .start          = OMAP_CS0_PHYS,
 139         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 140         .flags          = IORESOURCE_MEM,
 141 };
 142
 143 static struct platform_device palmte_rom_device = {
 144         .name           = "physmap-flash",
 145         .id             = -1,
 146         .dev            = {
 147                 .platform_data  = &palmte_rom_data,
 148         },
 149         .num_resources  = 1,
 150         .resource       = &palmte_rom_resource,
 151 };
 152
 153 static struct platform_device palmte_lcd_device = {
 154         .name           = "lcd_palmte",
 155         .id             = -1,
 156 };
 157
 158 static struct omap_backlight_config palmte_backlight_config = {
 159         .default_intensity      = 0xa0,
 160 };
 161
 162 static struct platform_device palmte_backlight_device = {
 163         .name           = "omap-bl",
 164         .id             = -1,
 165         .dev            = {
 166                 .platform_data  = &palmte_backlight_config,
 167         },
 168 };
 169
 170 static struct omap_irda_config palmte_irda_config = {
 171         .transceiver_cap        = IR_SIRMODE,
 172         .rx_channel             = OMAP_DMA_UART3_RX,
 173         .tx_channel             = OMAP_DMA_UART3_TX,
 174         .dest_start             = UART3_THR,
 175         .src_start              = UART3_RHR,
 176         .tx_trigger             = 0,
 177         .rx_trigger             = 0,
 178 };
 179
 180 static struct resource palmte_irda_resources[] = {
 181         [0]     = {
 182                 .start  = INT_UART3,
 183                 .end    = INT_UART3,
 184                 .flags  = IORESOURCE_IRQ,
 185         },
 186 };
 187
 188 static struct platform_device palmte_irda_device = {
 189         .name           = "omapirda",
 190         .id             = -1,
 191         .dev            = {
 192                 .platform_data  = &palmte_irda_config,
 193         },
 194         .num_resources  = ARRAY_SIZE(palmte_irda_resources),
 195         .resource       = palmte_irda_resources,
 196 };
 197
 198 static struct platform_device *palmte_devices[] __initdata = {
 199         &palmte_rom_device,
 200         &palmte_kp_device,
 201         &palmte_lcd_device,
 202         &palmte_backlight_device,
 203         &palmte_irda_device,
 204 };
 205
 206 static struct omap_usb_config palmte_usb_config __initdata = {
 207         .register_dev   = 1,    /* Mini-B only receptacle */
 208         .hmc_mode       = 0,
 209         .pins[0]        = 2,
 210 };
 211
 212 static struct omap_lcd_config palmte_lcd_config __initdata = {
 213         .ctrl_name      = "internal",
 214 };
 215
 216 static struct omap_board_config_kernel palmte_config[] __initdata = {
 217         { OMAP_TAG_LCD,         &palmte_lcd_config },
 218 };
 219
 220 static struct spi_board_info palmte_spi_info[] __initdata = {
 221         {
 222                 .modalias       = "tsc2102",
 223                 .bus_num        = 2,    /* uWire (officially) */
 224                 .chip_select    = 0,    /* As opposed to 3 */
 225                 .irq            = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
 226                 .max_speed_hz   = 8000000,
 227         },
 228 };
 229
 230 static void palmte_headphones_detect(void *data, int state)
 231 {
 232         if (state) {
 233                 /* Headphones connected, disable speaker */
 234                 gpio_set_value(PALMTE_SPEAKER_GPIO, 0);
 235                 printk(KERN_INFO "PM: speaker off\n");
 236         } else {
 237                 /* Headphones unplugged, re-enable speaker */
 238                 gpio_set_value(PALMTE_SPEAKER_GPIO, 1);
 239                 printk(KERN_INFO "PM: speaker on\n");
 240         }
 241 }
 242
 243 static void __init palmte_misc_gpio_setup(void)
 244 {
 245         /* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
 246         if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
 247                 printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
 248                 return;
 249         }
 250         gpio_direction_input(PALMTE_PINTDAV_GPIO);
 251
 252         /* Set USB-or-DC-IN pin as input (unused) */
 253         if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
 254                 printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
 255                 return;
 256         }
 257         gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
 258 }
 259
 260 static void __init omap_palmte_init(void)
 261 {
 262         /* mux pins for uarts */
 263         omap_cfg_reg(UART1_TX);
 264         omap_cfg_reg(UART1_RTS);
 265         omap_cfg_reg(UART2_TX);
 266         omap_cfg_reg(UART2_RTS);
 267         omap_cfg_reg(UART3_TX);
 268         omap_cfg_reg(UART3_RX);
 269
 270         omap_board_config = palmte_config;
 271         omap_board_config_size = ARRAY_SIZE(palmte_config);
 272
 273         platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
 274
 275         spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
 276         palmte_misc_gpio_setup();
 277         omap_serial_init();
 278         omap1_usb_init(&palmte_usb_config);
 279         omap_register_i2c_bus(1, 100, NULL, 0);
 280 }
 281
 282 static void __init omap_palmte_map_io(void)
 283 {
 284         omap1_map_common_io();
 285 }
 286
 287 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
 288         .boot_params    = 0x10000100,
 289         .map_io         = omap_palmte_map_io,
 290         .reserve        = omap_reserve,
 291         .init_irq       = omap_palmte_init_irq,
 292         .init_machine   = omap_palmte_init,
 293         .timer          = &omap_timer,
 294 MACHINE_END