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 #include <linux/gpio.h>
  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 <plat/flash.h>
  37 #include <plat/mux.h>
  38 #include <plat/usb.h>
  39 #include <plat/tc.h>
  40 #include <plat/dma.h>
  41 #include <plat/board.h>
  42 #include <plat/irda.h>
  43 #include <plat/keypad.h>
  44 #include <plat/common.h>
  45
  46 #define PALMTE_USBDETECT_GPIO   0
  47 #define PALMTE_USB_OR_DC_GPIO   1
  48 #define PALMTE_TSC_GPIO         4
  49 #define PALMTE_PINTDAV_GPIO     6
  50 #define PALMTE_MMC_WP_GPIO      8
  51 #define PALMTE_MMC_POWER_GPIO   9
  52 #define PALMTE_HDQ_GPIO         11
  53 #define PALMTE_HEADPHONES_GPIO  14
  54 #define PALMTE_SPEAKER_GPIO     15
  55 #define PALMTE_DC_GPIO          OMAP_MPUIO(2)
  56 #define PALMTE_MMC_SWITCH_GPIO  OMAP_MPUIO(4)
  57 #define PALMTE_MMC1_GPIO        OMAP_MPUIO(6)
  58 #define PALMTE_MMC2_GPIO        OMAP_MPUIO(7)
  59 #define PALMTE_MMC3_GPIO        OMAP_MPUIO(11)
  60
  61 static void __init omap_palmte_init_irq(void)
  62 {
  63         omap1_init_common_hw();
  64         omap1_init_irq();
  65 }
  66
  67 static const unsigned int palmte_keymap[] = {
  68         KEY(0, 0, KEY_F1),              /* Calendar */
  69         KEY(1, 0, KEY_F2),              /* Contacts */
  70         KEY(2, 0, KEY_F3),              /* Tasks List */
  71         KEY(3, 0, KEY_F4),              /* Note Pad */
  72         KEY(4, 0, KEY_POWER),
  73         KEY(0, 1, KEY_LEFT),
  74         KEY(1, 1, KEY_DOWN),
  75         KEY(2, 1, KEY_UP),
  76         KEY(3, 1, KEY_RIGHT),
  77         KEY(4, 1, KEY_ENTER),
  78 };
  79
  80 static const struct matrix_keymap_data palmte_keymap_data = {
  81         .keymap         = palmte_keymap,
  82         .keymap_size    = ARRAY_SIZE(palmte_keymap),
  83 };
  84
  85 static struct omap_kp_platform_data palmte_kp_data = {
  86         .rows   = 8,
  87         .cols   = 8,
  88         .keymap_data = &palmte_keymap_data,
  89         .rep    = true,
  90         .delay  = 12,
  91 };
  92
  93 static struct resource palmte_kp_resources[] = {
  94         [0]     = {
  95                 .start  = INT_KEYBOARD,
  96                 .end    = INT_KEYBOARD,
  97                 .flags  = IORESOURCE_IRQ,
  98         },
  99 };
 100
 101 static struct platform_device palmte_kp_device = {
 102         .name           = "omap-keypad",
 103         .id             = -1,
 104         .dev            = {
 105                 .platform_data  = &palmte_kp_data,
 106         },
 107         .num_resources  = ARRAY_SIZE(palmte_kp_resources),
 108         .resource       = palmte_kp_resources,
 109 };
 110
 111 static struct mtd_partition palmte_rom_partitions[] = {
 112         /* PalmOS "Small ROM", contains the bootloader and the debugger */
 113         {
 114                 .name           = "smallrom",
 115                 .offset         = 0,
 116                 .size           = 0xa000,
 117                 .mask_flags     = MTD_WRITEABLE,
 118         },
 119         /* PalmOS "Big ROM", a filesystem with all the OS code and data */
 120         {
 121                 .name           = "bigrom",
 122                 .offset         = SZ_128K,
 123                 /*
 124                  * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
 125                  * 0x7b0000 bytes in the English-only ("enUS") version.
 126                  */
 127                 .size           = 0x7b0000,
 128                 .mask_flags     = MTD_WRITEABLE,
 129         },
 130 };
 131
 132 static struct physmap_flash_data palmte_rom_data = {
 133         .width          = 2,
 134         .set_vpp        = omap1_set_vpp,
 135         .parts          = palmte_rom_partitions,
 136         .nr_parts       = ARRAY_SIZE(palmte_rom_partitions),
 137 };
 138
 139 static struct resource palmte_rom_resource = {
 140         .start          = OMAP_CS0_PHYS,
 141         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 142         .flags          = IORESOURCE_MEM,
 143 };
 144
 145 static struct platform_device palmte_rom_device = {
 146         .name           = "physmap-flash",
 147         .id             = -1,
 148         .dev            = {
 149                 .platform_data  = &palmte_rom_data,
 150         },
 151         .num_resources  = 1,
 152         .resource       = &palmte_rom_resource,
 153 };
 154
 155 static struct platform_device palmte_lcd_device = {
 156         .name           = "lcd_palmte",
 157         .id             = -1,
 158 };
 159
 160 static struct omap_backlight_config palmte_backlight_config = {
 161         .default_intensity      = 0xa0,
 162 };
 163
 164 static struct platform_device palmte_backlight_device = {
 165         .name           = "omap-bl",
 166         .id             = -1,
 167         .dev            = {
 168                 .platform_data  = &palmte_backlight_config,
 169         },
 170 };
 171
 172 static struct omap_irda_config palmte_irda_config = {
 173         .transceiver_cap        = IR_SIRMODE,
 174         .rx_channel             = OMAP_DMA_UART3_RX,
 175         .tx_channel             = OMAP_DMA_UART3_TX,
 176         .dest_start             = UART3_THR,
 177         .src_start              = UART3_RHR,
 178         .tx_trigger             = 0,
 179         .rx_trigger             = 0,
 180 };
 181
 182 static struct resource palmte_irda_resources[] = {
 183         [0]     = {
 184                 .start  = INT_UART3,
 185                 .end    = INT_UART3,
 186                 .flags  = IORESOURCE_IRQ,
 187         },
 188 };
 189
 190 static struct platform_device palmte_irda_device = {
 191         .name           = "omapirda",
 192         .id             = -1,
 193         .dev            = {
 194                 .platform_data  = &palmte_irda_config,
 195         },
 196         .num_resources  = ARRAY_SIZE(palmte_irda_resources),
 197         .resource       = palmte_irda_resources,
 198 };
 199
 200 static struct platform_device *palmte_devices[] __initdata = {
 201         &palmte_rom_device,
 202         &palmte_kp_device,
 203         &palmte_lcd_device,
 204         &palmte_backlight_device,
 205         &palmte_irda_device,
 206 };
 207
 208 static struct omap_usb_config palmte_usb_config __initdata = {
 209         .register_dev   = 1,    /* Mini-B only receptacle */
 210         .hmc_mode       = 0,
 211         .pins[0]        = 2,
 212 };
 213
 214 static struct omap_lcd_config palmte_lcd_config __initdata = {
 215         .ctrl_name      = "internal",
 216 };
 217
 218 static struct omap_board_config_kernel palmte_config[] __initdata = {
 219         { OMAP_TAG_LCD,         &palmte_lcd_config },
 220 };
 221
 222 static struct spi_board_info palmte_spi_info[] __initdata = {
 223         {
 224                 .modalias       = "tsc2102",
 225                 .bus_num        = 2,    /* uWire (officially) */
 226                 .chip_select    = 0,    /* As opposed to 3 */
 227                 .irq            = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
 228                 .max_speed_hz   = 8000000,
 229         },
 230 };
 231
 232 static void __init palmte_misc_gpio_setup(void)
 233 {
 234         /* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
 235         if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
 236                 printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
 237                 return;
 238         }
 239         gpio_direction_input(PALMTE_PINTDAV_GPIO);
 240
 241         /* Set USB-or-DC-IN pin as input (unused) */
 242         if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
 243                 printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
 244                 return;
 245         }
 246         gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
 247 }
 248
 249 static void __init omap_palmte_init(void)
 250 {
 251         /* mux pins for uarts */
 252         omap_cfg_reg(UART1_TX);
 253         omap_cfg_reg(UART1_RTS);
 254         omap_cfg_reg(UART2_TX);
 255         omap_cfg_reg(UART2_RTS);
 256         omap_cfg_reg(UART3_TX);
 257         omap_cfg_reg(UART3_RX);
 258
 259         omap_board_config = palmte_config;
 260         omap_board_config_size = ARRAY_SIZE(palmte_config);
 261
 262         platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
 263
 264         spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
 265         palmte_misc_gpio_setup();
 266         omap_serial_init();
 267         omap1_usb_init(&palmte_usb_config);
 268         omap_register_i2c_bus(1, 100, NULL, 0);
 269 }
 270
 271 static void __init omap_palmte_map_io(void)
 272 {
 273         omap1_map_common_io();
 274 }
 275
 276 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
 277         .atag_offset    = 0x100,
 278         .map_io         = omap_palmte_map_io,
 279         .reserve        = omap_reserve,
 280         .init_irq       = omap_palmte_init_irq,
 281         .init_machine   = omap_palmte_init,
 282         .timer          = &omap1_timer,
 283 MACHINE_END