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 #include <linux/omapfb.h>
  31 #include <linux/platform_data/omap1_bl.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36
  37 #include "flash.h"
  38 #include <mach/mux.h>
  39 #include <mach/tc.h>
  40 #include <linux/omap-dma.h>
  41 #include <linux/platform_data/keypad-omap.h>
  42
  43 #include <mach/hardware.h>
  44 #include <mach/usb.h>
  45
  46 #include "common.h"
  47
  48 #define PALMTE_USBDETECT_GPIO   0
  49 #define PALMTE_USB_OR_DC_GPIO   1
  50 #define PALMTE_TSC_GPIO         4
  51 #define PALMTE_PINTDAV_GPIO     6
  52 #define PALMTE_MMC_WP_GPIO      8
  53 #define PALMTE_MMC_POWER_GPIO   9
  54 #define PALMTE_HDQ_GPIO         11
  55 #define PALMTE_HEADPHONES_GPIO  14
  56 #define PALMTE_SPEAKER_GPIO     15
  57 #define PALMTE_DC_GPIO          OMAP_MPUIO(2)
  58 #define PALMTE_MMC_SWITCH_GPIO  OMAP_MPUIO(4)
  59 #define PALMTE_MMC1_GPIO        OMAP_MPUIO(6)
  60 #define PALMTE_MMC2_GPIO        OMAP_MPUIO(7)
  61 #define PALMTE_MMC3_GPIO        OMAP_MPUIO(11)
  62
  63 static const unsigned int palmte_keymap[] = {
  64         KEY(0, 0, KEY_F1),              /* Calendar */
  65         KEY(1, 0, KEY_F2),              /* Contacts */
  66         KEY(2, 0, KEY_F3),              /* Tasks List */
  67         KEY(3, 0, KEY_F4),              /* Note Pad */
  68         KEY(4, 0, KEY_POWER),
  69         KEY(0, 1, KEY_LEFT),
  70         KEY(1, 1, KEY_DOWN),
  71         KEY(2, 1, KEY_UP),
  72         KEY(3, 1, KEY_RIGHT),
  73         KEY(4, 1, KEY_ENTER),
  74 };
  75
  76 static const struct matrix_keymap_data palmte_keymap_data = {
  77         .keymap         = palmte_keymap,
  78         .keymap_size    = ARRAY_SIZE(palmte_keymap),
  79 };
  80
  81 static struct omap_kp_platform_data palmte_kp_data = {
  82         .rows   = 8,
  83         .cols   = 8,
  84         .keymap_data = &palmte_keymap_data,
  85         .rep    = true,
  86         .delay  = 12,
  87 };
  88
  89 static struct resource palmte_kp_resources[] = {
  90         [0]     = {
  91                 .start  = INT_KEYBOARD,
  92                 .end    = INT_KEYBOARD,
  93                 .flags  = IORESOURCE_IRQ,
  94         },
  95 };
  96
  97 static struct platform_device palmte_kp_device = {
  98         .name           = "omap-keypad",
  99         .id             = -1,
 100         .dev            = {
 101                 .platform_data  = &palmte_kp_data,
 102         },
 103         .num_resources  = ARRAY_SIZE(palmte_kp_resources),
 104         .resource       = palmte_kp_resources,
 105 };
 106
 107 static struct mtd_partition palmte_rom_partitions[] = {
 108         /* PalmOS "Small ROM", contains the bootloader and the debugger */
 109         {
 110                 .name           = "smallrom",
 111                 .offset         = 0,
 112                 .size           = 0xa000,
 113                 .mask_flags     = MTD_WRITEABLE,
 114         },
 115         /* PalmOS "Big ROM", a filesystem with all the OS code and data */
 116         {
 117                 .name           = "bigrom",
 118                 .offset         = SZ_128K,
 119                 /*
 120                  * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
 121                  * 0x7b0000 bytes in the English-only ("enUS") version.
 122                  */
 123                 .size           = 0x7b0000,
 124                 .mask_flags     = MTD_WRITEABLE,
 125         },
 126 };
 127
 128 static struct physmap_flash_data palmte_rom_data = {
 129         .width          = 2,
 130         .set_vpp        = omap1_set_vpp,
 131         .parts          = palmte_rom_partitions,
 132         .nr_parts       = ARRAY_SIZE(palmte_rom_partitions),
 133 };
 134
 135 static struct resource palmte_rom_resource = {
 136         .start          = OMAP_CS0_PHYS,
 137         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 138         .flags          = IORESOURCE_MEM,
 139 };
 140
 141 static struct platform_device palmte_rom_device = {
 142         .name           = "physmap-flash",
 143         .id             = -1,
 144         .dev            = {
 145                 .platform_data  = &palmte_rom_data,
 146         },
 147         .num_resources  = 1,
 148         .resource       = &palmte_rom_resource,
 149 };
 150
 151 static struct platform_device palmte_lcd_device = {
 152         .name           = "lcd_palmte",
 153         .id             = -1,
 154 };
 155
 156 static struct omap_backlight_config palmte_backlight_config = {
 157         .default_intensity      = 0xa0,
 158 };
 159
 160 static struct platform_device palmte_backlight_device = {
 161         .name           = "omap-bl",
 162         .id             = -1,
 163         .dev            = {
 164                 .platform_data  = &palmte_backlight_config,
 165         },
 166 };
 167
 168 static struct platform_device *palmte_devices[] __initdata = {
 169         &palmte_rom_device,
 170         &palmte_kp_device,
 171         &palmte_lcd_device,
 172         &palmte_backlight_device,
 173 };
 174
 175 static struct omap_usb_config palmte_usb_config __initdata = {
 176         .register_dev   = 1,    /* Mini-B only receptacle */
 177         .hmc_mode       = 0,
 178         .pins[0]        = 2,
 179 };
 180
 181 static const struct omap_lcd_config palmte_lcd_config __initconst = {
 182         .ctrl_name      = "internal",
 183 };
 184
 185 static struct spi_board_info palmte_spi_info[] __initdata = {
 186         {
 187                 .modalias       = "tsc2102",
 188                 .bus_num        = 2,    /* uWire (officially) */
 189                 .chip_select    = 0,    /* As opposed to 3 */
 190                 .max_speed_hz   = 8000000,
 191         },
 192 };
 193
 194 static void __init palmte_misc_gpio_setup(void)
 195 {
 196         /* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
 197         if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
 198                 printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
 199                 return;
 200         }
 201         gpio_direction_input(PALMTE_PINTDAV_GPIO);
 202
 203         /* Set USB-or-DC-IN pin as input (unused) */
 204         if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
 205                 printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
 206                 return;
 207         }
 208         gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
 209 }
 210
 211 static void __init omap_palmte_init(void)
 212 {
 213         /* mux pins for uarts */
 214         omap_cfg_reg(UART1_TX);
 215         omap_cfg_reg(UART1_RTS);
 216         omap_cfg_reg(UART2_TX);
 217         omap_cfg_reg(UART2_RTS);
 218         omap_cfg_reg(UART3_TX);
 219         omap_cfg_reg(UART3_RX);
 220
 221         platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
 222
 223         palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
 224         spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
 225         palmte_misc_gpio_setup();
 226         omap_serial_init();
 227         omap1_usb_init(&palmte_usb_config);
 228         omap_register_i2c_bus(1, 100, NULL, 0);
 229
 230         omapfb_set_lcd_config(&palmte_lcd_config);
 231 }
 232
 233 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
 234         .atag_offset    = 0x100,
 235         .map_io         = omap15xx_map_io,
 236         .init_early     = omap1_init_early,
 237         .init_irq       = omap1_init_irq,
 238         .handle_irq     = omap1_handle_irq,
 239         .init_machine   = omap_palmte_init,
 240         .init_late      = omap1_init_late,
 241         .init_time      = omap1_timer_init,
 242         .restart        = omap1_restart,
 243 MACHINE_END