release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-csb337.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-csb337.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <linux/types.h>
  22 #include <linux/init.h>
  23 #include <linux/mm.h>
  24 #include <linux/module.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/spi/spi.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <linux/input.h>
  29 #include <linux/gpio_keys.h>
  30
  31 #include <asm/setup.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/irq.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/irq.h>
  38
  39 #include <mach/hardware.h>
  40 #include <mach/board.h>
  41 #include <mach/gpio.h>
  42
  43 #include "generic.h"
  44
  45
  46 static void __init csb337_map_io(void)
  47 {
  48         /* Initialize processor: 3.6864 MHz crystal */
  49         at91rm9200_initialize(3686400, AT91RM9200_BGA);
  50
  51         /* Setup the LEDs */
  52         at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
  53
  54         /* DBGU on ttyS0 */
  55         at91_register_uart(0, 0, 0);
  56
  57         /* make console=ttyS0 the default */
  58         at91_set_serial_console(0);
  59 }
  60
  61 static void __init csb337_init_irq(void)
  62 {
  63         at91rm9200_init_interrupts(NULL);
  64 }
  65
  66 static struct at91_eth_data __initdata csb337_eth_data = {
  67         .phy_irq_pin    = AT91_PIN_PC2,
  68         .is_rmii        = 0,
  69 };
  70
  71 static struct at91_usbh_data __initdata csb337_usbh_data = {
  72         .ports          = 2,
  73 };
  74
  75 static struct at91_udc_data __initdata csb337_udc_data = {
  76         // this has no VBUS sensing pin
  77         .pullup_pin     = AT91_PIN_PA24,
  78 };
  79
  80 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  81         {
  82                 I2C_BOARD_INFO("ds1307", 0x68),
  83         },
  84 };
  85
  86 static struct at91_cf_data __initdata csb337_cf_data = {
  87         /*
  88          * connector P4 on the CSB 337 mates to
  89          * connector P8 on the CSB 300CF
  90          */
  91
  92         /* CSB337 specific */
  93         .det_pin        = AT91_PIN_PC3,
  94
  95         /* CSB300CF specific */
  96         .irq_pin        = AT91_PIN_PA19,
  97         .vcc_pin        = AT91_PIN_PD0,
  98         .rst_pin        = AT91_PIN_PD2,
  99 };
 100
 101 static struct at91_mmc_data __initdata csb337_mmc_data = {
 102         .det_pin        = AT91_PIN_PD5,
 103         .slot_b         = 0,
 104         .wire4          = 1,
 105         .wp_pin         = AT91_PIN_PD6,
 106 };
 107
 108 static struct spi_board_info csb337_spi_devices[] = {
 109         {       /* CAN controller */
 110                 .modalias       = "sak82c900",
 111                 .chip_select    = 0,
 112                 .max_speed_hz   = 6 * 1000 * 1000,
 113         },
 114 };
 115
 116 #define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 117 #define CSB_FLASH_SIZE  SZ_8M
 118
 119 static struct mtd_partition csb_flash_partitions[] = {
 120         {
 121                 .name           = "uMON flash",
 122                 .offset         = 0,
 123                 .size           = MTDPART_SIZ_FULL,
 124                 .mask_flags     = MTD_WRITEABLE,        /* read only */
 125         }
 126 };
 127
 128 static struct physmap_flash_data csb_flash_data = {
 129         .width          = 2,
 130         .parts          = csb_flash_partitions,
 131         .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 132 };
 133
 134 static struct resource csb_flash_resources[] = {
 135         {
 136                 .start  = CSB_FLASH_BASE,
 137                 .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 138                 .flags  = IORESOURCE_MEM,
 139         }
 140 };
 141
 142 static struct platform_device csb_flash = {
 143         .name           = "physmap-flash",
 144         .id             = 0,
 145         .dev            = {
 146                                 .platform_data = &csb_flash_data,
 147                         },
 148         .resource       = csb_flash_resources,
 149         .num_resources  = ARRAY_SIZE(csb_flash_resources),
 150 };
 151
 152 /*
 153  * GPIO Buttons (on CSB300)
 154  */
 155 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 156 static struct gpio_keys_button csb300_buttons[] = {
 157         {
 158                 .gpio           = AT91_PIN_PB29,
 159                 .code           = BTN_0,
 160                 .desc           = "sw0",
 161                 .active_low     = 1,
 162                 .wakeup         = 1,
 163         },
 164         {
 165                 .gpio           = AT91_PIN_PB28,
 166                 .code           = BTN_1,
 167                 .desc           = "sw1",
 168                 .active_low     = 1,
 169                 .wakeup         = 1,
 170         },
 171         {
 172                 .gpio           = AT91_PIN_PA21,
 173                 .code           = BTN_2,
 174                 .desc           = "sw2",
 175                 .active_low     = 1,
 176                 .wakeup         = 1,
 177         }
 178 };
 179
 180 static struct gpio_keys_platform_data csb300_button_data = {
 181         .buttons        = csb300_buttons,
 182         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 183 };
 184
 185 static struct platform_device csb300_button_device = {
 186         .name           = "gpio-keys",
 187         .id             = -1,
 188         .num_resources  = 0,
 189         .dev            = {
 190                 .platform_data  = &csb300_button_data,
 191         }
 192 };
 193
 194 static void __init csb300_add_device_buttons(void)
 195 {
 196         at91_set_gpio_input(AT91_PIN_PB29, 1);  /* sw0 */
 197         at91_set_deglitch(AT91_PIN_PB29, 1);
 198         at91_set_gpio_input(AT91_PIN_PB28, 1);  /* sw1 */
 199         at91_set_deglitch(AT91_PIN_PB28, 1);
 200         at91_set_gpio_input(AT91_PIN_PA21, 1);  /* sw2 */
 201         at91_set_deglitch(AT91_PIN_PA21, 1);
 202
 203         platform_device_register(&csb300_button_device);
 204 }
 205 #else
 206 static void __init csb300_add_device_buttons(void) {}
 207 #endif
 208
 209 static struct gpio_led csb_leds[] = {
 210         {       /* "led0", yellow */
 211                 .name                   = "led0",
 212                 .gpio                   = AT91_PIN_PB2,
 213                 .active_low             = 1,
 214                 .default_trigger        = "heartbeat",
 215         },
 216         {       /* "led1", green */
 217                 .name                   = "led1",
 218                 .gpio                   = AT91_PIN_PB1,
 219                 .active_low             = 1,
 220                 .default_trigger        = "mmc0",
 221         },
 222         {       /* "led2", yellow */
 223                 .name                   = "led2",
 224                 .gpio                   = AT91_PIN_PB0,
 225                 .active_low             = 1,
 226                 .default_trigger        = "ide-disk",
 227         }
 228 };
 229
 230
 231 static void __init csb337_board_init(void)
 232 {
 233         /* Serial */
 234         at91_add_device_serial();
 235         /* Ethernet */
 236         at91_add_device_eth(&csb337_eth_data);
 237         /* USB Host */
 238         at91_add_device_usbh(&csb337_usbh_data);
 239         /* USB Device */
 240         at91_add_device_udc(&csb337_udc_data);
 241         /* I2C */
 242         at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 243         /* Compact Flash */
 244         at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 245         at91_add_device_cf(&csb337_cf_data);
 246         /* SPI */
 247         at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 248         /* MMC */
 249         at91_add_device_mmc(0, &csb337_mmc_data);
 250         /* NOR flash */
 251         platform_device_register(&csb_flash);
 252         /* LEDs */
 253         at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 254         /* Switches on CSB300 */
 255         csb300_add_device_buttons();
 256 }
 257
 258 MACHINE_START(CSB337, "Cogent CSB337")
 259         /* Maintainer: Bill Gatliff */
 260         .phys_io        = AT91_BASE_SYS,
 261         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 262         .boot_params    = AT91_SDRAM_BASE + 0x100,
 263         .timer          = &at91rm9200_timer,
 264         .map_io         = csb337_map_io,
 265         .init_irq       = csb337_init_irq,
 266         .init_machine   = csb337_board_init,
 267 MACHINE_END