linux/arch/arm/mach-at91/board-csb337.c
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   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
  46static 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
  61static void __init csb337_init_irq(void)
  62{
  63        at91rm9200_init_interrupts(NULL);
  64}
  65
  66static struct at91_eth_data __initdata csb337_eth_data = {
  67        .phy_irq_pin    = AT91_PIN_PC2,
  68        .is_rmii        = 0,
  69};
  70
  71static struct at91_usbh_data __initdata csb337_usbh_data = {
  72        .ports          = 2,
  73};
  74
  75static struct at91_udc_data __initdata csb337_udc_data = {
  76        // this has no VBUS sensing pin
  77        .pullup_pin     = AT91_PIN_PA24,
  78};
  79
  80static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  81        {
  82                I2C_BOARD_INFO("ds1307", 0x68),
  83        },
  84};
  85
  86static 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
 101static 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
 108static 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
 119static 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
 128static 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
 134static 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
 142static 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)
 156static 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
 180static struct gpio_keys_platform_data csb300_button_data = {
 181        .buttons        = csb300_buttons,
 182        .nbuttons       = ARRAY_SIZE(csb300_buttons),
 183};
 184
 185static 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
 194static 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
 206static void __init csb300_add_device_buttons(void) {}
 207#endif
 208
 209static 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
 231static 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
 258MACHINE_START(CSB337, "Cogent CSB337")
 259        /* Maintainer: Bill Gatliff */
 260        .boot_params    = AT91_SDRAM_BASE + 0x100,
 261        .timer          = &at91rm9200_timer,
 262        .map_io         = csb337_map_io,
 263        .init_irq       = csb337_init_irq,
 264        .init_machine   = csb337_board_init,
 265MACHINE_END
 266