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/gpio.h>
  23#include <linux/init.h>
  24#include <linux/mm.h>
  25#include <linux/module.h>
  26#include <linux/platform_device.h>
  27#include <linux/spi/spi.h>
  28#include <linux/mtd/physmap.h>
  29#include <linux/input.h>
  30#include <linux/gpio_keys.h>
  31
  32#include <asm/setup.h>
  33#include <asm/mach-types.h>
  34#include <asm/irq.h>
  35
  36#include <asm/mach/arch.h>
  37#include <asm/mach/map.h>
  38#include <asm/mach/irq.h>
  39
  40#include <mach/hardware.h>
  41#include <mach/board.h>
  42
  43#include "generic.h"
  44
  45
  46static void __init csb337_init_early(void)
  47{
  48        /* Initialize processor: 3.6864 MHz crystal */
  49        at91_initialize(3686400);
  50}
  51
  52static struct macb_platform_data __initdata csb337_eth_data = {
  53        .phy_irq_pin    = AT91_PIN_PC2,
  54        .is_rmii        = 0,
  55};
  56
  57static struct at91_usbh_data __initdata csb337_usbh_data = {
  58        .ports          = 2,
  59        .vbus_pin       = {-EINVAL, -EINVAL},
  60        .overcurrent_pin= {-EINVAL, -EINVAL},
  61};
  62
  63static struct at91_udc_data __initdata csb337_udc_data = {
  64        .pullup_pin     = AT91_PIN_PA24,
  65        .vbus_pin       = -EINVAL,
  66};
  67
  68static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  69        {
  70                I2C_BOARD_INFO("ds1307", 0x68),
  71        },
  72};
  73
  74static struct at91_cf_data __initdata csb337_cf_data = {
  75        /*
  76         * connector P4 on the CSB 337 mates to
  77         * connector P8 on the CSB 300CF
  78         */
  79
  80        /* CSB337 specific */
  81        .det_pin        = AT91_PIN_PC3,
  82
  83        /* CSB300CF specific */
  84        .irq_pin        = AT91_PIN_PA19,
  85        .vcc_pin        = AT91_PIN_PD0,
  86        .rst_pin        = AT91_PIN_PD2,
  87};
  88
  89static struct at91_mmc_data __initdata csb337_mmc_data = {
  90        .det_pin        = AT91_PIN_PD5,
  91        .slot_b         = 0,
  92        .wire4          = 1,
  93        .wp_pin         = AT91_PIN_PD6,
  94        .vcc_pin        = -EINVAL,
  95};
  96
  97static struct spi_board_info csb337_spi_devices[] = {
  98        {       /* CAN controller */
  99                .modalias       = "sak82c900",
 100                .chip_select    = 0,
 101                .max_speed_hz   = 6 * 1000 * 1000,
 102        },
 103};
 104
 105#define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 106#define CSB_FLASH_SIZE  SZ_8M
 107
 108static struct mtd_partition csb_flash_partitions[] = {
 109        {
 110                .name           = "uMON flash",
 111                .offset         = 0,
 112                .size           = MTDPART_SIZ_FULL,
 113                .mask_flags     = MTD_WRITEABLE,        /* read only */
 114        }
 115};
 116
 117static struct physmap_flash_data csb_flash_data = {
 118        .width          = 2,
 119        .parts          = csb_flash_partitions,
 120        .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 121};
 122
 123static struct resource csb_flash_resources[] = {
 124        {
 125                .start  = CSB_FLASH_BASE,
 126                .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 127                .flags  = IORESOURCE_MEM,
 128        }
 129};
 130
 131static struct platform_device csb_flash = {
 132        .name           = "physmap-flash",
 133        .id             = 0,
 134        .dev            = {
 135                                .platform_data = &csb_flash_data,
 136                        },
 137        .resource       = csb_flash_resources,
 138        .num_resources  = ARRAY_SIZE(csb_flash_resources),
 139};
 140
 141/*
 142 * GPIO Buttons (on CSB300)
 143 */
 144#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 145static struct gpio_keys_button csb300_buttons[] = {
 146        {
 147                .gpio           = AT91_PIN_PB29,
 148                .code           = BTN_0,
 149                .desc           = "sw0",
 150                .active_low     = 1,
 151                .wakeup         = 1,
 152        },
 153        {
 154                .gpio           = AT91_PIN_PB28,
 155                .code           = BTN_1,
 156                .desc           = "sw1",
 157                .active_low     = 1,
 158                .wakeup         = 1,
 159        },
 160        {
 161                .gpio           = AT91_PIN_PA21,
 162                .code           = BTN_2,
 163                .desc           = "sw2",
 164                .active_low     = 1,
 165                .wakeup         = 1,
 166        }
 167};
 168
 169static struct gpio_keys_platform_data csb300_button_data = {
 170        .buttons        = csb300_buttons,
 171        .nbuttons       = ARRAY_SIZE(csb300_buttons),
 172};
 173
 174static struct platform_device csb300_button_device = {
 175        .name           = "gpio-keys",
 176        .id             = -1,
 177        .num_resources  = 0,
 178        .dev            = {
 179                .platform_data  = &csb300_button_data,
 180        }
 181};
 182
 183static void __init csb300_add_device_buttons(void)
 184{
 185        at91_set_gpio_input(AT91_PIN_PB29, 1);  /* sw0 */
 186        at91_set_deglitch(AT91_PIN_PB29, 1);
 187        at91_set_gpio_input(AT91_PIN_PB28, 1);  /* sw1 */
 188        at91_set_deglitch(AT91_PIN_PB28, 1);
 189        at91_set_gpio_input(AT91_PIN_PA21, 1);  /* sw2 */
 190        at91_set_deglitch(AT91_PIN_PA21, 1);
 191
 192        platform_device_register(&csb300_button_device);
 193}
 194#else
 195static void __init csb300_add_device_buttons(void) {}
 196#endif
 197
 198static struct gpio_led csb_leds[] = {
 199        {       /* "led0", yellow */
 200                .name                   = "led0",
 201                .gpio                   = AT91_PIN_PB2,
 202                .active_low             = 1,
 203                .default_trigger        = "heartbeat",
 204        },
 205        {       /* "led1", green */
 206                .name                   = "led1",
 207                .gpio                   = AT91_PIN_PB1,
 208                .active_low             = 1,
 209                .default_trigger        = "mmc0",
 210        },
 211        {       /* "led2", yellow */
 212                .name                   = "led2",
 213                .gpio                   = AT91_PIN_PB0,
 214                .active_low             = 1,
 215                .default_trigger        = "ide-disk",
 216        }
 217};
 218
 219
 220static void __init csb337_board_init(void)
 221{
 222        /* Setup the LEDs */
 223        at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
 224        /* Serial */
 225        /* DBGU on ttyS0 */
 226        at91_register_uart(0, 0, 0);
 227        at91_add_device_serial();
 228        /* Ethernet */
 229        at91_add_device_eth(&csb337_eth_data);
 230        /* USB Host */
 231        at91_add_device_usbh(&csb337_usbh_data);
 232        /* USB Device */
 233        at91_add_device_udc(&csb337_udc_data);
 234        /* I2C */
 235        at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 236        /* Compact Flash */
 237        at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 238        at91_add_device_cf(&csb337_cf_data);
 239        /* SPI */
 240        at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 241        /* MMC */
 242        at91_add_device_mmc(0, &csb337_mmc_data);
 243        /* NOR flash */
 244        platform_device_register(&csb_flash);
 245        /* LEDs */
 246        at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 247        /* Switches on CSB300 */
 248        csb300_add_device_buttons();
 249}
 250
 251MACHINE_START(CSB337, "Cogent CSB337")
 252        /* Maintainer: Bill Gatliff */
 253        .timer          = &at91rm9200_timer,
 254        .map_io         = at91_map_io,
 255        .init_early     = csb337_init_early,
 256        .init_irq       = at91_init_irq_default,
 257        .init_machine   = csb337_board_init,
 258MACHINE_END
 259