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        /* 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 struct macb_platform_data __initdata csb337_eth_data = {
  62        .phy_irq_pin    = AT91_PIN_PC2,
  63        .is_rmii        = 0,
  64};
  65
  66static struct at91_usbh_data __initdata csb337_usbh_data = {
  67        .ports          = 2,
  68        .vbus_pin       = {-EINVAL, -EINVAL},
  69        .overcurrent_pin= {-EINVAL, -EINVAL},
  70};
  71
  72static struct at91_udc_data __initdata csb337_udc_data = {
  73        .pullup_pin     = AT91_PIN_PA24,
  74        .vbus_pin       = -EINVAL,
  75};
  76
  77static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  78        {
  79                I2C_BOARD_INFO("ds1307", 0x68),
  80        },
  81};
  82
  83static struct at91_cf_data __initdata csb337_cf_data = {
  84        /*
  85         * connector P4 on the CSB 337 mates to
  86         * connector P8 on the CSB 300CF
  87         */
  88
  89        /* CSB337 specific */
  90        .det_pin        = AT91_PIN_PC3,
  91
  92        /* CSB300CF specific */
  93        .irq_pin        = AT91_PIN_PA19,
  94        .vcc_pin        = AT91_PIN_PD0,
  95        .rst_pin        = AT91_PIN_PD2,
  96};
  97
  98static struct at91_mmc_data __initdata csb337_mmc_data = {
  99        .det_pin        = AT91_PIN_PD5,
 100        .slot_b         = 0,
 101        .wire4          = 1,
 102        .wp_pin         = AT91_PIN_PD6,
 103        .vcc_pin        = -EINVAL,
 104};
 105
 106static struct spi_board_info csb337_spi_devices[] = {
 107        {       /* CAN controller */
 108                .modalias       = "sak82c900",
 109                .chip_select    = 0,
 110                .max_speed_hz   = 6 * 1000 * 1000,
 111        },
 112};
 113
 114#define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 115#define CSB_FLASH_SIZE  SZ_8M
 116
 117static struct mtd_partition csb_flash_partitions[] = {
 118        {
 119                .name           = "uMON flash",
 120                .offset         = 0,
 121                .size           = MTDPART_SIZ_FULL,
 122                .mask_flags     = MTD_WRITEABLE,        /* read only */
 123        }
 124};
 125
 126static struct physmap_flash_data csb_flash_data = {
 127        .width          = 2,
 128        .parts          = csb_flash_partitions,
 129        .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 130};
 131
 132static struct resource csb_flash_resources[] = {
 133        {
 134                .start  = CSB_FLASH_BASE,
 135                .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 136                .flags  = IORESOURCE_MEM,
 137        }
 138};
 139
 140static struct platform_device csb_flash = {
 141        .name           = "physmap-flash",
 142        .id             = 0,
 143        .dev            = {
 144                                .platform_data = &csb_flash_data,
 145                        },
 146        .resource       = csb_flash_resources,
 147        .num_resources  = ARRAY_SIZE(csb_flash_resources),
 148};
 149
 150/*
 151 * GPIO Buttons (on CSB300)
 152 */
 153#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 154static struct gpio_keys_button csb300_buttons[] = {
 155        {
 156                .gpio           = AT91_PIN_PB29,
 157                .code           = BTN_0,
 158                .desc           = "sw0",
 159                .active_low     = 1,
 160                .wakeup         = 1,
 161        },
 162        {
 163                .gpio           = AT91_PIN_PB28,
 164                .code           = BTN_1,
 165                .desc           = "sw1",
 166                .active_low     = 1,
 167                .wakeup         = 1,
 168        },
 169        {
 170                .gpio           = AT91_PIN_PA21,
 171                .code           = BTN_2,
 172                .desc           = "sw2",
 173                .active_low     = 1,
 174                .wakeup         = 1,
 175        }
 176};
 177
 178static struct gpio_keys_platform_data csb300_button_data = {
 179        .buttons        = csb300_buttons,
 180        .nbuttons       = ARRAY_SIZE(csb300_buttons),
 181};
 182
 183static struct platform_device csb300_button_device = {
 184        .name           = "gpio-keys",
 185        .id             = -1,
 186        .num_resources  = 0,
 187        .dev            = {
 188                .platform_data  = &csb300_button_data,
 189        }
 190};
 191
 192static void __init csb300_add_device_buttons(void)
 193{
 194        at91_set_gpio_input(AT91_PIN_PB29, 1);  /* sw0 */
 195        at91_set_deglitch(AT91_PIN_PB29, 1);
 196        at91_set_gpio_input(AT91_PIN_PB28, 1);  /* sw1 */
 197        at91_set_deglitch(AT91_PIN_PB28, 1);
 198        at91_set_gpio_input(AT91_PIN_PA21, 1);  /* sw2 */
 199        at91_set_deglitch(AT91_PIN_PA21, 1);
 200
 201        platform_device_register(&csb300_button_device);
 202}
 203#else
 204static void __init csb300_add_device_buttons(void) {}
 205#endif
 206
 207static struct gpio_led csb_leds[] = {
 208        {       /* "led0", yellow */
 209                .name                   = "led0",
 210                .gpio                   = AT91_PIN_PB2,
 211                .active_low             = 1,
 212                .default_trigger        = "heartbeat",
 213        },
 214        {       /* "led1", green */
 215                .name                   = "led1",
 216                .gpio                   = AT91_PIN_PB1,
 217                .active_low             = 1,
 218                .default_trigger        = "mmc0",
 219        },
 220        {       /* "led2", yellow */
 221                .name                   = "led2",
 222                .gpio                   = AT91_PIN_PB0,
 223                .active_low             = 1,
 224                .default_trigger        = "ide-disk",
 225        }
 226};
 227
 228
 229static void __init csb337_board_init(void)
 230{
 231        /* Serial */
 232        at91_add_device_serial();
 233        /* Ethernet */
 234        at91_add_device_eth(&csb337_eth_data);
 235        /* USB Host */
 236        at91_add_device_usbh(&csb337_usbh_data);
 237        /* USB Device */
 238        at91_add_device_udc(&csb337_udc_data);
 239        /* I2C */
 240        at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 241        /* Compact Flash */
 242        at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 243        at91_add_device_cf(&csb337_cf_data);
 244        /* SPI */
 245        at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 246        /* MMC */
 247        at91_add_device_mmc(0, &csb337_mmc_data);
 248        /* NOR flash */
 249        platform_device_register(&csb_flash);
 250        /* LEDs */
 251        at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 252        /* Switches on CSB300 */
 253        csb300_add_device_buttons();
 254}
 255
 256MACHINE_START(CSB337, "Cogent CSB337")
 257        /* Maintainer: Bill Gatliff */
 258        .timer          = &at91rm9200_timer,
 259        .map_io         = at91_map_io,
 260        .init_early     = csb337_init_early,
 261        .init_irq       = at91_init_irq_default,
 262        .init_machine   = csb337_board_init,
 263MACHINE_END
 264