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
  42#include "at91_aic.h"
  43#include "board.h"
  44#include "generic.h"
  45
  46
  47static void __init csb337_init_early(void)
  48{
  49        /* Initialize processor: 3.6864 MHz crystal */
  50        at91_initialize(3686400);
  51}
  52
  53static struct macb_platform_data __initdata csb337_eth_data = {
  54        .phy_irq_pin    = AT91_PIN_PC2,
  55        .is_rmii        = 0,
  56        /* The CSB337 bootloader stores the MAC the wrong-way around */
  57        .rev_eth_addr   = 1,
  58};
  59
  60static struct at91_usbh_data __initdata csb337_usbh_data = {
  61        .ports          = 2,
  62        .vbus_pin       = {-EINVAL, -EINVAL},
  63        .overcurrent_pin= {-EINVAL, -EINVAL},
  64};
  65
  66static struct at91_udc_data __initdata csb337_udc_data = {
  67        .pullup_pin     = AT91_PIN_PA24,
  68        .vbus_pin       = -EINVAL,
  69};
  70
  71static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  72        {
  73                I2C_BOARD_INFO("ds1307", 0x68),
  74        },
  75};
  76
  77static struct at91_cf_data __initdata csb337_cf_data = {
  78        /*
  79         * connector P4 on the CSB 337 mates to
  80         * connector P8 on the CSB 300CF
  81         */
  82
  83        /* CSB337 specific */
  84        .det_pin        = AT91_PIN_PC3,
  85
  86        /* CSB300CF specific */
  87        .irq_pin        = AT91_PIN_PA19,
  88        .vcc_pin        = AT91_PIN_PD0,
  89        .rst_pin        = AT91_PIN_PD2,
  90};
  91
  92static struct mci_platform_data __initdata csb337_mci0_data = {
  93        .slot[0] = {
  94                .bus_width      = 4,
  95                .detect_pin     = AT91_PIN_PD5,
  96                .wp_pin         = AT91_PIN_PD6,
  97        },
  98};
  99
 100static struct spi_board_info csb337_spi_devices[] = {
 101        {       /* CAN controller */
 102                .modalias       = "sak82c900",
 103                .chip_select    = 0,
 104                .max_speed_hz   = 6 * 1000 * 1000,
 105        },
 106};
 107
 108#define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 109#define CSB_FLASH_SIZE  SZ_8M
 110
 111static struct mtd_partition csb_flash_partitions[] = {
 112        {
 113                .name           = "uMON flash",
 114                .offset         = 0,
 115                .size           = MTDPART_SIZ_FULL,
 116                .mask_flags     = MTD_WRITEABLE,        /* read only */
 117        }
 118};
 119
 120static struct physmap_flash_data csb_flash_data = {
 121        .width          = 2,
 122        .parts          = csb_flash_partitions,
 123        .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 124};
 125
 126static struct resource csb_flash_resources[] = {
 127        {
 128                .start  = CSB_FLASH_BASE,
 129                .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 130                .flags  = IORESOURCE_MEM,
 131        }
 132};
 133
 134static struct platform_device csb_flash = {
 135        .name           = "physmap-flash",
 136        .id             = 0,
 137        .dev            = {
 138                                .platform_data = &csb_flash_data,
 139                        },
 140        .resource       = csb_flash_resources,
 141        .num_resources  = ARRAY_SIZE(csb_flash_resources),
 142};
 143
 144/*
 145 * GPIO Buttons (on CSB300)
 146 */
 147#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 148static struct gpio_keys_button csb300_buttons[] = {
 149        {
 150                .gpio           = AT91_PIN_PB29,
 151                .code           = BTN_0,
 152                .desc           = "sw0",
 153                .active_low     = 1,
 154                .wakeup         = 1,
 155        },
 156        {
 157                .gpio           = AT91_PIN_PB28,
 158                .code           = BTN_1,
 159                .desc           = "sw1",
 160                .active_low     = 1,
 161                .wakeup         = 1,
 162        },
 163        {
 164                .gpio           = AT91_PIN_PA21,
 165                .code           = BTN_2,
 166                .desc           = "sw2",
 167                .active_low     = 1,
 168                .wakeup         = 1,
 169        }
 170};
 171
 172static struct gpio_keys_platform_data csb300_button_data = {
 173        .buttons        = csb300_buttons,
 174        .nbuttons       = ARRAY_SIZE(csb300_buttons),
 175};
 176
 177static struct platform_device csb300_button_device = {
 178        .name           = "gpio-keys",
 179        .id             = -1,
 180        .num_resources  = 0,
 181        .dev            = {
 182                .platform_data  = &csb300_button_data,
 183        }
 184};
 185
 186static void __init csb300_add_device_buttons(void)
 187{
 188        at91_set_gpio_input(AT91_PIN_PB29, 1);  /* sw0 */
 189        at91_set_deglitch(AT91_PIN_PB29, 1);
 190        at91_set_gpio_input(AT91_PIN_PB28, 1);  /* sw1 */
 191        at91_set_deglitch(AT91_PIN_PB28, 1);
 192        at91_set_gpio_input(AT91_PIN_PA21, 1);  /* sw2 */
 193        at91_set_deglitch(AT91_PIN_PA21, 1);
 194
 195        platform_device_register(&csb300_button_device);
 196}
 197#else
 198static void __init csb300_add_device_buttons(void) {}
 199#endif
 200
 201static struct gpio_led csb_leds[] = {
 202        {       /* "led0", yellow */
 203                .name                   = "led0",
 204                .gpio                   = AT91_PIN_PB2,
 205                .active_low             = 1,
 206                .default_trigger        = "heartbeat",
 207        },
 208        {       /* "led1", green */
 209                .name                   = "led1",
 210                .gpio                   = AT91_PIN_PB1,
 211                .active_low             = 1,
 212                .default_trigger        = "mmc0",
 213        },
 214        {       /* "led2", yellow */
 215                .name                   = "led2",
 216                .gpio                   = AT91_PIN_PB0,
 217                .active_low             = 1,
 218                .default_trigger        = "ide-disk",
 219        }
 220};
 221
 222
 223static void __init csb337_board_init(void)
 224{
 225        /* Serial */
 226        /* DBGU on ttyS0 */
 227        at91_register_uart(0, 0, 0);
 228        at91_add_device_serial();
 229        /* Ethernet */
 230        at91_add_device_eth(&csb337_eth_data);
 231        /* USB Host */
 232        at91_add_device_usbh(&csb337_usbh_data);
 233        /* USB Device */
 234        at91_add_device_udc(&csb337_udc_data);
 235        /* I2C */
 236        at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 237        /* Compact Flash */
 238        at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 239        at91_add_device_cf(&csb337_cf_data);
 240        /* SPI */
 241        at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 242        /* MMC */
 243        at91_add_device_mci(0, &csb337_mci0_data);
 244        /* NOR flash */
 245        platform_device_register(&csb_flash);
 246        /* LEDs */
 247        at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 248        /* Switches on CSB300 */
 249        csb300_add_device_buttons();
 250}
 251
 252MACHINE_START(CSB337, "Cogent CSB337")
 253        /* Maintainer: Bill Gatliff */
 254        .init_time      = at91rm9200_timer_init,
 255        .map_io         = at91_map_io,
 256        .handle_irq     = at91_aic_handle_irq,
 257        .init_early     = csb337_init_early,
 258        .init_irq       = at91_init_irq_default,
 259        .init_machine   = csb337_board_init,
 260MACHINE_END
 261