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/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
  46 static 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
  61 static struct macb_platform_data __initdata csb337_eth_data = {
  62         .phy_irq_pin    = AT91_PIN_PC2,
  63         .is_rmii        = 0,
  64 };
  65
  66 static struct at91_usbh_data __initdata csb337_usbh_data = {
  67         .ports          = 2,
  68         .vbus_pin       = {-EINVAL, -EINVAL},
  69         .overcurrent_pin= {-EINVAL, -EINVAL},
  70 };
  71
  72 static struct at91_udc_data __initdata csb337_udc_data = {
  73         .pullup_pin     = AT91_PIN_PA24,
  74         .vbus_pin       = -EINVAL,
  75 };
  76
  77 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  78         {
  79                 I2C_BOARD_INFO("ds1307", 0x68),
  80         },
  81 };
  82
  83 static 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
  98 static 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
 106 static 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
 117 static 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
 126 static 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
 132 static 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
 140 static 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)
 154 static 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
 178 static struct gpio_keys_platform_data csb300_button_data = {
 179         .buttons        = csb300_buttons,
 180         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 181 };
 182
 183 static 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
 192 static 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
 204 static void __init csb300_add_device_buttons(void) {}
 205 #endif
 206
 207 static 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
 229 static 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
 256 MACHINE_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,
 263 MACHINE_END