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
  52 static struct macb_platform_data __initdata csb337_eth_data = {
  53         .phy_irq_pin    = AT91_PIN_PC2,
  54         .is_rmii        = 0,
  55 };
  56
  57 static struct at91_usbh_data __initdata csb337_usbh_data = {
  58         .ports          = 2,
  59         .vbus_pin       = {-EINVAL, -EINVAL},
  60         .overcurrent_pin= {-EINVAL, -EINVAL},
  61 };
  62
  63 static struct at91_udc_data __initdata csb337_udc_data = {
  64         .pullup_pin     = AT91_PIN_PA24,
  65         .vbus_pin       = -EINVAL,
  66 };
  67
  68 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  69         {
  70                 I2C_BOARD_INFO("ds1307", 0x68),
  71         },
  72 };
  73
  74 static 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
  89 static 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
  97 static 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
 108 static 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
 117 static 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
 123 static 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
 131 static 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)
 145 static 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
 169 static struct gpio_keys_platform_data csb300_button_data = {
 170         .buttons        = csb300_buttons,
 171         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 172 };
 173
 174 static 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
 183 static 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
 195 static void __init csb300_add_device_buttons(void) {}
 196 #endif
 197
 198 static 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
 220 static 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
 251 MACHINE_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,
 258 MACHINE_END