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 #include <mach/at91_aic.h>
  43
  44 #include "generic.h"
  45
  46
  47 static void __init csb337_init_early(void)
  48 {
  49         /* Initialize processor: 3.6864 MHz crystal */
  50         at91_initialize(3686400);
  51 }
  52
  53 static struct macb_platform_data __initdata csb337_eth_data = {
  54         .phy_irq_pin    = AT91_PIN_PC2,
  55         .is_rmii        = 0,
  56 };
  57
  58 static struct at91_usbh_data __initdata csb337_usbh_data = {
  59         .ports          = 2,
  60         .vbus_pin       = {-EINVAL, -EINVAL},
  61         .overcurrent_pin= {-EINVAL, -EINVAL},
  62 };
  63
  64 static struct at91_udc_data __initdata csb337_udc_data = {
  65         .pullup_pin     = AT91_PIN_PA24,
  66         .vbus_pin       = -EINVAL,
  67 };
  68
  69 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  70         {
  71                 I2C_BOARD_INFO("ds1307", 0x68),
  72         },
  73 };
  74
  75 static struct at91_cf_data __initdata csb337_cf_data = {
  76         /*
  77          * connector P4 on the CSB 337 mates to
  78          * connector P8 on the CSB 300CF
  79          */
  80
  81         /* CSB337 specific */
  82         .det_pin        = AT91_PIN_PC3,
  83
  84         /* CSB300CF specific */
  85         .irq_pin        = AT91_PIN_PA19,
  86         .vcc_pin        = AT91_PIN_PD0,
  87         .rst_pin        = AT91_PIN_PD2,
  88 };
  89
  90 static struct at91_mmc_data __initdata csb337_mmc_data = {
  91         .det_pin        = AT91_PIN_PD5,
  92         .slot_b         = 0,
  93         .wire4          = 1,
  94         .wp_pin         = AT91_PIN_PD6,
  95         .vcc_pin        = -EINVAL,
  96 };
  97
  98 static struct spi_board_info csb337_spi_devices[] = {
  99         {       /* CAN controller */
 100                 .modalias       = "sak82c900",
 101                 .chip_select    = 0,
 102                 .max_speed_hz   = 6 * 1000 * 1000,
 103         },
 104 };
 105
 106 #define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 107 #define CSB_FLASH_SIZE  SZ_8M
 108
 109 static struct mtd_partition csb_flash_partitions[] = {
 110         {
 111                 .name           = "uMON flash",
 112                 .offset         = 0,
 113                 .size           = MTDPART_SIZ_FULL,
 114                 .mask_flags     = MTD_WRITEABLE,        /* read only */
 115         }
 116 };
 117
 118 static struct physmap_flash_data csb_flash_data = {
 119         .width          = 2,
 120         .parts          = csb_flash_partitions,
 121         .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 122 };
 123
 124 static struct resource csb_flash_resources[] = {
 125         {
 126                 .start  = CSB_FLASH_BASE,
 127                 .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 128                 .flags  = IORESOURCE_MEM,
 129         }
 130 };
 131
 132 static struct platform_device csb_flash = {
 133         .name           = "physmap-flash",
 134         .id             = 0,
 135         .dev            = {
 136                                 .platform_data = &csb_flash_data,
 137                         },
 138         .resource       = csb_flash_resources,
 139         .num_resources  = ARRAY_SIZE(csb_flash_resources),
 140 };
 141
 142 /*
 143  * GPIO Buttons (on CSB300)
 144  */
 145 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 146 static struct gpio_keys_button csb300_buttons[] = {
 147         {
 148                 .gpio           = AT91_PIN_PB29,
 149                 .code           = BTN_0,
 150                 .desc           = "sw0",
 151                 .active_low     = 1,
 152                 .wakeup         = 1,
 153         },
 154         {
 155                 .gpio           = AT91_PIN_PB28,
 156                 .code           = BTN_1,
 157                 .desc           = "sw1",
 158                 .active_low     = 1,
 159                 .wakeup         = 1,
 160         },
 161         {
 162                 .gpio           = AT91_PIN_PA21,
 163                 .code           = BTN_2,
 164                 .desc           = "sw2",
 165                 .active_low     = 1,
 166                 .wakeup         = 1,
 167         }
 168 };
 169
 170 static struct gpio_keys_platform_data csb300_button_data = {
 171         .buttons        = csb300_buttons,
 172         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 173 };
 174
 175 static struct platform_device csb300_button_device = {
 176         .name           = "gpio-keys",
 177         .id             = -1,
 178         .num_resources  = 0,
 179         .dev            = {
 180                 .platform_data  = &csb300_button_data,
 181         }
 182 };
 183
 184 static void __init csb300_add_device_buttons(void)
 185 {
 186         at91_set_gpio_input(AT91_PIN_PB29, 1);  /* sw0 */
 187         at91_set_deglitch(AT91_PIN_PB29, 1);
 188         at91_set_gpio_input(AT91_PIN_PB28, 1);  /* sw1 */
 189         at91_set_deglitch(AT91_PIN_PB28, 1);
 190         at91_set_gpio_input(AT91_PIN_PA21, 1);  /* sw2 */
 191         at91_set_deglitch(AT91_PIN_PA21, 1);
 192
 193         platform_device_register(&csb300_button_device);
 194 }
 195 #else
 196 static void __init csb300_add_device_buttons(void) {}
 197 #endif
 198
 199 static struct gpio_led csb_leds[] = {
 200         {       /* "led0", yellow */
 201                 .name                   = "led0",
 202                 .gpio                   = AT91_PIN_PB2,
 203                 .active_low             = 1,
 204                 .default_trigger        = "heartbeat",
 205         },
 206         {       /* "led1", green */
 207                 .name                   = "led1",
 208                 .gpio                   = AT91_PIN_PB1,
 209                 .active_low             = 1,
 210                 .default_trigger        = "mmc0",
 211         },
 212         {       /* "led2", yellow */
 213                 .name                   = "led2",
 214                 .gpio                   = AT91_PIN_PB0,
 215                 .active_low             = 1,
 216                 .default_trigger        = "ide-disk",
 217         }
 218 };
 219
 220
 221 static void __init csb337_board_init(void)
 222 {
 223         /* Serial */
 224         /* DBGU on ttyS0 */
 225         at91_register_uart(0, 0, 0);
 226         at91_add_device_serial();
 227         /* Ethernet */
 228         at91_add_device_eth(&csb337_eth_data);
 229         /* USB Host */
 230         at91_add_device_usbh(&csb337_usbh_data);
 231         /* USB Device */
 232         at91_add_device_udc(&csb337_udc_data);
 233         /* I2C */
 234         at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 235         /* Compact Flash */
 236         at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 237         at91_add_device_cf(&csb337_cf_data);
 238         /* SPI */
 239         at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 240         /* MMC */
 241         at91_add_device_mmc(0, &csb337_mmc_data);
 242         /* NOR flash */
 243         platform_device_register(&csb_flash);
 244         /* LEDs */
 245         at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 246         /* Switches on CSB300 */
 247         csb300_add_device_buttons();
 248 }
 249
 250 MACHINE_START(CSB337, "Cogent CSB337")
 251         /* Maintainer: Bill Gatliff */
 252         .timer          = &at91rm9200_timer,
 253         .map_io         = at91_map_io,
 254         .handle_irq     = at91_aic_handle_irq,
 255         .init_early     = csb337_init_early,
 256         .init_irq       = at91_init_irq_default,
 257         .init_machine   = csb337_board_init,
 258 MACHINE_END