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/init.h>
  23 #include <linux/mm.h>
  24 #include <linux/module.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/spi/spi.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <linux/input.h>
  29 #include <linux/gpio_keys.h>
  30
  31 #include <asm/setup.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/irq.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/irq.h>
  38
  39 #include <mach/hardware.h>
  40 #include <mach/board.h>
  41 #include <mach/gpio.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 at91_eth_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 };
  69
  70 static struct at91_udc_data __initdata csb337_udc_data = {
  71         // this has no VBUS sensing pin
  72         .pullup_pin     = AT91_PIN_PA24,
  73 };
  74
  75 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  76         {
  77                 I2C_BOARD_INFO("ds1307", 0x68),
  78         },
  79 };
  80
  81 static struct at91_cf_data __initdata csb337_cf_data = {
  82         /*
  83          * connector P4 on the CSB 337 mates to
  84          * connector P8 on the CSB 300CF
  85          */
  86
  87         /* CSB337 specific */
  88         .det_pin        = AT91_PIN_PC3,
  89
  90         /* CSB300CF specific */
  91         .irq_pin        = AT91_PIN_PA19,
  92         .vcc_pin        = AT91_PIN_PD0,
  93         .rst_pin        = AT91_PIN_PD2,
  94 };
  95
  96 static struct at91_mmc_data __initdata csb337_mmc_data = {
  97         .det_pin        = AT91_PIN_PD5,
  98         .slot_b         = 0,
  99         .wire4          = 1,
 100         .wp_pin         = AT91_PIN_PD6,
 101 };
 102
 103 static struct spi_board_info csb337_spi_devices[] = {
 104         {       /* CAN controller */
 105                 .modalias       = "sak82c900",
 106                 .chip_select    = 0,
 107                 .max_speed_hz   = 6 * 1000 * 1000,
 108         },
 109 };
 110
 111 #define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 112 #define CSB_FLASH_SIZE  SZ_8M
 113
 114 static struct mtd_partition csb_flash_partitions[] = {
 115         {
 116                 .name           = "uMON flash",
 117                 .offset         = 0,
 118                 .size           = MTDPART_SIZ_FULL,
 119                 .mask_flags     = MTD_WRITEABLE,        /* read only */
 120         }
 121 };
 122
 123 static struct physmap_flash_data csb_flash_data = {
 124         .width          = 2,
 125         .parts          = csb_flash_partitions,
 126         .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 127 };
 128
 129 static struct resource csb_flash_resources[] = {
 130         {
 131                 .start  = CSB_FLASH_BASE,
 132                 .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 133                 .flags  = IORESOURCE_MEM,
 134         }
 135 };
 136
 137 static struct platform_device csb_flash = {
 138         .name           = "physmap-flash",
 139         .id             = 0,
 140         .dev            = {
 141                                 .platform_data = &csb_flash_data,
 142                         },
 143         .resource       = csb_flash_resources,
 144         .num_resources  = ARRAY_SIZE(csb_flash_resources),
 145 };
 146
 147 /*
 148  * GPIO Buttons (on CSB300)
 149  */
 150 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 151 static struct gpio_keys_button csb300_buttons[] = {
 152         {
 153                 .gpio           = AT91_PIN_PB29,
 154                 .code           = BTN_0,
 155                 .desc           = "sw0",
 156                 .active_low     = 1,
 157                 .wakeup         = 1,
 158         },
 159         {
 160                 .gpio           = AT91_PIN_PB28,
 161                 .code           = BTN_1,
 162                 .desc           = "sw1",
 163                 .active_low     = 1,
 164                 .wakeup         = 1,
 165         },
 166         {
 167                 .gpio           = AT91_PIN_PA21,
 168                 .code           = BTN_2,
 169                 .desc           = "sw2",
 170                 .active_low     = 1,
 171                 .wakeup         = 1,
 172         }
 173 };
 174
 175 static struct gpio_keys_platform_data csb300_button_data = {
 176         .buttons        = csb300_buttons,
 177         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 178 };
 179
 180 static struct platform_device csb300_button_device = {
 181         .name           = "gpio-keys",
 182         .id             = -1,
 183         .num_resources  = 0,
 184         .dev            = {
 185                 .platform_data  = &csb300_button_data,
 186         }
 187 };
 188
 189 static void __init csb300_add_device_buttons(void)
 190 {
 191         at91_set_gpio_input(AT91_PIN_PB29, 1);  /* sw0 */
 192         at91_set_deglitch(AT91_PIN_PB29, 1);
 193         at91_set_gpio_input(AT91_PIN_PB28, 1);  /* sw1 */
 194         at91_set_deglitch(AT91_PIN_PB28, 1);
 195         at91_set_gpio_input(AT91_PIN_PA21, 1);  /* sw2 */
 196         at91_set_deglitch(AT91_PIN_PA21, 1);
 197
 198         platform_device_register(&csb300_button_device);
 199 }
 200 #else
 201 static void __init csb300_add_device_buttons(void) {}
 202 #endif
 203
 204 static struct gpio_led csb_leds[] = {
 205         {       /* "led0", yellow */
 206                 .name                   = "led0",
 207                 .gpio                   = AT91_PIN_PB2,
 208                 .active_low             = 1,
 209                 .default_trigger        = "heartbeat",
 210         },
 211         {       /* "led1", green */
 212                 .name                   = "led1",
 213                 .gpio                   = AT91_PIN_PB1,
 214                 .active_low             = 1,
 215                 .default_trigger        = "mmc0",
 216         },
 217         {       /* "led2", yellow */
 218                 .name                   = "led2",
 219                 .gpio                   = AT91_PIN_PB0,
 220                 .active_low             = 1,
 221                 .default_trigger        = "ide-disk",
 222         }
 223 };
 224
 225
 226 static void __init csb337_board_init(void)
 227 {
 228         /* Serial */
 229         at91_add_device_serial();
 230         /* Ethernet */
 231         at91_add_device_eth(&csb337_eth_data);
 232         /* USB Host */
 233         at91_add_device_usbh(&csb337_usbh_data);
 234         /* USB Device */
 235         at91_add_device_udc(&csb337_udc_data);
 236         /* I2C */
 237         at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 238         /* Compact Flash */
 239         at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 240         at91_add_device_cf(&csb337_cf_data);
 241         /* SPI */
 242         at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 243         /* MMC */
 244         at91_add_device_mmc(0, &csb337_mmc_data);
 245         /* NOR flash */
 246         platform_device_register(&csb_flash);
 247         /* LEDs */
 248         at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 249         /* Switches on CSB300 */
 250         csb300_add_device_buttons();
 251 }
 252
 253 MACHINE_START(CSB337, "Cogent CSB337")
 254         /* Maintainer: Bill Gatliff */
 255         .timer          = &at91rm9200_timer,
 256         .map_io         = at91_map_io,
 257         .init_early     = csb337_init_early,
 258         .init_irq       = at91_init_irq_default,
 259         .init_machine   = csb337_board_init,
 260 MACHINE_END