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
  42 #include "at91_aic.h"
  43 #include "board.h"
  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         /* The CSB337 bootloader stores the MAC the wrong-way around */
  57         .rev_eth_addr   = 1,
  58 };
  59
  60 static struct at91_usbh_data __initdata csb337_usbh_data = {
  61         .ports          = 2,
  62         .vbus_pin       = {-EINVAL, -EINVAL},
  63         .overcurrent_pin= {-EINVAL, -EINVAL},
  64 };
  65
  66 static struct at91_udc_data __initdata csb337_udc_data = {
  67         .pullup_pin     = AT91_PIN_PA24,
  68         .vbus_pin       = -EINVAL,
  69 };
  70
  71 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  72         {
  73                 I2C_BOARD_INFO("ds1307", 0x68),
  74         },
  75 };
  76
  77 static 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
  92 static 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
 100 static 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
 111 static 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
 120 static 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
 126 static 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
 134 static 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)
 148 static 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
 172 static struct gpio_keys_platform_data csb300_button_data = {
 173         .buttons        = csb300_buttons,
 174         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 175 };
 176
 177 static 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
 186 static 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
 198 static void __init csb300_add_device_buttons(void) {}
 199 #endif
 200
 201 static 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
 223 static 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
 252 MACHINE_START(CSB337, "Cogent CSB337")
 253         /* Maintainer: Bill Gatliff */
 254         .timer          = &at91rm9200_timer,
 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,
 260 MACHINE_END