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/hardware.h>
  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 <asm/arch/board.h>
  41 #include <asm/arch/gpio.h>
  42
  43 #include "generic.h"
  44
  45
  46 /*
  47  * Serial port configuration.
  48  *    0 .. 3 = USART0 .. USART3
  49  *    4      = DBGU
  50  */
  51 static struct at91_uart_config __initdata csb337_uart_config = {
  52         .console_tty    = 0,                            /* ttyS0 */
  53         .nr_tty         = 2,
  54         .tty_map        = { 4, 1, -1, -1, -1 }          /* ttyS0, ..., ttyS4 */
  55 };
  56
  57 static void __init csb337_map_io(void)
  58 {
  59         /* Initialize processor: 3.6864 MHz crystal */
  60         at91rm9200_initialize(3686400, AT91RM9200_BGA);
  61
  62         /* Setup the LEDs */
  63         at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
  64
  65         /* Setup the serial ports and console */
  66         at91_init_serial(&csb337_uart_config);
  67 }
  68
  69 static void __init csb337_init_irq(void)
  70 {
  71         at91rm9200_init_interrupts(NULL);
  72 }
  73
  74 static struct at91_eth_data __initdata csb337_eth_data = {
  75         .phy_irq_pin    = AT91_PIN_PC2,
  76         .is_rmii        = 0,
  77 };
  78
  79 static struct at91_usbh_data __initdata csb337_usbh_data = {
  80         .ports          = 2,
  81 };
  82
  83 static struct at91_udc_data __initdata csb337_udc_data = {
  84         // this has no VBUS sensing pin
  85         .pullup_pin     = AT91_PIN_PA24,
  86 };
  87
  88 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  89         {
  90                 I2C_BOARD_INFO("rtc-ds1307", 0x68),
  91                 .type   = "ds1307",
  92         },
  93 };
  94
  95 static struct at91_cf_data __initdata csb337_cf_data = {
  96         /*
  97          * connector P4 on the CSB 337 mates to
  98          * connector P8 on the CSB 300CF
  99          */
 100
 101         /* CSB337 specific */
 102         .det_pin        = AT91_PIN_PC3,
 103
 104         /* CSB300CF specific */
 105         .irq_pin        = AT91_PIN_PA19,
 106         .vcc_pin        = AT91_PIN_PD0,
 107         .rst_pin        = AT91_PIN_PD2,
 108 };
 109
 110 static struct at91_mmc_data __initdata csb337_mmc_data = {
 111         .det_pin        = AT91_PIN_PD5,
 112         .slot_b         = 0,
 113         .wire4          = 1,
 114         .wp_pin         = AT91_PIN_PD6,
 115 };
 116
 117 static struct spi_board_info csb337_spi_devices[] = {
 118         {       /* CAN controller */
 119                 .modalias       = "sak82c900",
 120                 .chip_select    = 0,
 121                 .max_speed_hz   = 6 * 1000 * 1000,
 122         },
 123 };
 124
 125 #define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 126 #define CSB_FLASH_SIZE  0x800000
 127
 128 static struct mtd_partition csb_flash_partitions[] = {
 129         {
 130                 .name           = "uMON flash",
 131                 .offset         = 0,
 132                 .size           = MTDPART_SIZ_FULL,
 133                 .mask_flags     = MTD_WRITEABLE,        /* read only */
 134         }
 135 };
 136
 137 static struct physmap_flash_data csb_flash_data = {
 138         .width          = 2,
 139         .parts          = csb_flash_partitions,
 140         .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 141 };
 142
 143 static struct resource csb_flash_resources[] = {
 144         {
 145                 .start  = CSB_FLASH_BASE,
 146                 .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 147                 .flags  = IORESOURCE_MEM,
 148         }
 149 };
 150
 151 static struct platform_device csb_flash = {
 152         .name           = "physmap-flash",
 153         .id             = 0,
 154         .dev            = {
 155                                 .platform_data = &csb_flash_data,
 156                         },
 157         .resource       = csb_flash_resources,
 158         .num_resources  = ARRAY_SIZE(csb_flash_resources),
 159 };
 160
 161 /*
 162  * GPIO Buttons (on CSB300)
 163  */
 164 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 165 static struct gpio_keys_button csb300_buttons[] = {
 166         {
 167                 .gpio           = AT91_PIN_PB29,
 168                 .code           = BTN_0,
 169                 .desc           = "sw0",
 170                 .active_low     = 1,
 171                 .wakeup         = 1,
 172         },
 173         {
 174                 .gpio           = AT91_PIN_PB28,
 175                 .code           = BTN_1,
 176                 .desc           = "sw1",
 177                 .active_low     = 1,
 178                 .wakeup         = 1,
 179         },
 180         {
 181                 .gpio           = AT91_PIN_PA21,
 182                 .code           = BTN_2,
 183                 .desc           = "sw2",
 184                 .active_low     = 1,
 185                 .wakeup         = 1,
 186         }
 187 };
 188
 189 static struct gpio_keys_platform_data csb300_button_data = {
 190         .buttons        = csb300_buttons,
 191         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 192 };
 193
 194 static struct platform_device csb300_button_device = {
 195         .name           = "gpio-keys",
 196         .id             = -1,
 197         .num_resources  = 0,
 198         .dev            = {
 199                 .platform_data  = &csb300_button_data,
 200         }
 201 };
 202
 203 static void __init csb300_add_device_buttons(void)
 204 {
 205         at91_set_gpio_input(AT91_PIN_PB29, 0);  /* sw0 */
 206         at91_set_deglitch(AT91_PIN_PB29, 1);
 207         at91_set_gpio_input(AT91_PIN_PB28, 0);  /* sw1 */
 208         at91_set_deglitch(AT91_PIN_PB28, 1);
 209         at91_set_gpio_input(AT91_PIN_PA21, 0);  /* sw2 */
 210         at91_set_deglitch(AT91_PIN_PA21, 1);
 211
 212         platform_device_register(&csb300_button_device);
 213 }
 214 #else
 215 static void __init csb300_add_device_buttons(void) {}
 216 #endif
 217
 218 static struct gpio_led csb_leds[] = {
 219         {       /* "led0", yellow */
 220                 .name                   = "led0",
 221                 .gpio                   = AT91_PIN_PB2,
 222                 .active_low             = 1,
 223                 .default_trigger        = "heartbeat",
 224         },
 225         {       /* "led1", green */
 226                 .name                   = "led1",
 227                 .gpio                   = AT91_PIN_PB1,
 228                 .active_low             = 1,
 229                 .default_trigger        = "mmc0",
 230         },
 231         {       /* "led2", yellow */
 232                 .name                   = "led2",
 233                 .gpio                   = AT91_PIN_PB0,
 234                 .active_low             = 1,
 235                 .default_trigger        = "ide-disk",
 236         },
 237 };
 238
 239
 240 static void __init csb337_board_init(void)
 241 {
 242         /* Serial */
 243         at91_add_device_serial();
 244         /* Ethernet */
 245         at91_add_device_eth(&csb337_eth_data);
 246         /* USB Host */
 247         at91_add_device_usbh(&csb337_usbh_data);
 248         /* USB Device */
 249         at91_add_device_udc(&csb337_udc_data);
 250         /* I2C */
 251         at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 252         /* Compact Flash */
 253         at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 254         at91_add_device_cf(&csb337_cf_data);
 255         /* SPI */
 256         at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 257         /* MMC */
 258         at91_add_device_mmc(0, &csb337_mmc_data);
 259         /* NOR flash */
 260         platform_device_register(&csb_flash);
 261         /* LEDs */
 262         at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 263         /* Switches on CSB300 */
 264         csb300_add_device_buttons();
 265 }
 266
 267 MACHINE_START(CSB337, "Cogent CSB337")
 268         /* Maintainer: Bill Gatliff */
 269         .phys_io        = AT91_BASE_SYS,
 270         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 271         .boot_params    = AT91_SDRAM_BASE + 0x100,
 272         .timer          = &at91rm9200_timer,
 273         .map_io         = csb337_map_io,
 274         .init_irq       = csb337_init_irq,
 275         .init_machine   = csb337_board_init,
 276 MACHINE_END