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 <mach/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 <mach/board.h>
  41 #include <mach/gpio.h>
  42
  43 #include "generic.h"
  44
  45
  46 static void __init csb337_map_io(void)
  47 {
  48         /* Initialize processor: 3.6864 MHz crystal */
  49         at91rm9200_initialize(3686400, AT91RM9200_BGA);
  50
  51         /* Setup the LEDs */
  52         at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
  53
  54         /* Setup the serial ports and console */
  55         at91_init_uarts();
  56 }
  57
  58 static void __init csb337_init_irq(void)
  59 {
  60         at91rm9200_init_interrupts(NULL);
  61 }
  62
  63 static struct at91_eth_data __initdata csb337_eth_data = {
  64         .phy_irq_pin    = AT91_PIN_PC2,
  65         .is_rmii        = 0,
  66 };
  67
  68 static struct at91_usbh_data __initdata csb337_usbh_data = {
  69         .ports          = 2,
  70 };
  71
  72 static struct at91_udc_data __initdata csb337_udc_data = {
  73         // this has no VBUS sensing pin
  74         .pullup_pin     = AT91_PIN_PA24,
  75 };
  76
  77 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
  78         {
  79                 I2C_BOARD_INFO("ds1307", 0x68),
  80         },
  81 };
  82
  83 static struct at91_cf_data __initdata csb337_cf_data = {
  84         /*
  85          * connector P4 on the CSB 337 mates to
  86          * connector P8 on the CSB 300CF
  87          */
  88
  89         /* CSB337 specific */
  90         .det_pin        = AT91_PIN_PC3,
  91
  92         /* CSB300CF specific */
  93         .irq_pin        = AT91_PIN_PA19,
  94         .vcc_pin        = AT91_PIN_PD0,
  95         .rst_pin        = AT91_PIN_PD2,
  96 };
  97
  98 static struct at91_mmc_data __initdata csb337_mmc_data = {
  99         .det_pin        = AT91_PIN_PD5,
 100         .slot_b         = 0,
 101         .wire4          = 1,
 102         .wp_pin         = AT91_PIN_PD6,
 103 };
 104
 105 static struct spi_board_info csb337_spi_devices[] = {
 106         {       /* CAN controller */
 107                 .modalias       = "sak82c900",
 108                 .chip_select    = 0,
 109                 .max_speed_hz   = 6 * 1000 * 1000,
 110         },
 111 };
 112
 113 #define CSB_FLASH_BASE  AT91_CHIPSELECT_0
 114 #define CSB_FLASH_SIZE  0x800000
 115
 116 static struct mtd_partition csb_flash_partitions[] = {
 117         {
 118                 .name           = "uMON flash",
 119                 .offset         = 0,
 120                 .size           = MTDPART_SIZ_FULL,
 121                 .mask_flags     = MTD_WRITEABLE,        /* read only */
 122         }
 123 };
 124
 125 static struct physmap_flash_data csb_flash_data = {
 126         .width          = 2,
 127         .parts          = csb_flash_partitions,
 128         .nr_parts       = ARRAY_SIZE(csb_flash_partitions),
 129 };
 130
 131 static struct resource csb_flash_resources[] = {
 132         {
 133                 .start  = CSB_FLASH_BASE,
 134                 .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
 135                 .flags  = IORESOURCE_MEM,
 136         }
 137 };
 138
 139 static struct platform_device csb_flash = {
 140         .name           = "physmap-flash",
 141         .id             = 0,
 142         .dev            = {
 143                                 .platform_data = &csb_flash_data,
 144                         },
 145         .resource       = csb_flash_resources,
 146         .num_resources  = ARRAY_SIZE(csb_flash_resources),
 147 };
 148
 149 /*
 150  * GPIO Buttons (on CSB300)
 151  */
 152 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 153 static struct gpio_keys_button csb300_buttons[] = {
 154         {
 155                 .gpio           = AT91_PIN_PB29,
 156                 .code           = BTN_0,
 157                 .desc           = "sw0",
 158                 .active_low     = 1,
 159                 .wakeup         = 1,
 160         },
 161         {
 162                 .gpio           = AT91_PIN_PB28,
 163                 .code           = BTN_1,
 164                 .desc           = "sw1",
 165                 .active_low     = 1,
 166                 .wakeup         = 1,
 167         },
 168         {
 169                 .gpio           = AT91_PIN_PA21,
 170                 .code           = BTN_2,
 171                 .desc           = "sw2",
 172                 .active_low     = 1,
 173                 .wakeup         = 1,
 174         }
 175 };
 176
 177 static struct gpio_keys_platform_data csb300_button_data = {
 178         .buttons        = csb300_buttons,
 179         .nbuttons       = ARRAY_SIZE(csb300_buttons),
 180 };
 181
 182 static struct platform_device csb300_button_device = {
 183         .name           = "gpio-keys",
 184         .id             = -1,
 185         .num_resources  = 0,
 186         .dev            = {
 187                 .platform_data  = &csb300_button_data,
 188         }
 189 };
 190
 191 static void __init csb300_add_device_buttons(void)
 192 {
 193         at91_set_gpio_input(AT91_PIN_PB29, 0);  /* sw0 */
 194         at91_set_deglitch(AT91_PIN_PB29, 1);
 195         at91_set_gpio_input(AT91_PIN_PB28, 0);  /* sw1 */
 196         at91_set_deglitch(AT91_PIN_PB28, 1);
 197         at91_set_gpio_input(AT91_PIN_PA21, 0);  /* sw2 */
 198         at91_set_deglitch(AT91_PIN_PA21, 1);
 199
 200         platform_device_register(&csb300_button_device);
 201 }
 202 #else
 203 static void __init csb300_add_device_buttons(void) {}
 204 #endif
 205
 206 static struct gpio_led csb_leds[] = {
 207         {       /* "led0", yellow */
 208                 .name                   = "led0",
 209                 .gpio                   = AT91_PIN_PB2,
 210                 .active_low             = 1,
 211                 .default_trigger        = "heartbeat",
 212         },
 213         {       /* "led1", green */
 214                 .name                   = "led1",
 215                 .gpio                   = AT91_PIN_PB1,
 216                 .active_low             = 1,
 217                 .default_trigger        = "mmc0",
 218         },
 219         {       /* "led2", yellow */
 220                 .name                   = "led2",
 221                 .gpio                   = AT91_PIN_PB0,
 222                 .active_low             = 1,
 223                 .default_trigger        = "ide-disk",
 224         },
 225 };
 226
 227
 228 static void __init csb337_board_init(void)
 229 {
 230         /* Serial */
 231         at91_add_device_serial();
 232         /* Ethernet */
 233         at91_add_device_eth(&csb337_eth_data);
 234         /* USB Host */
 235         at91_add_device_usbh(&csb337_usbh_data);
 236         /* USB Device */
 237         at91_add_device_udc(&csb337_udc_data);
 238         /* I2C */
 239         at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
 240         /* Compact Flash */
 241         at91_set_gpio_input(AT91_PIN_PB22, 1);          /* IOIS16 */
 242         at91_add_device_cf(&csb337_cf_data);
 243         /* SPI */
 244         at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
 245         /* MMC */
 246         at91_add_device_mmc(0, &csb337_mmc_data);
 247         /* NOR flash */
 248         platform_device_register(&csb_flash);
 249         /* LEDs */
 250         at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
 251         /* Switches on CSB300 */
 252         csb300_add_device_buttons();
 253 }
 254
 255 MACHINE_START(CSB337, "Cogent CSB337")
 256         /* Maintainer: Bill Gatliff */
 257         .phys_io        = AT91_BASE_SYS,
 258         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 259         .boot_params    = AT91_SDRAM_BASE + 0x100,
 260         .timer          = &at91rm9200_timer,
 261         .map_io         = csb337_map_io,
 262         .init_irq       = csb337_init_irq,
 263         .init_machine   = csb337_board_init,
 264 MACHINE_END