release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-ecbat91.c

   1 /*
   2  * linux/arch/arm/mach-at91rm9200/board-ecbat91.c
   3  * Copyright (C) 2007 emQbit.com.
   4  *
   5  * We started from board-dk.c, which is Copyright (C) 2005 SAN People.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/types.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/spi/flash.h>
  29
  30 #include <mach/hardware.h>
  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/board.h>
  40 #include <mach/gpio.h>
  41
  42 #include "generic.h"
  43
  44
  45 static void __init ecb_at91map_io(void)
  46 {
  47         /* Initialize processor: 18.432 MHz crystal */
  48         at91rm9200_initialize(18432000, AT91RM9200_PQFP);
  49
  50         /* Setup the LEDs */
  51         at91_init_leds(AT91_PIN_PC7, AT91_PIN_PC7);
  52
  53         /* DBGU on ttyS0. (Rx & Tx only) */
  54         at91_register_uart(0, 0, 0);
  55
  56         /* USART0 on ttyS1. (Rx & Tx only) */
  57         at91_register_uart(AT91RM9200_ID_US0, 1, 0);
  58
  59         /* set serial console to ttyS0 (ie, DBGU) */
  60         at91_set_serial_console(0);
  61 }
  62
  63 static void __init ecb_at91init_irq(void)
  64 {
  65         at91rm9200_init_interrupts(NULL);
  66 }
  67
  68 static struct at91_eth_data __initdata ecb_at91eth_data = {
  69         .phy_irq_pin    = AT91_PIN_PC4,
  70         .is_rmii        = 0,
  71 };
  72
  73 static struct at91_usbh_data __initdata ecb_at91usbh_data = {
  74         .ports          = 1,
  75 };
  76
  77 static struct at91_mmc_data __initdata ecb_at91mmc_data = {
  78         .slot_b         = 0,
  79         .wire4          = 1,
  80 };
  81
  82
  83 #if defined(CONFIG_MTD_DATAFLASH)
  84 static struct mtd_partition __initdata my_flash0_partitions[] =
  85 {
  86         {       /* 0x8400 */
  87                 .name   = "Darrell-loader",
  88                 .offset = 0,
  89                 .size   = 12 * 1056,
  90         },
  91         {
  92                 .name   = "U-boot",
  93                 .offset = MTDPART_OFS_NXTBLK,
  94                 .size   = 110 * 1056,
  95         },
  96         {       /* 1336 (167 blocks) pages * 1056 bytes = 0x158700 bytes */
  97                 .name   = "UBoot-env",
  98                 .offset = MTDPART_OFS_NXTBLK,
  99                 .size   = 8 * 1056,
 100         },
 101         {       /* 1336 (167 blocks) pages * 1056 bytes = 0x158700 bytes */
 102                 .name   = "Kernel",
 103                 .offset = MTDPART_OFS_NXTBLK,
 104                 .size   = 1534 * 1056,
 105         },
 106         {       /* 190200 - jffs2 root filesystem */
 107                 .name   = "Filesystem",
 108                 .offset = MTDPART_OFS_NXTBLK,
 109                 .size   = MTDPART_SIZ_FULL,     /* 26 sectors */
 110         }
 111 };
 112
 113 static struct flash_platform_data __initdata my_flash0_platform = {
 114         .name           = "Removable flash card",
 115         .parts          = my_flash0_partitions,
 116         .nr_parts       = ARRAY_SIZE(my_flash0_partitions)
 117 };
 118
 119 #endif
 120
 121 static struct spi_board_info __initdata ecb_at91spi_devices[] = {
 122         {       /* DataFlash chip */
 123                 .modalias       = "mtd_dataflash",
 124                 .chip_select    = 0,
 125                 .max_speed_hz   = 10 * 1000 * 1000,
 126                 .bus_num        = 0,
 127 #if defined(CONFIG_MTD_DATAFLASH)
 128                 .platform_data  = &my_flash0_platform,
 129 #endif
 130         },
 131         {       /* User accessable spi - cs1 (250KHz) */
 132                 .modalias       = "spi-cs1",
 133                 .chip_select    = 1,
 134                 .max_speed_hz   = 250 * 1000,
 135         },
 136         {       /* User accessable spi - cs2 (1MHz) */
 137                 .modalias       = "spi-cs2",
 138                 .chip_select    = 2,
 139                 .max_speed_hz   = 1 * 1000 * 1000,
 140         },
 141         {       /* User accessable spi - cs3 (10MHz) */
 142                 .modalias       = "spi-cs3",
 143                 .chip_select    = 3,
 144                 .max_speed_hz   = 10 * 1000 * 1000,
 145         },
 146 };
 147
 148 static void __init ecb_at91board_init(void)
 149 {
 150         /* Serial */
 151         at91_add_device_serial();
 152
 153         /* Ethernet */
 154         at91_add_device_eth(&ecb_at91eth_data);
 155
 156         /* USB Host */
 157         at91_add_device_usbh(&ecb_at91usbh_data);
 158
 159         /* I2C */
 160         at91_add_device_i2c(NULL, 0);
 161
 162         /* MMC */
 163         at91_add_device_mmc(0, &ecb_at91mmc_data);
 164
 165         /* SPI */
 166         at91_add_device_spi(ecb_at91spi_devices, ARRAY_SIZE(ecb_at91spi_devices));
 167 }
 168
 169 MACHINE_START(ECBAT91, "emQbit's ECB_AT91")
 170         /* Maintainer: emQbit.com */
 171         .phys_io        = AT91_BASE_SYS,
 172         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 173         .boot_params    = AT91_SDRAM_BASE + 0x100,
 174         .timer          = &at91rm9200_timer,
 175         .map_io         = ecb_at91map_io,
 176         .init_irq       = ecb_at91init_irq,
 177         .init_machine   = ecb_at91board_init,
 178 MACHINE_END