release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-cpuat91.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-cpuat91.c
   3  *
   4  *  Copyright (C) 2009 Eric Benard - eric@eukrea.com
   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/mtd/physmap.h>
  27 #include <linux/mtd/plat-ram.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/setup.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/irq.h>
  33
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36 #include <asm/mach/irq.h>
  37
  38 #include <mach/board.h>
  39 #include <mach/gpio.h>
  40 #include <mach/at91rm9200_mc.h>
  41
  42 #include "generic.h"
  43
  44 static struct gpio_led cpuat91_leds[] = {
  45         {
  46                 .name                   = "led1",
  47                 .default_trigger        = "heartbeat",
  48                 .active_low             = 1,
  49                 .gpio                   = AT91_PIN_PC0,
  50         },
  51 };
  52
  53 static void __init cpuat91_map_io(void)
  54 {
  55         /* Initialize processor: 18.432 MHz crystal */
  56         at91rm9200_initialize(18432000, AT91RM9200_PQFP);
  57
  58         /* DBGU on ttyS0. (Rx & Tx only) */
  59         at91_register_uart(0, 0, 0);
  60
  61         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
  62         at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
  63                 ATMEL_UART_RTS);
  64
  65         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  66         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
  67                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
  68                 ATMEL_UART_DCD | ATMEL_UART_RI);
  69
  70         /* USART2 on ttyS3 (Rx, Tx) */
  71         at91_register_uart(AT91RM9200_ID_US2, 3, 0);
  72
  73         /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
  74         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
  75                 ATMEL_UART_RTS);
  76
  77         /* set serial console to ttyS0 (ie, DBGU) */
  78         at91_set_serial_console(0);
  79 }
  80
  81 static void __init cpuat91_init_irq(void)
  82 {
  83         at91rm9200_init_interrupts(NULL);
  84 }
  85
  86 static struct at91_eth_data __initdata cpuat91_eth_data = {
  87         .is_rmii        = 1,
  88 };
  89
  90 static struct at91_usbh_data __initdata cpuat91_usbh_data = {
  91         .ports          = 1,
  92 };
  93
  94 static struct at91_udc_data __initdata cpuat91_udc_data = {
  95         .vbus_pin       = AT91_PIN_PC15,
  96         .pullup_pin     = AT91_PIN_PC14,
  97 };
  98
  99 static struct at91_mmc_data __initdata cpuat91_mmc_data = {
 100         .det_pin        = AT91_PIN_PC2,
 101         .wire4          = 1,
 102 };
 103
 104 static struct physmap_flash_data cpuat91_flash_data = {
 105         .width          = 2,
 106 };
 107
 108 static struct resource cpuat91_flash_resource = {
 109         .start          = AT91_CHIPSELECT_0,
 110         .end            = AT91_CHIPSELECT_0 + SZ_16M - 1,
 111         .flags          = IORESOURCE_MEM,
 112 };
 113
 114 static struct platform_device cpuat91_norflash = {
 115         .name           = "physmap-flash",
 116         .id             = 0,
 117         .dev    = {
 118                 .platform_data  = &cpuat91_flash_data,
 119         },
 120         .resource       = &cpuat91_flash_resource,
 121         .num_resources  = 1,
 122 };
 123
 124 #ifdef CONFIG_MTD_PLATRAM
 125 struct platdata_mtd_ram at91_sram_pdata = {
 126         .mapname        = "SRAM",
 127         .bankwidth      = 2,
 128 };
 129
 130 static struct resource at91_sram_resource[] = {
 131         [0] = {
 132                 .start = AT91RM9200_SRAM_BASE,
 133                 .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
 134                 .flags = IORESOURCE_MEM,
 135         },
 136 };
 137
 138 static struct platform_device at91_sram = {
 139         .name           = "mtd-ram",
 140         .id             = 0,
 141         .resource       = at91_sram_resource,
 142         .num_resources  = ARRAY_SIZE(at91_sram_resource),
 143         .dev    = {
 144                 .platform_data = &at91_sram_pdata,
 145         },
 146 };
 147 #endif /* MTD_PLATRAM */
 148
 149 static struct platform_device *platform_devices[] __initdata = {
 150         &cpuat91_norflash,
 151 #ifdef CONFIG_MTD_PLATRAM
 152         &at91_sram,
 153 #endif /* CONFIG_MTD_PLATRAM */
 154 };
 155
 156 static void __init cpuat91_board_init(void)
 157 {
 158         /* Serial */
 159         at91_add_device_serial();
 160         /* LEDs. */
 161         at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
 162         /* Ethernet */
 163         at91_add_device_eth(&cpuat91_eth_data);
 164         /* USB Host */
 165         at91_add_device_usbh(&cpuat91_usbh_data);
 166         /* USB Device */
 167         at91_add_device_udc(&cpuat91_udc_data);
 168         /* MMC */
 169         at91_add_device_mmc(0, &cpuat91_mmc_data);
 170         /* I2C */
 171         at91_add_device_i2c(NULL, 0);
 172         /* Platform devices */
 173         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 174 }
 175
 176 MACHINE_START(CPUAT91, "Eukrea")
 177         /* Maintainer: Eric Benard - EUKREA Electromatique */
 178         .phys_io        = AT91_BASE_SYS,
 179         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 180         .boot_params    = AT91_SDRAM_BASE + 0x100,
 181         .timer          = &at91rm9200_timer,
 182         .map_io         = cpuat91_map_io,
 183         .init_irq       = cpuat91_init_irq,
 184         .init_machine   = cpuat91_board_init,
 185 MACHINE_END