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/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/mtd/physmap.h>
  28 #include <linux/mtd/plat-ram.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/at91rm9200_mc.h>
  40 #include <mach/at91_ramc.h>
  41 #include <mach/cpu.h>
  42
  43 #include "at91_aic.h"
  44 #include "board.h"
  45 #include "generic.h"
  46
  47 static struct gpio_led cpuat91_leds[] = {
  48         {
  49                 .name                   = "led1",
  50                 .default_trigger        = "heartbeat",
  51                 .active_low             = 1,
  52                 .gpio                   = AT91_PIN_PC0,
  53         },
  54 };
  55
  56 static void __init cpuat91_init_early(void)
  57 {
  58         /* Set cpu type: PQFP */
  59         at91rm9200_set_type(ARCH_REVISON_9200_PQFP);
  60
  61         /* Initialize processor: 18.432 MHz crystal */
  62         at91_initialize(18432000);
  63 }
  64
  65 static struct macb_platform_data __initdata cpuat91_eth_data = {
  66         .phy_irq_pin    = -EINVAL,
  67         .is_rmii        = 1,
  68 };
  69
  70 static struct at91_usbh_data __initdata cpuat91_usbh_data = {
  71         .ports          = 1,
  72         .vbus_pin       = {-EINVAL, -EINVAL},
  73         .overcurrent_pin= {-EINVAL, -EINVAL},
  74 };
  75
  76 static struct at91_udc_data __initdata cpuat91_udc_data = {
  77         .vbus_pin       = AT91_PIN_PC15,
  78         .pullup_pin     = AT91_PIN_PC14,
  79 };
  80
  81 static struct mci_platform_data __initdata cpuat91_mci0_data = {
  82         .slot[0] = {
  83                 .bus_width      = 4,
  84                 .detect_pin     = AT91_PIN_PC2,
  85                 .wp_pin         = -EINVAL,
  86         },
  87 };
  88
  89 static struct physmap_flash_data cpuat91_flash_data = {
  90         .width          = 2,
  91 };
  92
  93 static struct resource cpuat91_flash_resource = {
  94         .start          = AT91_CHIPSELECT_0,
  95         .end            = AT91_CHIPSELECT_0 + SZ_16M - 1,
  96         .flags          = IORESOURCE_MEM,
  97 };
  98
  99 static struct platform_device cpuat91_norflash = {
 100         .name           = "physmap-flash",
 101         .id             = 0,
 102         .dev    = {
 103                 .platform_data  = &cpuat91_flash_data,
 104         },
 105         .resource       = &cpuat91_flash_resource,
 106         .num_resources  = 1,
 107 };
 108
 109 #ifdef CONFIG_MTD_PLATRAM
 110 struct platdata_mtd_ram at91_sram_pdata = {
 111         .mapname        = "SRAM",
 112         .bankwidth      = 2,
 113 };
 114
 115 static struct resource at91_sram_resource[] = {
 116         [0] = {
 117                 .start = AT91RM9200_SRAM_BASE,
 118                 .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
 119                 .flags = IORESOURCE_MEM,
 120         },
 121 };
 122
 123 static struct platform_device at91_sram = {
 124         .name           = "mtd-ram",
 125         .id             = 0,
 126         .resource       = at91_sram_resource,
 127         .num_resources  = ARRAY_SIZE(at91_sram_resource),
 128         .dev    = {
 129                 .platform_data = &at91_sram_pdata,
 130         },
 131 };
 132 #endif /* MTD_PLATRAM */
 133
 134 static struct platform_device *platform_devices[] __initdata = {
 135         &cpuat91_norflash,
 136 #ifdef CONFIG_MTD_PLATRAM
 137         &at91_sram,
 138 #endif /* CONFIG_MTD_PLATRAM */
 139 };
 140
 141 static void __init cpuat91_board_init(void)
 142 {
 143         /* Serial */
 144         /* DBGU on ttyS0. (Rx & Tx only) */
 145         at91_register_uart(0, 0, 0);
 146
 147         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
 148         at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
 149                 ATMEL_UART_RTS);
 150
 151         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 152         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
 153                 ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
 154                 ATMEL_UART_DCD | ATMEL_UART_RI);
 155
 156         /* USART2 on ttyS3 (Rx, Tx) */
 157         at91_register_uart(AT91RM9200_ID_US2, 3, 0);
 158
 159         /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
 160         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
 161                 ATMEL_UART_RTS);
 162         at91_add_device_serial();
 163         /* LEDs. */
 164         at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
 165         /* Ethernet */
 166         at91_add_device_eth(&cpuat91_eth_data);
 167         /* USB Host */
 168         at91_add_device_usbh(&cpuat91_usbh_data);
 169         /* USB Device */
 170         at91_add_device_udc(&cpuat91_udc_data);
 171         /* MMC */
 172         at91_add_device_mci(0, &cpuat91_mci0_data);
 173         /* I2C */
 174         at91_add_device_i2c(NULL, 0);
 175         /* Platform devices */
 176         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 177 }
 178
 179 MACHINE_START(CPUAT91, "Eukrea")
 180         /* Maintainer: Eric Benard - EUKREA Electromatique */
 181         .timer          = &at91rm9200_timer,
 182         .map_io         = at91_map_io,
 183         .handle_irq     = at91_aic_handle_irq,
 184         .init_early     = cpuat91_init_early,
 185         .init_irq       = at91_init_irq_default,
 186         .init_machine   = cpuat91_board_init,
 187 MACHINE_END