arch/arm/mach-at91/board-rsi-ews.c

   1 /*
   2  * board-rsi-ews.c
   3  *
   4  *  Copyright (C)
   5  *  2005 SAN People,
   6  *  2008-2011 R-S-I Elektrotechnik GmbH & Co. KG
   7  *
   8  * Licensed under GPLv2 or later.
   9  */
  10
  11 #include <linux/types.h>
  12 #include <linux/init.h>
  13 #include <linux/mm.h>
  14 #include <linux/module.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/spi/spi.h>
  17 #include <linux/mtd/physmap.h>
  18
  19 #include <asm/setup.h>
  20 #include <asm/mach-types.h>
  21 #include <asm/irq.h>
  22
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/mach/irq.h>
  26
  27 #include <mach/hardware.h>
  28 #include <mach/board.h>
  29 #include <mach/at91_aic.h>
  30
  31 #include <linux/gpio.h>
  32
  33 #include "generic.h"
  34
  35 static void __init rsi_ews_init_early(void)
  36 {
  37         /* Initialize processor: 18.432 MHz crystal */
  38         at91_initialize(18432000);
  39 }
  40
  41 /*
  42  * Ethernet
  43  */
  44 static struct macb_platform_data rsi_ews_eth_data __initdata = {
  45         .phy_irq_pin    = AT91_PIN_PC4,
  46         .is_rmii        = 1,
  47 };
  48
  49 /*
  50  * USB Host
  51  */
  52 static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
  53         .ports          = 1,
  54         .vbus_pin       = {-EINVAL, -EINVAL},
  55         .overcurrent_pin= {-EINVAL, -EINVAL},
  56 };
  57
  58 /*
  59  * SD/MC
  60  */
  61 static struct at91_mmc_data rsi_ews_mmc_data __initdata = {
  62         .slot_b         = 0,
  63         .wire4          = 1,
  64         .det_pin        = AT91_PIN_PB27,
  65         .wp_pin         = AT91_PIN_PB29,
  66 };
  67
  68 /*
  69  * I2C
  70  */
  71 static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
  72         {
  73                 I2C_BOARD_INFO("ds1337", 0x68),
  74         },
  75         {
  76                 I2C_BOARD_INFO("24c01", 0x50),
  77         }
  78 };
  79
  80 /*
  81  * LEDs
  82  */
  83 static struct gpio_led rsi_ews_leds[] = {
  84         {
  85                 .name                   = "led0",
  86                 .gpio                   = AT91_PIN_PB6,
  87                 .active_low             = 0,
  88         },
  89         {
  90                 .name                   = "led1",
  91                 .gpio                   = AT91_PIN_PB7,
  92                 .active_low             = 0,
  93         },
  94         {
  95                 .name                   = "led2",
  96                 .gpio                   = AT91_PIN_PB8,
  97                 .active_low             = 0,
  98         },
  99         {
 100                 .name                   = "led3",
 101                 .gpio                   = AT91_PIN_PB9,
 102                 .active_low             = 0,
 103         },
 104 };
 105
 106 /*
 107  * DataFlash
 108  */
 109 static struct spi_board_info rsi_ews_spi_devices[] = {
 110         {       /* DataFlash chip 1*/
 111                 .modalias       = "mtd_dataflash",
 112                 .chip_select    = 0,
 113                 .max_speed_hz   = 5 * 1000 * 1000,
 114         },
 115         {       /* DataFlash chip 2*/
 116                 .modalias       = "mtd_dataflash",
 117                 .chip_select    = 1,
 118                 .max_speed_hz   = 5 * 1000 * 1000,
 119         },
 120 };
 121
 122 /*
 123  * NOR flash
 124  */
 125 static struct mtd_partition rsiews_nor_partitions[] = {
 126         {
 127                 .name           = "boot",
 128                 .offset         = 0,
 129                 .size           = 3 * SZ_128K,
 130                 .mask_flags     = MTD_WRITEABLE
 131         },
 132         {
 133                 .name           = "kernel",
 134                 .offset         = MTDPART_OFS_NXTBLK,
 135                 .size           = SZ_2M - (3 * SZ_128K)
 136         },
 137         {
 138                 .name           = "root",
 139                 .offset         = MTDPART_OFS_NXTBLK,
 140                 .size           = SZ_8M
 141         },
 142         {
 143                 .name           = "kernelupd",
 144                 .offset         = MTDPART_OFS_NXTBLK,
 145                 .size           = 3 * SZ_512K,
 146                 .mask_flags     = MTD_WRITEABLE
 147         },
 148         {
 149                 .name           = "rootupd",
 150                 .offset         = MTDPART_OFS_NXTBLK,
 151                 .size           = 9 * SZ_512K,
 152                 .mask_flags     = MTD_WRITEABLE
 153         },
 154 };
 155
 156 static struct physmap_flash_data rsiews_nor_data = {
 157         .width          = 2,
 158         .parts          = rsiews_nor_partitions,
 159         .nr_parts       = ARRAY_SIZE(rsiews_nor_partitions),
 160 };
 161
 162 #define NOR_BASE        AT91_CHIPSELECT_0
 163 #define NOR_SIZE        SZ_16M
 164
 165 static struct resource nor_flash_resources[] = {
 166         {
 167                 .start  = NOR_BASE,
 168                 .end    = NOR_BASE + NOR_SIZE - 1,
 169                 .flags  = IORESOURCE_MEM,
 170         }
 171 };
 172
 173 static struct platform_device rsiews_nor_flash = {
 174         .name           = "physmap-flash",
 175         .id             = 0,
 176         .dev            = {
 177                                 .platform_data  = &rsiews_nor_data,
 178         },
 179         .resource       = nor_flash_resources,
 180         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 181 };
 182
 183 /*
 184  * Init Func
 185  */
 186 static void __init rsi_ews_board_init(void)
 187 {
 188         /* Setup the LEDs */
 189         at91_init_leds(AT91_PIN_PB6, AT91_PIN_PB9);
 190
 191         /* Serial */
 192         /* DBGU on ttyS0. (Rx & Tx only) */
 193         /* This one is for debugging */
 194         at91_register_uart(0, 0, 0);
 195
 196         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 197         /* Dialin/-out modem interface */
 198         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS
 199                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
 200                            | ATMEL_UART_RI);
 201
 202         /* USART3 on ttyS4. (Rx, Tx, RTS) */
 203         /* RS485 communication */
 204         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
 205         at91_add_device_serial();
 206         at91_set_gpio_output(AT91_PIN_PA21, 0);
 207         /* Ethernet */
 208         at91_add_device_eth(&rsi_ews_eth_data);
 209         /* USB Host */
 210         at91_add_device_usbh(&rsi_ews_usbh_data);
 211         /* I2C */
 212         at91_add_device_i2c(rsi_ews_i2c_devices,
 213                         ARRAY_SIZE(rsi_ews_i2c_devices));
 214         /* SPI */
 215         at91_add_device_spi(rsi_ews_spi_devices,
 216                         ARRAY_SIZE(rsi_ews_spi_devices));
 217         /* MMC */
 218         at91_add_device_mmc(0, &rsi_ews_mmc_data);
 219         /* NOR Flash */
 220         platform_device_register(&rsiews_nor_flash);
 221         /* LEDs */
 222         at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
 223 }
 224
 225 MACHINE_START(RSI_EWS, "RSI EWS")
 226         /* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */
 227         .timer          = &at91rm9200_timer,
 228         .map_io         = at91_map_io,
 229         .handle_irq     = at91_aic_handle_irq,
 230         .init_early     = rsi_ews_init_early,
 231         .init_irq       = at91_init_irq_default,
 232         .init_machine   = rsi_ews_board_init,
 233 MACHINE_END