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
  30 #include <linux/gpio.h>
  31
  32 #include "generic.h"
  33
  34 static void __init rsi_ews_init_early(void)
  35 {
  36         /* Initialize processor: 18.432 MHz crystal */
  37         at91_initialize(18432000);
  38
  39         /* Setup the LEDs */
  40         at91_init_leds(AT91_PIN_PB6, AT91_PIN_PB9);
  41
  42         /* DBGU on ttyS0. (Rx & Tx only) */
  43         /* This one is for debugging */
  44         at91_register_uart(0, 0, 0);
  45
  46         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  47         /* Dialin/-out modem interface */
  48         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS
  49                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
  50                            | ATMEL_UART_RI);
  51
  52         /* USART3 on ttyS4. (Rx, Tx, RTS) */
  53         /* RS485 communication */
  54         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
  55 }
  56
  57 /*
  58  * Ethernet
  59  */
  60 static struct macb_platform_data rsi_ews_eth_data __initdata = {
  61         .phy_irq_pin    = AT91_PIN_PC4,
  62         .is_rmii        = 1,
  63 };
  64
  65 /*
  66  * USB Host
  67  */
  68 static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
  69         .ports          = 1,
  70         .vbus_pin       = {-EINVAL, -EINVAL},
  71         .overcurrent_pin= {-EINVAL, -EINVAL},
  72 };
  73
  74 /*
  75  * SD/MC
  76  */
  77 static struct at91_mmc_data rsi_ews_mmc_data __initdata = {
  78         .slot_b         = 0,
  79         .wire4          = 1,
  80         .det_pin        = AT91_PIN_PB27,
  81         .wp_pin         = AT91_PIN_PB29,
  82 };
  83
  84 /*
  85  * I2C
  86  */
  87 static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
  88         {
  89                 I2C_BOARD_INFO("ds1337", 0x68),
  90         },
  91         {
  92                 I2C_BOARD_INFO("24c01", 0x50),
  93         }
  94 };
  95
  96 /*
  97  * LEDs
  98  */
  99 static struct gpio_led rsi_ews_leds[] = {
 100         {
 101                 .name                   = "led0",
 102                 .gpio                   = AT91_PIN_PB6,
 103                 .active_low             = 0,
 104         },
 105         {
 106                 .name                   = "led1",
 107                 .gpio                   = AT91_PIN_PB7,
 108                 .active_low             = 0,
 109         },
 110         {
 111                 .name                   = "led2",
 112                 .gpio                   = AT91_PIN_PB8,
 113                 .active_low             = 0,
 114         },
 115         {
 116                 .name                   = "led3",
 117                 .gpio                   = AT91_PIN_PB9,
 118                 .active_low             = 0,
 119         },
 120 };
 121
 122 /*
 123  * DataFlash
 124  */
 125 static struct spi_board_info rsi_ews_spi_devices[] = {
 126         {       /* DataFlash chip 1*/
 127                 .modalias       = "mtd_dataflash",
 128                 .chip_select    = 0,
 129                 .max_speed_hz   = 5 * 1000 * 1000,
 130         },
 131         {       /* DataFlash chip 2*/
 132                 .modalias       = "mtd_dataflash",
 133                 .chip_select    = 1,
 134                 .max_speed_hz   = 5 * 1000 * 1000,
 135         },
 136 };
 137
 138 /*
 139  * NOR flash
 140  */
 141 static struct mtd_partition rsiews_nor_partitions[] = {
 142         {
 143                 .name           = "boot",
 144                 .offset         = 0,
 145                 .size           = 3 * SZ_128K,
 146                 .mask_flags     = MTD_WRITEABLE
 147         },
 148         {
 149                 .name           = "kernel",
 150                 .offset         = MTDPART_OFS_NXTBLK,
 151                 .size           = SZ_2M - (3 * SZ_128K)
 152         },
 153         {
 154                 .name           = "root",
 155                 .offset         = MTDPART_OFS_NXTBLK,
 156                 .size           = SZ_8M
 157         },
 158         {
 159                 .name           = "kernelupd",
 160                 .offset         = MTDPART_OFS_NXTBLK,
 161                 .size           = 3 * SZ_512K,
 162                 .mask_flags     = MTD_WRITEABLE
 163         },
 164         {
 165                 .name           = "rootupd",
 166                 .offset         = MTDPART_OFS_NXTBLK,
 167                 .size           = 9 * SZ_512K,
 168                 .mask_flags     = MTD_WRITEABLE
 169         },
 170 };
 171
 172 static struct physmap_flash_data rsiews_nor_data = {
 173         .width          = 2,
 174         .parts          = rsiews_nor_partitions,
 175         .nr_parts       = ARRAY_SIZE(rsiews_nor_partitions),
 176 };
 177
 178 #define NOR_BASE        AT91_CHIPSELECT_0
 179 #define NOR_SIZE        SZ_16M
 180
 181 static struct resource nor_flash_resources[] = {
 182         {
 183                 .start  = NOR_BASE,
 184                 .end    = NOR_BASE + NOR_SIZE - 1,
 185                 .flags  = IORESOURCE_MEM,
 186         }
 187 };
 188
 189 static struct platform_device rsiews_nor_flash = {
 190         .name           = "physmap-flash",
 191         .id             = 0,
 192         .dev            = {
 193                                 .platform_data  = &rsiews_nor_data,
 194         },
 195         .resource       = nor_flash_resources,
 196         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 197 };
 198
 199 /*
 200  * Init Func
 201  */
 202 static void __init rsi_ews_board_init(void)
 203 {
 204         /* Serial */
 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         .init_early     = rsi_ews_init_early,
 230         .init_irq       = at91_init_irq_default,
 231         .init_machine   = rsi_ews_board_init,
 232 MACHINE_END