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 mci_platform_data __initdata rsi_ews_mci0_data = {
  62         .slot[0] = {
  63                 .bus_width      = 4,
  64                 .detect_pin     = AT91_PIN_PB27,
  65                 .wp_pin         = AT91_PIN_PB29,
  66         },
  67 };
  68
  69 /*
  70  * I2C
  71  */
  72 static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
  73         {
  74                 I2C_BOARD_INFO("ds1337", 0x68),
  75         },
  76         {
  77                 I2C_BOARD_INFO("24c01", 0x50),
  78         }
  79 };
  80
  81 /*
  82  * LEDs
  83  */
  84 static struct gpio_led rsi_ews_leds[] = {
  85         {
  86                 .name                   = "led0",
  87                 .gpio                   = AT91_PIN_PB6,
  88                 .active_low             = 0,
  89         },
  90         {
  91                 .name                   = "led1",
  92                 .gpio                   = AT91_PIN_PB7,
  93                 .active_low             = 0,
  94         },
  95         {
  96                 .name                   = "led2",
  97                 .gpio                   = AT91_PIN_PB8,
  98                 .active_low             = 0,
  99         },
 100         {
 101                 .name                   = "led3",
 102                 .gpio                   = AT91_PIN_PB9,
 103                 .active_low             = 0,
 104         },
 105 };
 106
 107 /*
 108  * DataFlash
 109  */
 110 static struct spi_board_info rsi_ews_spi_devices[] = {
 111         {       /* DataFlash chip 1*/
 112                 .modalias       = "mtd_dataflash",
 113                 .chip_select    = 0,
 114                 .max_speed_hz   = 5 * 1000 * 1000,
 115         },
 116         {       /* DataFlash chip 2*/
 117                 .modalias       = "mtd_dataflash",
 118                 .chip_select    = 1,
 119                 .max_speed_hz   = 5 * 1000 * 1000,
 120         },
 121 };
 122
 123 /*
 124  * NOR flash
 125  */
 126 static struct mtd_partition rsiews_nor_partitions[] = {
 127         {
 128                 .name           = "boot",
 129                 .offset         = 0,
 130                 .size           = 3 * SZ_128K,
 131                 .mask_flags     = MTD_WRITEABLE
 132         },
 133         {
 134                 .name           = "kernel",
 135                 .offset         = MTDPART_OFS_NXTBLK,
 136                 .size           = SZ_2M - (3 * SZ_128K)
 137         },
 138         {
 139                 .name           = "root",
 140                 .offset         = MTDPART_OFS_NXTBLK,
 141                 .size           = SZ_8M
 142         },
 143         {
 144                 .name           = "kernelupd",
 145                 .offset         = MTDPART_OFS_NXTBLK,
 146                 .size           = 3 * SZ_512K,
 147                 .mask_flags     = MTD_WRITEABLE
 148         },
 149         {
 150                 .name           = "rootupd",
 151                 .offset         = MTDPART_OFS_NXTBLK,
 152                 .size           = 9 * SZ_512K,
 153                 .mask_flags     = MTD_WRITEABLE
 154         },
 155 };
 156
 157 static struct physmap_flash_data rsiews_nor_data = {
 158         .width          = 2,
 159         .parts          = rsiews_nor_partitions,
 160         .nr_parts       = ARRAY_SIZE(rsiews_nor_partitions),
 161 };
 162
 163 #define NOR_BASE        AT91_CHIPSELECT_0
 164 #define NOR_SIZE        SZ_16M
 165
 166 static struct resource nor_flash_resources[] = {
 167         {
 168                 .start  = NOR_BASE,
 169                 .end    = NOR_BASE + NOR_SIZE - 1,
 170                 .flags  = IORESOURCE_MEM,
 171         }
 172 };
 173
 174 static struct platform_device rsiews_nor_flash = {
 175         .name           = "physmap-flash",
 176         .id             = 0,
 177         .dev            = {
 178                                 .platform_data  = &rsiews_nor_data,
 179         },
 180         .resource       = nor_flash_resources,
 181         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 182 };
 183
 184 /*
 185  * Init Func
 186  */
 187 static void __init rsi_ews_board_init(void)
 188 {
 189         /* Serial */
 190         /* DBGU on ttyS0. (Rx & Tx only) */
 191         /* This one is for debugging */
 192         at91_register_uart(0, 0, 0);
 193
 194         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 195         /* Dialin/-out modem interface */
 196         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS
 197                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
 198                            | ATMEL_UART_RI);
 199
 200         /* USART3 on ttyS4. (Rx, Tx, RTS) */
 201         /* RS485 communication */
 202         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
 203         at91_add_device_serial();
 204         at91_set_gpio_output(AT91_PIN_PA21, 0);
 205         /* Ethernet */
 206         at91_add_device_eth(&rsi_ews_eth_data);
 207         /* USB Host */
 208         at91_add_device_usbh(&rsi_ews_usbh_data);
 209         /* I2C */
 210         at91_add_device_i2c(rsi_ews_i2c_devices,
 211                         ARRAY_SIZE(rsi_ews_i2c_devices));
 212         /* SPI */
 213         at91_add_device_spi(rsi_ews_spi_devices,
 214                         ARRAY_SIZE(rsi_ews_spi_devices));
 215         /* MMC */
 216         at91_add_device_mci(0, &rsi_ews_mci0_data);
 217         /* NOR Flash */
 218         platform_device_register(&rsiews_nor_flash);
 219         /* LEDs */
 220         at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
 221 }
 222
 223 MACHINE_START(RSI_EWS, "RSI EWS")
 224         /* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */
 225         .timer          = &at91rm9200_timer,
 226         .map_io         = at91_map_io,
 227         .handle_irq     = at91_aic_handle_irq,
 228         .init_early     = rsi_ews_init_early,
 229         .init_irq       = at91_init_irq_default,
 230         .init_machine   = rsi_ews_board_init,
 231 MACHINE_END