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
  29 #include <linux/gpio.h>
  30
  31 #include "at91_aic.h"
  32 #include "board.h"
  33 #include "generic.h"
  34 #include "gpio.h"
  35
  36 static void __init rsi_ews_init_early(void)
  37 {
  38         /* Initialize processor: 18.432 MHz crystal */
  39         at91_initialize(18432000);
  40 }
  41
  42 /*
  43  * Ethernet
  44  */
  45 static struct macb_platform_data rsi_ews_eth_data __initdata = {
  46         .phy_irq_pin    = AT91_PIN_PC4,
  47         .is_rmii        = 1,
  48 };
  49
  50 /*
  51  * USB Host
  52  */
  53 static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
  54         .ports          = 1,
  55         .vbus_pin       = {-EINVAL, -EINVAL},
  56         .overcurrent_pin= {-EINVAL, -EINVAL},
  57 };
  58
  59 /*
  60  * SD/MC
  61  */
  62 static struct mci_platform_data __initdata rsi_ews_mci0_data = {
  63         .slot[0] = {
  64                 .bus_width      = 4,
  65                 .detect_pin     = AT91_PIN_PB27,
  66                 .wp_pin         = AT91_PIN_PB29,
  67         },
  68 };
  69
  70 /*
  71  * I2C
  72  */
  73 static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
  74         {
  75                 I2C_BOARD_INFO("ds1337", 0x68),
  76         },
  77         {
  78                 I2C_BOARD_INFO("24c01", 0x50),
  79         }
  80 };
  81
  82 /*
  83  * LEDs
  84  */
  85 static struct gpio_led rsi_ews_leds[] = {
  86         {
  87                 .name                   = "led0",
  88                 .gpio                   = AT91_PIN_PB6,
  89                 .active_low             = 0,
  90         },
  91         {
  92                 .name                   = "led1",
  93                 .gpio                   = AT91_PIN_PB7,
  94                 .active_low             = 0,
  95         },
  96         {
  97                 .name                   = "led2",
  98                 .gpio                   = AT91_PIN_PB8,
  99                 .active_low             = 0,
 100         },
 101         {
 102                 .name                   = "led3",
 103                 .gpio                   = AT91_PIN_PB9,
 104                 .active_low             = 0,
 105         },
 106 };
 107
 108 /*
 109  * DataFlash
 110  */
 111 static struct spi_board_info rsi_ews_spi_devices[] = {
 112         {       /* DataFlash chip 1*/
 113                 .modalias       = "mtd_dataflash",
 114                 .chip_select    = 0,
 115                 .max_speed_hz   = 5 * 1000 * 1000,
 116         },
 117         {       /* DataFlash chip 2*/
 118                 .modalias       = "mtd_dataflash",
 119                 .chip_select    = 1,
 120                 .max_speed_hz   = 5 * 1000 * 1000,
 121         },
 122 };
 123
 124 /*
 125  * NOR flash
 126  */
 127 static struct mtd_partition rsiews_nor_partitions[] = {
 128         {
 129                 .name           = "boot",
 130                 .offset         = 0,
 131                 .size           = 3 * SZ_128K,
 132                 .mask_flags     = MTD_WRITEABLE
 133         },
 134         {
 135                 .name           = "kernel",
 136                 .offset         = MTDPART_OFS_NXTBLK,
 137                 .size           = SZ_2M - (3 * SZ_128K)
 138         },
 139         {
 140                 .name           = "root",
 141                 .offset         = MTDPART_OFS_NXTBLK,
 142                 .size           = SZ_8M
 143         },
 144         {
 145                 .name           = "kernelupd",
 146                 .offset         = MTDPART_OFS_NXTBLK,
 147                 .size           = 3 * SZ_512K,
 148                 .mask_flags     = MTD_WRITEABLE
 149         },
 150         {
 151                 .name           = "rootupd",
 152                 .offset         = MTDPART_OFS_NXTBLK,
 153                 .size           = 9 * SZ_512K,
 154                 .mask_flags     = MTD_WRITEABLE
 155         },
 156 };
 157
 158 static struct physmap_flash_data rsiews_nor_data = {
 159         .width          = 2,
 160         .parts          = rsiews_nor_partitions,
 161         .nr_parts       = ARRAY_SIZE(rsiews_nor_partitions),
 162 };
 163
 164 #define NOR_BASE        AT91_CHIPSELECT_0
 165 #define NOR_SIZE        SZ_16M
 166
 167 static struct resource nor_flash_resources[] = {
 168         {
 169                 .start  = NOR_BASE,
 170                 .end    = NOR_BASE + NOR_SIZE - 1,
 171                 .flags  = IORESOURCE_MEM,
 172         }
 173 };
 174
 175 static struct platform_device rsiews_nor_flash = {
 176         .name           = "physmap-flash",
 177         .id             = 0,
 178         .dev            = {
 179                                 .platform_data  = &rsiews_nor_data,
 180         },
 181         .resource       = nor_flash_resources,
 182         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 183 };
 184
 185 /*
 186  * Init Func
 187  */
 188 static void __init rsi_ews_board_init(void)
 189 {
 190         /* Serial */
 191         /* DBGU on ttyS0. (Rx & Tx only) */
 192         /* This one is for debugging */
 193         at91_register_uart(0, 0, 0);
 194
 195         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 196         /* Dialin/-out modem interface */
 197         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS
 198                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
 199                            | ATMEL_UART_RI);
 200
 201         /* USART3 on ttyS4. (Rx, Tx, RTS) */
 202         /* RS485 communication */
 203         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
 204         at91_add_device_serial();
 205         at91_set_gpio_output(AT91_PIN_PA21, 0);
 206         /* Ethernet */
 207         at91_add_device_eth(&rsi_ews_eth_data);
 208         /* USB Host */
 209         at91_add_device_usbh(&rsi_ews_usbh_data);
 210         /* I2C */
 211         at91_add_device_i2c(rsi_ews_i2c_devices,
 212                         ARRAY_SIZE(rsi_ews_i2c_devices));
 213         /* SPI */
 214         at91_add_device_spi(rsi_ews_spi_devices,
 215                         ARRAY_SIZE(rsi_ews_spi_devices));
 216         /* MMC */
 217         at91_add_device_mci(0, &rsi_ews_mci0_data);
 218         /* NOR Flash */
 219         platform_device_register(&rsiews_nor_flash);
 220         /* LEDs */
 221         at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
 222 }
 223
 224 MACHINE_START(RSI_EWS, "RSI EWS")
 225         /* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */
 226         .init_time      = at91rm9200_timer_init,
 227         .map_io         = at91_map_io,
 228         .handle_irq     = at91_aic_handle_irq,
 229         .init_early     = rsi_ews_init_early,
 230         .init_irq       = at91_init_irq_default,
 231         .init_machine   = rsi_ews_board_init,
 232 MACHINE_END