arch/arm/mach-at91/board-sam9g20ek.c

   1 /*
   2  *  Copyright (C) 2005 SAN People
   3  *  Copyright (C) 2008 Atmel
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include <linux/types.h>
  21 #include <linux/init.h>
  22 #include <linux/mm.h>
  23 #include <linux/module.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/at73c213.h>
  27 #include <linux/clk.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/setup.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/irq.h>
  33
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36 #include <asm/mach/irq.h>
  37
  38 #include <mach/board.h>
  39 #include <mach/gpio.h>
  40
  41 #include "generic.h"
  42
  43
  44 static void __init ek_map_io(void)
  45 {
  46         /* Initialize processor: 18.432 MHz crystal */
  47         at91sam9260_initialize(18432000);
  48
  49         /* Setup the serial ports and console */
  50         at91_init_uarts();
  51 }
  52
  53 static void __init ek_init_irq(void)
  54 {
  55         at91sam9260_init_interrupts(NULL);
  56 }
  57
  58
  59 /*
  60  * USB Host port
  61  */
  62 static struct at91_usbh_data __initdata ek_usbh_data = {
  63         .ports          = 2,
  64 };
  65
  66 /*
  67  * USB Device port
  68  */
  69 static struct at91_udc_data __initdata ek_udc_data = {
  70         .vbus_pin       = AT91_PIN_PC5,
  71         .pullup_pin     = 0,            /* pull-up driven by UDC */
  72 };
  73
  74
  75 /*
  76  * SPI devices.
  77  */
  78 static struct spi_board_info ek_spi_devices[] = {
  79 #if !defined(CONFIG_MMC_AT91)
  80         {       /* DataFlash chip */
  81                 .modalias       = "mtd_dataflash",
  82                 .chip_select    = 1,
  83                 .max_speed_hz   = 15 * 1000 * 1000,
  84                 .bus_num        = 0,
  85         },
  86 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
  87         {       /* DataFlash card */
  88                 .modalias       = "mtd_dataflash",
  89                 .chip_select    = 0,
  90                 .max_speed_hz   = 15 * 1000 * 1000,
  91                 .bus_num        = 0,
  92         },
  93 #endif
  94 #endif
  95 };
  96
  97
  98 /*
  99  * MACB Ethernet device
 100  */
 101 static struct at91_eth_data __initdata ek_macb_data = {
 102         .phy_irq_pin    = AT91_PIN_PA7,
 103         .is_rmii        = 1,
 104 };
 105
 106
 107 /*
 108  * NAND flash
 109  */
 110 static struct mtd_partition __initdata ek_nand_partition[] = {
 111         {
 112                 .name   = "Bootstrap",
 113                 .offset = 0,
 114                 .size   = 4 * 1024 * 1024,
 115         },
 116         {
 117                 .name   = "Partition 1",
 118                 .offset = 4 * 1024 * 1024,
 119                 .size   = 60 * 1024 * 1024,
 120         },
 121         {
 122                 .name   = "Partition 2",
 123                 .offset = 64 * 1024 * 1024,
 124                 .size   = MTDPART_SIZ_FULL,
 125         },
 126 };
 127
 128 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 129 {
 130         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 131         return ek_nand_partition;
 132 }
 133
 134 /* det_pin is not connected */
 135 static struct atmel_nand_data __initdata ek_nand_data = {
 136         .ale            = 21,
 137         .cle            = 22,
 138         .rdy_pin        = AT91_PIN_PC13,
 139         .enable_pin     = AT91_PIN_PC14,
 140         .partition_info = nand_partitions,
 141 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 142         .bus_width_16   = 1,
 143 #else
 144         .bus_width_16   = 0,
 145 #endif
 146 };
 147
 148
 149 /*
 150  * MCI (SD/MMC)
 151  * det_pin, wp_pin and vcc_pin are not connected
 152  */
 153 static struct at91_mmc_data __initdata ek_mmc_data = {
 154         .slot_b         = 1,
 155         .wire4          = 1,
 156 };
 157
 158
 159 /*
 160  * LEDs
 161  */
 162 static struct gpio_led ek_leds[] = {
 163         {       /* "bottom" led, green, userled1 to be defined */
 164                 .name                   = "ds5",
 165                 .gpio                   = AT91_PIN_PA6,
 166                 .active_low             = 1,
 167                 .default_trigger        = "none",
 168         },
 169         {       /* "power" led, yellow */
 170                 .name                   = "ds1",
 171                 .gpio                   = AT91_PIN_PA9,
 172                 .default_trigger        = "heartbeat",
 173         }
 174 };
 175
 176 static void __init ek_board_init(void)
 177 {
 178         /* Serial */
 179         at91_add_device_serial();
 180         /* USB Host */
 181         at91_add_device_usbh(&ek_usbh_data);
 182         /* USB Device */
 183         at91_add_device_udc(&ek_udc_data);
 184         /* SPI */
 185         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 186         /* NAND */
 187         at91_add_device_nand(&ek_nand_data);
 188         /* Ethernet */
 189         at91_add_device_eth(&ek_macb_data);
 190         /* MMC */
 191         at91_add_device_mmc(0, &ek_mmc_data);
 192         /* I2C */
 193         at91_add_device_i2c(NULL, 0);
 194         /* LEDs */
 195         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 196 }
 197
 198 MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
 199         /* Maintainer: Atmel */
 200         .phys_io        = AT91_BASE_SYS,
 201         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 202         .boot_params    = AT91_SDRAM_BASE + 0x100,
 203         .timer          = &at91sam926x_timer,
 204         .map_io         = ek_map_io,
 205         .init_irq       = ek_init_irq,
 206         .init_machine   = ek_board_init,
 207 MACHINE_END