linux/arch/arm/mach-at91/board-snapper9260.c
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   1/*
   2 * linux/arch/arm/mach-at91/board-snapper9260.c
   3 *
   4 *  Copyright (C) 2010 Bluewater System Ltd
   5 *
   6 * Author: Andre Renaud <andre@bluewatersys.com>
   7 * Author: Ryan Mallon  <ryan@bluewatersys.com>
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License as published by
  11 * the Free Software Foundation; either version 2 of the License, or
  12 * (at your option) any later version.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 * GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22 *
  23 */
  24
  25#include <linux/init.h>
  26#include <linux/gpio.h>
  27#include <linux/platform_device.h>
  28#include <linux/spi/spi.h>
  29#include <linux/i2c/pca953x.h>
  30
  31#include <asm/mach-types.h>
  32#include <asm/mach/arch.h>
  33
  34#include <mach/hardware.h>
  35#include <mach/board.h>
  36#include <mach/at91sam9_smc.h>
  37
  38#include "sam9_smc.h"
  39#include "generic.h"
  40
  41#define SNAPPER9260_IO_EXP_GPIO(x)      (NR_BUILTIN_GPIO + (x))
  42
  43static void __init snapper9260_map_io(void)
  44{
  45        at91sam9260_initialize(18432000);
  46
  47        /* Debug on ttyS0 */
  48        at91_register_uart(0, 0, 0);
  49        at91_set_serial_console(0);
  50
  51        at91_register_uart(AT91SAM9260_ID_US0, 1,
  52                           ATMEL_UART_CTS | ATMEL_UART_RTS);
  53        at91_register_uart(AT91SAM9260_ID_US1, 2,
  54                           ATMEL_UART_CTS | ATMEL_UART_RTS);
  55        at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
  56}
  57
  58static void __init snapper9260_init_irq(void)
  59{
  60        at91sam9260_init_interrupts(NULL);
  61}
  62
  63static struct at91_usbh_data __initdata snapper9260_usbh_data = {
  64        .ports          = 2,
  65};
  66
  67static struct at91_udc_data __initdata snapper9260_udc_data = {
  68        .vbus_pin               = SNAPPER9260_IO_EXP_GPIO(5),
  69        .vbus_active_low        = 1,
  70        .vbus_polled            = 1,
  71};
  72
  73static struct at91_eth_data snapper9260_macb_data = {
  74        .is_rmii        = 1,
  75};
  76
  77static struct mtd_partition __initdata snapper9260_nand_partitions[] = {
  78        {
  79                .name   = "Preboot",
  80                .offset = 0,
  81                .size   = SZ_128K,
  82        },
  83        {
  84                .name   = "Bootloader",
  85                .offset = MTDPART_OFS_APPEND,
  86                .size   = SZ_256K,
  87        },
  88        {
  89                .name   = "Environment",
  90                .offset = MTDPART_OFS_APPEND,
  91                .size   = SZ_128K,
  92        },
  93        {
  94                .name   = "Kernel",
  95                .offset = MTDPART_OFS_APPEND,
  96                .size   = SZ_4M,
  97        },
  98        {
  99                .name   = "Filesystem",
 100                .offset = MTDPART_OFS_APPEND,
 101                .size   = MTDPART_SIZ_FULL,
 102        },
 103};
 104
 105static struct mtd_partition * __init
 106snapper9260_nand_partition_info(int size, int *num_partitions)
 107{
 108        *num_partitions = ARRAY_SIZE(snapper9260_nand_partitions);
 109        return snapper9260_nand_partitions;
 110}
 111
 112static struct atmel_nand_data __initdata snapper9260_nand_data = {
 113        .ale            = 21,
 114        .cle            = 22,
 115        .rdy_pin        = AT91_PIN_PC13,
 116        .partition_info = snapper9260_nand_partition_info,
 117        .bus_width_16   = 0,
 118};
 119
 120static struct sam9_smc_config __initdata snapper9260_nand_smc_config = {
 121        .ncs_read_setup         = 0,
 122        .nrd_setup              = 0,
 123        .ncs_write_setup        = 0,
 124        .nwe_setup              = 0,
 125
 126        .ncs_read_pulse         = 5,
 127        .nrd_pulse              = 2,
 128        .ncs_write_pulse        = 5,
 129        .nwe_pulse              = 2,
 130
 131        .read_cycle             = 7,
 132        .write_cycle            = 7,
 133
 134        .mode                   = (AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
 135                                   AT91_SMC_EXNWMODE_DISABLE),
 136        .tdf_cycles             = 1,
 137};
 138
 139static struct pca953x_platform_data snapper9260_io_expander_data = {
 140        .gpio_base              = SNAPPER9260_IO_EXP_GPIO(0),
 141};
 142
 143static struct i2c_board_info __initdata snapper9260_i2c_devices[] = {
 144        {
 145                /* IO expander */
 146                I2C_BOARD_INFO("max7312", 0x28),
 147                .platform_data = &snapper9260_io_expander_data,
 148        },
 149        {
 150                /* Audio codec */
 151                I2C_BOARD_INFO("tlv320aic23", 0x1a),
 152        },
 153        {
 154                /* RTC */
 155                I2C_BOARD_INFO("isl1208", 0x6f),
 156        },
 157};
 158
 159static void __init snapper9260_add_device_nand(void)
 160{
 161        at91_set_A_periph(AT91_PIN_PC14, 0);
 162        sam9_smc_configure(3, &snapper9260_nand_smc_config);
 163        at91_add_device_nand(&snapper9260_nand_data);
 164}
 165
 166static void __init snapper9260_board_init(void)
 167{
 168        at91_add_device_i2c(snapper9260_i2c_devices,
 169                            ARRAY_SIZE(snapper9260_i2c_devices));
 170        at91_add_device_serial();
 171        at91_add_device_usbh(&snapper9260_usbh_data);
 172        at91_add_device_udc(&snapper9260_udc_data);
 173        at91_add_device_eth(&snapper9260_macb_data);
 174        at91_add_device_ssc(AT91SAM9260_ID_SSC, (ATMEL_SSC_TF | ATMEL_SSC_TK |
 175                                                 ATMEL_SSC_TD | ATMEL_SSC_RD));
 176        snapper9260_add_device_nand();
 177}
 178
 179MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
 180        .boot_params    = AT91_SDRAM_BASE + 0x100,
 181        .timer          = &at91sam926x_timer,
 182        .map_io         = snapper9260_map_io,
 183        .init_irq       = snapper9260_init_irq,
 184        .init_machine   = snapper9260_board_init,
 185MACHINE_END
 186
 187
 188