release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-snapper9260.c

   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
  43 static 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
  58 static void __init snapper9260_init_irq(void)
  59 {
  60         at91sam9260_init_interrupts(NULL);
  61 }
  62
  63 static struct at91_usbh_data __initdata snapper9260_usbh_data = {
  64         .ports          = 2,
  65 };
  66
  67 static 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
  73 static struct at91_eth_data snapper9260_macb_data = {
  74         .is_rmii        = 1,
  75 };
  76
  77 static 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
 105 static struct mtd_partition * __init
 106 snapper9260_nand_partition_info(int size, int *num_partitions)
 107 {
 108         *num_partitions = ARRAY_SIZE(snapper9260_nand_partitions);
 109         return snapper9260_nand_partitions;
 110 }
 111
 112 static 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
 120 static 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
 139 static struct pca953x_platform_data snapper9260_io_expander_data = {
 140         .gpio_base              = SNAPPER9260_IO_EXP_GPIO(0),
 141 };
 142
 143 static 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
 159 static 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
 166 static 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
 179 MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
 180         .phys_io        = AT91_BASE_SYS,
 181         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 182         .boot_params    = AT91_SDRAM_BASE + 0x100,
 183         .timer          = &at91sam926x_timer,
 184         .map_io         = snapper9260_map_io,
 185         .init_irq       = snapper9260_init_irq,
 186         .init_machine   = snapper9260_board_init,
 187 MACHINE_END