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
   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_init_early(void)
  44 {
  45         at91_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 struct at91_usbh_data __initdata snapper9260_usbh_data = {
  59         .ports          = 2,
  60 };
  61
  62 static struct at91_udc_data __initdata snapper9260_udc_data = {
  63         .vbus_pin               = SNAPPER9260_IO_EXP_GPIO(5),
  64         .vbus_active_low        = 1,
  65         .vbus_polled            = 1,
  66 };
  67
  68 static struct at91_eth_data snapper9260_macb_data = {
  69         .is_rmii        = 1,
  70 };
  71
  72 static struct mtd_partition __initdata snapper9260_nand_partitions[] = {
  73         {
  74                 .name   = "Preboot",
  75                 .offset = 0,
  76                 .size   = SZ_128K,
  77         },
  78         {
  79                 .name   = "Bootloader",
  80                 .offset = MTDPART_OFS_APPEND,
  81                 .size   = SZ_256K,
  82         },
  83         {
  84                 .name   = "Environment",
  85                 .offset = MTDPART_OFS_APPEND,
  86                 .size   = SZ_128K,
  87         },
  88         {
  89                 .name   = "Kernel",
  90                 .offset = MTDPART_OFS_APPEND,
  91                 .size   = SZ_4M,
  92         },
  93         {
  94                 .name   = "Filesystem",
  95                 .offset = MTDPART_OFS_APPEND,
  96                 .size   = MTDPART_SIZ_FULL,
  97         },
  98 };
  99
 100 static struct atmel_nand_data __initdata snapper9260_nand_data = {
 101         .ale            = 21,
 102         .cle            = 22,
 103         .rdy_pin        = AT91_PIN_PC13,
 104         .parts          = snapper9260_nand_partitions,
 105         .num_parts      = ARRAY_SIZE(snapper9260_nand_partitions),
 106         .bus_width_16   = 0,
 107 };
 108
 109 static struct sam9_smc_config __initdata snapper9260_nand_smc_config = {
 110         .ncs_read_setup         = 0,
 111         .nrd_setup              = 0,
 112         .ncs_write_setup        = 0,
 113         .nwe_setup              = 0,
 114
 115         .ncs_read_pulse         = 5,
 116         .nrd_pulse              = 2,
 117         .ncs_write_pulse        = 5,
 118         .nwe_pulse              = 2,
 119
 120         .read_cycle             = 7,
 121         .write_cycle            = 7,
 122
 123         .mode                   = (AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
 124                                    AT91_SMC_EXNWMODE_DISABLE),
 125         .tdf_cycles             = 1,
 126 };
 127
 128 static struct pca953x_platform_data snapper9260_io_expander_data = {
 129         .gpio_base              = SNAPPER9260_IO_EXP_GPIO(0),
 130 };
 131
 132 static struct i2c_board_info __initdata snapper9260_i2c_devices[] = {
 133         {
 134                 /* IO expander */
 135                 I2C_BOARD_INFO("max7312", 0x28),
 136                 .platform_data = &snapper9260_io_expander_data,
 137         },
 138         {
 139                 /* Audio codec */
 140                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 141         },
 142         {
 143                 /* RTC */
 144                 I2C_BOARD_INFO("isl1208", 0x6f),
 145                 .irq = gpio_to_irq(AT91_PIN_PA31),
 146         },
 147 };
 148
 149 static void __init snapper9260_add_device_nand(void)
 150 {
 151         at91_set_A_periph(AT91_PIN_PC14, 0);
 152         sam9_smc_configure(3, &snapper9260_nand_smc_config);
 153         at91_add_device_nand(&snapper9260_nand_data);
 154 }
 155
 156 static void __init snapper9260_board_init(void)
 157 {
 158         at91_add_device_i2c(snapper9260_i2c_devices,
 159                             ARRAY_SIZE(snapper9260_i2c_devices));
 160         at91_add_device_serial();
 161         at91_add_device_usbh(&snapper9260_usbh_data);
 162         at91_add_device_udc(&snapper9260_udc_data);
 163         at91_add_device_eth(&snapper9260_macb_data);
 164         at91_add_device_ssc(AT91SAM9260_ID_SSC, (ATMEL_SSC_TF | ATMEL_SSC_TK |
 165                                                  ATMEL_SSC_TD | ATMEL_SSC_RD));
 166         snapper9260_add_device_nand();
 167 }
 168
 169 MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
 170         .timer          = &at91sam926x_timer,
 171         .map_io         = at91_map_io,
 172         .init_early     = snapper9260_init_early,
 173         .init_irq       = at91_init_irq_default,
 174         .init_machine   = snapper9260_board_init,
 175 MACHINE_END
 176
 177