arch/arm/mach-at91/board-cam60.c

   1 /*
   2  * KwikByte CAM60 (KB9260)
   3  *
   4  * based on board-sam9260ek.c
   5  *   Copyright (C) 2005 SAN People
   6  *   Copyright (C) 2006 Atmel
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <linux/types.h>
  24 #include <linux/gpio.h>
  25 #include <linux/init.h>
  26 #include <linux/mm.h>
  27 #include <linux/module.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/spi/spi.h>
  30 #include <linux/spi/flash.h>
  31
  32 #include <mach/hardware.h>
  33 #include <asm/setup.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/irq.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40
  41 #include <mach/at91sam9_smc.h>
  42
  43 #include "at91_aic.h"
  44 #include "board.h"
  45 #include "sam9_smc.h"
  46 #include "generic.h"
  47 #include "gpio.h"
  48
  49
  50 static void __init cam60_init_early(void)
  51 {
  52         /* Initialize processor: 10 MHz crystal */
  53         at91_initialize(10000000);
  54 }
  55
  56 /*
  57  * USB Host
  58  */
  59 static struct at91_usbh_data __initdata cam60_usbh_data = {
  60         .ports          = 1,
  61         .vbus_pin       = {-EINVAL, -EINVAL},
  62         .overcurrent_pin= {-EINVAL, -EINVAL},
  63 };
  64
  65
  66 /*
  67  * SPI devices.
  68  */
  69 #if defined(CONFIG_MTD_DATAFLASH)
  70 static struct mtd_partition cam60_spi_partitions[] = {
  71         {
  72                 .name   = "BOOT1",
  73                 .offset = 0,
  74                 .size   = 4 * 1056,
  75         },
  76         {
  77                 .name   = "BOOT2",
  78                 .offset = MTDPART_OFS_NXTBLK,
  79                 .size   = 256 * 1056,
  80         },
  81         {
  82                 .name   = "kernel",
  83                 .offset = MTDPART_OFS_NXTBLK,
  84                 .size   = 2222 * 1056,
  85         },
  86         {
  87                 .name   = "file system",
  88                 .offset = MTDPART_OFS_NXTBLK,
  89                 .size   = MTDPART_SIZ_FULL,
  90         },
  91 };
  92
  93 static struct flash_platform_data cam60_spi_flash_platform_data = {
  94         .name           = "spi_flash",
  95         .parts          = cam60_spi_partitions,
  96         .nr_parts       = ARRAY_SIZE(cam60_spi_partitions)
  97 };
  98 #endif
  99
 100 static struct spi_board_info cam60_spi_devices[] __initdata = {
 101 #if defined(CONFIG_MTD_DATAFLASH)
 102         {       /* DataFlash chip */
 103                 .modalias       = "mtd_dataflash",
 104                 .chip_select    = 0,
 105                 .max_speed_hz   = 15 * 1000 * 1000,
 106                 .bus_num        = 0,
 107                 .platform_data  = &cam60_spi_flash_platform_data
 108         },
 109 #endif
 110 };
 111
 112
 113 /*
 114  * MACB Ethernet device
 115  */
 116 static struct macb_platform_data cam60_macb_data __initdata = {
 117         .phy_irq_pin    = AT91_PIN_PB5,
 118         .is_rmii        = 0,
 119 };
 120
 121
 122 /*
 123  * NAND Flash
 124  */
 125 static struct mtd_partition __initdata cam60_nand_partition[] = {
 126         {
 127                 .name   = "nand_fs",
 128                 .offset = 0,
 129                 .size   = MTDPART_SIZ_FULL,
 130         },
 131 };
 132
 133 static struct atmel_nand_data __initdata cam60_nand_data = {
 134         .ale            = 21,
 135         .cle            = 22,
 136         .det_pin        = -EINVAL,
 137         .rdy_pin        = AT91_PIN_PA9,
 138         .enable_pin     = AT91_PIN_PA7,
 139         .ecc_mode       = NAND_ECC_SOFT,
 140         .parts          = cam60_nand_partition,
 141         .num_parts      = ARRAY_SIZE(cam60_nand_partition),
 142 };
 143
 144 static struct sam9_smc_config __initdata cam60_nand_smc_config = {
 145         .ncs_read_setup         = 0,
 146         .nrd_setup              = 1,
 147         .ncs_write_setup        = 0,
 148         .nwe_setup              = 1,
 149
 150         .ncs_read_pulse         = 3,
 151         .nrd_pulse              = 3,
 152         .ncs_write_pulse        = 3,
 153         .nwe_pulse              = 3,
 154
 155         .read_cycle             = 5,
 156         .write_cycle            = 5,
 157
 158         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 159         .tdf_cycles             = 2,
 160 };
 161
 162 static void __init cam60_add_device_nand(void)
 163 {
 164         /* configure chip-select 3 (NAND) */
 165         sam9_smc_configure(0, 3, &cam60_nand_smc_config);
 166
 167         at91_add_device_nand(&cam60_nand_data);
 168 }
 169
 170
 171 static void __init cam60_board_init(void)
 172 {
 173         /* Serial */
 174         /* DBGU on ttyS0. (Rx & Tx only) */
 175         at91_register_uart(0, 0, 0);
 176         at91_add_device_serial();
 177         /* SPI */
 178         at91_add_device_spi(cam60_spi_devices, ARRAY_SIZE(cam60_spi_devices));
 179         /* Ethernet */
 180         at91_add_device_eth(&cam60_macb_data);
 181         /* USB Host */
 182         /* enable USB power supply circuit */
 183         at91_set_gpio_output(AT91_PIN_PB18, 1);
 184         at91_add_device_usbh(&cam60_usbh_data);
 185         /* NAND */
 186         cam60_add_device_nand();
 187 }
 188
 189 MACHINE_START(CAM60, "KwikByte CAM60")
 190         /* Maintainer: KwikByte */
 191         .init_time      = at91sam926x_pit_init,
 192         .map_io         = at91_map_io,
 193         .handle_irq     = at91_aic_handle_irq,
 194         .init_early     = cam60_init_early,
 195         .init_irq       = at91_init_irq_default,
 196         .init_machine   = cam60_board_init,
 197 MACHINE_END