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
  48
  49 static void __init cam60_init_early(void)
  50 {
  51         /* Initialize processor: 10 MHz crystal */
  52         at91_initialize(10000000);
  53 }
  54
  55 /*
  56  * USB Host
  57  */
  58 static struct at91_usbh_data __initdata cam60_usbh_data = {
  59         .ports          = 1,
  60         .vbus_pin       = {-EINVAL, -EINVAL},
  61         .overcurrent_pin= {-EINVAL, -EINVAL},
  62 };
  63
  64
  65 /*
  66  * SPI devices.
  67  */
  68 #if defined(CONFIG_MTD_DATAFLASH)
  69 static struct mtd_partition cam60_spi_partitions[] = {
  70         {
  71                 .name   = "BOOT1",
  72                 .offset = 0,
  73                 .size   = 4 * 1056,
  74         },
  75         {
  76                 .name   = "BOOT2",
  77                 .offset = MTDPART_OFS_NXTBLK,
  78                 .size   = 256 * 1056,
  79         },
  80         {
  81                 .name   = "kernel",
  82                 .offset = MTDPART_OFS_NXTBLK,
  83                 .size   = 2222 * 1056,
  84         },
  85         {
  86                 .name   = "file system",
  87                 .offset = MTDPART_OFS_NXTBLK,
  88                 .size   = MTDPART_SIZ_FULL,
  89         },
  90 };
  91
  92 static struct flash_platform_data cam60_spi_flash_platform_data = {
  93         .name           = "spi_flash",
  94         .parts          = cam60_spi_partitions,
  95         .nr_parts       = ARRAY_SIZE(cam60_spi_partitions)
  96 };
  97 #endif
  98
  99 static struct spi_board_info cam60_spi_devices[] __initdata = {
 100 #if defined(CONFIG_MTD_DATAFLASH)
 101         {       /* DataFlash chip */
 102                 .modalias       = "mtd_dataflash",
 103                 .chip_select    = 0,
 104                 .max_speed_hz   = 15 * 1000 * 1000,
 105                 .bus_num        = 0,
 106                 .platform_data  = &cam60_spi_flash_platform_data
 107         },
 108 #endif
 109 };
 110
 111
 112 /*
 113  * MACB Ethernet device
 114  */
 115 static struct macb_platform_data cam60_macb_data __initdata = {
 116         .phy_irq_pin    = AT91_PIN_PB5,
 117         .is_rmii        = 0,
 118 };
 119
 120
 121 /*
 122  * NAND Flash
 123  */
 124 static struct mtd_partition __initdata cam60_nand_partition[] = {
 125         {
 126                 .name   = "nand_fs",
 127                 .offset = 0,
 128                 .size   = MTDPART_SIZ_FULL,
 129         },
 130 };
 131
 132 static struct atmel_nand_data __initdata cam60_nand_data = {
 133         .ale            = 21,
 134         .cle            = 22,
 135         .det_pin        = -EINVAL,
 136         .rdy_pin        = AT91_PIN_PA9,
 137         .enable_pin     = AT91_PIN_PA7,
 138         .ecc_mode       = NAND_ECC_SOFT,
 139         .parts          = cam60_nand_partition,
 140         .num_parts      = ARRAY_SIZE(cam60_nand_partition),
 141 };
 142
 143 static struct sam9_smc_config __initdata cam60_nand_smc_config = {
 144         .ncs_read_setup         = 0,
 145         .nrd_setup              = 1,
 146         .ncs_write_setup        = 0,
 147         .nwe_setup              = 1,
 148
 149         .ncs_read_pulse         = 3,
 150         .nrd_pulse              = 3,
 151         .ncs_write_pulse        = 3,
 152         .nwe_pulse              = 3,
 153
 154         .read_cycle             = 5,
 155         .write_cycle            = 5,
 156
 157         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 158         .tdf_cycles             = 2,
 159 };
 160
 161 static void __init cam60_add_device_nand(void)
 162 {
 163         /* configure chip-select 3 (NAND) */
 164         sam9_smc_configure(0, 3, &cam60_nand_smc_config);
 165
 166         at91_add_device_nand(&cam60_nand_data);
 167 }
 168
 169
 170 static void __init cam60_board_init(void)
 171 {
 172         /* Serial */
 173         /* DBGU on ttyS0. (Rx & Tx only) */
 174         at91_register_uart(0, 0, 0);
 175         at91_add_device_serial();
 176         /* SPI */
 177         at91_add_device_spi(cam60_spi_devices, ARRAY_SIZE(cam60_spi_devices));
 178         /* Ethernet */
 179         at91_add_device_eth(&cam60_macb_data);
 180         /* USB Host */
 181         /* enable USB power supply circuit */
 182         at91_set_gpio_output(AT91_PIN_PB18, 1);
 183         at91_add_device_usbh(&cam60_usbh_data);
 184         /* NAND */
 185         cam60_add_device_nand();
 186 }
 187
 188 MACHINE_START(CAM60, "KwikByte CAM60")
 189         /* Maintainer: KwikByte */
 190         .init_time      = at91sam926x_pit_init,
 191         .map_io         = at91_map_io,
 192         .handle_irq     = at91_aic_handle_irq,
 193         .init_early     = cam60_init_early,
 194         .init_irq       = at91_init_irq_default,
 195         .init_machine   = cam60_board_init,
 196 MACHINE_END