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/board.h>
  42 #include <mach/at91sam9_smc.h>
  43
  44 #include "sam9_smc.h"
  45 #include "generic.h"
  46
  47
  48 static void __init cam60_init_early(void)
  49 {
  50         /* Initialize processor: 10 MHz crystal */
  51         at91_initialize(10000000);
  52
  53         /* DBGU on ttyS0. (Rx & Tx only) */
  54         at91_register_uart(0, 0, 0);
  55
  56         /* set serial console to ttyS0 (ie, DBGU) */
  57         at91_set_serial_console(0);
  58 }
  59
  60 /*
  61  * USB Host
  62  */
  63 static struct at91_usbh_data __initdata cam60_usbh_data = {
  64         .ports          = 1,
  65 };
  66
  67
  68 /*
  69  * SPI devices.
  70  */
  71 #if defined(CONFIG_MTD_DATAFLASH)
  72 static struct mtd_partition cam60_spi_partitions[] = {
  73         {
  74                 .name   = "BOOT1",
  75                 .offset = 0,
  76                 .size   = 4 * 1056,
  77         },
  78         {
  79                 .name   = "BOOT2",
  80                 .offset = MTDPART_OFS_NXTBLK,
  81                 .size   = 256 * 1056,
  82         },
  83         {
  84                 .name   = "kernel",
  85                 .offset = MTDPART_OFS_NXTBLK,
  86                 .size   = 2222 * 1056,
  87         },
  88         {
  89                 .name   = "file system",
  90                 .offset = MTDPART_OFS_NXTBLK,
  91                 .size   = MTDPART_SIZ_FULL,
  92         },
  93 };
  94
  95 static struct flash_platform_data cam60_spi_flash_platform_data = {
  96         .name           = "spi_flash",
  97         .parts          = cam60_spi_partitions,
  98         .nr_parts       = ARRAY_SIZE(cam60_spi_partitions)
  99 };
 100 #endif
 101
 102 static struct spi_board_info cam60_spi_devices[] __initdata = {
 103 #if defined(CONFIG_MTD_DATAFLASH)
 104         {       /* DataFlash chip */
 105                 .modalias       = "mtd_dataflash",
 106                 .chip_select    = 0,
 107                 .max_speed_hz   = 15 * 1000 * 1000,
 108                 .bus_num        = 0,
 109                 .platform_data  = &cam60_spi_flash_platform_data
 110         },
 111 #endif
 112 };
 113
 114
 115 /*
 116  * MACB Ethernet device
 117  */
 118 static struct __initdata at91_eth_data cam60_macb_data = {
 119         .phy_irq_pin    = AT91_PIN_PB5,
 120         .is_rmii        = 0,
 121 };
 122
 123
 124 /*
 125  * NAND Flash
 126  */
 127 static struct mtd_partition __initdata cam60_nand_partition[] = {
 128         {
 129                 .name   = "nand_fs",
 130                 .offset = 0,
 131                 .size   = MTDPART_SIZ_FULL,
 132         },
 133 };
 134
 135 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 136 {
 137         *num_partitions = ARRAY_SIZE(cam60_nand_partition);
 138         return cam60_nand_partition;
 139 }
 140
 141 static struct atmel_nand_data __initdata cam60_nand_data = {
 142         .ale            = 21,
 143         .cle            = 22,
 144         // .det_pin     = ... not there
 145         .rdy_pin        = AT91_PIN_PA9,
 146         .enable_pin     = AT91_PIN_PA7,
 147         .partition_info = nand_partitions,
 148 };
 149
 150 static struct sam9_smc_config __initdata cam60_nand_smc_config = {
 151         .ncs_read_setup         = 0,
 152         .nrd_setup              = 1,
 153         .ncs_write_setup        = 0,
 154         .nwe_setup              = 1,
 155
 156         .ncs_read_pulse         = 3,
 157         .nrd_pulse              = 3,
 158         .ncs_write_pulse        = 3,
 159         .nwe_pulse              = 3,
 160
 161         .read_cycle             = 5,
 162         .write_cycle            = 5,
 163
 164         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 165         .tdf_cycles             = 2,
 166 };
 167
 168 static void __init cam60_add_device_nand(void)
 169 {
 170         /* configure chip-select 3 (NAND) */
 171         sam9_smc_configure(3, &cam60_nand_smc_config);
 172
 173         at91_add_device_nand(&cam60_nand_data);
 174 }
 175
 176
 177 static void __init cam60_board_init(void)
 178 {
 179         /* Serial */
 180         at91_add_device_serial();
 181         /* SPI */
 182         at91_add_device_spi(cam60_spi_devices, ARRAY_SIZE(cam60_spi_devices));
 183         /* Ethernet */
 184         at91_add_device_eth(&cam60_macb_data);
 185         /* USB Host */
 186         /* enable USB power supply circuit */
 187         at91_set_gpio_output(AT91_PIN_PB18, 1);
 188         at91_add_device_usbh(&cam60_usbh_data);
 189         /* NAND */
 190         cam60_add_device_nand();
 191 }
 192
 193 MACHINE_START(CAM60, "KwikByte CAM60")
 194         /* Maintainer: KwikByte */
 195         .timer          = &at91sam926x_timer,
 196         .map_io         = at91_map_io,
 197         .init_early     = cam60_init_early,
 198         .init_irq       = at91_init_irq_default,
 199         .init_machine   = cam60_board_init,
 200 MACHINE_END