release/src-rt-6.x.4708/linux/linux-2.6.36/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/init.h>
  25 #include <linux/mm.h>
  26 #include <linux/module.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/flash.h>
  30
  31 #include <mach/hardware.h>
  32 #include <asm/setup.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/irq.h>
  35
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/irq.h>
  39
  40 #include <mach/board.h>
  41 #include <mach/gpio.h>
  42 #include <mach/at91sam9_smc.h>
  43
  44 #include "sam9_smc.h"
  45 #include "generic.h"
  46
  47
  48 static void __init cam60_map_io(void)
  49 {
  50         /* Initialize processor: 10 MHz crystal */
  51         at91sam9260_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 static void __init cam60_init_irq(void)
  61 {
  62         at91sam9260_init_interrupts(NULL);
  63 }
  64
  65
  66 /*
  67  * USB Host
  68  */
  69 static struct at91_usbh_data __initdata cam60_usbh_data = {
  70         .ports          = 1,
  71 };
  72
  73
  74 /*
  75  * SPI devices.
  76  */
  77 #if defined(CONFIG_MTD_DATAFLASH)
  78 static struct mtd_partition cam60_spi_partitions[] = {
  79         {
  80                 .name   = "BOOT1",
  81                 .offset = 0,
  82                 .size   = 4 * 1056,
  83         },
  84         {
  85                 .name   = "BOOT2",
  86                 .offset = MTDPART_OFS_NXTBLK,
  87                 .size   = 256 * 1056,
  88         },
  89         {
  90                 .name   = "kernel",
  91                 .offset = MTDPART_OFS_NXTBLK,
  92                 .size   = 2222 * 1056,
  93         },
  94         {
  95                 .name   = "file system",
  96                 .offset = MTDPART_OFS_NXTBLK,
  97                 .size   = MTDPART_SIZ_FULL,
  98         },
  99 };
 100
 101 static struct flash_platform_data cam60_spi_flash_platform_data = {
 102         .name           = "spi_flash",
 103         .parts          = cam60_spi_partitions,
 104         .nr_parts       = ARRAY_SIZE(cam60_spi_partitions)
 105 };
 106 #endif
 107
 108 static struct spi_board_info cam60_spi_devices[] __initdata = {
 109 #if defined(CONFIG_MTD_DATAFLASH)
 110         {       /* DataFlash chip */
 111                 .modalias       = "mtd_dataflash",
 112                 .chip_select    = 0,
 113                 .max_speed_hz   = 15 * 1000 * 1000,
 114                 .bus_num        = 0,
 115                 .platform_data  = &cam60_spi_flash_platform_data
 116         },
 117 #endif
 118 };
 119
 120
 121 /*
 122  * MACB Ethernet device
 123  */
 124 static struct __initdata at91_eth_data cam60_macb_data = {
 125         .phy_irq_pin    = AT91_PIN_PB5,
 126         .is_rmii        = 0,
 127 };
 128
 129
 130 /*
 131  * NAND Flash
 132  */
 133 static struct mtd_partition __initdata cam60_nand_partition[] = {
 134         {
 135                 .name   = "nand_fs",
 136                 .offset = 0,
 137                 .size   = MTDPART_SIZ_FULL,
 138         },
 139 };
 140
 141 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 142 {
 143         *num_partitions = ARRAY_SIZE(cam60_nand_partition);
 144         return cam60_nand_partition;
 145 }
 146
 147 static struct atmel_nand_data __initdata cam60_nand_data = {
 148         .ale            = 21,
 149         .cle            = 22,
 150         // .det_pin     = ... not there
 151         .rdy_pin        = AT91_PIN_PA9,
 152         .enable_pin     = AT91_PIN_PA7,
 153         .partition_info = nand_partitions,
 154 };
 155
 156 static struct sam9_smc_config __initdata cam60_nand_smc_config = {
 157         .ncs_read_setup         = 0,
 158         .nrd_setup              = 1,
 159         .ncs_write_setup        = 0,
 160         .nwe_setup              = 1,
 161
 162         .ncs_read_pulse         = 3,
 163         .nrd_pulse              = 3,
 164         .ncs_write_pulse        = 3,
 165         .nwe_pulse              = 3,
 166
 167         .read_cycle             = 5,
 168         .write_cycle            = 5,
 169
 170         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 171         .tdf_cycles             = 2,
 172 };
 173
 174 static void __init cam60_add_device_nand(void)
 175 {
 176         /* configure chip-select 3 (NAND) */
 177         sam9_smc_configure(3, &cam60_nand_smc_config);
 178
 179         at91_add_device_nand(&cam60_nand_data);
 180 }
 181
 182
 183 static void __init cam60_board_init(void)
 184 {
 185         /* Serial */
 186         at91_add_device_serial();
 187         /* SPI */
 188         at91_add_device_spi(cam60_spi_devices, ARRAY_SIZE(cam60_spi_devices));
 189         /* Ethernet */
 190         at91_add_device_eth(&cam60_macb_data);
 191         /* USB Host */
 192         /* enable USB power supply circuit */
 193         at91_set_gpio_output(AT91_PIN_PB18, 1);
 194         at91_add_device_usbh(&cam60_usbh_data);
 195         /* NAND */
 196         cam60_add_device_nand();
 197 }
 198
 199 MACHINE_START(CAM60, "KwikByte CAM60")
 200         /* Maintainer: KwikByte */
 201         .phys_io        = AT91_BASE_SYS,
 202         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 203         .boot_params    = AT91_SDRAM_BASE + 0x100,
 204         .timer          = &at91sam926x_timer,
 205         .map_io         = cam60_map_io,
 206         .init_irq       = cam60_init_irq,
 207         .init_machine   = cam60_board_init,
 208 MACHINE_END