release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-sam9-l9260.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9-l9260.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   6  *  Copyright (C) 2007 Olimex Ltd
   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
  30 #include <mach/hardware.h>
  31 #include <asm/setup.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/irq.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/irq.h>
  38
  39 #include <mach/board.h>
  40 #include <mach/gpio.h>
  41 #include <mach/at91sam9_smc.h>
  42
  43 #include "sam9_smc.h"
  44 #include "generic.h"
  45
  46
  47 static void __init ek_map_io(void)
  48 {
  49         /* Initialize processor: 18.432 MHz crystal */
  50         at91sam9260_initialize(18432000);
  51
  52         /* Setup the LEDs */
  53         at91_init_leds(AT91_PIN_PA9, AT91_PIN_PA6);
  54
  55         /* DBGU on ttyS0. (Rx & Tx only) */
  56         at91_register_uart(0, 0, 0);
  57
  58         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  59         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  60                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
  61                            | ATMEL_UART_RI);
  62
  63         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
  64         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  65
  66         /* set serial console to ttyS0 (ie, DBGU) */
  67         at91_set_serial_console(0);
  68 }
  69
  70 static void __init ek_init_irq(void)
  71 {
  72         at91sam9260_init_interrupts(NULL);
  73 }
  74
  75
  76 /*
  77  * USB Host port
  78  */
  79 static struct at91_usbh_data __initdata ek_usbh_data = {
  80         .ports          = 2,
  81 };
  82
  83 /*
  84  * USB Device port
  85  */
  86 static struct at91_udc_data __initdata ek_udc_data = {
  87         .vbus_pin       = AT91_PIN_PC5,
  88         .pullup_pin     = 0,            /* pull-up driven by UDC */
  89 };
  90
  91
  92 /*
  93  * SPI devices.
  94  */
  95 static struct spi_board_info ek_spi_devices[] = {
  96 #if !defined(CONFIG_MMC_AT91)
  97         {       /* DataFlash chip */
  98                 .modalias       = "mtd_dataflash",
  99                 .chip_select    = 1,
 100                 .max_speed_hz   = 15 * 1000 * 1000,
 101                 .bus_num        = 0,
 102         },
 103 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 104         {       /* DataFlash card */
 105                 .modalias       = "mtd_dataflash",
 106                 .chip_select    = 0,
 107                 .max_speed_hz   = 15 * 1000 * 1000,
 108                 .bus_num        = 0,
 109         },
 110 #endif
 111 #endif
 112 };
 113
 114
 115 /*
 116  * MACB Ethernet device
 117  */
 118 static struct at91_eth_data __initdata ek_macb_data = {
 119         .phy_irq_pin    = AT91_PIN_PA7,
 120         .is_rmii        = 0,
 121 };
 122
 123
 124 /*
 125  * NAND flash
 126  */
 127 static struct mtd_partition __initdata ek_nand_partition[] = {
 128         {
 129                 .name   = "Bootloader Area",
 130                 .offset = 0,
 131                 .size   = 10 * SZ_1M,
 132         },
 133         {
 134                 .name   = "User Area",
 135                 .offset = MTDPART_OFS_NXTBLK,
 136                 .size   = MTDPART_SIZ_FULL,
 137         },
 138 };
 139
 140 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 141 {
 142         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 143         return ek_nand_partition;
 144 }
 145
 146 static struct atmel_nand_data __initdata ek_nand_data = {
 147         .ale            = 21,
 148         .cle            = 22,
 149 //      .det_pin        = ... not connected
 150         .rdy_pin        = AT91_PIN_PC13,
 151         .enable_pin     = AT91_PIN_PC14,
 152         .partition_info = nand_partitions,
 153 };
 154
 155 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 156         .ncs_read_setup         = 0,
 157         .nrd_setup              = 1,
 158         .ncs_write_setup        = 0,
 159         .nwe_setup              = 1,
 160
 161         .ncs_read_pulse         = 3,
 162         .nrd_pulse              = 3,
 163         .ncs_write_pulse        = 3,
 164         .nwe_pulse              = 3,
 165
 166         .read_cycle             = 5,
 167         .write_cycle            = 5,
 168
 169         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 170         .tdf_cycles             = 2,
 171 };
 172
 173 static void __init ek_add_device_nand(void)
 174 {
 175         /* configure chip-select 3 (NAND) */
 176         sam9_smc_configure(3, &ek_nand_smc_config);
 177
 178         at91_add_device_nand(&ek_nand_data);
 179 }
 180
 181
 182 /*
 183  * MCI (SD/MMC)
 184  */
 185 static struct at91_mmc_data __initdata ek_mmc_data = {
 186         .slot_b         = 1,
 187         .wire4          = 1,
 188         .det_pin        = AT91_PIN_PC8,
 189         .wp_pin         = AT91_PIN_PC4,
 190 //      .vcc_pin        = ... not connected
 191 };
 192
 193 static void __init ek_board_init(void)
 194 {
 195         /* Serial */
 196         at91_add_device_serial();
 197         /* USB Host */
 198         at91_add_device_usbh(&ek_usbh_data);
 199         /* USB Device */
 200         at91_add_device_udc(&ek_udc_data);
 201         /* SPI */
 202         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 203         /* NAND */
 204         ek_add_device_nand();
 205         /* Ethernet */
 206         at91_add_device_eth(&ek_macb_data);
 207         /* MMC */
 208         at91_add_device_mmc(0, &ek_mmc_data);
 209         /* I2C */
 210         at91_add_device_i2c(NULL, 0);
 211 }
 212
 213 MACHINE_START(SAM9_L9260, "Olimex SAM9-L9260")
 214         /* Maintainer: Olimex */
 215         .phys_io        = AT91_BASE_SYS,
 216         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 217         .boot_params    = AT91_SDRAM_BASE + 0x100,
 218         .timer          = &at91sam926x_timer,
 219         .map_io         = ek_map_io,
 220         .init_irq       = ek_init_irq,
 221         .init_machine   = ek_board_init,
 222 MACHINE_END