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kernel/linux-imx6_3.14.28/arch/arm/mach-at91/board-ecbat91.c 4.5 KB
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  /*
   * linux/arch/arm/mach-at91rm9200/board-ecbat91.c
   * Copyright (C) 2007 emQbit.com.
   *
   * We started from board-dk.c, which is Copyright (C) 2005 SAN People.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  #include <linux/types.h>
  #include <linux/gpio.h>
  #include <linux/init.h>
  #include <linux/mm.h>
  #include <linux/module.h>
  #include <linux/platform_device.h>
  #include <linux/spi/spi.h>
  #include <linux/spi/flash.h>
  
  #include <mach/hardware.h>
  #include <asm/setup.h>
  #include <asm/mach-types.h>
  #include <asm/irq.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  #include <asm/mach/irq.h>
  
  #include <mach/cpu.h>
  
  #include "at91_aic.h"
  #include "board.h"
  #include "generic.h"
  
  
  static void __init ecb_at91init_early(void)
  {
  	/* Set cpu type: PQFP */
  	at91rm9200_set_type(ARCH_REVISON_9200_PQFP);
  
  	/* Initialize processor: 18.432 MHz crystal */
  	at91_initialize(18432000);
  }
  
  static struct macb_platform_data __initdata ecb_at91eth_data = {
  	.phy_irq_pin	= AT91_PIN_PC4,
  	.is_rmii	= 0,
  };
  
  static struct at91_usbh_data __initdata ecb_at91usbh_data = {
  	.ports		= 1,
  	.vbus_pin	= {-EINVAL, -EINVAL},
  	.overcurrent_pin= {-EINVAL, -EINVAL},
  };
  
  static struct mci_platform_data __initdata ecbat91_mci0_data = {
  	.slot[0] = {
  		.bus_width	= 4,
  		.detect_pin	= -EINVAL,
  		.wp_pin		= -EINVAL,
  	},
  };
  
  
  #if defined(CONFIG_MTD_DATAFLASH)
  static struct mtd_partition __initdata my_flash0_partitions[] =
  {
  	{	/* 0x8400 */
  		.name	= "Darrell-loader",
  		.offset	= 0,
  		.size	= 12 * 1056,
  	},
  	{
  		.name	= "U-boot",
  		.offset	= MTDPART_OFS_NXTBLK,
  		.size	= 110 * 1056,
  	},
  	{	/* 1336 (167 blocks) pages * 1056 bytes = 0x158700 bytes */
  		.name	= "UBoot-env",
  		.offset	= MTDPART_OFS_NXTBLK,
  		.size	= 8 * 1056,
  	},
  	{	/* 1336 (167 blocks) pages * 1056 bytes = 0x158700 bytes */
  		.name	= "Kernel",
  		.offset	= MTDPART_OFS_NXTBLK,
  		.size	= 1534 * 1056,
  	},
  	{	/* 190200 - jffs2 root filesystem */
  		.name	= "Filesystem",
  		.offset	= MTDPART_OFS_NXTBLK,
  		.size	= MTDPART_SIZ_FULL,	/* 26 sectors */
  	}
  };
  
  static struct flash_platform_data __initdata my_flash0_platform = {
  	.name		= "Removable flash card",
  	.parts		= my_flash0_partitions,
  	.nr_parts	= ARRAY_SIZE(my_flash0_partitions)
  };
  
  #endif
  
  static struct spi_board_info __initdata ecb_at91spi_devices[] = {
  	{	/* DataFlash chip */
  		.modalias	= "mtd_dataflash",
  		.chip_select	= 0,
  		.max_speed_hz	= 10 * 1000 * 1000,
  		.bus_num	= 0,
  #if defined(CONFIG_MTD_DATAFLASH)
  		.platform_data	= &my_flash0_platform,
  #endif
  	},
  	{	/* User accessible spi - cs1 (250KHz) */
  		.modalias	= "spi-cs1",
  		.chip_select	= 1,
  		.max_speed_hz	= 250 * 1000,
  	},
  	{	/* User accessible spi - cs2 (1MHz) */
  		.modalias	= "spi-cs2",
  		.chip_select	= 2,
  		.max_speed_hz	= 1 * 1000 * 1000,
  	},
  	{	/* User accessible spi - cs3 (10MHz) */
  		.modalias	= "spi-cs3",
  		.chip_select	= 3,
  		.max_speed_hz	= 10 * 1000 * 1000,
  	},
  };
  
  /*
   * LEDs
   */
  static struct gpio_led ecb_leds[] = {
  	{	/* D1 */
  		.name			= "led1",
  		.gpio			= AT91_PIN_PC7,
  		.active_low		= 1,
  		.default_trigger	= "heartbeat",
  	}
  };
  
  static void __init ecb_at91board_init(void)
  {
  	/* Serial */
  	/* DBGU on ttyS0. (Rx & Tx only) */
  	at91_register_uart(0, 0, 0);
  
  	/* USART0 on ttyS1. (Rx & Tx only) */
  	at91_register_uart(AT91RM9200_ID_US0, 1, 0);
  	at91_add_device_serial();
  
  	/* Ethernet */
  	at91_add_device_eth(&ecb_at91eth_data);
  
  	/* USB Host */
  	at91_add_device_usbh(&ecb_at91usbh_data);
  
  	/* I2C */
  	at91_add_device_i2c(NULL, 0);
  
  	/* MMC */
  	at91_add_device_mci(0, &ecbat91_mci0_data);
  
  	/* SPI */
  	at91_add_device_spi(ecb_at91spi_devices, ARRAY_SIZE(ecb_at91spi_devices));
  
  	/* LEDs */
  	at91_gpio_leds(ecb_leds, ARRAY_SIZE(ecb_leds));
  }
  
  MACHINE_START(ECBAT91, "emQbit's ECB_AT91")
  	/* Maintainer: emQbit.com */
  	.init_time	= at91rm9200_timer_init,
  	.map_io		= at91_map_io,
  	.handle_irq	= at91_aic_handle_irq,
  	.init_early	= ecb_at91init_early,
  	.init_irq	= at91_init_irq_default,
  	.init_machine	= ecb_at91board_init,
  MACHINE_END