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kernel/linux-imx6_3.14.28/arch/arm/mach-ks8695/board-dsm320.c 2.83 KB
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  /*
   * arch/arm/mach-ks8695/board-dsm320.c
   *
   * DSM-320 D-Link Wireless Media Player, board support.
   *
   * Copyright 2008 Simtec Electronics
   *		  Daniel Silverstone <dsilvers@simtec.co.uk>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  #include <linux/gpio.h>
  #include <linux/kernel.h>
  #include <linux/types.h>
  #include <linux/interrupt.h>
  #include <linux/init.h>
  #include <linux/platform_device.h>
  
  #include <linux/mtd/mtd.h>
  #include <linux/mtd/map.h>
  #include <linux/mtd/physmap.h>
  #include <linux/mtd/partitions.h>
  
  #include <asm/mach-types.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  #include <asm/mach/irq.h>
  
  #include <mach/devices.h>
  #include <mach/gpio-ks8695.h>
  
  #include "generic.h"
  
  #ifdef CONFIG_PCI
  static int dsm320_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  {
  	switch (slot) {
  	case 0:
  		/* PCI-AHB bridge? */
  		return KS8695_IRQ_EXTERN0;
  	case 18:
  		/* Mini PCI slot */
  		return KS8695_IRQ_EXTERN2;
  	case 20:
  		/* RealMAGIC chip */
  		return KS8695_IRQ_EXTERN0;
  	}
  	BUG();
  }
  
  static struct ks8695_pci_cfg __initdata dsm320_pci = {
  	.mode		= KS8695_MODE_MINIPCI,
  	.map_irq	= dsm320_pci_map_irq,
  };
  
  static void __init dsm320_register_pci(void)
  {
  	/* Initialise the GPIO lines for interrupt mode */
  	/* RealMAGIC */
  	ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW);
  	/* MiniPCI Slot */
  	ks8695_gpio_interrupt(KS8695_GPIO_2, IRQ_TYPE_LEVEL_LOW);
  
  	ks8695_init_pci(&dsm320_pci);
  }
  
  #else
  static inline void __init dsm320_register_pci(void) { }
  #endif
  
  static struct physmap_flash_data dsm320_nor_pdata = {
  	.width		= 4,
  	.nr_parts	= 0,
  };
  
  static struct resource dsm320_nor_resource[] = {
  	[0] = {
  		.start = SZ_32M, /* We expect the bootloader to map
  				  * the flash here.
  				  */
  		.end   = SZ_32M + SZ_4M - 1,
  		.flags = IORESOURCE_MEM,
  	}
  };
  
  static struct platform_device dsm320_device_nor = {
  	.name		= "physmap-flash",
  	.id		= -1,
  	.num_resources	= ARRAY_SIZE(dsm320_nor_resource),
  	.resource	= dsm320_nor_resource,
  	.dev		= {
  		.platform_data = &dsm320_nor_pdata,
  	},
  };
  
  void __init dsm320_register_nor(void)
  {
  	int ret;
  
  	ret = platform_device_register(&dsm320_device_nor);
  	if (ret < 0)
  		printk(KERN_ERR "failed to register physmap-flash device
  ");
  }
  
  static void __init dsm320_init(void)
  {
  	/* GPIO registration */
  	ks8695_register_gpios();
  
  	/* PCI registration */
  	dsm320_register_pci();
  
  	/* Network device */
  	ks8695_add_device_lan();	/* eth0 = LAN */
  
  	/* NOR devices */
  	dsm320_register_nor();
  }
  
  MACHINE_START(DSM320, "D-Link DSM-320 Wireless Media Player")
  	/* Maintainer: Simtec Electronics. */
  	.atag_offset	= 0x100,
  	.map_io		= ks8695_map_io,
  	.init_irq	= ks8695_init_irq,
  	.init_machine	= dsm320_init,
  	.init_time	= ks8695_timer_init,
  	.restart	= ks8695_restart,
  MACHINE_END