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kernel/linux-imx6_3.14.28/arch/mips/pci/pci-lasat.c 2.1 KB
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  /*
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (C) 2000, 2001, 04 Keith M Wesolowski
   */
  #include <linux/init.h>
  #include <linux/kernel.h>
  #include <linux/pci.h>
  #include <linux/types.h>
  
  #include <asm/lasat/lasat.h>
  
  #include <irq.h>
  
  extern struct pci_ops nile4_pci_ops;
  extern struct pci_ops gt64xxx_pci0_ops;
  static struct resource lasat_pci_mem_resource = {
  	.name	= "LASAT PCI MEM",
  	.start	= 0x18000000,
  	.end	= 0x19ffffff,
  	.flags	= IORESOURCE_MEM,
  };
  
  static struct resource lasat_pci_io_resource = {
  	.name	= "LASAT PCI IO",
  	.start	= 0x1a000000,
  	.end	= 0x1bffffff,
  	.flags	= IORESOURCE_IO,
  };
  
  static struct pci_controller lasat_pci_controller = {
  	.mem_resource	= &lasat_pci_mem_resource,
  	.io_resource	= &lasat_pci_io_resource,
  };
  
  static int __init lasat_pci_setup(void)
  {
  	printk(KERN_DEBUG "PCI: starting
  ");
  
  	if (IS_LASAT_200())
  		lasat_pci_controller.pci_ops = &nile4_pci_ops;
  	else
  		lasat_pci_controller.pci_ops = &gt64xxx_pci0_ops;
  
  	register_pci_controller(&lasat_pci_controller);
  
  	return 0;
  }
  
  arch_initcall(lasat_pci_setup);
  
  #define LASAT_IRQ_ETH1	 (LASAT_IRQ_BASE + 0)
  #define LASAT_IRQ_ETH0	 (LASAT_IRQ_BASE + 1)
  #define LASAT_IRQ_HDC	 (LASAT_IRQ_BASE + 2)
  #define LASAT_IRQ_COMP	 (LASAT_IRQ_BASE + 3)
  #define LASAT_IRQ_HDLC	 (LASAT_IRQ_BASE + 4)
  #define LASAT_IRQ_PCIA	 (LASAT_IRQ_BASE + 5)
  #define LASAT_IRQ_PCIB	 (LASAT_IRQ_BASE + 6)
  #define LASAT_IRQ_PCIC	 (LASAT_IRQ_BASE + 7)
  #define LASAT_IRQ_PCID	 (LASAT_IRQ_BASE + 8)
  
  int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  {
  	switch (slot) {
  	case 1:
  	case 2:
  	case 3:
  		return LASAT_IRQ_PCIA + (((slot-1) + (pin-1)) % 4);
  	case 4:
  		return LASAT_IRQ_ETH1;	 /* Ethernet 1 (LAN 2) */
  	case 5:
  		return LASAT_IRQ_ETH0;	 /* Ethernet 0 (LAN 1) */
  	case 6:
  		return LASAT_IRQ_HDC;	 /* IDE controller */
  	default:
  		return 0xff;		/* Illegal */
  	}
  
  	return -1;
  }
  
  /* Do platform specific device initialization at pci_enable_device() time */
  int pcibios_plat_dev_init(struct pci_dev *dev)
  {
  	return 0;
  }