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kernel/linux-imx6_3.14.28/arch/arm/mach-footbridge/ebsa285-pci.c 1.04 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * linux/arch/arm/mach-footbridge/ebsa285-pci.c
   *
   * PCI bios-type initialisation for PCI machines
   *
   * Bits taken from various places.
   */
  #include <linux/kernel.h>
  #include <linux/pci.h>
  #include <linux/init.h>
  
  #include <asm/irq.h>
  #include <asm/mach/pci.h>
  #include <asm/mach-types.h>
  
  static int irqmap_ebsa285[] __initdata = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };
  
  static int __init ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  {
  	if (dev->vendor == PCI_VENDOR_ID_CONTAQ &&
  	    dev->device == PCI_DEVICE_ID_CONTAQ_82C693)
  		switch (PCI_FUNC(dev->devfn)) {
  		case 1:	return 14;
  		case 2:	return 15;
  		case 3:	return 12;
  		}
  
  	return irqmap_ebsa285[(slot + pin) & 3];
  }
  
  static struct hw_pci ebsa285_pci __initdata = {
  	.map_irq		= ebsa285_map_irq,
  	.nr_controllers		= 1,
  	.ops			= &dc21285_ops,
  	.setup			= dc21285_setup,
  	.preinit		= dc21285_preinit,
  	.postinit		= dc21285_postinit,
  };
  
  static int __init ebsa285_init_pci(void)
  {
  	if (machine_is_ebsa285())
  		pci_common_init(&ebsa285_pci);
  	return 0;
  }
  
  subsys_initcall(ebsa285_init_pci);