1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * arch/sh/drivers/pci/ops-snapgear.c 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Author: David McCullough <davidm@snapgear.com> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Ported to new API by Paul Mundt <lethal@linux-sh.org> 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. 10*4882a593Smuzhiyun * 11*4882a593Smuzhiyun * PCI initialization for the SnapGear boards 12*4882a593Smuzhiyun */ 13*4882a593Smuzhiyun #include <linux/kernel.h> 14*4882a593Smuzhiyun #include <linux/types.h> 15*4882a593Smuzhiyun #include <linux/init.h> 16*4882a593Smuzhiyun #include <linux/pci.h> 17*4882a593Smuzhiyun #include <linux/sh_intc.h> 18*4882a593Smuzhiyun #include "pci-sh4.h" 19*4882a593Smuzhiyun pcibios_map_platform_irq(const struct pci_dev * pdev,u8 slot,u8 pin)20*4882a593Smuzhiyunint pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin) 21*4882a593Smuzhiyun { 22*4882a593Smuzhiyun int irq = -1; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun switch (slot) { 25*4882a593Smuzhiyun case 8: /* the PCI bridge */ break; 26*4882a593Smuzhiyun case 11: irq = evt2irq(0x300); break; /* USB */ 27*4882a593Smuzhiyun case 12: irq = evt2irq(0x360); break; /* PCMCIA */ 28*4882a593Smuzhiyun case 13: irq = evt2irq(0x2a0); break; /* eth0 */ 29*4882a593Smuzhiyun case 14: irq = evt2irq(0x300); break; /* eth1 */ 30*4882a593Smuzhiyun case 15: irq = evt2irq(0x360); break; /* safenet (unused) */ 31*4882a593Smuzhiyun } 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun printk("PCI: Mapping SnapGear IRQ for slot %d, pin %c to irq %d\n", 34*4882a593Smuzhiyun slot, pin - 1 + 'A', irq); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun return irq; 37*4882a593Smuzhiyun } 38