Files
Linux_Drivers/linux_5.10/arch/sh/drivers/pci/fixups-snapgear.c
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

38 lines
1002 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* arch/sh/drivers/pci/ops-snapgear.c
*
* Author: David McCullough <davidm@snapgear.com>
*
* Ported to new API by Paul Mundt <lethal@linux-sh.org>
*
* Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
*
* PCI initialization for the SnapGear boards
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/sh_intc.h>
#include "pci-sh4.h"
int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
int irq = -1;
switch (slot) {
case 8: /* the PCI bridge */ break;
case 11: irq = evt2irq(0x300); break; /* USB */
case 12: irq = evt2irq(0x360); break; /* PCMCIA */
case 13: irq = evt2irq(0x2a0); break; /* eth0 */
case 14: irq = evt2irq(0x300); break; /* eth1 */
case 15: irq = evt2irq(0x360); break; /* safenet (unused) */
}
printk("PCI: Mapping SnapGear IRQ for slot %d, pin %c to irq %d\n",
slot, pin - 1 + 'A', irq);
return irq;
}