diff options
Diffstat (limited to 'arch/sh/drivers/pci/fixups-snapgear.c')
| -rw-r--r-- | arch/sh/drivers/pci/fixups-snapgear.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/fixups-snapgear.c b/arch/sh/drivers/pci/fixups-snapgear.c new file mode 100644 index 0000000000..317225c094 --- /dev/null +++ b/arch/sh/drivers/pci/fixups-snapgear.c @@ -0,0 +1,37 @@ +// 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; +} |