1/* 2 * arch/sh/drivers/pci/ops-landisk.c 3 * 4 * PCI initialization for the I-O DATA Device, Inc. LANDISK board 5 * 6 * Copyright (C) 2006 kogiidena 7 * 8 * May be copied or modified under the terms of the GNU General Public 9 * License. See linux/COPYING for more information. 10 */ 11#include <linux/kernel.h> 12#include <linux/types.h> 13#include <linux/init.h> 14#include <linux/delay.h> 15#include <linux/pci.h> 16#include "pci-sh4.h" 17 18static struct resource sh7751_io_resource = { 19 .name = "SH7751 IO", 20 .start = SH7751_PCI_IO_BASE, 21 .end = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1, 22 .flags = IORESOURCE_IO 23}; 24 25static struct resource sh7751_mem_resource = { 26 .name = "SH7751 mem", 27 .start = SH7751_PCI_MEMORY_BASE, 28 .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, 29 .flags = IORESOURCE_MEM 30}; 31 32struct pci_channel board_pci_channels[] = { 33 {&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff}, 34 {NULL, NULL, NULL, 0, 0}, 35}; 36 37static struct sh4_pci_address_map sh7751_pci_map = { 38 .window0 = { 39 .base = SH7751_CS3_BASE_ADDR, 40 .size = (64 << 20), /* 64MB */ 41 }, 42 43 .flags = SH4_PCIC_NO_RESET, 44}; 45 46int __init pcibios_init_platform(void) 47{ 48 return sh7751_pcic_init(&sh7751_pci_map); 49} 50 51int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) 52{ 53 /* 54 * slot0: pin1-4 = irq5,6,7,8 55 * slot1: pin1-4 = irq6,7,8,5 56 * slot2: pin1-4 = irq7,8,5,6 57 * slot3: pin1-4 = irq8,5,6,7 58 */ 59 int irq = ((slot + pin - 1) & 0x3) + 5; 60 61 if ((slot | (pin - 1)) > 0x3) { 62 printk("PCI: Bad IRQ mapping request for slot %d pin %c\n", 63 slot, pin - 1 + 'A'); 64 return -1; 65 } 66 return irq; 67} 68