1/* 2 * arch/sh/drivers/pci/ops-titan.c 3 * 4 * Ported to new API by Paul Mundt <lethal@linux-sh.org> 5 * 6 * Modified from ops-snapgear.c written by David McCullough 7 * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. 8 * 9 * May be copied or modified under the terms of the GNU General Public 10 * License. See linux/COPYING for more information. 11 * 12 * PCI initialization for the Titan boards 13 */ 14#include <linux/kernel.h> 15#include <linux/types.h> 16#include <linux/init.h> 17#include <linux/pci.h> 18#include <linux/io.h> 19#include <asm/titan.h> 20#include "pci-sh4.h" 21 22static char titan_irq_tab[] __initdata = { 23 TITAN_IRQ_WAN, 24 TITAN_IRQ_LAN, 25 TITAN_IRQ_MPCIA, 26 TITAN_IRQ_MPCIB, 27 TITAN_IRQ_USB, 28}; 29 30int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) 31{ 32 int irq = titan_irq_tab[slot]; 33 34 printk("PCI: Mapping TITAN IRQ for slot %d, pin %c to irq %d\n", 35 slot, pin - 1 + 'A', irq); 36 37 return irq; 38} 39 40static struct resource sh7751_io_resource = { 41 .name = "SH7751_IO", 42 .start = SH7751_PCI_IO_BASE, 43 .end = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1, 44 .flags = IORESOURCE_IO 45}; 46 47static struct resource sh7751_mem_resource = { 48 .name = "SH7751_mem", 49 .start = SH7751_PCI_MEMORY_BASE, 50 .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, 51 .flags = IORESOURCE_MEM 52}; 53 54struct pci_channel board_pci_channels[] = { 55 { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, 56 { NULL, NULL, NULL, 0, 0 }, 57}; 58EXPORT_SYMBOL(board_pci_channels); 59 60static struct sh4_pci_address_map sh7751_pci_map = { 61 .window0 = { 62 .base = SH7751_CS2_BASE_ADDR, 63 .size = SH7751_MEM_REGION_SIZE*2, /* cs2 and cs3 */ 64 }, 65 66 .window1 = { 67 .base = SH7751_CS2_BASE_ADDR, 68 .size = SH7751_MEM_REGION_SIZE*2, 69 }, 70 71 .flags = SH4_PCIC_NO_RESET, 72}; 73 74int __init pcibios_init_platform(void) 75{ 76 return sh7751_pcic_init(&sh7751_pci_map); 77} 78