1/* 2 * PCI support for SBS Palomar IV 3 * 4 * Author: Dan Cox 5 * 6 * 2002 (c) MontaVista, Software, Inc. This file is licensed under 7 * the terms of the GNU General Public License version 2. This program 8 * is licensed "as is" without any warranty of any kind, whether express 9 * or implied. 10 */ 11 12#include <linux/kernel.h> 13#include <linux/init.h> 14#include <linux/pci.h> 15 16#include <asm/byteorder.h> 17#include <asm/machdep.h> 18#include <asm/io.h> 19#include <asm/pci-bridge.h> 20#include <asm/uaccess.h> 21 22#include <syslib/cpc700.h> 23 24#include "pal4.h" 25 26/* not much to this.... */ 27static inline int __init 28pal4_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) 29{ 30 if (idsel == 9) 31 return PAL4_ETH; 32 else 33 return PAL4_INTA + (idsel - 3); 34} 35 36void __init 37pal4_find_bridges(void) 38{ 39 struct pci_controller *hose; 40 41 hose = pcibios_alloc_controller(); 42 if (!hose) 43 return; 44 45 hose->first_busno = 0; 46 hose->last_busno = 0xff; 47 hose->pci_mem_offset = 0; 48 49 /* Could snatch these from the CPC700.... */ 50 pci_init_resource(&hose->io_resource, 51 0x0, 52 0x03ffffff, 53 IORESOURCE_IO, 54 "PCI host bridge"); 55 56 pci_init_resource(&hose->mem_resources[0], 57 0x90000000, 58 0x9fffffff, 59 IORESOURCE_MEM, 60 "PCI host bridge"); 61 62 hose->io_space.start = 0x00800000; 63 hose->io_space.end = 0x03ffffff; 64 hose->mem_space.start = 0x90000000; 65 hose->mem_space.end = 0x9fffffff; 66 hose->io_base_virt = (void *) 0xf8000000; 67 68 setup_indirect_pci(hose, CPC700_PCI_CONFIG_ADDR, 69 CPC700_PCI_CONFIG_DATA); 70 71 hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); 72 73 ppc_md.pci_swizzle = common_swizzle; 74 ppc_md.pci_map_irq = pal4_map_irq; 75} 76