Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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.... */ |
| 27 | static inline int __init |
| 28 | pal4_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 | |
| 36 | void __init |
| 37 | pal4_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 | } |