78 строки
1.6 KiB
C
78 строки
1.6 KiB
C
/*
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* arch/ppc/platforms/pal4_pci.c
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*
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* PCI support for SBS Palomar IV
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*
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* Author: Dan Cox
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*
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* 2002 (c) MontaVista, Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <asm/byteorder.h>
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#include <asm/machdep.h>
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#include <asm/io.h>
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#include <asm/pci-bridge.h>
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#include <asm/uaccess.h>
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#include <syslib/cpc700.h>
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#include "pal4.h"
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/* not much to this.... */
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static inline int __init
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pal4_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
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{
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if (idsel == 9)
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return PAL4_ETH;
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else
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return PAL4_INTA + (idsel - 3);
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}
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void __init
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pal4_find_bridges(void)
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{
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struct pci_controller *hose;
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hose = pcibios_alloc_controller();
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if (!hose)
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return;
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hose->first_busno = 0;
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hose->last_busno = 0xff;
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hose->pci_mem_offset = 0;
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/* Could snatch these from the CPC700.... */
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pci_init_resource(&hose->io_resource,
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0x0,
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0x03ffffff,
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IORESOURCE_IO,
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"PCI host bridge");
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pci_init_resource(&hose->mem_resources[0],
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0x90000000,
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0x9fffffff,
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IORESOURCE_MEM,
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"PCI host bridge");
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hose->io_space.start = 0x00800000;
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hose->io_space.end = 0x03ffffff;
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hose->mem_space.start = 0x90000000;
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hose->mem_space.end = 0x9fffffff;
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hose->io_base_virt = (void *) 0xf8000000;
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setup_indirect_pci(hose, CPC700_PCI_CONFIG_ADDR,
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CPC700_PCI_CONFIG_DATA);
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hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
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ppc_md.pci_swizzle = common_swizzle;
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ppc_md.pci_map_irq = pal4_map_irq;
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}
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