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