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/*
* Copyright (C) ADMtek Incorporated.
* Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
* Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
* Copyright (C) 2007 OpenWrt.org
*/
#include <linux/autoconf.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <adm5120_info.h>
#include <adm5120_defs.h>
extern struct pci_ops adm5120_pci_ops;
#define PCI_CMM_IOACC_EN 0x1
#define PCI_CMM_MEMACC_EN 0x2
#define PCI_CMM_MASTER_EN 0x4
#define PCI_CMM_DEF \
(PCI_CMM_IOACC_EN | PCI_CMM_MEMACC_EN | PCI_CMM_MASTER_EN)
#define PCI_DEF_CACHE_LINE_SZ 4
struct resource pci_io_resource = {
.name = "ADM5120 PCI I/O",
.start = ADM5120_PCIIO_BASE,
.end = ADM5120_PCICFG_ADDR-1,
.flags = IORESOURCE_IO
};
struct resource pci_mem_resource = {
.name = "ADM5120 PCI MEM",
.start = ADM5120_PCIMEM_BASE,
.end = ADM5120_PCIIO_BASE-1,
.flags = IORESOURCE_MEM
};
static struct pci_controller adm5120_controller = {
.pci_ops = &adm5120_pci_ops,
.io_resource = &pci_io_resource,
.mem_resource = &pci_mem_resource,
};
int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
if (slot < 2 || slot > 4)
return -1;
return slot + 4;
}
static void adm5120_pci_fixup(struct pci_dev *dev)
{
if (dev->devfn == 0) {
pci_write_config_word(dev, PCI_COMMAND, PCI_CMM_DEF);
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
PCI_DEF_CACHE_LINE_SZ);
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0);
pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0);
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, adm5120_pci_fixup);
int pcibios_plat_dev_init(struct pci_dev *dev)
{
return 0;
}
static int __init adm5120_pci_setup(void)
{
int pci_bios;
pci_bios = adm5120_has_pci();
printk("adm5120: system has %sPCI BIOS\n", pci_bios ? "" : "no ");
if (pci_bios == 0)
return 1;
/* Avoid ISA compat ranges. */
PCIBIOS_MIN_IO = 0x00000000;
PCIBIOS_MIN_MEM = 0x00000000;
/* Set I/O resource limits. */
ioport_resource.end = 0x1fffffff;
iomem_resource.end = 0xffffffff;
register_pci_controller(&adm5120_controller);
return 0;
}
arch_initcall(adm5120_pci_setup);
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