mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
101 lines
3 KiB
C
101 lines
3 KiB
C
/*
|
|
* arch/mips/pci/fixup-emma2rh.c
|
|
* This file defines the PCI configration.
|
|
*
|
|
* Copyright (C) NEC Electronics Corporation 2004-2006
|
|
*
|
|
* This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c
|
|
*
|
|
* Copyright 2001 MontaVista Software Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/types.h>
|
|
#include <linux/pci.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/debug.h>
|
|
|
|
#include <asm/emma2rh/emma2rh.h>
|
|
|
|
#define EMMA2RH_PCI_HOST_SLOT 0x09
|
|
#define EMMA2RH_USB_SLOT 0x03
|
|
#define PCI_DEVICE_ID_NEC_EMMA2RH 0x014b /* EMMA2RH PCI Host */
|
|
|
|
/*
|
|
* we fix up irqs based on the slot number.
|
|
* The first entry is at AD:11.
|
|
* Fortunately this works because, although we have two pci buses,
|
|
* they all have different slot numbers (except for rockhopper slot 20
|
|
* which is handled below).
|
|
*
|
|
*/
|
|
|
|
#define MAX_SLOT_NUM 10
|
|
static unsigned char irq_map[][5] __initdata = {
|
|
[3] = {0, MARKEINS_PCI_IRQ_INTB, MARKEINS_PCI_IRQ_INTC,
|
|
MARKEINS_PCI_IRQ_INTD, 0,},
|
|
[4] = {0, MARKEINS_PCI_IRQ_INTA, 0, 0, 0,},
|
|
[5] = {0, 0, 0, 0, 0,},
|
|
[6] = {0, MARKEINS_PCI_IRQ_INTC, MARKEINS_PCI_IRQ_INTD,
|
|
MARKEINS_PCI_IRQ_INTA, MARKEINS_PCI_IRQ_INTB,},
|
|
};
|
|
|
|
static void __devinit nec_usb_controller_fixup(struct pci_dev *dev)
|
|
{
|
|
if (PCI_SLOT(dev->devfn) == EMMA2RH_USB_SLOT)
|
|
/* on board USB controller configuration */
|
|
pci_write_config_dword(dev, 0xe4, 1 << 5);
|
|
}
|
|
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
|
|
nec_usb_controller_fixup);
|
|
|
|
/*
|
|
* Prevent the PCI layer from seeing the resources allocated to this device
|
|
* if it is the host bridge by marking it as such. These resources are of
|
|
* no consequence to the PCI layer (they are handled elsewhere).
|
|
*/
|
|
static void __devinit emma2rh_pci_host_fixup(struct pci_dev *dev)
|
|
{
|
|
int i;
|
|
|
|
if (PCI_SLOT(dev->devfn) == EMMA2RH_PCI_HOST_SLOT) {
|
|
dev->class &= 0xff;
|
|
dev->class |= PCI_CLASS_BRIDGE_HOST << 8;
|
|
for (i = 0; i < PCI_NUM_RESOURCES; i++) {
|
|
dev->resource[i].start = 0;
|
|
dev->resource[i].end = 0;
|
|
dev->resource[i].flags = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_EMMA2RH,
|
|
emma2rh_pci_host_fixup);
|
|
|
|
int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
return irq_map[slot][pin];
|
|
}
|
|
|
|
/* Do platform specific device initialization at pci_enable_device() time */
|
|
int pcibios_plat_dev_init(struct pci_dev *dev)
|
|
{
|
|
return 0;
|
|
}
|