| /* |
| * 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/emma/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] = { |
| [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 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 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 pcibios_map_irq(const 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; |
| } |