/* * 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; }