forked from luck/tmp_suning_uos_patched
1a59d1b8e0
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) NEC Electronics Corporation 2004-2006
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*
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* This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c
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*
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* Copyright 2001 MontaVista Software Inc.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <asm/bootinfo.h>
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#include <asm/emma/emma2rh.h>
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#define EMMA2RH_PCI_HOST_SLOT 0x09
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#define EMMA2RH_USB_SLOT 0x03
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#define PCI_DEVICE_ID_NEC_EMMA2RH 0x014b /* EMMA2RH PCI Host */
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/*
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* we fix up irqs based on the slot number.
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* The first entry is at AD:11.
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* Fortunately this works because, although we have two pci buses,
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* they all have different slot numbers (except for rockhopper slot 20
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* which is handled below).
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*
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*/
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#define MAX_SLOT_NUM 10
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static unsigned char irq_map[][5] = {
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[3] = {0, MARKEINS_PCI_IRQ_INTB, MARKEINS_PCI_IRQ_INTC,
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MARKEINS_PCI_IRQ_INTD, 0,},
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[4] = {0, MARKEINS_PCI_IRQ_INTA, 0, 0, 0,},
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[5] = {0, 0, 0, 0, 0,},
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[6] = {0, MARKEINS_PCI_IRQ_INTC, MARKEINS_PCI_IRQ_INTD,
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MARKEINS_PCI_IRQ_INTA, MARKEINS_PCI_IRQ_INTB,},
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};
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static void nec_usb_controller_fixup(struct pci_dev *dev)
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{
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if (PCI_SLOT(dev->devfn) == EMMA2RH_USB_SLOT)
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/* on board USB controller configuration */
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pci_write_config_dword(dev, 0xe4, 1 << 5);
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
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nec_usb_controller_fixup);
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/*
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* Prevent the PCI layer from seeing the resources allocated to this device
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* if it is the host bridge by marking it as such. These resources are of
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* no consequence to the PCI layer (they are handled elsewhere).
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*/
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static void emma2rh_pci_host_fixup(struct pci_dev *dev)
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{
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int i;
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if (PCI_SLOT(dev->devfn) == EMMA2RH_PCI_HOST_SLOT) {
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dev->class &= 0xff;
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dev->class |= PCI_CLASS_BRIDGE_HOST << 8;
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for (i = 0; i < PCI_NUM_RESOURCES; i++) {
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dev->resource[i].start = 0;
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dev->resource[i].end = 0;
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dev->resource[i].flags = 0;
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}
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}
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_EMMA2RH,
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emma2rh_pci_host_fixup);
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int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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return irq_map[slot][pin];
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}
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/* Do platform specific device initialization at pci_enable_device() time */
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int pcibios_plat_dev_init(struct pci_dev *dev)
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{
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return 0;
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}
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