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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>
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* arch/arm/mach-ixp4xx/gtwx5715-pci.c
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*
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* Gemtek GTWX5715 (Linksys WRV54G) board setup
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*
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* Copyright (C) 2004 George T. Joseph
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* Derived from Coyote
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*/
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <asm/mach/pci.h>
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#include "irqs.h"
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#define SLOT0_DEVID 0
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#define SLOT1_DEVID 1
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#define INTA 10 /* slot 1 has INTA and INTB crossed */
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#define INTB 11
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/*
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* Slot 0 isn't actually populated with a card connector but
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* we initialize it anyway in case a future version has the
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* slot populated or someone with good soldering skills has
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* some free time.
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*/
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void __init gtwx5715_pci_preinit(void)
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{
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irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
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irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
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ixp4xx_pci_preinit();
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}
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static int __init gtwx5715_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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int rc = -1;
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if ((slot == SLOT0_DEVID && pin == 1) ||
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(slot == SLOT1_DEVID && pin == 2))
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rc = IXP4XX_GPIO_IRQ(INTA);
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else if ((slot == SLOT0_DEVID && pin == 2) ||
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(slot == SLOT1_DEVID && pin == 1))
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rc = IXP4XX_GPIO_IRQ(INTB);
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printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n",
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__func__, slot, pin, rc);
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return rc;
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}
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struct hw_pci gtwx5715_pci __initdata = {
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.nr_controllers = 1,
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.ops = &ixp4xx_ops,
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.preinit = gtwx5715_pci_preinit,
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.setup = ixp4xx_setup,
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.map_irq = gtwx5715_map_irq,
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};
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int __init gtwx5715_pci_init(void)
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{
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if (machine_is_gtwx5715())
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pci_common_init(>wx5715_pci);
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return 0;
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}
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subsys_initcall(gtwx5715_pci_init);
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