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c23bfc3835
Most PCI implementations perform simple root bus scanning. Rather than having each group of platforms provide a duplicated bus scan function, provide the PCI configuration ops structure via the hw_pci structure, and call the root bus scanning function from core ARM PCI code. Acked-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/*
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* arch/arch/mach-ixp4xx/wg302v2-pci.c
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*
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* PCI setup routines for the Netgear WG302 v2 and WAG302 v2
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*
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* Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
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*
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* based on coyote-pci.c:
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* Copyright (C) 2002 Jungo Software Technologies.
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* Copyright (C) 2003 MontaVista Software, Inc.
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*
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* Maintainer: Imre Kaloz <kaloz@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/init.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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void __init wg302v2_pci_preinit(void)
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{
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irq_set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
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irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
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ixp4xx_pci_preinit();
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}
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static int __init wg302v2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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if (slot == 1)
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return IRQ_IXP4XX_GPIO8;
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else if (slot == 2)
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return IRQ_IXP4XX_GPIO9;
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else return -1;
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}
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struct hw_pci wg302v2_pci __initdata = {
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.nr_controllers = 1,
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.ops = &ixp4xx_ops,
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.preinit = wg302v2_pci_preinit,
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.setup = ixp4xx_setup,
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.map_irq = wg302v2_map_irq,
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};
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int __init wg302v2_pci_init(void)
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{
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if (machine_is_wg302v2())
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pci_common_init(&wg302v2_pci);
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return 0;
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}
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subsys_initcall(wg302v2_pci_init);
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