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62 lines
1.4 KiB
62 lines
1.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* arch/arm/mach-ixp4xx/coyote-pci.c |
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* |
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* PCI setup routines for ADI Engineering Coyote platform |
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* |
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* Copyright (C) 2002 Jungo Software Technologies. |
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* Copyright (C) 2003 MontaVista Softwrae, Inc. |
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* |
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* Maintainer: Deepak Saxena <[email protected]> |
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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/irq.h> |
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#include <asm/mach/pci.h> |
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#include "irqs.h" |
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#define SLOT0_DEVID 14 |
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#define SLOT1_DEVID 15 |
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/* PCI controller GPIO to IRQ pin mappings */ |
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#define SLOT0_INTA 6 |
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#define SLOT1_INTA 11 |
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void __init coyote_pci_preinit(void) |
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{ |
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irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW); |
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irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW); |
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ixp4xx_pci_preinit(); |
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} |
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static int __init coyote_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
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{ |
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if (slot == SLOT0_DEVID) |
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return IXP4XX_GPIO_IRQ(SLOT0_INTA); |
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else if (slot == SLOT1_DEVID) |
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return IXP4XX_GPIO_IRQ(SLOT1_INTA); |
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else return -1; |
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} |
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struct hw_pci coyote_pci __initdata = { |
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.nr_controllers = 1, |
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.ops = &ixp4xx_ops, |
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.preinit = coyote_pci_preinit, |
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.setup = ixp4xx_setup, |
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.map_irq = coyote_map_irq, |
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}; |
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int __init coyote_pci_init(void) |
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{ |
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if (machine_is_adi_coyote()) |
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pci_common_init(&coyote_pci); |
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return 0; |
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} |
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subsys_initcall(coyote_pci_init);
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