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57c8cb8f24
Implement support for OF inside the lantiq PCI driver. The patch also splits pcibios_plat_dev_init and pcibios_map_irq out into their own file to accomodate coexistance with the upcoming pcie driver. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3806/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* Copyright (C) 2012 John Crispin <blogic@openwrt.org>
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*/
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#include <linux/of_irq.h>
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#include <linux/of_pci.h>
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int (*ltq_pci_plat_arch_init)(struct pci_dev *dev) = NULL;
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int (*ltq_pci_plat_dev_init)(struct pci_dev *dev) = NULL;
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int pcibios_plat_dev_init(struct pci_dev *dev)
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{
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if (ltq_pci_plat_arch_init)
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return ltq_pci_plat_arch_init(dev);
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if (ltq_pci_plat_dev_init)
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return ltq_pci_plat_dev_init(dev);
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return 0;
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}
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int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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struct of_irq dev_irq;
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int irq;
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if (of_irq_map_pci(dev, &dev_irq)) {
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dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n",
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slot, pin);
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return 0;
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}
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irq = irq_create_of_mapping(dev_irq.controller, dev_irq.specifier,
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dev_irq.size);
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dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq);
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return irq;
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}
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