1 /* 2 * This program is free software; you can redistribute it and/or modify it 3 * under the terms of the GNU General Public License version 2 as published 4 * by the Free Software Foundation. 5 * 6 * Copyright (C) 2012 John Crispin <blogic@openwrt.org> 7 */ 8 9 #include <linux/of_irq.h> 10 #include <linux/of_pci.h> 11 12 int (*ltq_pci_plat_arch_init)(struct pci_dev *dev) = NULL; 13 int (*ltq_pci_plat_dev_init)(struct pci_dev *dev) = NULL; 14 15 int pcibios_plat_dev_init(struct pci_dev *dev) 16 { 17 if (ltq_pci_plat_arch_init) 18 return ltq_pci_plat_arch_init(dev); 19 20 if (ltq_pci_plat_dev_init) 21 return ltq_pci_plat_dev_init(dev); 22 23 return 0; 24 } 25 26 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) 27 { 28 struct of_irq dev_irq; 29 int irq; 30 31 if (of_irq_map_pci(dev, &dev_irq)) { 32 dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n", 33 slot, pin); 34 return 0; 35 } 36 irq = irq_create_of_mapping(dev_irq.controller, dev_irq.specifier, 37 dev_irq.size); 38 dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq); 39 return irq; 40 } 41