1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * linux/arch/arm/mach-footbridge/ebsa285-pci.c 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * PCI bios-type initialisation for PCI machines 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * Bits taken from various places. 81da177e4SLinus Torvalds */ 91da177e4SLinus Torvalds #include <linux/kernel.h> 101da177e4SLinus Torvalds #include <linux/pci.h> 111da177e4SLinus Torvalds #include <linux/init.h> 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #include <asm/irq.h> 141da177e4SLinus Torvalds #include <asm/mach/pci.h> 151da177e4SLinus Torvalds #include <asm/mach-types.h> 161da177e4SLinus Torvalds 171da177e4SLinus Torvalds static int irqmap_ebsa285[] __initdata = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI }; 181da177e4SLinus Torvalds 19d5341942SRalf Baechle static int __init ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) 201da177e4SLinus Torvalds { 211da177e4SLinus Torvalds if (dev->vendor == PCI_VENDOR_ID_CONTAQ && 221da177e4SLinus Torvalds dev->device == PCI_DEVICE_ID_CONTAQ_82C693) 231da177e4SLinus Torvalds switch (PCI_FUNC(dev->devfn)) { 241da177e4SLinus Torvalds case 1: return 14; 251da177e4SLinus Torvalds case 2: return 15; 261da177e4SLinus Torvalds case 3: return 12; 271da177e4SLinus Torvalds } 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds return irqmap_ebsa285[(slot + pin) & 3]; 301da177e4SLinus Torvalds } 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds static struct hw_pci ebsa285_pci __initdata = { 331da177e4SLinus Torvalds .map_irq = ebsa285_map_irq, 341da177e4SLinus Torvalds .nr_controllers = 1, 35c23bfc38SRussell King .ops = &dc21285_ops, 361da177e4SLinus Torvalds .setup = dc21285_setup, 371da177e4SLinus Torvalds .preinit = dc21285_preinit, 381da177e4SLinus Torvalds .postinit = dc21285_postinit, 391da177e4SLinus Torvalds }; 401da177e4SLinus Torvalds 411da177e4SLinus Torvalds static int __init ebsa285_init_pci(void) 421da177e4SLinus Torvalds { 431da177e4SLinus Torvalds if (machine_is_ebsa285()) 441da177e4SLinus Torvalds pci_common_init(&ebsa285_pci); 451da177e4SLinus Torvalds return 0; 461da177e4SLinus Torvalds } 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds subsys_initcall(ebsa285_init_pci); 49