1 #include <linux/init.h> 2 #include <linux/kernel.h> 3 #include <linux/pci.h> 4 #include <asm/ip32/ip32_ints.h> 5 /* 6 * O2 has up to 5 PCI devices connected into the MACE bridge. The device 7 * map looks like this: 8 * 9 * 0 aic7xxx 0 10 * 1 aic7xxx 1 11 * 2 expansion slot 12 * 3 N/C 13 * 4 N/C 14 */ 15 16 #define SCSI0 MACEPCI_SCSI0_IRQ 17 #define SCSI1 MACEPCI_SCSI1_IRQ 18 #define INTA0 MACEPCI_SLOT0_IRQ 19 #define INTA1 MACEPCI_SLOT1_IRQ 20 #define INTA2 MACEPCI_SLOT2_IRQ 21 #define INTB MACEPCI_SHARED0_IRQ 22 #define INTC MACEPCI_SHARED1_IRQ 23 #define INTD MACEPCI_SHARED2_IRQ 24 static char irq_tab_mace[][5] __initdata = { 25 /* Dummy INT#A INT#B INT#C INT#D */ 26 {0, 0, 0, 0, 0}, /* This is placeholder row - never used */ 27 {0, SCSI0, SCSI0, SCSI0, SCSI0}, 28 {0, SCSI1, SCSI1, SCSI1, SCSI1}, 29 {0, INTA0, INTB, INTC, INTD}, 30 {0, INTA1, INTC, INTD, INTB}, 31 {0, INTA2, INTD, INTB, INTC}, 32 }; 33 34 35 /* 36 * Given a PCI slot number (a la PCI_SLOT(...)) and the interrupt pin of 37 * the device (1-4 => A-D), tell what irq to use. Note that we don't 38 * in theory have slots 4 and 5, and we never normally use the shared 39 * irqs. I suppose a device without a pin A will thank us for doing it 40 * right if there exists such a broken piece of crap. 41 */ 42 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) 43 { 44 return irq_tab_mace[slot][pin]; 45 } 46 47 /* Do platform specific device initialization at pci_enable_device() time */ 48 int pcibios_plat_dev_init(struct pci_dev *dev) 49 { 50 return 0; 51 } 52