11da177e4SLinus Torvalds #include <linux/init.h> 21da177e4SLinus Torvalds #include <linux/kernel.h> 31da177e4SLinus Torvalds #include <linux/pci.h> 41da177e4SLinus Torvalds #include <asm/ip32/ip32_ints.h> 51da177e4SLinus Torvalds /* 61da177e4SLinus Torvalds * O2 has up to 5 PCI devices connected into the MACE bridge. The device 71da177e4SLinus Torvalds * map looks like this: 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * 0 aic7xxx 0 101da177e4SLinus Torvalds * 1 aic7xxx 1 111da177e4SLinus Torvalds * 2 expansion slot 121da177e4SLinus Torvalds * 3 N/C 131da177e4SLinus Torvalds * 4 N/C 141da177e4SLinus Torvalds */ 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #define SCSI0 MACEPCI_SCSI0_IRQ 171da177e4SLinus Torvalds #define SCSI1 MACEPCI_SCSI1_IRQ 181da177e4SLinus Torvalds #define INTA0 MACEPCI_SLOT0_IRQ 191da177e4SLinus Torvalds #define INTA1 MACEPCI_SLOT1_IRQ 201da177e4SLinus Torvalds #define INTA2 MACEPCI_SLOT2_IRQ 211da177e4SLinus Torvalds #define INTB MACEPCI_SHARED0_IRQ 221da177e4SLinus Torvalds #define INTC MACEPCI_SHARED1_IRQ 231da177e4SLinus Torvalds #define INTD MACEPCI_SHARED2_IRQ 2419a8d6b7SLorenzo Pieralisi static char irq_tab_mace[][5] = { 251da177e4SLinus Torvalds /* Dummy INT#A INT#B INT#C INT#D */ 261da177e4SLinus Torvalds {0, 0, 0, 0, 0}, /* This is placeholder row - never used */ 271da177e4SLinus Torvalds {0, SCSI0, SCSI0, SCSI0, SCSI0}, 281da177e4SLinus Torvalds {0, SCSI1, SCSI1, SCSI1, SCSI1}, 291da177e4SLinus Torvalds {0, INTA0, INTB, INTC, INTD}, 301da177e4SLinus Torvalds {0, INTA1, INTC, INTD, INTB}, 311da177e4SLinus Torvalds {0, INTA2, INTD, INTB, INTC}, 321da177e4SLinus Torvalds }; 331da177e4SLinus Torvalds 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds /* 361da177e4SLinus Torvalds * Given a PCI slot number (a la PCI_SLOT(...)) and the interrupt pin of 371da177e4SLinus Torvalds * the device (1-4 => A-D), tell what irq to use. Note that we don't 381da177e4SLinus Torvalds * in theory have slots 4 and 5, and we never normally use the shared 391da177e4SLinus Torvalds * irqs. I suppose a device without a pin A will thank us for doing it 401da177e4SLinus Torvalds * right if there exists such a broken piece of crap. 411da177e4SLinus Torvalds */ 4219a8d6b7SLorenzo Pieralisi int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) 431da177e4SLinus Torvalds { 441da177e4SLinus Torvalds return irq_tab_mace[slot][pin]; 451da177e4SLinus Torvalds } 461da177e4SLinus Torvalds 471da177e4SLinus Torvalds /* Do platform specific device initialization at pci_enable_device() time */ 481da177e4SLinus Torvalds int pcibios_plat_dev_init(struct pci_dev *dev) 491da177e4SLinus Torvalds { 501da177e4SLinus Torvalds return 0; 511da177e4SLinus Torvalds } 52