#include <linux/kernel.h> #include <linux/init.h> #include <linux/types.h> #include <linux/pci.h> #include <asm/debug.h> #include <asm/ddb5xxx/ddb5xxx.h> static struct resource extpci_io_resource = { "pci IO space", 0x1000, /* leave some room for ISA bus */ DDB_PCI_IO_SIZE - 1, IORESOURCE_IO }; static struct resource extpci_mem_resource = { "pci memory space", DDB_PCI_MEM_BASE + 0x00100000, /* leave 1 MB for RTC */ DDB_PCI_MEM_BASE + DDB_PCI_MEM_SIZE - 1, IORESOURCE_MEM }; extern struct pci_ops ddb5476_ext_pci_ops; struct pci_controller ddb5476_controller = { .pci_ops = &ddb5476_ext_pci_ops, .io_resource = &extpci_io_resource, .mem_resource = &extpci_mem_resource }; /* * we fix up irqs based on the slot number. * The first entry is at AD:11. * * This does not work for devices on sub-buses yet. */ /* * temporary */ #define PCI_EXT_INTA 8 #define PCI_EXT_INTB 9 #define PCI_EXT_INTC 10 #define PCI_EXT_INTD 11 #define PCI_EXT_INTE 12 /* * based on ddb5477 manual page 11 */ #define MAX_SLOT_NUM 21 static unsigned char irq_map[MAX_SLOT_NUM] = { [ 2] = 9, /* AD:13 USB */ [ 3] = 10, /* AD:14 PMU */ [ 5] = 0, /* AD:16 P2P bridge */ [ 6] = nile4_to_irq(PCI_EXT_INTB), /* AD:17 */ [ 7] = nile4_to_irq(PCI_EXT_INTC), /* AD:18 */ [ 8] = nile4_to_irq(PCI_EXT_INTD), /* AD:19 */ [ 9] = nile4_to_irq(PCI_EXT_INTA), /* AD:20 */ [13] = 14, /* AD:24 HD controller, M5229 */ }; int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { return irq_map[slot]; } /* Do platform specific device initialization at pci_enable_device() time */ int pcibios_plat_dev_init(struct pci_dev *dev) { return 0; } void __init ddb_pci_reset_bus(void) { u32 temp; /* * I am not sure about the "official" procedure, the following * steps work as far as I know: * We first set PCI cold reset bit (bit 31) in PCICTRL-H. * Then we clear the PCI warm reset bit (bit 30) to 0 in PCICTRL-H. * The same is true for both PCI channels. */ temp = ddb_in32(DDB_PCICTRL + 4); temp |= 0x80000000; ddb_out32(DDB_PCICTRL + 4, temp); temp &= ~0xc0000000; ddb_out32(DDB_PCICTRL + 4, temp); }