1 #include <console/console.h>
3 #include <arch/pciconf.h>
4 #include <device/pci.h>
5 #include <device/pci_ids.h>
6 #include <device/pci_ops.h>
8 * Functions for accessing PCI configuration space with type 1 accesses
11 #if CONFIG_PCI_IO_CFG_EXT == 0
12 #define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | \
13 (devfn << 8) | (where & ~3))
15 #define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | \
16 (devfn << 8) | ((where & 0xff) & ~3) |\
17 ((where & 0xf00)<<16))
20 static uint8_t pci_conf1_read_config8(struct bus *pbus, int bus, int devfn,
23 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
24 return inb(0xCFC + (where & 3));
27 static uint16_t pci_conf1_read_config16(struct bus *pbus, int bus, int devfn,
30 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
31 return inw(0xCFC + (where & 2));
34 static uint32_t pci_conf1_read_config32(struct bus *pbus, int bus, int devfn,
37 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
41 static void pci_conf1_write_config8(struct bus *pbus, int bus, int devfn,
42 int where, uint8_t value)
44 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
45 outb(value, 0xCFC + (where & 3));
48 static void pci_conf1_write_config16(struct bus *pbus, int bus, int devfn,
49 int where, uint16_t value)
51 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
52 outw(value, 0xCFC + (where & 2));
55 static void pci_conf1_write_config32(struct bus *pbus, int bus, int devfn,
56 int where, uint32_t value)
58 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
64 const struct pci_bus_operations pci_cf8_conf1 = {
65 .read8 = pci_conf1_read_config8,
66 .read16 = pci_conf1_read_config16,
67 .read32 = pci_conf1_read_config32,
68 .write8 = pci_conf1_write_config8,
69 .write16 = pci_conf1_write_config16,
70 .write32 = pci_conf1_write_config32,