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) | (devfn << 8) | (where & ~3))
14 #define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | (devfn << 8) | ((where & 0xff) & ~3) | ((where & 0xf00)<<16) )
17 static uint8_t pci_conf1_read_config8(struct bus *pbus, int bus, int devfn, int where)
19 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
20 return inb(0xCFC + (where & 3));
23 static uint16_t pci_conf1_read_config16(struct bus *pbus, int bus, int devfn, int where)
25 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
26 return inw(0xCFC + (where & 2));
29 static uint32_t pci_conf1_read_config32(struct bus *pbus, int bus, int devfn, int where)
31 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
35 static void pci_conf1_write_config8(struct bus *pbus, int bus, int devfn, int where, uint8_t value)
37 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
38 outb(value, 0xCFC + (where & 3));
41 static void pci_conf1_write_config16(struct bus *pbus, int bus, int devfn, int where, uint16_t value)
43 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
44 outw(value, 0xCFC + (where & 2));
47 static void pci_conf1_write_config32(struct bus *pbus, int bus, int devfn, int where, uint32_t value)
49 outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
55 const struct pci_bus_operations pci_cf8_conf1 =
57 .read8 = pci_conf1_read_config8,
58 .read16 = pci_conf1_read_config16,
59 .read32 = pci_conf1_read_config32,
60 .write8 = pci_conf1_write_config8,
61 .write16 = pci_conf1_write_config16,
62 .write32 = pci_conf1_write_config32,