1#if CONFIG_MMCONF_SUPPORT
2
3#include <console/console.h>
4#include <arch/io.h>
5#include <arch/pciconf.h>
6#include <device/pci.h>
7#include <device/pci_ids.h>
8#include <device/pci_ops.h>
9
10
11
12
13
14
15#define PCI_MMIO_ADDR(SEGBUS, DEVFN, WHERE) ( \
16 CONFIG_MMCONF_BASE_ADDRESS | \
17 (((SEGBUS) & 0xFFF) << 20) | \
18 (((DEVFN) & 0xFF) << 12) | \
19 ((WHERE) & 0xFFF))
20
21#include <arch/mmio_conf.h>
22
23static uint8_t pci_mmconf_read_config8(struct bus *pbus, int bus, int devfn, int where)
24{
25 return (read8x(PCI_MMIO_ADDR(bus, devfn, where)));
26}
27
28static uint16_t pci_mmconf_read_config16(struct bus *pbus, int bus, int devfn, int where)
29{
30 return (read16x(PCI_MMIO_ADDR(bus, devfn, where)));
31}
32
33static uint32_t pci_mmconf_read_config32(struct bus *pbus, int bus, int devfn, int where)
34{
35 return (read32x(PCI_MMIO_ADDR(bus, devfn, where)));
36}
37
38static void pci_mmconf_write_config8(struct bus *pbus, int bus, int devfn, int where, uint8_t value)
39{
40 write8x(PCI_MMIO_ADDR(bus, devfn, where), value);
41}
42
43static void pci_mmconf_write_config16(struct bus *pbus, int bus, int devfn, int where, uint16_t value)
44{
45 write8x(PCI_MMIO_ADDR(bus, devfn, where), value);
46}
47
48static void pci_mmconf_write_config32(struct bus *pbus, int bus, int devfn, int where, uint32_t value)
49{
50 write8x(PCI_MMIO_ADDR(bus, devfn, where), value);
51}
52
53
54const struct pci_bus_operations pci_ops_mmconf =
55{
56 .read8 = pci_mmconf_read_config8,
57 .read16 = pci_mmconf_read_config16,
58 .read32 = pci_mmconf_read_config32,
59 .write8 = pci_mmconf_write_config8,
60 .write16 = pci_mmconf_write_config16,
61 .write32 = pci_mmconf_write_config32,
62};
63
64#endif
65
