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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-12-01 22:08:18 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-12-07 12:59:28 +0100 |
| commit | 6f66f414a0907f79abf492cd9eca839c0849c7f6 (patch) | |
| tree | 3e74145128261014798af58111db31d616fd43dd /src/device/pci_ops.c | |
| parent | 891b6c4d199418a08ba88e42d6c8945ce05205f1 (diff) | |
| download | coreboot-6f66f414a0907f79abf492cd9eca839c0849c7f6.tar.gz coreboot-6f66f414a0907f79abf492cd9eca839c0849c7f6.tar.bz2 coreboot-6f66f414a0907f79abf492cd9eca839c0849c7f6.zip | |
PCI ops: MMCONF_SUPPORT_DEFAULT is required
Doing PCI config operations via MMIO window by default is a
requirement, if supported by the platform. This means chipset
or CPU code must enable MMCONF operations early in bootblock
already, or before platform-specific romstage entry.
Platforms are allowed to have NO_MMCONF_SUPPORT only in the
case it is actually not implemented in the silicon.
Change-Id: Id4d9029dec2fe195f09373320de800fcdf88c15d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17693
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/device/pci_ops.c')
| -rw-r--r-- | src/device/pci_ops.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/device/pci_ops.c b/src/device/pci_ops.c index 2f896d2bcc5e..b6fc32d6cf65 100644 --- a/src/device/pci_ops.c +++ b/src/device/pci_ops.c @@ -22,11 +22,10 @@ const struct pci_bus_operations *pci_bus_default_ops(device_t dev) { -#if CONFIG_MMCONF_SUPPORT_DEFAULT + if (IS_ENABLED(CONFIG_NO_MMCONF_SUPPORT)) + return &pci_cf8_conf1; + return &pci_ops_mmconf; -#else - return &pci_cf8_conf1; -#endif } static const struct pci_bus_operations *pci_bus_ops(struct bus *bus, struct device *dev) |