diff options
| author | Nico Huber <nico.huber@secunet.com> | 2015-10-21 11:49:23 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-11-04 18:17:19 +0100 |
| commit | bb9469c450a12b876fca3a8c5e02af97c0ef36a1 (patch) | |
| tree | 27fc7a5c188df69a87584e9fbcf119a56f51d8f1 /src/northbridge/intel/sandybridge/early_init.c | |
| parent | b2dae79301d2bb19e17a4c8960b11a16800574f8 (diff) | |
nb/intel/sandybridge: Enable basic IOMMU support
Sandy Bridge and Ivy Bridge processors have two IOMMU units. One for the
integrated graphics controller and one for all other PCI devices. Assign
resources for both IOMMUs and apply some quirks.
Tested with kontron/ktqm77 and a Muen based system that makes use of the
IOMMUs. Not tested on Sandy Bridge, but register dumps show the same
settings that are applied here.
Change-Id: I43b5e20b750e7529f448acac35de173185678fd9
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/12194
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/northbridge/intel/sandybridge/early_init.c')
| -rw-r--r-- | src/northbridge/intel/sandybridge/early_init.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/northbridge/intel/sandybridge/early_init.c b/src/northbridge/intel/sandybridge/early_init.c index b3a829d920..81bf9d5854 100644 --- a/src/northbridge/intel/sandybridge/early_init.c +++ b/src/northbridge/intel/sandybridge/early_init.c @@ -169,6 +169,9 @@ void sandybridge_early_initialization(int chipset_type) /* Setup all BARs required for early PCIe and raminit */ sandybridge_setup_bars(); + /* Setup IOMMU BARs */ + sandybridge_init_iommu(); + /* Device Enable, don't touch PEG bits */ deven = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN) | DEVEN_IGD; pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, deven); |