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asus/f2a85-m_le: Activate IOMMU support 

Activate the IOMMU for the ASUS F2A85-M LE board.

Enable the IOMMU in `devicetree.cb` and build AGESA IOMMU code by
enabling the option in `buildOpts.c`.

ACPI and MPTABLES interrupt routers are already present since they are
syminks to the F2A85-M version.

```
$ uname -a
Linux nukunuku 4.8.5 #35 SMP Sun Oct 30 19:34:55 CET 2016 x86_64 GNU/Linux
$ lspci -s 0.2
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) I/O Memory Management Unit
$ dmesg | grep -i IOMMU
ACPI: IVRS 0x00000000BFFAFF70 000070 (v02 AMD    AMDIOMMU 00000001 AMD  00000000)
AMD-Vi: Applying erratum 746 workaround for IOMMU at 0000:00:00.2
iommu: Adding device 0000:00:01.0 to group 0
[...]
iommu: Adding device 0000:00:18.5 to group 9
iommu: Adding device 0000:03:00.0 to group 8
AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40
AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
```

Change-Id: I6049fcfad53d16a99495d7a8fbc584c71e371d73
Signed-off-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de>
Reviewed-on: https://review.coreboot.org/18259
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Tobias Diedrich 2017-01-29 18:03:09 +01:00 committed by Martin Roth
parent 3236f7be09
commit 31db6f5e17
2 changed files with 2 additions and 1 deletions
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2
src/mainboard/asus/f2a85-m_le/buildOpts.c
View File

@ -176,7 +176,7 @@
#define BLDCFG_UMA_ABOVE4G_SUPPORT FALSE
#endif
#define BLDCFG_IOMMU_SUPPORT FALSE
#define BLDCFG_IOMMU_SUPPORT TRUE
#define BLDCFG_CFG_GNB_HD_AUDIO TRUE
//#define BLDCFG_IGPU_SUBSYSTEM_ID OEM_IGPU_SSID

1
src/mainboard/asus/f2a85-m_le/devicetree.cb
View File

@ -26,6 +26,7 @@ chip northbridge/amd/agesa/family15tn/root_complex
chip northbridge/amd/agesa/family15tn # PCI side of HT root complex
device pci 0.0 on end # Root Complex
device pci 0.2 on end # IOMMU
device pci 1.0 on end # Internal Graphics P2P bridge 0x99XX
device pci 1.1 on end # Internal Multimedia
device pci 2.0 on end # PCIE SLOT0 x16 blue