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asus/f2a85-m: Activate IOMMU support 

Activate the IOMMU support for the Asus F2A85-M.

Add the device to `devicetree.cb`.

    $ lspci -s 0.2
    […]
    00:00.2 IOMMU: Advanced Micro Devices [AMD] Family 15h (Models 10h-1fh) I/O Memory Management Unit
    $ dmesg
    […]
    [    0.000000] ACPI: IVRS 00000000bf144e10 00070 (v02  AMD   AMDIOMMU 00000001 AMD  00000000)
    [    0.000000] ACPI: SSDT 00000000bf144e80 0051F (v02    AMD     ALIB 00000001 MSFT 04000000)
    [    0.000000] ACPI: SSDT 00000000bf1453a0 006B2 (v01 AMD    POWERNOW 00000001 AMD  00000001)
    [    0.000000] ACPI: SSDT 00000000bf145a52 00045 (v02 CORE   COREBOOT 0000002A CORE 0000002A)
    […]

Linux 3.10 reported several IO page faults, which could never be explained and
which the vendor firmware did not. These errors couldn’t be reproduced with
Linux 3.18 by Damien Zammit.

Change-Id: I0aa530be17d31656e65db6113343f2ea7008b843
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Reviewed-on: http://review.coreboot.org/3517
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Rudolf Marek 2013-05-27 16:12:00 +02:00 committed by Patrick Georgi
parent 99e1a672ec
commit a00e61599a
2 changed files with 2 additions and 1 deletions
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2
src/mainboard/asus/f2a85-m/buildOpts.c
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@ -181,7 +181,7 @@
#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/devicetree.cb
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@ -30,6 +30,7 @@ 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