[coreboot-gerrit] Patch set updated for coreboot: asus/f2a85-m: Activate IOMMU support

[Paul Menzel (paulepanter@users.sourceforge.net)]

Paul Menzel (paulepanter at users.sourceforge.net) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3517

-gerrit

commit 20e0160b4de60e208bf10e7b9358e57c37e20036
Author: Rudolf Marek <r.marek at assembler.cz>
Date:   Mon May 27 16:12:00 2013 +0200

    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 at assembler.cz>
---
 src/mainboard/asus/f2a85-m/buildOpts.c   | 2 +-
 src/mainboard/asus/f2a85-m/devicetree.cb | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mainboard/asus/f2a85-m/buildOpts.c b/src/mainboard/asus/f2a85-m/buildOpts.c
index b812cd5..3c9371c 100644
--- a/src/mainboard/asus/f2a85-m/buildOpts.c
+++ b/src/mainboard/asus/f2a85-m/buildOpts.c
@@ -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
diff --git a/src/mainboard/asus/f2a85-m/devicetree.cb b/src/mainboard/asus/f2a85-m/devicetree.cb
index 4562557..b501dc2 100644
--- a/src/mainboard/asus/f2a85-m/devicetree.cb
+++ b/src/mainboard/asus/f2a85-m/devicetree.cb
@@ -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