[coreboot-gerrit] New patch to review for coreboot: 4697621 northbridge/amd/amdfam10: Increase MMIO hole size to 1GB

Timothy Pearson (tpearson@raptorengineeringinc.com) gerrit at coreboot.org
Thu Jun 4 20:37:01 CEST 2015

Timothy Pearson (tpearson at raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10428


commit 46976214ffd656e0027eed7b82368b0e70083f0b
Author: Timothy Pearson <tpearson at raptorengineeringinc.com>
Date:   Thu Jun 4 13:35:45 2015 -0500

    northbridge/amd/amdfam10: Increase MMIO hole size to 1GB
    On modern mainboards with multiple PCI-e devices and a single
    graphics card the default MMIO hole size of 512M is inadequate,
    leading to resource-hungry PCI-e devices (such as an external
    graphics card) being assigned invalid MMIO ranges.  This, in
    turn, causes the entire PCI subsystem to become unavailable,
    leading to a failure to boot.
    TEST: Booted KGPE-D16 with nVidia 7300LE and verified proper
    operation of PCI/PCI-e devices, including text mode VGA operation
    via the add-on card and its VGA option ROM.
    Change-Id: I8d25f4b19f2d0860644ab1ee002c15041437121f
    Signed-off-by: Timothy Pearson <tpearson at raptorengineeringinc.com>
 src/northbridge/amd/amdfam10/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/northbridge/amd/amdfam10/Kconfig b/src/northbridge/amd/amdfam10/Kconfig
index b298ee1..2984ee1 100644
--- a/src/northbridge/amd/amdfam10/Kconfig
+++ b/src/northbridge/amd/amdfam10/Kconfig
@@ -41,7 +41,7 @@ config HW_MEM_HOLE_SIZE_AUTO_INC
-	default 0xe0000000
+	default 0xc0000000

More information about the coreboot-gerrit mailing list