Aladyshev Konstantin ([email protected]) just uploaded a new patch set to gerrit, 
which you can find at http://review.coreboot.org/2193

-gerrit

commit b6fe575f20e55b4b29cb3b28ac79e156ef47a219
Author: Konstantin Aladyshev <[email protected]>
Date:   Fri Jan 25 19:20:51 2013 +0400

    Supermicro H8QGI: Fix MMCONF range limit
    
    MMCONF space is defined by two config parameters:
    MMCONF_BASE_ADDRESS (0xF800 0000)
    MMCONF_BUS_NUMBER (64)
    
    Coreboot allocates 1MB per bus, so MMCONF limit should be:
    0xF800 0000 + 64*(0x0010 0000) - 1 = 0xFBFF FFFF
    
    Current code haven't (-1) component, this makes MMCONF limit equal 0xFC00 
FFFF
    Add (-1) to correct this issue.
    
    Change-Id: I2c6494c28bb8d36e54ceb2aa7d8d965b0103cbe9
    Signed-off-by: Konstantin Aladyshev <[email protected]>
---
 src/mainboard/supermicro/h8qgi/agesawrapper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mainboard/supermicro/h8qgi/agesawrapper.c 
b/src/mainboard/supermicro/h8qgi/agesawrapper.c
index 9720bed..517e136 100644
--- a/src/mainboard/supermicro/h8qgi/agesawrapper.c
+++ b/src/mainboard/supermicro/h8qgi/agesawrapper.c
@@ -147,7 +147,7 @@ static UINT32 agesawrapper_amdinitcpuio(VOID)
                 * coreboot not implemente the range by range setting yet.
                 */
                PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, 
FUNC_1, 0xBC);
-               PciData = CONFIG_MMCONF_BASE_ADDRESS + 
(CONFIG_MMCONF_BUS_NUMBER * 0x100000);//1MB each bus
+               PciData = CONFIG_MMCONF_BASE_ADDRESS + 
(CONFIG_MMCONF_BUS_NUMBER * 0x100000) - 1;//1MB each bus
                PciData = (PciData >> 8) & 0xFFFFFF00;
                PciData |= 0x80; //NP
                PciData |= sblink << 4;

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