New patch to review for coreboot: nb/intel/x4x: Increase MMIO PCI space to 2GiB

[Damien Zammit]

Damien Zammit ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16494

-gerrit

commit ef0a933b90bb1a0045a5d68d0c4cbd6a37dfa851
Author: Damien Zammit 
Date:   Mon Sep 5 02:32:40 2016 +1000

nb/intel/x4x: Increase MMIO PCI space to 2GiB

This is necessary for PCI express graphics card add-ons,
    otherwise the pci allocator cannot fit the mmio for the
    add on card into the space it has available and the OS
    turns off the card.  Old value was 1GiB.

Change-Id: I606994501b15e636fe209d1ed4b3d3f73b42bf5c
    Signed-off-by: Damien Zammit 
---
 src/northbridge/intel/x4x/raminit_ddr2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/northbridge/intel/x4x/raminit_ddr2.c b/src/northbridge/intel/x4x/raminit_ddr2.c
index ed6ab60..206ea0b 100644
--- a/src/northbridge/intel/x4x/raminit_ddr2.c
+++ b/src/northbridge/intel/x4x/raminit_ddr2.c
@@ -1633,7 +1633,7 @@ static void mmap_ddr2(struct sysinfo *s)
    gfxsize = ggc2uma[(ggc & 0xf0) >> 4];
    gttsize = ggc2gtt[(ggc & 0xf00) >> 8];
    tsegsize = 1; // 1MB TSEG
-	mmiosize = 0x400; // 1GB MMIO
+	mmiosize = 0x800; // 2GB MMIO
    tom = s->channel_capacity[0] + s->channel_capacity[1] - ME_UMA_SIZEMB;
    tolud = MIN(0x1000 - mmiosize, tom);