[coreboot-gerrit] New patch to review for coreboot: a9f65af northbridge/amd/amdmct: Honor MMCONF_BASE_ADDRESS

[Timothy Pearson (tpearson@raptorengineeringinc.com)]

Timothy Pearson (tpearson at raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10427

-gerrit

commit a9f65af84c145b426825644e2fd7c384cdbbd4cf
Author: Timothy Pearson <tpearson at raptorengineeringinc.com>
Date:   Thu Jun 4 13:34:23 2015 -0500

    northbridge/amd/amdmct: Honor MMCONF_BASE_ADDRESS
    
    The MMIO hole start address was hardcoded on AMD Family 10h
    systems.  Use the MMCONF_BASE_ADDRESS Kconfig setting instead.
    
    Change-Id: I204e904d96d14e99529fa5e524fd73e6ea256dc0
    Signed-off-by: Timothy Pearson <tpearson at raptorengineeringinc.com>
---
 src/northbridge/amd/amdmct/wrappers/mcti_d.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/src/northbridge/amd/amdmct/wrappers/mcti_d.c b/src/northbridge/amd/amdmct/wrappers/mcti_d.c
index 1706fce..3c730af 100644
--- a/src/northbridge/amd/amdmct/wrappers/mcti_d.c
+++ b/src/northbridge/amd/amdmct/wrappers/mcti_d.c
@@ -159,17 +159,15 @@ static u16 mctGet_NVbits(u8 index)
 		//val = 1;	/* enable */
 		break;
 	case NV_BottomIO:
-#if !CONFIG_GFXUMA
-		val = 0xE0;	/* address bits [31:24] */
-#elif CONFIG_GFXUMA
-		val = 0xC0;	/* address bits [31:24] */
-#endif
-		break;
 	case NV_BottomUMA:
+		/* address bits [31:24] */
 #if !CONFIG_GFXUMA
-		val = 0xE0;	/* address bits [31:24] */
+		val = (CONFIG_MMCONF_BASE_ADDRESS >> 24);
 #elif CONFIG_GFXUMA
-		val = 0xC0;	/* address bits [31:24] */
+  #if CONFIG_MMCONF_BASE_ADDRESS < 0x21000000)
+  #error "MMCONF_BASE_ADDRESS is too small"
+  #endif
+		val = (CONFIG_MMCONF_BASE_ADDRESS - 0x20000000 >> 24);
 #endif
 		break;
 	case NV_ECC: