[coreboot-gerrit] New patch to review for coreboot: veyron: update mickey sdram-lpddr3-samsung-2GB.inc

[Patrick Georgi (pgeorgi@google.com)]

Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11051

-gerrit

commit 018852cab9a7cca8eb263e3cc5a8cc542fc3679c
Author: jinkun.hong <jinkun.hong at rock-chips.com>
Date:   Thu Jul 23 11:51:51 2015 +0800

    veyron: update mickey sdram-lpddr3-samsung-2GB.inc
    
    Modify MR3_I/O Configuration, Change 34.3 ohms to 60 ohms. This
    resolves an issue that was observed on some Mickey boards with
    the Samsung 2GB LPDDR3 and is believed to be caused by inferior
    routing on the small PCB. (Elpida 2GB LPDDR3 seems unaffected.)
    
    BUG=chrome-os-partner:41905
    TEST=Boot from mickey
    BRANCH=None
    
    Change-Id: Ic20d9eceb00658c214fd032a2f213dbe0d51a91b
    Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
    Original-Commit-Id: 1305010aee6818910ad1dec26d9d948505ca281e
    Original-Change-Id: I5517e07fc5716ed4cd58e5502f13ccd61ffb5357
    Original-Signed-off-by: jinkun.hong <jinkun.hong at rock-chips.com>
    Original-Signed-off-by: Julius Werner <jwerner at chromium.org>
    Original-Reviewed-on: https://chromium-review.googlesource.com/286333
---
 .../google/veyron_mickey/sdram_inf/sdram-lpddr3-samsung-2GB.inc        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mainboard/google/veyron_mickey/sdram_inf/sdram-lpddr3-samsung-2GB.inc b/src/mainboard/google/veyron_mickey/sdram_inf/sdram-lpddr3-samsung-2GB.inc
index 0f15ba5..cc39f62 100644
--- a/src/mainboard/google/veyron_mickey/sdram_inf/sdram-lpddr3-samsung-2GB.inc
+++ b/src/mainboard/google/veyron_mickey/sdram_inf/sdram-lpddr3-samsung-2GB.inc
@@ -65,7 +65,8 @@
 		.mr[0] = 0x0,
 		.mr[1] = 0xC3,
 		.mr[2] = 0x6,
-		.mr[3] = 0x1
+		/* 60Ohms instead of 34.3 due to bad PCB routing on Mickey. */
+		.mr[3] = 0x4
 	},
 	.noc_timing = 0x20D266A4,
 	.noc_activate = 0x5B6,