From ffe63e27966e4c370262ba50f55dc50603165618 Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Thu, 6 Aug 2015 09:28:03 -0700 Subject: [PATCH] veyron: mickey sdram-lpddr3-samsung-2GB.inc now 40 Ohm The value of 0x4 (60 Ohm) apperas to be causing lots of problems. Since 0x1 (34.3 Ohm) was _almost_ right, let's try 0x2 (40 Ohm) and hope it's the sweet spot. BRANCH=None BUG=chrome-os-partner:43626 TEST=My mickey now boots up Signed-off-by: Patrick Georgi Original-Commit-Id: 06db96e00d39972edbaf8429cbe88bbc66804e15 Original-Change-Id: If8b7d51d058ae000c0af189a648c62fa38a872ac Original-Signed-off-by: Douglas Anderson Original-Reviewed-on: https://chromium-review.googlesource.com/291121 Original-Reviewed-by: Julius Werner Original-(cherry picked from commit 0dabadca1ab3bb310f85646d020bdcf672014071) Original-Reviewed-on: https://chromium-review.googlesource.com/291291 Change-Id: Id32790c894c09616e32503aa790fa294093eca8a Reviewed-on: http://review.coreboot.org/11386 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- .../veyron_mickey/sdram_inf/sdram-lpddr3-samsung-2GB.inc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) 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 cc39f621c2..666b12fbd3 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 @@ -65,8 +65,8 @@ .mr[0] = 0x0, .mr[1] = 0xC3, .mr[2] = 0x6, - /* 60Ohms instead of 34.3 due to bad PCB routing on Mickey. */ - .mr[3] = 0x4 + /* 40 Ohms instead of 34.3 due to bad PCB routing on Mickey. */ + .mr[3] = 0x2 }, .noc_timing = 0x20D266A4, .noc_activate = 0x5B6,