From cf6526c21135f81acca43d1fcc4566d7c1a86681 Mon Sep 17 00:00:00 2001 From: PH Hsu Date: Tue, 17 May 2016 08:47:56 +0800 Subject: mt8173: dram: Add more sample points to improve dram timing margin BRANCH=none BUG=chrome-os-partner:52959 TEST=verified on elm-EVT SKU1/SKU2, Oak-rev5 2GB/4GB models. Change-Id: I228c629d9a3d6cd8fc5c4e8ba24cc52d5283b4e6 Signed-off-by: Martin Roth Original-Commit-Id: 3c19e7d Original-Change-Id: I22356aa8d196c4c126742cfc7e85cc693acd9b39 Original-Signed-off-by: PH Hsu Original-Reviewed-on: https://chromium-review.googlesource.com/347716 Original-Commit-Ready: Yidi Lin Original-Tested-by: Yidi Lin Original-Reviewed-by: Julius Werner Reviewed-on: https://review.coreboot.org/15115 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- .../google/oak/sdram_inf/sdram-lpddr3-K4E6E304EB-4GB.inc | 8 ++++---- src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-2GB.inc | 4 ++-- src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-4GB.inc | 10 +++++----- 3 files changed, 11 insertions(+), 11 deletions(-) (limited to 'src/mainboard/google/oak') diff --git a/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-K4E6E304EB-4GB.inc b/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-K4E6E304EB-4GB.inc index 3dd795d589..0fe16a6104 100644 --- a/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-K4E6E304EB-4GB.inc +++ b/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-K4E6E304EB-4GB.inc @@ -21,12 +21,12 @@ .gating_win = { [CHANNEL_A] = { - { 28, 56}, - { 28, 56} + { 28, 64}, + { 28, 64} }, [CHANNEL_B] = { - { 28, 56}, - { 28, 56} + { 28, 64}, + { 28, 64} } }, diff --git a/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-2GB.inc b/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-2GB.inc index 4e728e358a..578343b7c0 100644 --- a/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-2GB.inc +++ b/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-2GB.inc @@ -21,11 +21,11 @@ .gating_win = { [CHANNEL_A] = { - { 28, 56}, + { 28, 64}, { 0, 0} }, [CHANNEL_B] = { - { 28, 56}, + { 28, 64}, { 0, 0} } }, diff --git a/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-4GB.inc b/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-4GB.inc index 76a1aa9a94..099a07c1dc 100644 --- a/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-4GB.inc +++ b/src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-4GB.inc @@ -21,18 +21,18 @@ .gating_win = { [CHANNEL_A] = { - { 28, 56}, - { 28, 56} + { 28, 64}, + { 28, 64} }, [CHANNEL_B] = { - { 28, 56}, - { 28, 56} + { 28, 64}, + { 28, 64} } }, .rx_dqs_dly = { [CHANNEL_A] = 0x110e0b0b, - [CHANNEL_B] = 0x12100d0d + [CHANNEL_B] = 0x0D100d0d }, .rx_dq_dly = { -- cgit v1.2.3