[coreboot-gerrit] Patch set updated for coreboot: rockchip/rk3399: lower kevin board sdram frequency to 800MHz

[Patrick Georgi (pgeorgi@google.com)]

Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16709

-gerrit

commit df903c20bbc5669a0500f8cd11bc37203a0365c0
Author: Lin Huang <hl at rock-chips.com>
Date:   Thu Sep 8 11:16:26 2016 -0700

    rockchip/rk3399: lower kevin board sdram frequency to 800MHz
    
    We found some boards are not stable when sdram is run at 933Mhz.
    Before we can fix it, we need to lower the sdram frequency to 800MHz.
    In this patch we modify the DQS delay from 0x280 to 0x260 and extend
    the DQS window.
    
    BRANCH=None
    BUG=chrome-os-partner:56940
    TEST=Booted Kevin.
    
    Change-Id: I68561c4aa4d9ab66acfa3515a42d696157aff759
    Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
    Original-Commit-Id: 877a7f6ad22a5bde9f9e458bcb65f133f2f001bd
    Original-Change-Id: I5eab6bbe96f0dae095c5353403292022e7a25421
    Original-Signed-off-by: Lin Huang <hl at rock-chips.com>
    Original-Reviewed-on: https://chromium-review.googlesource.com/382724
    Original-Commit-Ready: Douglas Anderson <dianders at chromium.org>
    Original-Tested-by: Douglas Anderson <dianders at chromium.org>
    Original-Reviewed-by: Douglas Anderson <dianders at chromium.org>
---
 src/mainboard/google/gru/sdram_configs.c           |  4 +--
 .../gru/sdram_params/sdram-lpddr3-hynix-4GB-800.c  | 40 +++++++++++-----------
 2 files changed, 21 insertions(+), 23 deletions(-)

diff --git a/src/mainboard/google/gru/sdram_configs.c b/src/mainboard/google/gru/sdram_configs.c
index 2ececdf..1235eff 100644
--- a/src/mainboard/google/gru/sdram_configs.c
+++ b/src/mainboard/google/gru/sdram_configs.c
@@ -56,10 +56,8 @@ static enum dram_speeds get_sdram_index(void)
 			return dram_200MHz;
 		case 3:
 			return dram_666MHz_NO_ODT;
-		case 4:
-			return dram_800MHz;
 		default:
-			return dram_933MHz;
+			return dram_800MHz;
 		}
 
 	if (IS_ENABLED(CONFIG_BOARD_GOOGLE_GRU))
diff --git a/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800.c b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800.c
index 3a937bf..034e9d8 100644
--- a/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800.c
+++ b/src/mainboard/google/gru/sdram_params/sdram-lpddr3-hynix-4GB-800.c
@@ -660,11 +660,11 @@ struct rk3399_sdram_params params = {
 			0x00000000,	/* DENALI_PHY_56_DATA */
 			0x00000000,	/* DENALI_PHY_57_DATA */
 			0x00000000,	/* DENALI_PHY_58_DATA */
-			0x02800280,	/* DENALI_PHY_59_DATA */
-			0x02800280,	/* DENALI_PHY_60_DATA */
-			0x02800280,	/* DENALI_PHY_61_DATA */
-			0x02800280,	/* DENALI_PHY_62_DATA */
-			0x00000280,	/* DENALI_PHY_63_DATA */
+			0x02600260,	/* DENALI_PHY_59_DATA */
+			0x02600260,	/* DENALI_PHY_60_DATA */
+			0x02600260,	/* DENALI_PHY_61_DATA */
+			0x02600260,	/* DENALI_PHY_62_DATA */
+			0x00000260,	/* DENALI_PHY_63_DATA */
 			0x00000000,	/* DENALI_PHY_64_DATA */
 			0x00000000,	/* DENALI_PHY_65_DATA */
 			0x00000000,	/* DENALI_PHY_66_DATA */
@@ -788,11 +788,11 @@ struct rk3399_sdram_params params = {
 			0x00000000,	/* DENALI_PHY_184_DATA */
 			0x00000000,	/* DENALI_PHY_185_DATA */
 			0x00000000,	/* DENALI_PHY_186_DATA */
-			0x02800280,	/* DENALI_PHY_187_DATA */
-			0x02800280,	/* DENALI_PHY_188_DATA */
-			0x02800280,	/* DENALI_PHY_189_DATA */
-			0x02800280,	/* DENALI_PHY_190_DATA */
-			0x00000280,	/* DENALI_PHY_191_DATA */
+			0x02600260,	/* DENALI_PHY_187_DATA */
+			0x02600260,	/* DENALI_PHY_188_DATA */
+			0x02600260,	/* DENALI_PHY_189_DATA */
+			0x02600260,	/* DENALI_PHY_190_DATA */
+			0x00000260,	/* DENALI_PHY_191_DATA */
 			0x00000000,	/* DENALI_PHY_192_DATA */
 			0x00000000,	/* DENALI_PHY_193_DATA */
 			0x00000000,	/* DENALI_PHY_194_DATA */
@@ -916,11 +916,11 @@ struct rk3399_sdram_params params = {
 			0x00000000,	/* DENALI_PHY_312_DATA */
 			0x00000000,	/* DENALI_PHY_313_DATA */
 			0x00000000,	/* DENALI_PHY_314_DATA */
-			0x02800280,	/* DENALI_PHY_315_DATA */
-			0x02800280,	/* DENALI_PHY_316_DATA */
-			0x02800280,	/* DENALI_PHY_317_DATA */
-			0x02800280,	/* DENALI_PHY_318_DATA */
-			0x00000280,	/* DENALI_PHY_319_DATA */
+			0x02600260,	/* DENALI_PHY_315_DATA */
+			0x02600260,	/* DENALI_PHY_316_DATA */
+			0x02600260,	/* DENALI_PHY_317_DATA */
+			0x02600260,	/* DENALI_PHY_318_DATA */
+			0x00000260,	/* DENALI_PHY_319_DATA */
 			0x00000000,	/* DENALI_PHY_320_DATA */
 			0x00000000,	/* DENALI_PHY_321_DATA */
 			0x00000000,	/* DENALI_PHY_322_DATA */
@@ -1044,11 +1044,11 @@ struct rk3399_sdram_params params = {
 			0x00000000,	/* DENALI_PHY_440_DATA */
 			0x00000000,	/* DENALI_PHY_441_DATA */
 			0x00000000,	/* DENALI_PHY_442_DATA */
-			0x02800280,	/* DENALI_PHY_443_DATA */
-			0x02800280,	/* DENALI_PHY_444_DATA */
-			0x02800280,	/* DENALI_PHY_445_DATA */
-			0x02800280,	/* DENALI_PHY_446_DATA */
-			0x00000280,	/* DENALI_PHY_447_DATA */
+			0x02600260,	/* DENALI_PHY_443_DATA */
+			0x02600260,	/* DENALI_PHY_444_DATA */
+			0x02600260,	/* DENALI_PHY_445_DATA */
+			0x02600260,	/* DENALI_PHY_446_DATA */
+			0x00000260,	/* DENALI_PHY_447_DATA */
 			0x00000000,	/* DENALI_PHY_448_DATA */
 			0x00000000,	/* DENALI_PHY_449_DATA */
 			0x00000000,	/* DENALI_PHY_450_DATA */