From 4f870594aa119b02d8154d52173b03c1f7de5679 Mon Sep 17 00:00:00 2001 From: Amanda Huang Date: Thu, 27 May 2021 11:27:18 +0800 Subject: [PATCH] util/spd_tools: Modify MT53E1G32D2NP-046 WT:B LPDDR4 config CB:52586 ("util/spd_tools: Add MT53E1G32D2NP-046 WT:B LPDDR4 config") incorrectly set ranks per channel to 1. However, MT53E1G32D2NP-046 WT:B part has 2 channels per die and 2 physical dies. Each channel in each die shares DQ-DQS lines with the channel in other die and uses separate CS lines. Thus, number of ranks per channel is 2. This change fixes the attribute ranksPerChannel for MT53E1G32D2NP-046 WT:B in LP4x global config by setting it to 2. BUG=b:186616388 Change-Id: Iba87754ca04c2e026a9cbc8ef07412b467140cba Signed-off-by: Amanda Huang Reviewed-on: https://review.coreboot.org/c/coreboot/+/55000 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- util/spd_tools/lp4x/global_lp4x_mem_parts.json.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/util/spd_tools/lp4x/global_lp4x_mem_parts.json.txt b/util/spd_tools/lp4x/global_lp4x_mem_parts.json.txt index d03206452b..8df4472e82 100644 --- a/util/spd_tools/lp4x/global_lp4x_mem_parts.json.txt +++ b/util/spd_tools/lp4x/global_lp4x_mem_parts.json.txt @@ -68,7 +68,7 @@ "channelsPerDie": 2, "diesPerPackage": 2, "bitWidthPerChannel": 16, - "ranksPerChannel": 1, + "ranksPerChannel": 2, "speedMbps": 4267 } },