From 1f21a96c842c285308fd0b433a578ce101483aa1 Mon Sep 17 00:00:00 2001 From: Mario Scheithauer Date: Wed, 10 Jul 2019 13:15:54 +0200 Subject: mb/siemens/{mc_apl1,...,mc_apl5}: Reduce eMMC bus speed mode We need to reduce the eMMC bus speed for these Apollo Lake mainboards because of a limitation on Intel side for industry use cases. Change-Id: Ide6a1a302001c0752d149bfdab175a27c8f8cc35 Signed-off-by: Mario Scheithauer Reviewed-on: https://review.coreboot.org/c/coreboot/+/34196 Tested-by: build bot (Jenkins) Reviewed-by: Werner Zeh --- src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb') diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb index 5f1c9857d4..3b28a26396 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb @@ -44,7 +44,7 @@ chip soc/intel/apollolake register "emmc_rx_cmd_data_cntl2" = "0x10008" # 0:HS400(Default), 1:HS200, 2:DDR50 - register "emmc_host_max_speed" = "2" + register "emmc_host_max_speed" = "1" # Enable Vtd feature register "enable_vtd" = "1" -- cgit v1.2.3