From 9f10950426e830752be1f49f1d50922ad6499420 Mon Sep 17 00:00:00 2001 From: Ryan Chuang Date: Thu, 25 Nov 2021 16:15:27 +0800 Subject: vc/mediatek/mt8195: Fix rank1 CKE setting for single-rank DRAM Fix the issue that power consumption of single rank DRAM is greater than dual rank DRAM due to incorrect settings of rank1 CKE. Set rank1 CKE to the correct state to fix this issue. BUG=b:196867407 TEST=DUT can boot to OS. Signed-off-by: Ryan Chuang Change-Id: If336197aea4770dda1332b6e83da8ec9a4f9d77b Reviewed-on: https://review.coreboot.org/c/coreboot/+/59715 Tested-by: build bot (Jenkins) Reviewed-by: Yu-Ping Wu --- src/vendorcode/mediatek/mt8195/dramc/dramc_pi_main.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/vendorcode') diff --git a/src/vendorcode/mediatek/mt8195/dramc/dramc_pi_main.c b/src/vendorcode/mediatek/mt8195/dramc/dramc_pi_main.c index e7e8f899a5..e3baf7bba2 100644 --- a/src/vendorcode/mediatek/mt8195/dramc/dramc_pi_main.c +++ b/src/vendorcode/mediatek/mt8195/dramc/dramc_pi_main.c @@ -1946,6 +1946,11 @@ int Init_DRAM(DRAM_DRAM_TYPE_T dram_type, DRAM_CBT_MODE_EXTERN_T dram_cbt_mode_e #endif } + if (p->support_rank_num == RANK_SINGLE){ + CKEFixOnOff(p, RANK_1, CKE_DYNAMIC, TO_ALL_CHANNEL); + mcSHOW_DBG_MSG(("Set RANK1 CKE to DYNAMIC\n")); + } + #if (FOR_DV_SIMULATION_USED == 0 && SW_CHANGE_FOR_SIMULATION == 0) U32 backup_broadcast; backup_broadcast = GetDramcBroadcast(); -- cgit v1.2.3