From c69ea24ba8beb88c0d4948986e90769b6115d8bd Mon Sep 17 00:00:00 2001 From: Rex-BC Chen Date: Fri, 25 Mar 2022 15:53:22 +0800 Subject: [PATCH] soc/mediatek: Add a configurate "USE_CBMEM_DRAM_INFO" The memory initialization reference code didn't support returning DRAM information in the old platforms, for example MT8192 and MT8195. So we have to add a new configuration USE_CBMEM_DRAM_INFO to make sure the common code will try to get DRAM information on new platforms supporting that. BUG=none TEST=build pass Signed-off-by: Rex-BC Chen Change-Id: Iebe9ea0c1d01890b09fdf586813d85adde9702e1 Reviewed-on: https://review.coreboot.org/c/coreboot/+/63109 Tested-by: build bot (Jenkins) Reviewed-by: Yu-Ping Wu --- src/soc/mediatek/common/Kconfig | 6 ++++++ src/soc/mediatek/common/memory.c | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/src/soc/mediatek/common/Kconfig b/src/soc/mediatek/common/Kconfig index cd3b2a223b..2adb34458d 100644 --- a/src/soc/mediatek/common/Kconfig +++ b/src/soc/mediatek/common/Kconfig @@ -50,4 +50,10 @@ config MTK_DFD and dumps to internal RAM on the WDT reset. We reserve 1MB on DRAM to store logs of DFD. +config USE_CBMEM_DRAM_INFO + bool "Support filling dram information to cbmem" + help + The DRAM initialization will keep and return DRAM information (size, + geometry and other DDR info) so we can fill that into the CBMEM. + endif diff --git a/src/soc/mediatek/common/memory.c b/src/soc/mediatek/common/memory.c index 0850d0f71a..ab1ccb5044 100644 --- a/src/soc/mediatek/common/memory.c +++ b/src/soc/mediatek/common/memory.c @@ -134,6 +134,12 @@ static void add_mem_chip_info(int unused) struct mem_chip_info *mc; size_t size; + if (!CONFIG(USE_CBMEM_DRAM_INFO)) { + printk(BIOS_DEBUG, + "DRAM-K: CBMEM DRAM info is unsupported (USE_CBMEM_DRAM_INFO)\n"); + return; + } + size = sizeof(*mc) + sizeof(struct mem_chip_channel) * CHANNEL_MAX; mc = cbmem_add(CBMEM_ID_MEM_CHIP_INFO, size); assert(mc);