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 <rex-bc.chen@mediatek.com>
Change-Id: Iebe9ea0c1d01890b09fdf586813d85adde9702e1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63109
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
diff --git a/src/soc/mediatek/common/Kconfig b/src/soc/mediatek/common/Kconfig
index cd3b2a2..2adb344 100644
--- a/src/soc/mediatek/common/Kconfig
+++ b/src/soc/mediatek/common/Kconfig
@@ -50,4 +50,10 @@
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 0850d0f..ab1ccb5 100644
--- a/src/soc/mediatek/common/memory.c
+++ b/src/soc/mediatek/common/memory.c
@@ -134,6 +134,12 @@
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);