soc/mediatek: Add `MEDIATEK_DRAM_ADAPTIVE` config to support dram adaptive

Starting from MT8195, MediaTek platform supports "dram adaptive" to
automatically detect dram information, including channel, rank, die
size..., and can automatically configure EMI settings. So we can just
pass a placeholder param blob to `mt_mem_init_run` by enabling this
option.

Platforms (MT8173, MT8183, MT8192) which do not support "dram adaptive"
need to implement `get_sdram_config` to get onboard DRAM configuration
info.

TEST=emerge-geralt coreboot && emerge-asurada coreboot
TEST=CONFIG_MEDIATEK_DRAM_ADAPTIVE is set to y on geralt
TEST=CONFIG_MEDIATEK_DRAM_ADAPTIVE is no set on asurada

Change-Id: I05a01b1ab13fbf19b2a908c48a540a5c2e1ccbdc
Signed-off-by: Yidi Lin <yidilin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80687
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/src/soc/mediatek/mt8186/include/soc/dramc_param.h b/src/soc/mediatek/mt8186/include/soc/dramc_param.h
index 2d6212b169..29380c2127 100644
--- a/src/soc/mediatek/mt8186/include/soc/dramc_param.h
+++ b/src/soc/mediatek/mt8186/include/soc/dramc_param.h
@@ -78,7 +78,6 @@ struct dramc_param {
 	struct dramc_data dramc_datas;
 };
 
-const struct sdram_info *get_sdram_config(void);
 struct dramc_param *get_dramc_param_from_blob(void *blob);
 void dump_param_header(const void *blob);
 int initialize_dramc_param(void *blob);