mb/google/corsola: Fully calibrate DRAM
Initialize and calibrate DRAM in romstage.
DRAM full calibration logs:
dram_init: dram init end (result: 1)
DRAM-K: Full calibration passed in 20014 msecs
TEST=DRAM full calibration pass.
BUG=b:202871018
Signed-off-by: Ryan Chuang <ryan.chuang@mediatek.corp-partner.google.com>
Change-Id: I80a18a8be5b1d47a5f0f7afed9601c0884e69035
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60386
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
diff --git a/src/mainboard/google/corsola/Makefile.inc b/src/mainboard/google/corsola/Makefile.inc
index 1a9a1c28..e1e363c 100644
--- a/src/mainboard/google/corsola/Makefile.inc
+++ b/src/mainboard/google/corsola/Makefile.inc
@@ -11,6 +11,7 @@
romstage-y += chromeos.c
romstage-y += regulator.c
romstage-y += romstage.c
+romstage-y += sdram_configs.c
ramstage-y += memlayout.ld
ramstage-y += boardid.c
diff --git a/src/mainboard/google/corsola/romstage.c b/src/mainboard/google/corsola/romstage.c
index aff496b..8d03b5b 100644
--- a/src/mainboard/google/corsola/romstage.c
+++ b/src/mainboard/google/corsola/romstage.c
@@ -3,6 +3,7 @@
#include <arch/stages.h>
#include <console/console.h>
#include <delay.h>
+#include <soc/emi.h>
#include <soc/mt6366.h>
#include <soc/pll_common.h>
#include <soc/regulator.h>
@@ -26,4 +27,5 @@
mt6366_init();
raise_little_cpu_freq();
rtc_boot();
+ mtk_dram_init();
}
diff --git a/src/mainboard/google/corsola/sdram_configs.c b/src/mainboard/google/corsola/sdram_configs.c
new file mode 100644
index 0000000..f565f53
--- /dev/null
+++ b/src/mainboard/google/corsola/sdram_configs.c
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/dramc_param.h>
+
+const struct sdram_info *get_sdram_config(void)
+{
+ /*
+ * The MT8186 platform supports "dram adaptive" feature to
+ * automatically detect dram information, including channel, rank, die size...,
+ * and can automatically configure EMI settings.
+ * So we will be passing a placeholder param blob.
+ */
+ static struct sdram_info params;
+ return ¶ms;
+}