soc/mediatek/mt8192: Add a placeholder for the EMI driver

Add minimal function to report SDRAM size.

Signed-off-by: CK Hu <ck.hu@mediatek.com>
Change-Id: If74b6b52dd6e91d1ff40cf8460b6a03b2f3bb6f6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43961
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 20 insertions, 0 deletions

diff --git a/src/soc/mediatek/mt8192/emi.c b/src/soc/mediatek/mt8192/emi.c
new file mode 100644
index 0000000000..7b1d3c2113
--- /dev/null
+++ b/src/soc/mediatek/mt8192/emi.c
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/emi.h>
+
+size_t sdram_size(void)
+{
+	size_t dram_size = 0x100000000;
+
+	return dram_size;
+}
diff --git a/src/soc/mediatek/mt8192/include/soc/emi.h b/src/soc/mediatek/mt8192/include/soc/emi.h
new file mode 100644
index 0000000000..0348573bd0
--- /dev/null
+++ b/src/soc/mediatek/mt8192/include/soc/emi.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_MEDIATEK_MT8192_EMI_H
+#define SOC_MEDIATEK_MT8192_EMI_H
+
+#include <types.h>
+
+size_t sdram_size(void);
+
+#endif /* SOC_MEDIATEK_MT8192_EMI_H */