diff --git a/plat/mediatek/drivers/msdc/mt8186/mt_msdc_priv.h b/plat/mediatek/drivers/msdc/mt8186/mt_msdc_priv.h
new file mode 100644
index 0000000..b3337ca
--- /dev/null
+++ b/plat/mediatek/drivers/msdc/mt8186/mt_msdc_priv.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2022, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_MSDC_PRIV_H
+#define MT_MSDC_PRIV_H
+
+#define MSDC_CQHCI_CFG 0x808
+#define MSDC_CQHCI_CRYPTO_ENABLE BIT(1)
+
+#endif
diff --git a/plat/mediatek/drivers/msdc/mt_msdc.c b/plat/mediatek/drivers/msdc/mt_msdc.c
new file mode 100644
index 0000000..ccf440f
--- /dev/null
+++ b/plat/mediatek/drivers/msdc/mt_msdc.c
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2022, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+#include <mt_msdc.h>
+#include <platform_def.h>
+
+uint64_t msdc_smc_dispatcher(uint64_t arg0, uint64_t arg1,
+			     uint64_t arg2, uint64_t arg3)
+{
+	INFO("[%s] msdc setup call from kernel\n", __func__);
+	mmio_setbits_32(MSDC0_BASE + MSDC_CQHCI_CFG, MSDC_CQHCI_CRYPTO_ENABLE);
+
+	return 0L;
+}
diff --git a/plat/mediatek/drivers/msdc/mt_msdc.h b/plat/mediatek/drivers/msdc/mt_msdc.h
new file mode 100644
index 0000000..1c500c2
--- /dev/null
+++ b/plat/mediatek/drivers/msdc/mt_msdc.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2022, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_MSDC_H
+#define MT_MSDC_H
+
+#include <mt_msdc_priv.h>
+
+uint64_t msdc_smc_dispatcher(uint64_t arg0, uint64_t arg1,
+			     uint64_t arg2, uint64_t arg3);
+
+#endif