diff --git a/plat/mediatek/common/cache_ops.c b/plat/mediatek/common/cache_ops.c
new file mode 100644
index 0000000..df43667
--- /dev/null
+++ b/plat/mediatek/common/cache_ops.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2025, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <lib/mmio.h>
+
+#include <cache_ops.h>
+#include <mcucfg.h>
+
+#define L3_SHARE_EN	9
+#define L3_SHARE_PRE_EN	8
+
+void disable_cache_as_ram(void)
+{
+	unsigned long v;
+
+	mmio_clrbits_32(MP0_CLUSTER_CFG0, 1 << L3_SHARE_EN);
+	dsb();
+
+	__asm__ volatile ("mrs %0, S3_0_C15_C3_5" : "=r" (v));
+	v |= (0xf << 4);
+	__asm__ volatile ("msr S3_0_C15_C3_5, %0" : : "r" (v));
+	dsb();
+
+	do {
+		__asm__ volatile ("mrs %0, S3_0_C15_C3_7" : "=r" (v));
+	} while (((v >> 0x4) & 0xf) != 0xf);
+
+	mmio_clrbits_32(MP0_CLUSTER_CFG0, 1 << L3_SHARE_PRE_EN);
+	dsb();
+}