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-rw-r--r--dts/include/dt-bindings/memory/mtk-memory-port.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/dts/include/dt-bindings/memory/mtk-memory-port.h b/dts/include/dt-bindings/memory/mtk-memory-port.h
new file mode 100644
index 0000000000..7d64103209
--- /dev/null
+++ b/dts/include/dt-bindings/memory/mtk-memory-port.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020 MediaTek Inc.
+ * Author: Yong Wu <yong.wu@mediatek.com>
+ */
+#ifndef __DT_BINDINGS_MEMORY_MTK_MEMORY_PORT_H_
+#define __DT_BINDINGS_MEMORY_MTK_MEMORY_PORT_H_
+
+#define MTK_LARB_NR_MAX 32
+
+#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port))
+#define MTK_M4U_TO_LARB(id) (((id) >> 5) & 0x1f)
+#define MTK_M4U_TO_PORT(id) ((id) & 0x1f)
+
+#endif