dt-bindings: memory: mediatek: Add a common memory header file

Put all the macros about smi larb/port togethers.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20210111111914.22211-3-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>

include/dt-bindings/memory/mt2712-larb-port.h

@@ -6,7 +6,7 @@
 #ifndef __DTS_IOMMU_PORT_MT2712_H
 #define __DTS_IOMMU_PORT_MT2712_H
 
-#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
 
 #define M4U_LARB0_ID			0
 #define M4U_LARB1_ID			1

include/dt-bindings/memory/mt6779-larb-port.h

@@ -7,7 +7,7 @@
 #ifndef _DTS_IOMMU_PORT_MT6779_H_
 #define _DTS_IOMMU_PORT_MT6779_H_
 
-#define MTK_M4U_ID(larb, port)		 (((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
 
 #define M4U_LARB0_ID			 0
 #define M4U_LARB1_ID			 1

include/dt-bindings/memory/mt8167-larb-port.h

@@ -8,7 +8,7 @@
 #ifndef __DTS_IOMMU_PORT_MT8167_H
 #define __DTS_IOMMU_PORT_MT8167_H
 
-#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
 
 #define M4U_LARB0_ID			0
 #define M4U_LARB1_ID			1

include/dt-bindings/memory/mt8173-larb-port.h

@@ -6,7 +6,7 @@
 #ifndef __DTS_IOMMU_PORT_MT8173_H
 #define __DTS_IOMMU_PORT_MT8173_H
 
-#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
 
 #define M4U_LARB0_ID			0
 #define M4U_LARB1_ID			1

include/dt-bindings/memory/mt8183-larb-port.h

@@ -6,7 +6,7 @@
 #ifndef __DTS_IOMMU_PORT_MT8183_H
 #define __DTS_IOMMU_PORT_MT8183_H
 
-#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
 
 #define M4U_LARB0_ID			0
 #define M4U_LARB1_ID			1

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			16
+
+#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
+#define MTK_M4U_TO_LARB(id)		(((id) >> 5) & 0xf)
+#define MTK_M4U_TO_PORT(id)		((id) & 0x1f)
+
+#endif