dt-bindings: mediatek: Add binding for mt2712 IOMMU and SMI

This patch adds decriptions for mt2712 IOMMU and SMI.

In order to balance the bandwidth, mt2712 has two M4Us, two
smi-commons, 10 smi-larbs. and mt2712 is also MTK IOMMU gen2 which
uses ARM Short-Descriptor translation table format.

The mt2712 M4U-SMI HW diagram is as below:

                            EMI
                             |
              ------------------------------------
              |                                  |
             M4U0                              M4U1
              |                                  |
         smi-common0                        smi-common1
              |                                  |
  -------------------------       --------------------------------
  |     |     |     |     |       |         |        |     |     |
  |     |     |     |     |       |         |        |     |     |
larb0 larb1 larb2 larb3 larb6    larb4    larb5    larb7 larb8 larb9
disp0 vdec  cam   venc   jpg  mdp1/disp1 mdp2/disp2 mdp3 vdo/nr tvd

All the connections are HW fixed, SW can NOT adjust it.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

1 files changed, 95 insertions, 0 deletions

diff --git a/include/dt-bindings/memory/mt2712-larb-port.h b/include/dt-bindings/memory/mt2712-larb-port.h
new file mode 100644
index 000000000000..6f9aa7349cef
--- /dev/null
+++ b/include/dt-bindings/memory/mt2712-larb-port.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Yong Wu <yong.wu@mediatek.com>
+ */
+#ifndef __DTS_IOMMU_PORT_MT2712_H
+#define __DTS_IOMMU_PORT_MT2712_H
+
+#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
+
+#define M4U_LARB0_ID			0
+#define M4U_LARB1_ID			1
+#define M4U_LARB2_ID			2
+#define M4U_LARB3_ID			3
+#define M4U_LARB4_ID			4
+#define M4U_LARB5_ID			5
+#define M4U_LARB6_ID			6
+#define M4U_LARB7_ID			7
+#define M4U_LARB8_ID			8
+#define M4U_LARB9_ID			9
+
+/* larb0 */
+#define M4U_PORT_DISP_OVL0		MTK_M4U_ID(M4U_LARB0_ID, 0)
+#define M4U_PORT_DISP_RDMA0		MTK_M4U_ID(M4U_LARB0_ID, 1)
+#define M4U_PORT_DISP_WDMA0		MTK_M4U_ID(M4U_LARB0_ID, 2)
+#define M4U_PORT_DISP_OD_R		MTK_M4U_ID(M4U_LARB0_ID, 3)
+#define M4U_PORT_DISP_OD_W		MTK_M4U_ID(M4U_LARB0_ID, 4)
+#define M4U_PORT_MDP_RDMA0		MTK_M4U_ID(M4U_LARB0_ID, 5)
+#define M4U_PORT_MDP_WDMA		MTK_M4U_ID(M4U_LARB0_ID, 6)
+#define M4U_PORT_DISP_RDMA2		MTK_M4U_ID(M4U_LARB0_ID, 7)
+
+/* larb1 */
+#define M4U_PORT_HW_VDEC_MC_EXT		MTK_M4U_ID(M4U_LARB1_ID, 0)
+#define M4U_PORT_HW_VDEC_PP_EXT		MTK_M4U_ID(M4U_LARB1_ID, 1)
+#define M4U_PORT_HW_VDEC_UFO_EXT	MTK_M4U_ID(M4U_LARB1_ID, 2)
+#define M4U_PORT_HW_VDEC_VLD_EXT	MTK_M4U_ID(M4U_LARB1_ID, 3)
+#define M4U_PORT_HW_VDEC_VLD2_EXT	MTK_M4U_ID(M4U_LARB1_ID, 4)
+#define M4U_PORT_HW_VDEC_AVC_MV_EXT	MTK_M4U_ID(M4U_LARB1_ID, 5)
+#define M4U_PORT_HW_VDEC_PRED_RD_EXT	MTK_M4U_ID(M4U_LARB1_ID, 6)
+#define M4U_PORT_HW_VDEC_PRED_WR_EXT	MTK_M4U_ID(M4U_LARB1_ID, 7)
+#define M4U_PORT_HW_VDEC_PPWRAP_EXT	MTK_M4U_ID(M4U_LARB1_ID, 8)
+#define M4U_PORT_HW_VDEC_TILE		MTK_M4U_ID(M4U_LARB1_ID, 9)
+#define M4U_PORT_HW_IMG_RESZ_EXT	MTK_M4U_ID(M4U_LARB1_ID, 10)
+
+/* larb2 */
+#define M4U_PORT_CAM_DMA0		MTK_M4U_ID(M4U_LARB2_ID, 0)
+#define M4U_PORT_CAM_DMA1		MTK_M4U_ID(M4U_LARB2_ID, 1)
+#define M4U_PORT_CAM_DMA2		MTK_M4U_ID(M4U_LARB2_ID, 2)
+
+/* larb3 */
+#define M4U_PORT_VENC_RCPU		MTK_M4U_ID(M4U_LARB3_ID, 0)
+#define M4U_PORT_VENC_REC		MTK_M4U_ID(M4U_LARB3_ID, 1)
+#define M4U_PORT_VENC_BSDMA		MTK_M4U_ID(M4U_LARB3_ID, 2)
+#define M4U_PORT_VENC_SV_COMV		MTK_M4U_ID(M4U_LARB3_ID, 3)
+#define M4U_PORT_VENC_RD_COMV		MTK_M4U_ID(M4U_LARB3_ID, 4)
+#define M4U_PORT_VENC_CUR_CHROMA	MTK_M4U_ID(M4U_LARB3_ID, 5)
+#define M4U_PORT_VENC_REF_CHROMA	MTK_M4U_ID(M4U_LARB3_ID, 6)
+#define M4U_PORT_VENC_CUR_LUMA		MTK_M4U_ID(M4U_LARB3_ID, 7)
+#define M4U_PORT_VENC_REF_LUMA		MTK_M4U_ID(M4U_LARB3_ID, 8)
+
+/* larb4 */
+#define M4U_PORT_DISP_OVL1		MTK_M4U_ID(M4U_LARB4_ID, 0)
+#define M4U_PORT_DISP_RDMA1		MTK_M4U_ID(M4U_LARB4_ID, 1)
+#define M4U_PORT_DISP_WDMA1		MTK_M4U_ID(M4U_LARB4_ID, 2)
+#define M4U_PORT_DISP_OD1_R		MTK_M4U_ID(M4U_LARB4_ID, 3)
+#define M4U_PORT_DISP_OD1_W		MTK_M4U_ID(M4U_LARB4_ID, 4)
+#define M4U_PORT_MDP_RDMA1		MTK_M4U_ID(M4U_LARB4_ID, 5)
+#define M4U_PORT_MDP_WROT1		MTK_M4U_ID(M4U_LARB4_ID, 6)
+
+/* larb5 */
+#define M4U_PORT_DISP_OVL2		MTK_M4U_ID(M4U_LARB5_ID, 0)
+#define M4U_PORT_DISP_WDMA2		MTK_M4U_ID(M4U_LARB5_ID, 1)
+#define M4U_PORT_MDP_RDMA2		MTK_M4U_ID(M4U_LARB5_ID, 2)
+#define M4U_PORT_MDP_WROT0		MTK_M4U_ID(M4U_LARB5_ID, 3)
+
+/* larb6 */
+#define M4U_PORT_JPGDEC_WDMA_0		MTK_M4U_ID(M4U_LARB6_ID, 0)
+#define M4U_PORT_JPGDEC_WDMA_1		MTK_M4U_ID(M4U_LARB6_ID, 1)
+#define M4U_PORT_JPGDEC_BSDMA_0		MTK_M4U_ID(M4U_LARB6_ID, 2)
+#define M4U_PORT_JPGDEC_BSDMA_1		MTK_M4U_ID(M4U_LARB6_ID, 3)
+
+/* larb7 */
+#define M4U_PORT_MDP_RDMA3		MTK_M4U_ID(M4U_LARB7_ID, 0)
+#define M4U_PORT_MDP_WROT2		MTK_M4U_ID(M4U_LARB7_ID, 1)
+
+/* larb8 */
+#define M4U_PORT_VDO			MTK_M4U_ID(M4U_LARB8_ID, 0)
+#define M4U_PORT_NR			MTK_M4U_ID(M4U_LARB8_ID, 1)
+#define M4U_PORT_WR_CHANNEL0		MTK_M4U_ID(M4U_LARB8_ID, 2)
+
+/* larb9 */
+#define M4U_PORT_TVD			MTK_M4U_ID(M4U_LARB9_ID, 0)
+#define M4U_PORT_WR_CHANNEL1		MTK_M4U_ID(M4U_LARB9_ID, 1)
+
+#endif