|
m4u (Multimedia Memory Management Unit)
|
+ +--------+
+ | |
+ gals0-rx gals1-rx (Global Async Local Sync rx)
+ | |
+ | |
+ gals0-tx gals1-tx (Global Async Local Sync tx)
+ | | Some SoCs may have GALS.
+ +--------+
+ |
SMI Common(Smart Multimedia Interface Common)
|
+----------------+-------
| |
+ | gals-rx There may be GALS in some larbs.
+ | |
+ | |
+ | gals-tx
| |
SMI larb0 SMI larb1 ... SoCs have several SMI local arbiter(larb).
(display) (vdec)
like display, video decode, and camera. And there are different ports
in each larb. Take a example, There are many ports like MC, PP, VLD in the
video decode local arbiter, all these ports are according to the video HW.
+ In some SoCs, there may be a GALS(Global Async Local Sync) module between
+smi-common and m4u, and additional GALS module between smi-larb and
+smi-common. GALS can been seen as a "asynchronous fifo" which could help
+synchronize for the modules in different clock frequency.
Required properties:
- compatible : must be one of the following string:
"mediatek,mt7623-m4u", "mediatek,mt2701-m4u" for mt7623 which uses
generation one m4u HW.
"mediatek,mt8173-m4u" for mt8173 which uses generation two m4u HW.
+ "mediatek,mt8183-m4u" for mt8183 which uses generation two m4u HW.
- reg : m4u register base and size.
- interrupts : the interrupt of m4u.
- clocks : must contain one entry for each clock-names.
-- clock-names : must be "bclk", It is the block clock of m4u.
+- clock-names : Only 1 optional clock:
+ - "bclk": the block clock of m4u.
+ Here is the list which require this "bclk":
+ - mt2701, mt2712, mt7623 and mt8173.
+ Note that m4u use the EMI clock which always has been enabled before kernel
+ if there is no this "bclk".
- mediatek,larbs : List of phandle to the local arbiters in the current Socs.
Refer to bindings/memory-controllers/mediatek,smi-larb.txt. It must sort
according to the local arbiter index, like larb0, larb1, larb2...
- iommu-cells : must be 1. This is the mtk_m4u_id according to the HW.
Specifies the mtk_m4u_id as defined in
dt-binding/memory/mt2701-larb-port.h for mt2701, mt7623
- dt-binding/memory/mt2712-larb-port.h for mt2712, and
- dt-binding/memory/mt8173-larb-port.h for mt8173.
+ dt-binding/memory/mt2712-larb-port.h for mt2712,
+ dt-binding/memory/mt8173-larb-port.h for mt8173, and
+ dt-binding/memory/mt8183-larb-port.h for mt8183.
Example:
iommu: iommu@10205000 {
The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
-Mediatek SMI have two generations of HW architecture, mt2712 and mt8173 use
-the second generation of SMI HW while mt2701 uses the first generation HW of
-SMI.
+Mediatek SMI have two generations of HW architecture, here is the list
+which generation the SoCs use:
+generation 1: mt2701 and mt7623.
+generation 2: mt2712, mt8173 and mt8183.
There's slight differences between the two SMI, for generation 2, the
register which control the iommu port is at each larb's register base. But
"mediatek,mt2712-smi-common"
"mediatek,mt7623-smi-common", "mediatek,mt2701-smi-common"
"mediatek,mt8173-smi-common"
+ "mediatek,mt8183-smi-common"
- reg : the register and size of the SMI block.
- power-domains : a phandle to the power domain of this local arbiter.
- clocks : Must contain an entry for each entry in clock-names.
They may be the same if both source clocks are the same.
- "async" : asynchronous clock, it help transform the smi clock into the emi
clock domain, this clock is only needed by generation 1 smi HW.
+ and these 2 option clocks for generation 2 smi HW:
+ - "gals0": the path0 clock of GALS(Global Async Local Sync).
+ - "gals1": the path1 clock of GALS(Global Async Local Sync).
+ Here is the list which has this GALS: mt8183.
Example:
smi_common: smi@14022000 {
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Yong Wu <yong.wu@mediatek.com>
+ */
+#ifndef __DTS_IOMMU_PORT_MT8183_H
+#define __DTS_IOMMU_PORT_MT8183_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
+
+/* larb0 */
+#define M4U_PORT_DISP_OVL0 MTK_M4U_ID(M4U_LARB0_ID, 0)
+#define M4U_PORT_DISP_2L_OVL0_LARB0 MTK_M4U_ID(M4U_LARB0_ID, 1)
+#define M4U_PORT_DISP_2L_OVL1_LARB0 MTK_M4U_ID(M4U_LARB0_ID, 2)
+#define M4U_PORT_DISP_RDMA0 MTK_M4U_ID(M4U_LARB0_ID, 3)
+#define M4U_PORT_DISP_RDMA1 MTK_M4U_ID(M4U_LARB0_ID, 4)
+#define M4U_PORT_DISP_WDMA0 MTK_M4U_ID(M4U_LARB0_ID, 5)
+#define M4U_PORT_MDP_RDMA0 MTK_M4U_ID(M4U_LARB0_ID, 6)
+#define M4U_PORT_MDP_WROT0 MTK_M4U_ID(M4U_LARB0_ID, 7)
+#define M4U_PORT_MDP_WDMA0 MTK_M4U_ID(M4U_LARB0_ID, 8)
+#define M4U_PORT_DISP_FAKE0 MTK_M4U_ID(M4U_LARB0_ID, 9)
+
+/* 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_VLD_EXT MTK_M4U_ID(M4U_LARB1_ID, 2)
+#define M4U_PORT_HW_VDEC_AVC_MV_EXT MTK_M4U_ID(M4U_LARB1_ID, 3)
+#define M4U_PORT_HW_VDEC_PRED_RD_EXT MTK_M4U_ID(M4U_LARB1_ID, 4)
+#define M4U_PORT_HW_VDEC_PRED_WR_EXT MTK_M4U_ID(M4U_LARB1_ID, 5)
+#define M4U_PORT_HW_VDEC_PPWRAP_EXT MTK_M4U_ID(M4U_LARB1_ID, 6)
+
+/* larb2 VPU0 */
+#define M4U_PORT_IMG_IPUO MTK_M4U_ID(M4U_LARB2_ID, 0)
+#define M4U_PORT_IMG_IPU3O MTK_M4U_ID(M4U_LARB2_ID, 1)
+#define M4U_PORT_IMG_IPUI MTK_M4U_ID(M4U_LARB2_ID, 2)
+
+/* larb3 VPU1 */
+#define M4U_PORT_CAM_IPUO MTK_M4U_ID(M4U_LARB3_ID, 0)
+#define M4U_PORT_CAM_IPU2O MTK_M4U_ID(M4U_LARB3_ID, 1)
+#define M4U_PORT_CAM_IPU3O MTK_M4U_ID(M4U_LARB3_ID, 2)
+#define M4U_PORT_CAM_IPUI MTK_M4U_ID(M4U_LARB3_ID, 3)
+#define M4U_PORT_CAM_IPU2I MTK_M4U_ID(M4U_LARB3_ID, 4)
+
+/* larb4 */
+#define M4U_PORT_VENC_RCPU MTK_M4U_ID(M4U_LARB4_ID, 0)
+#define M4U_PORT_VENC_REC MTK_M4U_ID(M4U_LARB4_ID, 1)
+#define M4U_PORT_VENC_BSDMA MTK_M4U_ID(M4U_LARB4_ID, 2)
+#define M4U_PORT_VENC_SV_COMV MTK_M4U_ID(M4U_LARB4_ID, 3)
+#define M4U_PORT_VENC_RD_COMV MTK_M4U_ID(M4U_LARB4_ID, 4)
+#define M4U_PORT_JPGENC_RDMA MTK_M4U_ID(M4U_LARB4_ID, 5)
+#define M4U_PORT_JPGENC_BSDMA MTK_M4U_ID(M4U_LARB4_ID, 6)
+#define M4U_PORT_VENC_CUR_LUMA MTK_M4U_ID(M4U_LARB4_ID, 7)
+#define M4U_PORT_VENC_CUR_CHROMA MTK_M4U_ID(M4U_LARB4_ID, 8)
+#define M4U_PORT_VENC_REF_LUMA MTK_M4U_ID(M4U_LARB4_ID, 9)
+#define M4U_PORT_VENC_REF_CHROMA MTK_M4U_ID(M4U_LARB4_ID, 10)
+
+/* larb5 */
+#define M4U_PORT_CAM_IMGI MTK_M4U_ID(M4U_LARB5_ID, 0)
+#define M4U_PORT_CAM_IMG2O MTK_M4U_ID(M4U_LARB5_ID, 1)
+#define M4U_PORT_CAM_IMG3O MTK_M4U_ID(M4U_LARB5_ID, 2)
+#define M4U_PORT_CAM_VIPI MTK_M4U_ID(M4U_LARB5_ID, 3)
+#define M4U_PORT_CAM_LCEI MTK_M4U_ID(M4U_LARB5_ID, 4)
+#define M4U_PORT_CAM_SMXI MTK_M4U_ID(M4U_LARB5_ID, 5)
+#define M4U_PORT_CAM_SMXO MTK_M4U_ID(M4U_LARB5_ID, 6)
+#define M4U_PORT_CAM_WPE0_RDMA1 MTK_M4U_ID(M4U_LARB5_ID, 7)
+#define M4U_PORT_CAM_WPE0_RDMA0 MTK_M4U_ID(M4U_LARB5_ID, 8)
+#define M4U_PORT_CAM_WPE0_WDMA MTK_M4U_ID(M4U_LARB5_ID, 9)
+#define M4U_PORT_CAM_FDVT_RP MTK_M4U_ID(M4U_LARB5_ID, 10)
+#define M4U_PORT_CAM_FDVT_WR MTK_M4U_ID(M4U_LARB5_ID, 11)
+#define M4U_PORT_CAM_FDVT_RB MTK_M4U_ID(M4U_LARB5_ID, 12)
+#define M4U_PORT_CAM_WPE1_RDMA0 MTK_M4U_ID(M4U_LARB5_ID, 13)
+#define M4U_PORT_CAM_WPE1_RDMA1 MTK_M4U_ID(M4U_LARB5_ID, 14)
+#define M4U_PORT_CAM_WPE1_WDMA MTK_M4U_ID(M4U_LARB5_ID, 15)
+#define M4U_PORT_CAM_DPE_RDMA MTK_M4U_ID(M4U_LARB5_ID, 16)
+#define M4U_PORT_CAM_DPE_WDMA MTK_M4U_ID(M4U_LARB5_ID, 17)
+#define M4U_PORT_CAM_MFB_RDMA0 MTK_M4U_ID(M4U_LARB5_ID, 18)
+#define M4U_PORT_CAM_MFB_RDMA1 MTK_M4U_ID(M4U_LARB5_ID, 19)
+#define M4U_PORT_CAM_MFB_WDMA MTK_M4U_ID(M4U_LARB5_ID, 20)
+#define M4U_PORT_CAM_RSC_RDMA0 MTK_M4U_ID(M4U_LARB5_ID, 21)
+#define M4U_PORT_CAM_RSC_WDMA MTK_M4U_ID(M4U_LARB5_ID, 22)
+#define M4U_PORT_CAM_OWE_RDMA MTK_M4U_ID(M4U_LARB5_ID, 23)
+#define M4U_PORT_CAM_OWE_WDMA MTK_M4U_ID(M4U_LARB5_ID, 24)
+
+/* larb6 */
+#define M4U_PORT_CAM_IMGO MTK_M4U_ID(M4U_LARB6_ID, 0)
+#define M4U_PORT_CAM_RRZO MTK_M4U_ID(M4U_LARB6_ID, 1)
+#define M4U_PORT_CAM_AAO MTK_M4U_ID(M4U_LARB6_ID, 2)
+#define M4U_PORT_CAM_AFO MTK_M4U_ID(M4U_LARB6_ID, 3)
+#define M4U_PORT_CAM_LSCI0 MTK_M4U_ID(M4U_LARB6_ID, 4)
+#define M4U_PORT_CAM_LSCI1 MTK_M4U_ID(M4U_LARB6_ID, 5)
+#define M4U_PORT_CAM_PDO MTK_M4U_ID(M4U_LARB6_ID, 6)
+#define M4U_PORT_CAM_BPCI MTK_M4U_ID(M4U_LARB6_ID, 7)
+#define M4U_PORT_CAM_LCSO MTK_M4U_ID(M4U_LARB6_ID, 8)
+#define M4U_PORT_CAM_CAM_RSSO_A MTK_M4U_ID(M4U_LARB6_ID, 9)
+#define M4U_PORT_CAM_UFEO MTK_M4U_ID(M4U_LARB6_ID, 10)
+#define M4U_PORT_CAM_SOCO MTK_M4U_ID(M4U_LARB6_ID, 11)
+#define M4U_PORT_CAM_SOC1 MTK_M4U_ID(M4U_LARB6_ID, 12)
+#define M4U_PORT_CAM_SOC2 MTK_M4U_ID(M4U_LARB6_ID, 13)
+#define M4U_PORT_CAM_CCUI MTK_M4U_ID(M4U_LARB6_ID, 14)
+#define M4U_PORT_CAM_CCUO MTK_M4U_ID(M4U_LARB6_ID, 15)
+#define M4U_PORT_CAM_RAWI_A MTK_M4U_ID(M4U_LARB6_ID, 16)
+#define M4U_PORT_CAM_CCUG MTK_M4U_ID(M4U_LARB6_ID, 17)
+#define M4U_PORT_CAM_PSO MTK_M4U_ID(M4U_LARB6_ID, 18)
+#define M4U_PORT_CAM_AFO_1 MTK_M4U_ID(M4U_LARB6_ID, 19)
+#define M4U_PORT_CAM_LSCI_2 MTK_M4U_ID(M4U_LARB6_ID, 20)
+#define M4U_PORT_CAM_PDI MTK_M4U_ID(M4U_LARB6_ID, 21)
+#define M4U_PORT_CAM_FLKO MTK_M4U_ID(M4U_LARB6_ID, 22)
+#define M4U_PORT_CAM_LMVO MTK_M4U_ID(M4U_LARB6_ID, 23)
+#define M4U_PORT_CAM_UFGO MTK_M4U_ID(M4U_LARB6_ID, 24)
+#define M4U_PORT_CAM_SPARE MTK_M4U_ID(M4U_LARB6_ID, 25)
+#define M4U_PORT_CAM_SPARE_2 MTK_M4U_ID(M4U_LARB6_ID, 26)
+#define M4U_PORT_CAM_SPARE_3 MTK_M4U_ID(M4U_LARB6_ID, 27)
+#define M4U_PORT_CAM_SPARE_4 MTK_M4U_ID(M4U_LARB6_ID, 28)
+#define M4U_PORT_CAM_SPARE_5 MTK_M4U_ID(M4U_LARB6_ID, 29)
+#define M4U_PORT_CAM_SPARE_6 MTK_M4U_ID(M4U_LARB6_ID, 30)
+
+/* CCU */
+#define M4U_PORT_CCU0 MTK_M4U_ID(M4U_LARB7_ID, 0)
+#define M4U_PORT_CCU1 MTK_M4U_ID(M4U_LARB7_ID, 1)
+
+#endif
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