~hc/RK356X_SDK_RELEASE.git

..	..	@@ -11,9 +11,16 @@
11	11	Xilinx AXI CDMA engine, it does transfers between memory-mapped source
12	12	address and a memory-mapped destination address.
13	13
	14	+Xilinx AXI MCDMA engine, it does transfer between memory and AXI4 stream
	15	+target devices. It can be configured to have up to 16 independent transmit
	16	+and receive channels.
	17	+
14	18	Required properties:
15		-- compatible: Should be "xlnx,axi-vdma-1.00.a" or "xlnx,axi-dma-1.00.a" or
16		- "xlnx,axi-cdma-1.00.a""
	19	+- compatible: Should be one of-
	20	+ "xlnx,axi-vdma-1.00.a"
	21	+ "xlnx,axi-dma-1.00.a"
	22	+ "xlnx,axi-cdma-1.00.a"
	23	+ "xlnx,axi-mcdma-1.00.a"
17	24	- #dma-cells: Should be <1>, see "dmas" property below
18	25	- reg: Should contain VDMA registers location and length.
19	26	- xlnx,addrwidth: Should be the vdma addressing size in bits(ex: 32 bits).
..	..	@@ -29,7 +36,7 @@
29	36	"m_axis_mm2s_aclk", "s_axis_s2mm_aclk"
30	37	For CDMA:
31	38	Required elements: "s_axi_lite_aclk", "m_axi_aclk"
32		- FOR AXIDMA:
	39	+ For AXIDMA and MCDMA:
33	40	Required elements: "s_axi_lite_aclk"
34	41	Optional elements: "m_axi_mm2s_aclk", "m_axi_s2mm_aclk",
35	42	"m_axi_sg_aclk"
..	..	@@ -37,11 +44,11 @@
37	44	Required properties for VDMA:
38	45	- xlnx,num-fstores: Should be the number of framebuffers as configured in h/w.
39	46
40		-Optional properties:
41		-- xlnx,include-sg: Tells configured for Scatter-mode in
42		- the hardware.
43		-Optional properties for AXI DMA:
44		-- xlnx,mcdma: Tells whether configured for multi-channel mode in the hardware.
	47	+Optional properties for AXI DMA and MCDMA:
	48	+- xlnx,sg-length-width: Should be set to the width in bits of the length
	49	+ register as configured in h/w. Takes values {8...26}. If the property
	50	+ is missing or invalid then the default value 23 is used. This is the
	51	+ maximum value that is supported by all IP versions.
45	52	Optional properties for VDMA:
46	53	- xlnx,flush-fsync: Tells which channel to Flush on Frame sync.
47	54	It takes following values:
..	..	@@ -54,8 +61,8 @@
54	61	For VDMA: It should be either "xlnx,axi-vdma-mm2s-channel" or
55	62	"xlnx,axi-vdma-s2mm-channel".
56	63	For CDMA: It should be "xlnx,axi-cdma-channel".
57		- For AXIDMA: It should be either "xlnx,axi-dma-mm2s-channel" or
58		- "xlnx,axi-dma-s2mm-channel".
	64	+ For AXIDMA and MCDMA: It should be either "xlnx,axi-dma-mm2s-channel"
	65	+ or "xlnx,axi-dma-s2mm-channel".
59	66	- interrupts: Should contain per channel VDMA interrupts.
60	67	- xlnx,datawidth: Should contain the stream data width, take values
61	68	{32,64...1024}.
..	..	@@ -68,8 +75,8 @@
68	75	enabled/disabled in hardware.
69	76	- xlnx,enable-vert-flip: Tells vertical flip is
70	77	enabled/disabled in hardware(S2MM path).
71		-Optional child node properties for AXI DMA:
72		--dma-channels: Number of dma channels in child node.
	78	+Optional child node properties for MCDMA:
	79	+- dma-channels: Number of dma channels in child node.
73	80
74	81	Example:
75	82	++++++++