1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
From c5a10c542853662bf85884aecee1c086ecec9acf Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@freescale.com>
Date: Mon, 5 Jun 2017 11:37:57 +0800
Subject: [PATCH] MLK-15003-2: Document: fsl_edma_v3: update document
update fsl_edma_v3 document for #dma-cell is changed
one more cell is added, which is for local/remote access.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
(cherry picked from commit 65543fb7fefbdb7df4cb60931a88f61507c5073f)
---
Documentation/devicetree/bindings/dma/fsl-edma-v3.txt | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
--- a/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt
@@ -14,11 +14,13 @@ Required properties:
- interrupts : A list of interrupt-specifiers, each channel has one interrupt.
- interrupt-names : Should contain:
"edma-chan12-tx" - the channel12 transmission interrupt
-- #dma-cells : Must be <3>.
+- #dma-cells : Must be <4>.
The 1st cell specifies the channel ID.
The 2nd cell specifies the channel priority.
The 3rd cell specifies the channel type like for transmit or receive:
0: transmit, 1: receive.
+ The 4th cell specifies the local access or remote access:
+ 0: local, 1: remote.
See the SoC's reference manual for all the supported request sources.
- dma-channels : Number of channels supported by the controller
@@ -29,7 +31,7 @@ edma0: dma-controller@40018000 {
<0x0 0x5a2d0000 0x0 0x10000>, /* channel13 UART0 tx */
<0x0 0x5a2e0000 0x0 0x10000>, /* channel14 UART1 rx */
<0x0 0x5a2f0000 0x0 0x10000>; /* channel15 UART1 tx */
- #dma-cells = <3>;
+ #dma-cells = <4>;
dma-channels = <4>;
interrupts = <GIC_SPI 434 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>,
@@ -58,7 +60,7 @@ lpuart1: serial@5a070000 {
assigned-clock-rates = <80000000>;
power-domains = <&pd_dma_lpuart1>;
dma-names = "tx","rx";
- dmas = <&edma0 15 0 0>,
- <&edma0 14 0 1>;
+ dmas = <&edma0 15 0 0 0>,
+ <&edma0 14 0 1 0>;
status = "disabled";
};
|
