[PATCH v2 5/5] ARM: OMAP2+: Update GPMC and NAND DT binding documentation

From: Franklin S Cooper Jr
Date: Thu Oct 15 2015 - 13:37:47 EST


Add additional details to the GPMC NAND documentation to clarify
what is needed to enable NAND DMA prefetch.

Signed-off-by: Franklin S Cooper Jr <fcooper@xxxxxx>
---
V2 Changes:
Replace nand and Nand with NAND
Specify the value dma-names should be set to

Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt | 7 ++++++-
Documentation/devicetree/bindings/mtd/gpmc-nand.txt | 2 ++
2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
index 704be93..afae4b3 100644
--- a/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
@@ -33,6 +33,10 @@ Required properties:
As this will change in the future, filling correct
values here is a requirement.

+GPMC DMA information.
+ - dmas GPMC NAND prefetch dma channel
+ - dma-names Must be set to "rxtx"
+
Timing properties for child nodes. All are optional and default to 0.

- gpmc,sync-clk-ps: Minimum clock period for synchronous mode, in picoseconds
@@ -119,7 +123,8 @@ Example for an AM33xx board:
ti,hwmods = "gpmc";
reg = <0x50000000 0x2000>;
interrupts = <100>;
-
+ dmas = <&edma 52>;
+ dma-names = "rxtx";
gpmc,num-cs = <8>;
gpmc,num-waitpins = <2>;
#address-cells = <2>;
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index 253e6de..4b0c240 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -61,6 +61,8 @@ Example for an AM33xx board:
ti,hwmods = "gpmc";
reg = <0x50000000 0x36c>;
interrupts = <100>;
+ dmas = <&edma 52>;
+ dma-names = "rxtx";
gpmc,num-cs = <8>;
gpmc,num-waitpins = <2>;
#address-cells = <2>;
--
2.6.1

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