[PATCH v4 7/7] ARM: OMAP2+: Update GPMC and NAND DT binding documentation
From: Franklin S Cooper Jr <hidden>
Date: 2016-03-10 23:57:48
Also in:
linux-omap, lkml
Subsystem:
memory technology devices (mtd), open firmware and flattened device tree bindings, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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 <redacted> --- Documentation/devicetree/bindings/bus/ti-gpmc.txt | 7 ++++++- Documentation/devicetree/bindings/mtd/gpmc-nand.txt | 2 +- 2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/bus/ti-gpmc.txt b/Documentation/devicetree/bindings/bus/ti-gpmc.txt
index 704be93..ae6388a 100644
--- a/Documentation/devicetree/bindings/bus/ti-gpmc.txt
+++ b/Documentation/devicetree/bindings/bus/ti-gpmc.txt@@ -33,6 +33,10 @@ Required properties: As this will change in the future, filling correct values here is a requirement. +Required properties when using NAND prefetch dma: + - 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 0>; + 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 fb733c4..7cb9dc56 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt@@ -35,7 +35,7 @@ Optional properties: "prefetch-polled" Prefetch polled mode (default) "polled" Polled mode, without prefetch - "prefetch-dma" Prefetch enabled sDMA mode + "prefetch-dma" Prefetch enabled DMA mode "prefetch-irq" Prefetch enabled irq mode - elm_id: <deprecated> use "ti,elm-id" instead
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2.7.0