From mboxrd@z Thu Jan 1 00:00:00 1970 From: Franklin S Cooper Jr Subject: [PATCH v2 5/5] ARM: OMAP2+: Update GPMC and NAND DT binding documentation Date: Thu, 15 Oct 2015 12:37:28 -0500 Message-ID: <1444930648-19313-6-git-send-email-fcooper@ti.com> References: <1444930648-19313-1-git-send-email-fcooper@ti.com> Return-path: In-Reply-To: <1444930648-19313-1-git-send-email-fcooper@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, rogerq@ti.com, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-mtd@lists.infradead.org, nsekhar@ti.com, computersforpeace@gmail.com, dwmw2@infradead.org, tony@atomide.com Cc: Franklin S Cooper Jr List-Id: devicetree@vger.kernel.org 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 --- 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