From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawn.lin@rock-chips.com (Shawn Lin) Date: Fri, 14 Aug 2015 16:34:55 +0800 Subject: [RFC PATCH v5 2/9] Documentation: synopsys-dw-mshc: add bindings for idmac and edmac In-Reply-To: <1439541232-30100-1-git-send-email-shawn.lin@rock-chips.com> References: <1439541232-30100-1-git-send-email-shawn.lin@rock-chips.com> Message-ID: <1439541295-30189-1-git-send-email-shawn.lin@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org synopsys-dw-mshc supports three types of transfer mode. We add bindings and description for how to use them at runtime. Signed-off-by: Shawn Lin --- Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None .../devicetree/bindings/mmc/synopsys-dw-mshc.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt index 346c609..8636f5a 100644 --- a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt +++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt @@ -75,6 +75,12 @@ Optional properties: * vmmc-supply: The phandle to the regulator to use for vmmc. If this is specified we'll defer probe until we can find this regulator. +* dmas: List of DMA specifiers with the controller specific format as described + in the generic DMA client binding. Refer to dma.txt for details. + +* dma-names: request names for generic DMA client binding. Must be "rx-tx". + Refer to dma.txt for details. + Aliases: - All the MSHC controller nodes should be represented in the aliases node using @@ -95,6 +101,23 @@ board specific portions as listed below. #size-cells = <0>; }; +[board specific internal DMA resources] + + dwmmc0 at 12200000 { + clock-frequency = <400000000>; + clock-freq-min-max = <400000 200000000>; + num-slots = <1>; + broken-cd; + fifo-depth = <0x80>; + card-detect-delay = <200>; + vmmc-supply = <&buck8>; + bus-width = <8>; + cap-mmc-highspeed; + cap-sd-highspeed; + }; + +[board specific generic DMA request binding] + dwmmc0 at 12200000 { clock-frequency = <400000000>; clock-freq-min-max = <400000 200000000>; @@ -106,4 +129,6 @@ board specific portions as listed below. bus-width = <8>; cap-mmc-highspeed; cap-sd-highspeed; + dmas = <&pdma 12>; + dma-names = "rx-tx"; }; -- 2.3.7