This patch updates the exynos-dw-mshc.txt.Currently we are using "pinctrl" binding property to describe the CMD and DATA line's of Mobile Storage Host Controller(mshc) node.
Compatibility string is added in the driver with the patch. [1] mmc: dw_mmc: exynos: configure SMU in exynos5420. DT nodes has been added in separate patch. [2] ARM: dts: Add dwmmc DT nodes for exynos5420 SOC Signed-off-by: Yuvaraj Kumar C D <[email protected]> --- .../devicetree/bindings/mmc/exynos-dw-mshc.txt | 39 +++++++++++--------- 1 file changed, 21 insertions(+), 18 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt index 84cd56f..0e1d4d9 100644 --- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt +++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt @@ -7,9 +7,9 @@ differences between the core Synopsis dw mshc controller properties described by synopsis-dw-mshc.txt and the properties used by the Samsung Exynos specific extensions to the Synopsis Designware Mobile Storage Host Controller. -Required Properties: +Required SoC Specific Properties: -* compatible: should be +* compatible: should be one of the following - "samsung,exynos4210-dw-mshc": for controllers with Samsung Exynos4210 specific extensions. - "samsung,exynos4412-dw-mshc": for controllers with Samsung Exynos4412 @@ -17,7 +17,12 @@ Required Properties: - "samsung,exynos5250-dw-mshc": for controllers with Samsung Exynos5250 specific extensions. - "samsung,exynos5420-dw-mshc": for controllers with Samsung Exynos5420 - specific extensions. + specific extensions which does not have SMU(Security Management Unit). + - "samsung,exynos5420-dw-mshc-smu": for controllers with Samsung + Exynos5420 specific extensions which has SMU(Security Management + Unit). + +Required Board Specific Properties: * samsung,dw-mshc-ciu-div: Specifies the divider value for the card interface unit (ciu) clock. This property is applicable only for Exynos5 SoC's and @@ -46,44 +51,42 @@ Required Properties: - if CIU clock divider value is 0 (that is divide by 1), both tx and rx phase shift clocks should be 0. -Required properties for a slot: - -* gpios: specifies a list of gpios used for command, clock and data bus. The - first gpio is the command line and the second gpio is the clock line. The - rest of the gpios (depending on the bus-width property) are the data lines in - no particular order. The format of the gpio specifier depends on the gpio - controller. +* pinctrl-0: Should specify pin control groups used for this controller. +* pinctrl-names: Should contain only one value - "default". +Required properties for a slot: + Refer synopsis-dw-mshc.txt Example: The MSHC controller node can be split into two portions, SoC specific and board specific portions as listed below. - dwmmc0@12200000 { + mshc@12200000 { compatible = "samsung,exynos5250-dw-mshc"; reg = <0x12200000 0x1000>; interrupts = <0 75 0>; #address-cells = <1>; #size-cells = <0>; + clocks = <&clock 351>, <&clock 132>; + clock-names = "biu", "ciu"; + fifo-depth = <0x80>; + status = "disabled"; }; - dwmmc0@12200000 { + mshc@12200000 { + status = "okay"; num-slots = <1>; supports-highspeed; broken-cd; - fifo-depth = <0x80>; card-detect-delay = <200>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <2 3>; samsung,dw-mshc-ddr-timing = <1 2>; + pinctrl-names = "default"; + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>; slot@0 { reg = <0>; bus-width = <8>; - gpios = <&gpc0 0 2 0 3>, <&gpc0 1 2 0 3>, - <&gpc1 0 2 3 3>, <&gpc1 1 2 3 3>, - <&gpc1 2 2 3 3>, <&gpc1 3 2 3 3>, - <&gpc0 3 2 3 3>, <&gpc0 4 2 3 3>, - <&gpc0 5 2 3 3>, <&gpc0 6 2 3 3>; }; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
