From f98b4f98bbc823d2f376f2c6c33d21bde20423cf Mon Sep 17 00:00:00 2001 From: Faiz Abbas Date: Tue, 11 Dec 2018 00:05:05 +0530 Subject: dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's AM654 SOCs Add binding documentation for mmc host controllers present on TI's AM654 SOCs. Signed-off-by: Faiz Abbas Signed-off-by: Ulf Hansson --- .../devicetree/bindings/mmc/sdhci-am654.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-am654.txt (limited to 'Documentation/devicetree/bindings') diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.txt b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt new file mode 100644 index 000000000000..15dbbbace27e --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt @@ -0,0 +1,36 @@ +Device Tree Bindings for the SDHCI Controllers present on TI's AM654 SOCs + +The bindings follow the mmc[1], clock[2] and interrupt[3] bindings. +Only deviations are documented here. + + [1] Documentation/devicetree/bindings/mmc/mmc.txt + [2] Documentation/devicetree/bindings/clock/clock-bindings.txt + [3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + +Required Properties: + - compatible: should be "ti,am654-sdhci-5.1" + - reg: Must be two entries. + - The first should be the sdhci register space + - The second should the subsystem/phy register space + - clocks: Handles to the clock inputs. + - clock-names: Tuple including "clk_xin" and "clk_ahb" + - interrupts: Interrupt specifiers + - ti,otap-del-sel: Output Tap Delay select + - ti,trm-icp: DLL trim select + - ti,driver-strength-ohm: driver strength in ohms. + Valid values are 33, 40, 50, 66 and 100 ohms. + +Example: + + sdhci0: sdhci@4f80000 { + compatible = "ti,am654-sdhci-5.1"; + reg = <0x0 0x4f80000 0x0 0x260>, <0x0 0x4f90000 0x0 0x134>; + power-domains = <&k3_pds 47>; + clocks = <&k3_clks 47 0>, <&k3_clks 47 1>; + clock-names = "clk_ahb", "clk_xin"; + interrupts = ; + sdhci-caps-mask = <0x80000007 0x0>; + mmc-ddr-1_8v; + ti,otap-del-sel = <0x2>; + ti,trm-icp = <0x8>; + }; -- cgit v1.2.3-59-g8ed1b