From mboxrd@z Thu Jan 1 00:00:00 1970 From: Faiz Abbas Subject: [PATCH 1/6] dt-bindings: phy: am654-mmc-phy: Document new phy bindings Date: Thu, 4 Oct 2018 16:44:46 +0530 Message-ID: <20181004111451.9539-2-faiz_abbas@ti.com> References: <20181004111451.9539-1-faiz_abbas@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20181004111451.9539-1-faiz_abbas@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mmc@vger.kernel.org Cc: kishon@ti.com, faiz_abbas@ti.com, ulf.hansson@linaro.org, robh+dt@kernel.org, catalin.marinas@arm.com, adrian.hunter@intel.com List-Id: devicetree@vger.kernel.org Add information to document bindings for the MMC PHY on TI's AM654 devices. Signed-off-by: Faiz Abbas Signed-off-by: Sekhar Nori --- .../devicetree/bindings/phy/am654-mmc-phy.txt | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/am654-mmc-phy.txt diff --git a/Documentation/devicetree/bindings/phy/am654-mmc-phy.txt b/Documentation/devicetree/bindings/phy/am654-mmc-phy.txt new file mode 100644 index 000000000000..766921612758 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/am654-mmc-phy.txt @@ -0,0 +1,42 @@ +TI AM654 MMC PHY +------------------- + +Required properties: + - compatible: ti,am654-emmc-phy + - #phy-cells: must be 0 + - reg: PHY registers address offset and size + - clocks: must be phandle of the clock provider which is the host + controller + - clock-names: must be "mmcclk" + - 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: + mmc_phy1: mmc_phy@10100 { + compatible = "ti,am654-mmc-phy"; + reg = <0x10100 0x34>; + clocks = <&sdhci1>; + clock-names = "mmcclk"; + #phy-cells = <0>; + ti,otap-del-sel = <0x2>; + ti,trm-icp = <0x8>; + status = "disabled"; + }; + +Host controller node: + + sdhci1: sdhci@0 { + compatible = "ti,am654-sdhci-5.1"; + reg = <0x0 0x1000>; + power-domains = <&k3_pds 48>; + clocks = <&k3_clks 48 0>, <&k3_clks 48 1>; + clock-names = "clk_ahb", "clk_xin"; + interrupts = ; + clock-output-names = "mmc_cardclck"; + #clock-cells = <0>; + phys=<&mmc_phy1>; + phy-names = "phy_arasan"; + status = "disabled"; + }; -- 2.18.0