Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxx>
---
.../devicetree/bindings/mmc/amlogic,meson-gx.txt | 33 ++++++++++++++++++++++
1 file changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt
diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt
new file mode 100644
index 000000000000..a2fa9a1c26ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt
@@ -0,0 +1,33 @@
+Amlogic SD / eMMC controller for S905/GXBB family SoCs
+
+The MMC 5.1 compliant host controller on Amlogic provides the
+interface for SD, eMMC and SDIO devices.
+
+This file documents the properties in addition to those available in
+the MMC core bindings, documented by mmc.txt.
+
+Required properties:
+- compatible : contains one of:
+ - "amlogic,meson-gx-mmc"
+ - "amlogic,meson-gxbb-mmc"
+ - "amlogic,meson-gxl-mmc"
+ - "amlogic,meson-gxm-mmc"
+- clocks : A list of phandle + clock-specifier pairs for the clocks listed in clock-names.
+- clock-names: Should contain the following:
+ "core" - Main peripheral bus clock
+ "clkin0" - Parent clock of internal mux
+ "clkin1" - Other parent clock of internal mux
+ The driver has an interal mux clock which switches between clkin0 and clkin1 depending on the
+ clock rate requested by the MMC core.
+
+Example:
+
+ sd_emmc_a: mmc@70000 {
+ compatible = "amlogic,meson-gxbb-mmc";
+ reg = <0x0 0x70000 0x0 0x2000>;
+ interrupts = < GIC_SPI 216 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_SD_EMMC_A>, <&xtal>, <&clkc CLKID_FCLK_DIV2>;
+ clock-names = "core", "clkin0", "clkin1";
+ pinctrl-0 = <&emmc_pins>;
+ };
+
--
2.9.3
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