diff options
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/arasan,sdhci.txt | 27 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt | 46 |
2 files changed, 73 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt new file mode 100644 index 000000000000..98ee2abbe138 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt @@ -0,0 +1,27 @@ +Device Tree Bindings for the Arasan SDHCI Controller + + 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: Compatibility string. Must be 'arasan,sdhci-8.9a' + - reg: From mmc bindings: Register location and length. + - clocks: From clock bindings: Handles to clock inputs. + - clock-names: From clock bindings: Tuple including "clk_xin" and "clk_ahb" + - interrupts: Interrupt specifier + - interrupt-parent: Phandle for the interrupt controller that services + interrupts for this device. + +Example: + sdhci@e0100000 { + compatible = "arasan,sdhci-8.9a"; + reg = <0xe0100000 0x1000>; + clock-names = "clk_xin", "clk_ahb"; + clocks = <&clkc 21>, <&clkc 32>; + interrupt-parent = <&gic>; + interrupts = <0 24 4>; + } ; diff --git a/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt new file mode 100644 index 000000000000..b8653ea97957 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt @@ -0,0 +1,46 @@ +* Hisilicon specific extensions to the Synopsys Designware Mobile + Storage Host Controller + +Read synopsys-dw-mshc.txt for more details + +The Synopsys designware mobile storage host controller is used to interface +a SoC with storage medium such as eMMC or SD/MMC cards. This file documents +differences between the core Synopsys dw mshc controller properties described +by synopsys-dw-mshc.txt and the properties used by the Hisilicon specific +extensions to the Synopsys Designware Mobile Storage Host Controller. + +Required Properties: + +* compatible: should be one of the following. + - "hisilicon,hi4511-dw-mshc": for controllers with hi4511 specific extentions. + +Example: + + /* for Hi3620 */ + + /* SoC portion */ + dwmmc_0: dwmmc0@fcd03000 { + compatible = "hisilicon,hi4511-dw-mshc"; + reg = <0xfcd03000 0x1000>; + interrupts = <0 16 4>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&mmc_clock HI3620_SD_CIUCLK>, <&clock HI3620_DDRC_PER_CLK>; + clock-names = "ciu", "biu"; + }; + + /* Board portion */ + dwmmc0@fcd03000 { + num-slots = <1>; + vmmc-supply = <&ldo12>; + fifo-depth = <0x100>; + supports-highspeed; + pinctrl-names = "default"; + pinctrl-0 = <&sd_pmx_pins &sd_cfg_func1 &sd_cfg_func2>; + slot@0 { + reg = <0>; + bus-width = <4>; + disable-wp; + cd-gpios = <&gpio10 3 0>; + }; + }; |