diff options
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/atmel-hsmci.txt')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/atmel-hsmci.txt | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/Documentation/devicetree/bindings/mmc/atmel-hsmci.txt b/Documentation/devicetree/bindings/mmc/atmel-hsmci.txt deleted file mode 100644 index 07ad02075a93..000000000000 --- a/Documentation/devicetree/bindings/mmc/atmel-hsmci.txt +++ /dev/null @@ -1,73 +0,0 @@ -* Atmel High Speed MultiMedia Card Interface - -This controller on atmel products provides an interface for MMC, SD and SDIO -types of memory cards. - -This file documents differences between the core properties described -by mmc.txt and the properties used by the atmel-mci driver. - -1) MCI node - -Required properties: -- compatible: should be "atmel,hsmci" -- #address-cells: should be one. The cell is the slot id. -- #size-cells: should be zero. -- at least one slot node -- clock-names: tuple listing input clock names. - Required elements: "mci_clk" -- clocks: phandles to input clocks. - -The node contains child nodes for each slot that the platform uses - -Example MCI node: - -mmc0: mmc@f0008000 { - compatible = "atmel,hsmci"; - reg = <0xf0008000 0x600>; - interrupts = <12 4>; - #address-cells = <1>; - #size-cells = <0>; - clock-names = "mci_clk"; - clocks = <&mci0_clk>; - - [ child node definitions...] -}; - -2) slot nodes - -Required properties: -- reg: should contain the slot id. -- bus-width: number of data lines connected to the controller - -Optional properties: -- cd-gpios: specify GPIOs for card detection -- cd-inverted: invert the value of external card detect gpio line -- wp-gpios: specify GPIOs for write protection - -Example slot node: - -slot@0 { - reg = <0>; - bus-width = <4>; - cd-gpios = <&pioD 15 0> - cd-inverted; -}; - -Example full MCI node: -mmc0: mmc@f0008000 { - compatible = "atmel,hsmci"; - reg = <0xf0008000 0x600>; - interrupts = <12 4>; - #address-cells = <1>; - #size-cells = <0>; - slot@0 { - reg = <0>; - bus-width = <4>; - cd-gpios = <&pioD 15 0> - cd-inverted; - }; - slot@1 { - reg = <1>; - bus-width = <4>; - }; -}; |