diff options
Diffstat (limited to 'Documentation/devicetree/bindings/mtd/sunxi-nand.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/sunxi-nand.txt | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt new file mode 100644 index 000000000..dcd5a5d80 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt @@ -0,0 +1,48 @@ +Allwinner NAND Flash Controller (NFC) + +Required properties: +- compatible : "allwinner,sun4i-a10-nand". +- reg : shall contain registers location and length for data and reg. +- interrupts : shall define the nand controller interrupt. +- #address-cells: shall be set to 1. Encode the nand CS. +- #size-cells : shall be set to 0. +- clocks : shall reference nand controller clocks. +- clock-names : nand controller internal clock names. Shall contain : + * "ahb" : AHB gating clock + * "mod" : nand controller clock + +Optional properties: +- dmas : shall reference DMA channel associated to the NAND controller. +- dma-names : shall be "rxtx". + +Optional children nodes: +Children nodes represent the available nand chips. + +Optional properties: +- reset : phandle + reset specifier pair +- reset-names : must contain "ahb" +- allwinner,rb : shall contain the native Ready/Busy ids. +- nand-ecc-mode : one of the supported ECC modes ("hw", "soft", "soft_bch" or + "none") + +see Documentation/devicetree/bindings/mtd/nand.txt for generic bindings. + + +Examples: +nfc: nand@1c03000 { + compatible = "allwinner,sun4i-a10-nand"; + reg = <0x01c03000 0x1000>; + interrupts = <0 37 1>; + clocks = <&ahb_gates 13>, <&nand_clk>; + clock-names = "ahb", "mod"; + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>; + + nand@0 { + reg = <0>; + allwinner,rb = <0>; + nand-ecc-mode = "soft_bch"; + }; +}; |