From ab001302c8e1718110bb8839c270d2caa817b214 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 9 Feb 2015 08:45:25 +0100 Subject: dts: update to v3.19-rc1 Signed-off-by: Sascha Hauer --- dts/Bindings/mtd/sunxi-nand.txt | 45 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 dts/Bindings/mtd/sunxi-nand.txt (limited to 'dts/Bindings/mtd/sunxi-nand.txt') diff --git a/dts/Bindings/mtd/sunxi-nand.txt b/dts/Bindings/mtd/sunxi-nand.txt new file mode 100644 index 0000000000..0273adb863 --- /dev/null +++ b/dts/Bindings/mtd/sunxi-nand.txt @@ -0,0 +1,45 @@ +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 children nodes: +Children nodes represent the available nand chips. + +Optional properties: +- allwinner,rb : shall contain the native Ready/Busy ids. + or +- rb-gpios : shall contain the gpios used as R/B pins. +- nand-ecc-mode : one of the supported ECC modes ("hw", "hw_syndrome", "soft", + "soft_bch" or "none") + +see Documentation/devicetree/mtd/nand.txt for generic bindings. + + +Examples: +nfc: nand@01c03000 { + 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>; + status = "okay"; + + nand@0 { + reg = <0>; + allwinner,rb = <0>; + nand-ecc-mode = "soft_bch"; + }; +}; -- cgit v1.2.3