From 6901d947be5ba1245a0f63271355b95f9056a362 Mon Sep 17 00:00:00 2001 From: Richard Genoud Date: Wed, 20 Mar 2013 12:23:40 +0100 Subject: [PATCH] ARM: at91/at91sam9x5cm: add 1-wire chip on CM board This add the 1-wire chip present on the CM board to the DTS. As the pin is also used by leds, it's disabled by default. If the board really wants it, it can be enabled in the board DTS. Signed-off-by: Richard Genoud Signed-off-by: Nicolas Ferre --- arch/arm/boot/dts/at91sam9x5cm.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/at91sam9x5cm.dtsi b/arch/arm/boot/dts/at91sam9x5cm.dtsi index 4027ac7e4502..347a74a857f6 100644 --- a/arch/arm/boot/dts/at91sam9x5cm.dtsi +++ b/arch/arm/boot/dts/at91sam9x5cm.dtsi @@ -24,6 +24,16 @@ }; ahb { + apb { + pinctrl@fffff400 { + 1wire_cm { + pinctrl_1wire_cm: 1wire_cm-0 { + atmel,pins = <1 18 0x0 0x2>; /* PB18 multidrive, conflicts with led */ + }; + }; + }; + }; + nand0: nand@40000000 { nand-bus-width = <8>; nand-ecc-mode = "hw"; @@ -74,4 +84,14 @@ gpios = <&pioD 21 0>; }; }; + + 1wire_cm { + compatible = "w1-gpio"; + gpios = <&pioB 18 0>; + linux,open-drain; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_1wire_cm>; + status = "okay"; + }; + }; -- 2.20.1