From mboxrd@z Thu Jan  1 00:00:00 1970
From: gregory.clement@bootlin.com (Gregory CLEMENT)
Date: Mon, 19 Mar 2018 17:44:12 +0100
Subject: ARM: dts: armada-385-linksys: Disable internal RTC
In-Reply-To: <20180317154750.32560-1-hauke@hauke-m.de> (Hauke Mehrtens's
 message of "Sat, 17 Mar 2018 16:47:50 +0100")
References: <20180317154750.32560-1-hauke@hauke-m.de>
Message-ID: <87muz4xbfn.fsf@bootlin.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi Hauke,
 
 On sam., mars 17 2018, Hauke Mehrtens <hauke@hauke-m.de> wrote:

> The internal RTC does not work correctly on these Linksys boards based
> on Marvell SoCs. For me it only shows Wed Dec 31 23:59:59 1969 and for
> others it is off by 3 minutes in 10 minutes running, this was reported
> by multiple users. On the Linksys Mamba device the device tree comment
> says that no crystal is connected to the internal RTC, this is probably
> also true for the other devices.
>
> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

Applied on mvebu/dt

Thanks,

Gregory

> ---
>  arch/arm/boot/dts/armada-385-linksys.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm/boot/dts/armada-385-linksys.dtsi b/arch/arm/boot/dts/armada-385-linksys.dtsi
> index 434dc9aaa5e4..b7bbf15571c5 100644
> --- a/arch/arm/boot/dts/armada-385-linksys.dtsi
> +++ b/arch/arm/boot/dts/armada-385-linksys.dtsi
> @@ -282,3 +282,8 @@
>  	status = "okay";
>  	usb-phy = <&usb3_1_phy>;
>  };
> +
> +&rtc {
> +	/* No crystal connected to the internal RTC */
> +	status = "disabled";
> +};
> -- 
> 2.11.0
>

-- 
Gregory Clement, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com