linux-kernel - Re: [PATCH v3] ARM: dts: imx6qdl-nitrogen6x: Add SPI NOR partitions

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Message-ID: <CAOMZO5Dtf6mjWt1wg_5NDUNAe4XZ3jvxu0KC2CaUo0wE7gjaRQ@mail.gmail.com>
Date:   Mon, 27 Nov 2017 14:17:04 -0200
From:   Fabio Estevam <festevam@...il.com>
To:     Otavio Salvador <otavio@...ystems.com.br>
Cc:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Mark Rutland <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Russell King <linux@...linux.org.uk>,
        Gary Bisson <gary.bisson@...ndarydevices.com>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH v3] ARM: dts: imx6qdl-nitrogen6x: Add SPI NOR partitions

On Mon, Nov 27, 2017 at 11:31 AM, Otavio Salvador
<otavio@...ystems.com.br> wrote:
> This adds the partitions definition for the SPI NOR to provide
> backward compatibility with the documented[1] layout used with
> Boundary Devices BSP.
>
> 1. https://boundarydevices.com/boot-flash-access-linux/
>
> It exports to Linux:
>
>  mtd0: bootloader
>  mtd1: env
>  mtd2: splash
>
> Signed-off-by: Otavio Salvador <otavio@...ystems.com.br>

Has this been tested? I mean, have you tested the locking mechanism is
really working in this SPI NOR flash?

As far as I can see the SPI locking mechanism does not need device
tree properties.