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

[Otavio Salvador]

Hello Fabio,

On Mon, Nov 27, 2017 at 2:17 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote:
> On Mon, Nov 27, 2017 at 11:31 AM, Otavio Salvador
> <otavio@xxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxx>
>
> Has this been tested? I mean, have you tested the locking mechanism is
> really working in this SPI NOR flash?

Yes, we tested it here using Linux 4.14 but didn't notice this SPI NOR
does not support the lock.

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

Humm it is confusing, at least for me that am not used to the this. In
any case, I think for now it is better to include the partitions
without read-only and lock as it is convenient to have access to it
from Linux so we adhere the same partition layout used in Boundary's
Linux fork.

-- 
Otavio Salvador                             O.S. Systems
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