linux-kernel - Re: [PATCH 3/3] mtd: parsers: ofpart: support BCM4908 fixed partitions

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Date:   Tue, 19 Jan 2021 16:51:38 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Rafał Miłecki <zajec5@...il.com>,
        Richard Weinberger <richard@....at>
Cc:     Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Boris Brezillon <bbrezillon@...nel.org>,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH 3/3] mtd: parsers: ofpart: support BCM4908 fixed
 partitions

Hi Rafał,

Rafał Miłecki <zajec5@...il.com> wrote on Fri, 15 Jan 2021 16:39:01
+0100:

> From: Rafał Miłecki <rafal@...ecki.pl>
> 
> BCM4908 partitioning is based on fixed layout but allows specifying
> multiple firmware partitions. It requires detecting which firmware
> partition was used for booting current kernel.
> 
> To support such cases without duplicating a lot of code (without copying
> most of the ofpart.c code) support for post-parsing callback was added.
> 
> BCM4908 callback simply reads offset of currently used firmware
> partition from the DT. Bootloader specifies it using the "brcm_blparms"
> property.
> 
> Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>

The approach looks fine by me, let's see what other maintainers think.


Cheers,
Miquèl