linux-kernel - Re: [PATCH] MIPS: zboot: put appended dtb into a section

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Message-Id: <a5b08af5-ed9d-4adc-a311-35f962233f47@www.fastmail.com>
Date:   Mon, 26 Oct 2020 13:11:27 +0000
From:   "John Thomson" <git@...nthomson.fastmail.com.au>
To:     "Chuanhong Guo" <gch981213@...il.com>, linux-mips@...r.kernel.org
Cc:     "Thomas Bogendoerfer" <tsbogend@...ha.franken.de>,
        "open list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] MIPS: zboot: put appended dtb into a section

On Mon, 26 Oct 2020, at 12:29, Chuanhong Guo wrote:
> This will make a separated section for dtb appear in ELF, and we can
> then use objcopy to patch a dtb into vmlinuz when RAW_APPENDED_DTB
> is set in kernel config.

Thank you Chuanhong Guo, this worked for me.

I have successfully network boot tested this change on ath79 hardware:
- kernel vmlinuz.bin
  then appended DTB, and packed into a uImage (out of kernel tree)
- kernel vmlinuz
  then updated ELF DTB appended_dtb section, and ELF booted

Cheers,
-- 
  John Thomson