linux-kernel - Re: OCOTP and DWMAC builtin modules are needed for imx93-11x11-evk kernel dev via TFTP and NFS

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Message-ID: <Z9kZD0vEsrrIftk5@alb3rt0-ThinkPad-P15-Gen-1>
Date: Tue, 18 Mar 2025 07:56:15 +0100
From: Alberto Merciai <alb3rt0.m3rciai@...il.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: shawnguo@...nel.org, linux-kernel@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: OCOTP and DWMAC builtin modules are needed for imx93-11x11-evk
 kernel dev via TFTP and NFS

On Mon, Mar 17, 2025 at 08:14:30PM +0100, Krzysztof Kozlowski wrote:
> On 17/03/2025 19:59, Alberto Merciai wrote:
> >>>
> >>> By default they are enabled as external modules, then until we don't
> >>
> >> So everything is as expected...
> >>
> >>> reach userland they are not loaded thus eth and all the mechanism behind
> >>> that are out.
> >>>
> >>> I'm not using initramfs just tftp and NFS as follows:
> >>
> >> All arm64 platforms are supposed to use initramfs on defconfig with
> >> necessary modules.
> > Thanks a lot, I was not aware of that.
> > Do you have any reference?
> Reference for what? initramfs?
> 
> I am using meta-qcom initramfs:
> https://github.com/krzk/yocto-qcom
> with copy_modules argument:
> 
> https://github.com/krzk/tools/blob/7c0d1cacad06aa0cae8c2983ae26889471a9aaa6/linux/build.sh#L543
> 
> And here is how I append stuff, but simple `cat` one cpio archive to
> another cpio archive would work as well, just be sure some paths are not
> symlinks (/bin /usr/bin) because then `cat` has issues:
> 
> https://github.com/krzk/tools/blob/7c0d1cacad06aa0cae8c2983ae26889471a9aaa6/linux/build.sh#L504
> 
> Best regards,
> Krzysztof
Really appreciate, Thanks a lot!