linux-kernel - Re: [PATCH] arm64: dts: rockchip: fix eMMC corruption on NanoPC-T6 with A3A444 chips

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Message-ID: <20251030091649.25396-1-liujianfeng1994@gmail.com>
Date: Thu, 30 Oct 2025 17:16:49 +0800
From: Jianfeng Liu <liujianfeng1994@...il.com>
To: cnsztl@...il.com
Cc: conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	dsimic@...jaro.org,
	grzegorz@...rnicz.uk,
	heiko@...ech.de,
	jonas@...boo.se,
	krzk+dt@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	liujianfeng1994@...il.com,
	robh@...nel.org,
	shawn.lin@...k-chips.com
Subject: Re: [PATCH] arm64: dts: rockchip: fix eMMC corruption on NanoPC-T6 with A3A444 chips

Hi Tianling,

On Tue, 28 Oct 2025 01:34:25 +0800, Tianling Shen wrote:
>>> May I ask you to test another patch I just posted to see if it fixes
>>> your issue?
>>>
>>> https://patchwork.kernel.org/project/linux-mmc/ 
>>> patch/1760924981-52339-1- git-send-email-shawn.lin@...k-chips.com/
>> 
>> Thank you for the patch! I will ask my friend to test it but he uses 
>> this board as a home router, so it may take a few days or weeks to 
>> report the result.
>
>Hi all, sorry for the late. My friend has tested this patch and it works 
>fine after 50 times dd operation. A big thanks to Shawn!
>
>And hi Jianfeng, I found you made a similiar patch[1] for the ROCK 5 ITX 
>board to lower down the mmc speed, could you please check if this patch 
>also fixes your issue?

I don't have rock 5 itx near my hand to test, but I have another board
ROCK 5B with similar issue. And after applying the patch from Shawn, this
board can run HS400 mode with max freq 200000000.

I will test on rock 5 itx later when I have chance.

Best regards,
Jianfeng