From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E288734BA59; Thu, 19 Feb 2026 16:31:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771518664; cv=none; b=fUXBWc5EpyAuQFy3Ly7xhm1xAPhuqT2urCg1hwvRDBHgfLFofdrl2oScY+eqm7YbO3uUIYaoO2s5LQD/vB1nHnXj3BVFVUfAoHcXEHjuwI5hx3Up8XXnD2YuojqecoITXdnCJtH5A4brytYPmXuHUcff7DsVJUznBRRsc37kTvA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771518664; c=relaxed/simple; bh=2y2yUNQLvl9upq9zpGwA5oOXDtN7gZ+FS2/mKJBl6kM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=XtqDLpPukNI8HkQVEgzjjgWCLNGdJfySEC+/93HpHXbWY9jcWIjZpHFp7J2rjp2eIPjPc4PpmwlK2397cgmoHvv61U4HF42vDMZJpGMIuf6CM7S0Mv9KbVgHTJnQNCokNvjHty+k4M5K2qa7DY49tTEGp1P+z1f76K586mMeFxo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=X23sGSAW; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="X23sGSAW" Received: from francesco-nb (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id DC3DD1FC8B; Thu, 19 Feb 2026 17:30:53 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1771518654; bh=LgBwNLmrIki/SK8WVAvQt3v0t3CnW+2Cc51W3lptYuE=; h=From:To:Subject; b=X23sGSAWt2EKgPi26CvX/nfnR5KTeIuJZ2ZPzg30iqU0ZwE2qV0PFo1WVYGM/JVJu +Rc46kzbtvHjhgd99Bb+VTxvQ6GFozf0Q/9BP3qYV9aTx3CYPXwyswK40fo7wfrwRk cIaSFgVamNmv+gzsv1BViRmA9kwuk+q+4HfOkhmFRYirqSHTd/YqcRwsL3tuWsvm6N CD2qI6rZSODERTNHBYM4lemEzlRJBWpyZTJkrcUp+BenuIrX5Z/SOdDL7RyZzSnsIA uhqfWl09O02rXsjo7alV4P2qOM7n4BfiU0Zt2QNW+l/BrmOV/auex275ifwolr3zTa a2h3at6TJox0A== Date: Thu, 19 Feb 2026 17:30:50 +0100 From: Francesco Dolcini To: Frank Li , Krzysztof Kozlowski Cc: max.oss.09@gmail.com, Francesco Dolcini , Max Krummenacher , Conor Dooley , Fabio Estevam , Peng Fan , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Revert "ARM: dts: imx: move nand related property under nand@0" Message-ID: <20260219163050.GA194254@francesco-nb> References: <20260219151157.2549198-1-max.oss.09@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Feb 19, 2026 at 11:01:26AM -0500, Frank Li wrote: > On Thu, Feb 19, 2026 at 04:11:49PM +0100, max.oss.09@gmail.com wrote: > > From: Max Krummenacher > > > > This reverts commit 8124b4a4a96b57d6cc3705a9df9623c52baa047b. > > > > The change introduced a regression: at least Colibri iMX6ULL and > > Colibri iMX7 no longer boot with that commit applied, while they boot > > again after reverting it. > > > > Although this has only been verified on these two modules, the issue > > is expected to affect all device trees using the gpmi-nand driver. > > > > [ 0.876938] Creating 5 MTD partitions on "gpmi-nand": > > [ 0.876974] 0x000000000000-0x000000080000 : "mx7-bcb" > > [ 0.879860] 0x000000080000-0x000000200000 : "u-boot1" > > [ 0.884761] 0x000000200000-0x000000380000 : "u-boot2" > > [ 0.886993] 0x000000380000-0x000000400000 : "u-boot-env" > > [ 0.894686] 0x000000400000-0x000020000000 : "ubi" > > [ 0.899054] gpmi-nand 33002000.nand-controller: driver registered. > > ... > > [ 0.960443] ubi0: default fastmap pool size: 200 > > [ 0.960476] ubi0: default fastmap WL pool size: 100 > > [ 0.960500] ubi0: attaching mtd4 > > [ 1.636355] ubi0 error: scan_peb: bad image sequence number 1588722158 in PEB 4060, expected 1574791632 > > ... > > [ 1.649889] ubi0 error: ubi_attach_mtd_dev: failed to attach mtd4, error -22 > > [ 1.650029] UBI error: cannot attach mtd4 > > ... > > [ 1.670262] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,253) > > Can you help found the real reason why not boot? > nand@0 is preferred format for MTD raw nand. I already raised the issue when you sent this patch series, we need to consider the other users of this DT blob, for example U-Boot. Please see my comments and Krzysztof one here [1] I agree on investigating this, but I see no other option than reverting for now. [1] https://lore.kernel.org/all/20251105115538.GA17091@francesco-nb/ Francesco