From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F99930F80C; Tue, 21 Jul 2026 17:41:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784655706; cv=none; b=nqwTZSbi3/vt2HFUkKmesqlakmJkr12QkkNBoiEZ/woVeORLej54ySz8rMr85e3dpcfCNOXxaem1/1pK2SHKBMe36uH/94gYQl1OxR/29toFTe5Q4d+mDsBnmkT/RJWOGvZUmpGgd43+sGNf0Z/Dnz80qpSzTlGkFEJo63JRFZE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784655706; c=relaxed/simple; bh=yRkJuF+mcyqvOeEYi5pBp8i/Loc/ytaJZfB1kX2dK/E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hv4NKqUCDhw+b5dmB2MkRmg2+NMJOdNVK/Q5wxOll2SV03y4F53jpB/1UviFj4+oE084mi42ettINzurrwDeuZ3jvDIRIluaV7c852xvQN0aNse/s/cPd8Mkdy33tpBQ1IIo5hEp6zzxUeZaS0yRIgUUrtTcPBH680vJOLe+j38= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=G62ktEPr; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="G62ktEPr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 251251F000E9; Tue, 21 Jul 2026 17:41:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784655704; bh=EMDPxppnp5K5FEtnu7GhjEIlhKdvPhJQ09CfkwG724I=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=G62ktEPri6o5szeeswO/X45/WoejkMwQqymapf4IQMKwnOtdUWiqUyu75RJeyR3bX X5DTshASYwJnFzs/TBmRIuUEAt+43+YZoj4EJ527mXU2Xhw7mWSRyujoqA7bWCnVW/ a56eBdAZNwEGEBBtb9QhuZ9EhT5G+xn93tMUK4aI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Brian Norris , Douglas Anderson , Chen-Yu Tsai , Heiko Stuebner , Sasha Levin Subject: [PATCH 6.18 0111/1611] arm64: dts: rockchip: Add #{address,size}-cells to Chromium-based /firmware Date: Tue, 21 Jul 2026 17:03:47 +0200 Message-ID: <20260721152517.348817623@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152514.750365251@linuxfoundation.org> References: <20260721152514.750365251@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Brian Norris [ Upstream commit 0b74f1a037672980c477bbe6b3848fb5341eb4f1 ] Chromium/Depthcharge bootloaders may dynamically add a few device nodes to a system's DTB under a /firmware node. A typical DT looks something like the following: ## From a RK3399 Gru/Kevin Chromebook: # find /sys/firmware/devicetree/base/firmware /sys/firmware/devicetree/base/firmware /sys/firmware/devicetree/base/firmware/coreboot /sys/firmware/devicetree/base/firmware/coreboot/ram-code /sys/firmware/devicetree/base/firmware/coreboot/compatible /sys/firmware/devicetree/base/firmware/coreboot/board-id /sys/firmware/devicetree/base/firmware/coreboot/reg /sys/firmware/devicetree/base/firmware/coreboot/name /sys/firmware/devicetree/base/firmware/chromeos /sys/firmware/devicetree/base/firmware/chromeos/readonly-firmware-version /sys/firmware/devicetree/base/firmware/chromeos/active-ec-firmware /sys/firmware/devicetree/base/firmware/chromeos/firmware-version /sys/firmware/devicetree/base/firmware/chromeos/nonvolatile-context-storage /sys/firmware/devicetree/base/firmware/chromeos/vboot-shared-data /sys/firmware/devicetree/base/firmware/chromeos/nonvolatile-context-size /sys/firmware/devicetree/base/firmware/chromeos/nonvolatile-context-offset /sys/firmware/devicetree/base/firmware/chromeos/hardware-id /sys/firmware/devicetree/base/firmware/chromeos/compatible /sys/firmware/devicetree/base/firmware/chromeos/firmware-type /sys/firmware/devicetree/base/firmware/chromeos/fmap-offset /sys/firmware/devicetree/base/firmware/chromeos/name /sys/firmware/devicetree/base/firmware/ranges /sys/firmware/devicetree/base/firmware/name The /firmware node has an empty 'ranges', but does not have address/size-cells. Commit 6e5773d52f4a ("of/address: Fix WARN when attempting translating non-translatable addresses") started requiring #address-cells for a device's parent if we want to use the reg resource in a device node. This leads to errors like the following: [ 7.763870] coreboot_table firmware:coreboot: probe with driver coreboot_table failed with error -22 Add appropriate #{address,size}-cells to work around the problem. Note that Google has also patched the Depthcharge bootloader source to add {address,size}-cells [1], but bootloader updates are typically delivered only via Google OS updates. Not all users install Google software updates, and even if they do, Google may not produce updated binaries for all/older devices. [1] https://lore.kernel.org/all/20241209092809.GA3246424@google.com/ https://crrev.com/c/6051580 ("coreboot: Insert #address-cells and #size-cells for firmware node") Closes: https://lore.kernel.org/all/aeKlYzTiL0OB1y3g@google.com/ Fixes: 6e5773d52f4a ("of/address: Fix WARN when attempting translating non-translatable addresses") Signed-off-by: Brian Norris Reviewed-by: Douglas Anderson Reviewed-by: Chen-Yu Tsai [On RK3399-based Chromebooks there is no real other way than to load the DTB together with its kernel when running a mainline kernel and as the whole line is EOL, there also won't be any updates to the bootloader that could fix that issue there.] Link: https://patch.msgid.link/20260428200712.2660635-2-briannorris@chromium.org Signed-off-by: Heiko Stuebner Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi index 7eca1da78cffab..2f9e39671efc05 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi @@ -18,6 +18,11 @@ chosen { stdout-path = "serial2:115200n8"; }; + firmware { + #address-cells = <2>; + #size-cells = <2>; + }; + /* * Power Tree * -- 2.53.0