From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 724E41F76A5; Wed, 27 Nov 2024 13:34:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732714492; cv=none; b=OVDIUmuC2EzgEw28MIG/7X/B/sBQyUf/rJzWq9YOntr++HMFtJ33iyrUvIpwhAY9FiWQH449UM6+OoLmVzQByNCSrTles79aKRadvF45WaKKsCJuqyXKL/Wv4ezk+VsJ675JD/ugeQpZRaGmjGY/aJVgmEkCTKeFA73cOiHtuVk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732714492; c=relaxed/simple; bh=A8gAgVEiZnE1R/aMVQBm05Lt+bamxYymAWe7jZVjljk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=I7QwlgAu11hKafpEzSPklxTprh6d9T6NRvdifaPrcGKSHwmaIKxvlkBTb4h26As9fMYTsL9wotvCVjit8UFvQcl66YQM8S4vJD6H+ffmicEdr+BEwNq/ov5W8xel8a040J/iTaJigMrMSu002lLm874iBKnC9z13lavZdTL0aQU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=nQgV+ldI; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="nQgV+ldI" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1732714488; bh=A8gAgVEiZnE1R/aMVQBm05Lt+bamxYymAWe7jZVjljk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=nQgV+ldIPj1gKbmYnxdVD91tLqAhTi0nkIptkvrBJCc5RVTHj0ouPwEWS0nGifcu0 swz8eJNPtF4yK7AuDy6qN9kDFyGVF/SjB+stwyZv8kf71sxZpLyWXwDrLMRAPTy7Lf QTGGXxC67U9KecN0wvFYtgNJi5WKlL7uNLEO1DwhQunY9cEBW+9et1SwCVg6Q/Okqf yOIYU7w3zWdV4xOGZIF83Qp+XDDeJNUqU88gVw8Gq5INwnyKBsbXgEYAie7fOQitv+ vb7X4Cz6a8tWwkPGeSq64FfmQD937gZ5vQ9UdajAB90HlgQev7ezaPofUgd/SdNwvG B4uirEwJFBfSg== Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id 387F717E3706; Wed, 27 Nov 2024 14:34:48 +0100 (CET) Message-ID: <369df136-220a-44c9-a48c-1307f3741d27@collabora.com> Date: Wed, 27 Nov 2024 14:34:48 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC v1 12/14] arm64: dts: mediatek: mt7988: add reserved memory To: Frank Wunderlich , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger Cc: Frank Wunderlich , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org References: <20241029103937.45852-1-linux@fw-web.de> <20241029103937.45852-13-linux@fw-web.de> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: <20241029103937.45852-13-linux@fw-web.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Il 29/10/24 11:39, Frank Wunderlich ha scritto: > From: Frank Wunderlich > > Add memory range handled by ATF to not be touched by linux kernel. > > Signed-off-by: Frank Wunderlich If you are really sure that this is always the same for all boards based on MT7988, I will trust you and give you my R-b once this series gets out of RFC state. Cheers, Angelo > --- > arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi > index a3a7deda35a5..7721d2ec06ee 100644 > --- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi > +++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi > @@ -81,6 +81,18 @@ reg_3p3v: regulator-3p3v { > regulator-always-on; > }; > > + reserved-memory { > + #address-cells = <2>; > + #size-cells = <2>; > + ranges; > + > + /* 320 KiB reserved for ARM Trusted Firmware (BL31 and BL32) */ > + secmon_reserved: secmon@43000000 { > + reg = <0 0x43000000 0 0x50000>; > + no-map; > + }; > + }; > + > soc { > compatible = "simple-bus"; > ranges;