From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6434DC04E84 for ; Wed, 15 May 2019 11:18:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 329CC20862 for ; Wed, 15 May 2019 11:18:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557919117; bh=if+cigsVb9L5vqMDI0IdmjwNkCaIJB4Q0xkEqqjUYls=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=QgRXJ/bQfjG0KrS9o44rBvHuV6783DKynXPP8UnX6rImRqDvj70ixcBk5bqcVkcfB OhIAfsgCHhYx+XwTeGzmHZDp0+0Fw4f5c29taVSUHe41I9/91G0twAUmshQupkPd6i toOc0YI1Eg/KzaUNQ61bhNxoIlJdBjUgm6jwlO1E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729249AbfEOLSg (ORCPT ); Wed, 15 May 2019 07:18:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:56044 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730833AbfEOLSe (ORCPT ); Wed, 15 May 2019 07:18:34 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B997D2084F; Wed, 15 May 2019 11:18:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557919114; bh=if+cigsVb9L5vqMDI0IdmjwNkCaIJB4Q0xkEqqjUYls=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OtWSk8fIAWESpEZ8pFIHjqEXV7CNRbDqv+X5IeSSod2CSlTKVMlwd9zXjeQvRb6nK BeANFnZIysUTkjdcjT87/qxLA6pr+T7m5J4IxDZfBjkXKwf4kO8OGadNd4aYrIvalG 4Cj+7lP3oq4zLRysCoJoMj4OgO/cxlVzhjQ5HjGI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Heinrich Schuchardt , Gregory CLEMENT , Sasha Levin Subject: [PATCH 4.14 072/115] arm64: dts: marvell: armada-ap806: reserve PSCI area Date: Wed, 15 May 2019 12:55:52 +0200 Message-Id: <20190515090704.676783539@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190515090659.123121100@linuxfoundation.org> References: <20190515090659.123121100@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 132ac39cffbcfed80ada38ef0fc6d34d95da7be6 ] The memory area [0x4000000-0x4200000[ is occupied by the PSCI firmware. Any attempt to access it from Linux leads to an immediate crash. So let's make the same memory reservation as the vendor kernel. [gregory: added as comment that this region matches the mainline U-boot] Signed-off-by: Heinrich Schuchardt Signed-off-by: Gregory CLEMENT Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/marvell/armada-ap806.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi index 30d48ecf46e08..27d2bd85d1ae9 100644 --- a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi @@ -65,6 +65,23 @@ method = "smc"; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + /* + * This area matches the mapping done with a + * mainline U-Boot, and should be updated by the + * bootloader. + */ + + psci-area@4000000 { + reg = <0x0 0x4000000 0x0 0x200000>; + no-map; + }; + }; + ap806 { #address-cells = <2>; #size-cells = <2>; -- 2.20.1