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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, T_DKIMWL_WL_HIGH,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 88C3AC004C9 for ; Tue, 7 May 2019 05:49:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4FF5720675 for ; Tue, 7 May 2019 05:49:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557208158; bh=6rqeJIpOxgLw/JjrqCTGWN5oEHnbMtARRiJU296VwB8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BhqrcrTgvK8EKKTJYSnTPYCgj9NqTKEhxvYeBWuRJgjJNNHFK1jk4LLbWzF5yScEH 0dzTZFHmNlcoZSryoC0X/Kx23v5Xvr3R+jXI0sfPWT642MURbY5Edel+I9kL+hIRkl uxwYV80/q2Sux/JWYONkrMe9s+sQ6eE061Ne9DBc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728503AbfEGFtR (ORCPT ); Tue, 7 May 2019 01:49:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:60058 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729127AbfEGFkd (ORCPT ); Tue, 7 May 2019 01:40:33 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B12172087F; Tue, 7 May 2019 05:40:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557207632; bh=6rqeJIpOxgLw/JjrqCTGWN5oEHnbMtARRiJU296VwB8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VhxL6kclzZ7TEwIrSRmca9vDRbC2Gd8ghKbeGfZrET42LpfUa7svyCt9xYLrXUWjY a2XmyloCCXkia6FUxgoTBjgKbZ/GfLglMO6vCjzzV1og9MlzwNj3LeWUtjQsn6syTf Z7pO/MemYk3w4Zx/uFCQ1zcqjcKBYK7wOVScSO34= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Heinrich Schuchardt , Gregory CLEMENT , Sasha Levin , devicetree@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 69/95] arm64: dts: marvell: armada-ap806: reserve PSCI area Date: Tue, 7 May 2019 01:37:58 -0400 Message-Id: <20190507053826.31622-69-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190507053826.31622-1-sashal@kernel.org> References: <20190507053826.31622-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Heinrich Schuchardt [ 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 30d48ecf46e0..27d2bd85d1ae 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