From patchwork Wed Jul 29 13:47:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume Tucker X-Patchwork-Id: 247248 Delivered-To: patch@linaro.org Received: by 2002:a50:110d:0:0:0:0:0 with SMTP id e13csp1125991eck; Wed, 29 Jul 2020 06:47:52 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzOfn3RAEPi2PEKUAh8Qy0AwkvmQkdf5Z7hagM+D1AdFjHuyQotwx82opXj8HhgXF0wESzG X-Received: by 2002:a17:906:fa15:: with SMTP id lo21mr29044750ejb.42.1596030472657; Wed, 29 Jul 2020 06:47:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1596030472; cv=none; d=google.com; s=arc-20160816; b=PYin9ZToDfDGve/jZkgBoqzfrhIFB5ap4JmMYYRdWLcZgRhnfIaIh5910PcfNJ0fwd wS9fMd4lyzlTEk+HqJD2dZwVr8KHrZjq+PjpsQ9ktYFD7Z6tw3GFOJXusvsulxyuESzb deUDhU3ALYS5MkOpshqnb72FLCY2OkX7ln7rNOwNPtCojb9DNE2tffd6i09cOZu9h6mx r9CZhlSPow4Q31iafNckXNy6J/OVaehiikvaootVPjUC02JUG75yNEauDyO7l+nCejrE 9YeUtO7TXnWMATNReUwGiW2WfcPNOMtZP8KZ+vjRZ105HWtx5M+7FSMaGC5EbJV//+Rp dMtw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=nxH9vsjlbcgN3uUHXFQJDQE5efI/WRZeMpiPzGu3pS0=; b=v/YOI+Rx12Wn3VrckRPHlUC93WDNYuFcaBWYyrSDL2KDyQTzKHG5d2t4SB3sxLgwc+ DW2J17JAQVnXqNgvFLaFnw1Xdn7TqWQ3U2q7qnqsxzhuUzYNwH66DIoq3AwHokmYvXHS PyKAI1D5DqjOllH1ZXkW2n1xcYgTjQ65u5ieK2YgMG+Iz2dYpwM6rhngHV1sW7KE6jpN Bk535QO7ngnsTZ2tQm1HVwEnQkFvUIMvj/Ynwg0MYxz8TAq+ftrXGYJEB9ZYQd3uVoc2 Ce/soZgd+Mmljh4+lPq1Y7ojSoq6pxI8Rssod0e0OAUct+JT+wJ/+jPLN/5nB5tOGSzG Rqyw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-samsung-soc-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-samsung-soc-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=collabora.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bz20si1236053ejc.90.2020.07.29.06.47.52; Wed, 29 Jul 2020 06:47:52 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-samsung-soc-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-samsung-soc-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-samsung-soc-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=collabora.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726391AbgG2Nrw (ORCPT + 4 others); Wed, 29 Jul 2020 09:47:52 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:39634 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726336AbgG2Nrv (ORCPT ); Wed, 29 Jul 2020 09:47:51 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: gtucker) with ESMTPSA id 6F6B6283C05 From: Guillaume Tucker To: Russell King , Kukjin Kim , Krzysztof Kozlowski , Rob Herring Cc: kernel@collabora.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] ARM: exynos: clear L220_AUX_CTRL_NS_LOCKDOWN in default l2c_aux_val Date: Wed, 29 Jul 2020 14:47:31 +0100 Message-Id: <860eb8a1eed879e55daf960c96acdac514cbda93.1596028601.git.guillaume.tucker@collabora.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The L220_AUX_CTRL_NS_LOCKDOWN flag is set during the L2C enable sequence. There is no need to set it in the default register value, this was done before support for it was implemented in the code. It is not set in the hardware initial value either. Clean this up by removing this flag from the default l2c_aux_val, and add it to the l2c_aux_mask to print an alert message if it was already set before the kernel initialisation. Signed-off-by: Guillaume Tucker --- arch/arm/mach-exynos/exynos.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) -- 2.20.1 diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c index 36c37444485a..a96f3353a0c1 100644 --- a/arch/arm/mach-exynos/exynos.c +++ b/arch/arm/mach-exynos/exynos.c @@ -193,8 +193,8 @@ static void __init exynos_dt_fixup(void) } DT_MACHINE_START(EXYNOS_DT, "Samsung Exynos (Flattened Device Tree)") - .l2c_aux_val = 0x3c400000, - .l2c_aux_mask = 0xc20fffff, + .l2c_aux_val = 0x38400000, + .l2c_aux_mask = 0xc60fffff, .smp = smp_ops(exynos_smp_ops), .map_io = exynos_init_io, .init_early = exynos_firmware_init,