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: 11691049 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A29096C1 for ; Wed, 29 Jul 2020 13:47:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 930A222DFB for ; Wed, 29 Jul 2020 13:47:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726391AbgG2Nrw (ORCPT ); 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(-) 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,