From patchwork Sun Aug 11 21:00:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 11089083 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CF9A114F7 for ; Sun, 11 Aug 2019 21:02:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BFE4A26E69 for ; Sun, 11 Aug 2019 21:02:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B43F827CEA; Sun, 11 Aug 2019 21:02:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 60A3D26E69 for ; Sun, 11 Aug 2019 21:02:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726681AbfHKVBo (ORCPT ); Sun, 11 Aug 2019 17:01:44 -0400 Received: from mail-lf1-f67.google.com ([209.85.167.67]:40757 "EHLO mail-lf1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726659AbfHKVBn (ORCPT ); Sun, 11 Aug 2019 17:01:43 -0400 Received: by mail-lf1-f67.google.com with SMTP id b17so72962761lff.7; Sun, 11 Aug 2019 14:01:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ktJdYx+oayM5XZOYipi+WOTUfNybPIUthW663QchIPc=; b=nBa4gJEnzVz4H9ay8Hnir7XLvYkmkGxv5NIPZ5m/Gmvejqz0kqLO00ti5iunFwGi6i IJkN8RN1S6jffhdmQwwBahEh9f0Js3+9pmS5fDby0UAxW2BU9DDfzmWGfHce91iBr1ty dyD0IEf+hoHXSA0z72oV2ginntGe6akmWaHW2Tw/HJGqDAjffqM6toJV1LHoCtWaT0ht bovaT2QsLe5HLZfkQr/WHjsTIbiGZfFjSij8Auz1LfNTkGpLr3Rda+Tyw1ieqq5nULBZ TuNYvehVtRFAH9GM7133G6sWSNpSdixTOOBp622uab38VE1qUzBsaORum40wAj5+yQcW 92Ow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ktJdYx+oayM5XZOYipi+WOTUfNybPIUthW663QchIPc=; b=aHL1GFwnXhLoph2yfHJkp6NlK/8yI9wxmsaAsz8oM8O/O8Yl8VlW7RH5CZSlA6AjqK unxasPlJ2881qSbNnswtZ0hDSfI0N4C6hAl25X5iXge+vBfB7DDHB9G+8opUt6R/MSh/ 55Xm/cjTuKuXlDLOkZyM94sq0kPU4ZV3goG9ORGs2EXyFcRuwDECpwihLcNIwHxl373Y 28ZPVN4mneiKtXuv5PZ5lZ3aR4PM3rUpzct9Bd9QF4zsO5R0VrI5318iJAskuS8XVsYs HeqRESmqL2orQtD0jlw4yvRvNRzTGNMJ0MC4yIHjy/xa4WBs6p3NvSnosSh9sOBCr9qq Xuxw== X-Gm-Message-State: APjAAAXZfrFXu38yEny+S/Jfy000n9x17bOpClRpOMlUXaGI88J4rted 66lKzEmtoRMEf18FVCn6ZfY= X-Google-Smtp-Source: APXvYqzNP7ZwZgY913FGGgrbkLxuuWuf7J1Mrd3PM87BcAgXErg8K7p1PSMvMKExihkajZnEhPeVlQ== X-Received: by 2002:a19:8586:: with SMTP id h128mr18772052lfd.62.1565557300506; Sun, 11 Aug 2019 14:01:40 -0700 (PDT) Received: from localhost.localdomain ([94.29.34.218]) by smtp.gmail.com with ESMTPSA id z25sm18708161lfi.51.2019.08.11.14.01.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 11 Aug 2019 14:01:39 -0700 (PDT) From: Dmitry Osipenko To: Rob Herring , Michael Turquette , Joseph Lo , Thierry Reding , Jonathan Hunter , Peter De Schrijver , Prashant Gaikwad , Stephen Boyd Cc: devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v10 13/15] memory: tegra: Ensure timing control debug features are disabled Date: Mon, 12 Aug 2019 00:00:41 +0300 Message-Id: <20190811210043.20122-14-digetx@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190811210043.20122-1-digetx@gmail.com> References: <20190811210043.20122-1-digetx@gmail.com> MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Timing control debug features should be disabled at a boot time, but you never now and hence it's better to disable them explicitly because some of those features are crucial for the driver to do a proper thing. Acked-by: Peter De Schrijver Signed-off-by: Dmitry Osipenko --- drivers/memory/tegra/mc.c | 3 +++ drivers/memory/tegra/mc.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index 43819e8df95c..1bad7f238881 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -657,6 +657,9 @@ static int tegra_mc_probe(struct platform_device *pdev) } else #endif { + /* ensure that debug features are disabled */ + mc_writel(mc, 0x00000000, MC_TIMING_CONTROL_DBG); + err = tegra_mc_setup_latency_allowance(mc); if (err < 0) { dev_err(&pdev->dev, diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h index 410efc4d7e7b..cd52628c2b96 100644 --- a/drivers/memory/tegra/mc.h +++ b/drivers/memory/tegra/mc.h @@ -30,6 +30,8 @@ #define MC_EMEM_ARB_OVERRIDE 0xe8 #define MC_EMEM_ARB_OVERRIDE_EACK_MASK 0x3 +#define MC_TIMING_CONTROL_DBG 0xf8 + #define MC_TIMING_CONTROL 0xfc #define MC_TIMING_UPDATE BIT(0)