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=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 364EEC10F13 for ; Thu, 11 Apr 2019 22:13:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 06ED92146F for ; Thu, 11 Apr 2019 22:13:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MyxNEw6K" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726902AbfDKWNd (ORCPT ); Thu, 11 Apr 2019 18:13:33 -0400 Received: from mail-lf1-f68.google.com ([209.85.167.68]:37144 "EHLO mail-lf1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726640AbfDKWNb (ORCPT ); Thu, 11 Apr 2019 18:13:31 -0400 Received: by mail-lf1-f68.google.com with SMTP id o19so1570094lfl.4; Thu, 11 Apr 2019 15:13:30 -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=ht8h2cpLS/BSBUoBAwWrSOt2yNwGAUYfPpqEVndiK6k=; b=MyxNEw6KKDUlWqUxdYd99pm8Zubvd+DgFLH4iLZrki008B6YnGiO6qJl3zx6A+pLxZ xv2JaVg2DVUH/1+BwImVjZGNbzrTakleFwDf+ZdcnZd3tT0YmoNpMXLv+blih7KAHACj neLWuXfTF/U0dyrxsEp8kGuarXECZdQlAeMxRrf2PTzXLM0viKgnZZhrYoUABTrKiMfW cfwulRMb2Ji8kXO/Ve0hiuGikBZ1WBUoETZSNKM2koFf5ZxiDXlDGHJYVHF9xkekqhd1 aEdfdf290cjF/+UzQelqxUpeoU4a42kt/ferpVYjIJotnlDeQBzdnZvlyriu/S+YMlFV NKDQ== 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=ht8h2cpLS/BSBUoBAwWrSOt2yNwGAUYfPpqEVndiK6k=; b=Xwt2P/2LJ9XHTMSbZlR1GYDPo4/zmKO8iWKU59r4juI8sTvaaDixhwHVq1j8Pew7Wy eab1aXyWByV018XNgagi4RXVeO3bPJe1l1BpvsQOYmb05CUaU20/K3c928yKIVI8VN2Z Xb9whzckgOFm0uwSgWF1f448Ui5js3qDDbbUnPtGX98uWR/VifUVouuuKVqp9wBEq0K3 FoS7NjxqyH0PhS0QAfz+NnVH4bJobfe1PChATJfx1mipZX8AcPyM2VxIO9CDtWwHQV+G 3VKADBnCdh/xYZtOK1v0Dxaocq3CHSw9GI3z/xuwcQcpl+wrIKRgepvlbf3C9b8g+wOq iF2Q== X-Gm-Message-State: APjAAAWOMbUV3vl6nRkQhg+mMAOtpmK+Zv59t7EU6nMOq0ZO3vkZlwHj MDOSJ4mOfMM+4PCFqI3NMjyHHTeq X-Google-Smtp-Source: APXvYqyMInMvqvAisVuN1BfC/RYNHivuDyQYwY68qmKhe0u2/eXaq4HwbS9QGwh5lRIArppP7GS7RQ== X-Received: by 2002:ac2:44a9:: with SMTP id c9mr9123373lfm.68.1555020809568; Thu, 11 Apr 2019 15:13:29 -0700 (PDT) Received: from localhost.localdomain (ppp94-29-35-107.pppoe.spdop.ru. [94.29.35.107]) by smtp.gmail.com with ESMTPSA id f4sm7953526ljg.37.2019.04.11.15.13.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 11 Apr 2019 15:13:29 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 1/4] memory: tegra: Fix missed registers values latching Date: Fri, 12 Apr 2019 01:12:47 +0300 Message-Id: <20190411221250.23233-2-digetx@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190411221250.23233-1-digetx@gmail.com> References: <20190411221250.23233-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some of Memory Controller registers are shadowed and require latching in order to copy assembly state into the active, MC_EMEM_ARB_CFG is one of these registers. Signed-off-by: Dmitry Osipenko --- drivers/memory/tegra/mc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index 0a53598d982f..60474597180b 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -51,6 +51,9 @@ #define MC_EMEM_ADR_CFG 0x54 #define MC_EMEM_ADR_CFG_EMEM_NUMDEV BIT(0) +#define MC_TIMING_CONTROL 0xfc +#define MC_TIMING_UPDATE BIT(0) + static const struct of_device_id tegra_mc_of_match[] = { #ifdef CONFIG_ARCH_TEGRA_2x_SOC { .compatible = "nvidia,tegra20-mc-gart", .data = &tegra20_mc_soc }, @@ -301,6 +304,9 @@ static int tegra_mc_setup_latency_allowance(struct tegra_mc *mc) writel(value, mc->regs + la->reg); } + /* latch new values */ + writel(MC_TIMING_UPDATE, mc->regs + MC_TIMING_CONTROL); + return 0; } -- 2.21.0