From patchwork Fri Feb 19 16:11:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 1442360 X-Patchwork-Delegate: sr@denx.de Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.a=rsa-sha256 header.s=default header.b=c/g01AgU; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DhxVx5cgrz9sCD for ; Sat, 20 Feb 2021 03:15:05 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 697E6828C3; Fri, 19 Feb 2021 17:13:10 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.b="c/g01AgU"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 8DDB18283B; Fri, 19 Feb 2021 17:12:05 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,SPF_HELO_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from mail.nic.cz (lists.nic.cz [IPv6:2001:1488:800:400::400]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 8D21F8284C for ; Fri, 19 Feb 2021 17:11:49 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=marek.behun@nic.cz Received: from dellmb.labs.office.nic.cz (unknown [IPv6:2001:1488:fffe:6:8982:ed8c:62b1:c0c8]) by mail.nic.cz (Postfix) with ESMTPSA id 31EC8140CA2; Fri, 19 Feb 2021 17:11:49 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1613751109; bh=BZGjiqQC2gsLMbRNzl247/GDaUzzrktzTQvXZxU8nYw=; h=From:To:Date; b=c/g01AgU4hadpbrHycHei7jRkXP84FLd/y/ze58SBvQWTXQI2keM0nFXGyyS0/L6V HCefi++ZCCwhJ6ujIam+s/l0p3XTpQ84zQcgpB74kyUFfl3XZ/Hy8y47fwyB2wxk0S 022/YTMjzNbGKpGZGNL54mM63hgxKJLyso1YIPnI= From: =?utf-8?q?Marek_Beh=C3=BAn?= To: Stefan Roese Cc: u-boot@lists.denx.de, Chris Packham , Chris Packham , Baruch Siach , =?utf-8?q?Pavol_Roh=C3=A1r?= , Moti Buskila , Nadav Haklai , Kostya Porotchkin , =?utf-8?q?Marek_Beh=C3=BA?= =?utf-8?q?n?= Subject: [PATCH u-boot-marvell v2 09/18] ddr: marvell: a38x: allow board specific ODT configuration Date: Fri, 19 Feb 2021 17:11:17 +0100 Message-Id: <20210219161126.3523-10-marek.behun@nic.cz> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210219161126.3523-1-marek.behun@nic.cz> References: <20210219161126.3523-1-marek.behun@nic.cz> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean From: Baruch Siach commit 2d3b9437cf38c06c4330e0de07f29476197f5e04 upstream. The ODT enable heuristic based on active chip-selects is not always correct. Some board might use two chip-selects, but have only one ODT line connected. Allow board specific mv_ddr_topology_map to directly set the ODT configuration register value. Signed-off-by: Baruch Siach Reviewed-by: Moti Buskila Reviewed-by: Nadav Haklai Reviewed-by: Kostya Porotchkin Signed-off-by: Marek Behún Tested-by: Chris Packham --- drivers/ddr/marvell/a38x/ddr3_init.c | 5 +++++ drivers/ddr/marvell/a38x/ddr_topology_def.h | 3 +++ 2 files changed, 8 insertions(+) diff --git a/drivers/ddr/marvell/a38x/ddr3_init.c b/drivers/ddr/marvell/a38x/ddr3_init.c index a971cc155a..7488770268 100644 --- a/drivers/ddr/marvell/a38x/ddr3_init.c +++ b/drivers/ddr/marvell/a38x/ddr3_init.c @@ -104,6 +104,7 @@ int ddr3_init(void) static int mv_ddr_training_params_set(u8 dev_num) { struct tune_train_params params; + struct mv_ddr_topology_map *tm = mv_ddr_topology_map_get(); int status; u32 cs_num; int ck_delay; @@ -136,6 +137,10 @@ static int mv_ddr_training_params_set(u8 dev_num) if (ck_delay > 0) params.ck_delay = ck_delay; + /* Use platform specific override ODT value */ + if (tm->odt_config) + params.g_odt_config = tm->odt_config; + status = ddr3_tip_tune_training_params(dev_num, ¶ms); if (MV_OK != status) { printf("%s Training Sequence - FAILED\n", ddr_type); diff --git a/drivers/ddr/marvell/a38x/ddr_topology_def.h b/drivers/ddr/marvell/a38x/ddr_topology_def.h index 342c2cf451..3991fec272 100644 --- a/drivers/ddr/marvell/a38x/ddr_topology_def.h +++ b/drivers/ddr/marvell/a38x/ddr_topology_def.h @@ -125,6 +125,9 @@ struct mv_ddr_topology_map { /* electrical parameters */ unsigned int electrical_data[MV_DDR_EDATA_LAST]; + /* ODT configuration */ + u32 odt_config; + /* Clock enable mask */ u32 clk_enable;