From patchwork Wed Feb 26 12:55:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 1245023 X-Patchwork-Delegate: jagannadh.teki@gmail.com 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; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256 header.s=ti-com-17Q1 header.b=EeaJ1prS; 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 48SG8H4v5pz9sPR for ; Wed, 26 Feb 2020 23:58:55 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 385F08121E; Wed, 26 Feb 2020 13:57:52 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com 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; unprotected) header.d=ti.com header.i=@ti.com header.b="EeaJ1prS"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id EBD1980A03; Wed, 26 Feb 2020 13:57:04 +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,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) (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 917068100F for ; Wed, 26 Feb 2020 13:56:57 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=p.yadav@ti.com Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01QCuu9s065906; Wed, 26 Feb 2020 06:56:56 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1582721816; bh=1AE38loqhtpaukRogiqhS+MkjMjigWcNY9sPddq1H4U=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=EeaJ1prSAxIo8/1YeKrZ4HDIwgNy27ycWyf2IDJpiUwqPSmN98bEZ3+9N4wJoQl/A rrtQXstBdHdSCibVUeaJkcPGTchn8PNrpuDuMmAiswpWQAW/A0gYVu/qILoZWM2onK 1Nsav3iIPv5yLTW6UgyFXFhN9+MSmrCQ08OH80eM= Received: from DFLE111.ent.ti.com (dfle111.ent.ti.com [10.64.6.32]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01QCutnL094891; Wed, 26 Feb 2020 06:56:56 -0600 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 26 Feb 2020 06:56:14 -0600 Received: from localhost.localdomain (10.64.41.19) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Wed, 26 Feb 2020 06:56:14 -0600 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by localhost.localdomain (8.15.2/8.15.2) with ESMTP id 01QCu76G100370; Wed, 26 Feb 2020 06:56:12 -0600 From: Pratyush Yadav To: Jagan Teki , Vignesh Raghavendra CC: Pratyush Yadav , , Sekhar Nori Subject: [PATCH 02/15] spi: set mode bits for "spi-rx-dtr" and "spi-tx-dtr" Date: Wed, 26 Feb 2020 18:25:52 +0530 Message-ID: <20200226125606.22684-3-p.yadav@ti.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200226125606.22684-1-p.yadav@ti.com> References: <20200226125606.22684-1-p.yadav@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 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 0.102.2 at phobos.denx.de X-Virus-Status: Clean These two DT properties express DTR receive and transmit capabilities of a SPI flash and controller. Introduce two new mode bits: SPI_RX_DTR and SPI_TX_DTR which correspond to the new DT properties. Set these bits when the two corresponding properties are present in the device tree. Signed-off-by: Pratyush Yadav --- drivers/spi/spi-uclass.c | 9 +++++++++ include/spi.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/drivers/spi/spi-uclass.c b/drivers/spi/spi-uclass.c index 4a02d95a34..74e4b5b3ad 100644 --- a/drivers/spi/spi-uclass.c +++ b/drivers/spi/spi-uclass.c @@ -435,6 +435,7 @@ int spi_slave_ofdata_to_platdata(struct udevice *dev, { int mode = 0; int value; + bool dtr; plat->cs = dev_read_u32_default(dev, "reg", -1); plat->max_hz = dev_read_u32_default(dev, "spi-max-frequency", @@ -487,6 +488,14 @@ int spi_slave_ofdata_to_platdata(struct udevice *dev, break; } + dtr = dev_read_bool(dev, "spi-rx-dtr"); + if (dtr) + mode |= SPI_RX_DTR; + + dtr = dev_read_bool(dev, "spi-tx-dtr"); + if (dtr) + mode |= SPI_TX_DTR; + plat->mode = mode; return 0; diff --git a/include/spi.h b/include/spi.h index 852f570eaa..64558a5145 100644 --- a/include/spi.h +++ b/include/spi.h @@ -32,6 +32,8 @@ #define SPI_RX_QUAD BIT(13) /* receive with 4 wires */ #define SPI_TX_OCTAL BIT(14) /* transmit with 8 wires */ #define SPI_RX_OCTAL BIT(15) /* receive with 8 wires */ +#define SPI_TX_DTR BIT(16) /* transmit in DTR protocol */ +#define SPI_RX_DTR BIT(17) /* receive in DTR protocol */ /* Header byte that marks the start of the message */ #define SPI_PREAMBLE_END_BYTE 0xec