From patchwork Thu Nov 18 12:08:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Simek X-Patchwork-Id: 1556600 X-Patchwork-Delegate: monstr@monstr.eu Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=monstr-eu.20210112.gappssmtp.com header.i=@monstr-eu.20210112.gappssmtp.com header.a=rsa-sha256 header.s=20210112 header.b=SpdRnXYX; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4Hvz971rJYz9s5P for ; Thu, 18 Nov 2021 23:08:43 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 389F282F75; Thu, 18 Nov 2021 13:08:38 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=fail (p=none dis=none) header.from=xilinx.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=monstr-eu.20210112.gappssmtp.com header.i=@monstr-eu.20210112.gappssmtp.com header.b="SpdRnXYX"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 4EBC682F67; Thu, 18 Nov 2021 13:08:36 +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=-1.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,SPF_HELO_NONE,SPF_NONE autolearn=no autolearn_force=no version=3.4.2 Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 7522E82F67 for ; Thu, 18 Nov 2021 13:08:32 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=fail (p=none dis=none) header.from=xilinx.com Authentication-Results: phobos.denx.de; spf=none smtp.mailfrom=monstr@monstr.eu Received: by mail-wr1-x42c.google.com with SMTP id a9so11094883wrr.8 for ; Thu, 18 Nov 2021 04:08:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monstr-eu.20210112.gappssmtp.com; s=20210112; h=sender:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=YsH6alrehVfugTQe7a1YESB1tAcKQjocCA2uWMUzeiA=; b=SpdRnXYXfT4DqHKFZKzD5Bck3ZgNQNXtjaJ8+AJAqLEljgqwv6ixd4ifdCssPHsoCX ux2HOgwgWvi5DXI28PQ+UeQ0ZKe4NLz1jss+B/Ok861EdKN9Hi+EGspsHv2SVYgvejLr QwdKSxYjvur9IlyCmcJNy+S12J9fTPSHtkjfwQf0cBUMGEWeY3xwuS87uKzANi78T2Zd 6jt/WwgJAejY/9lXGo62hK6QisYuTx4Z6K+4koZ5vZ6VYW7brtl91lNbeP7azYjXT9ml nW7KctL273rmZrS6ejLx1lVGhUF6MePI9+AeRBjZLku6+ZACtwY8h2XCyGopjG2w28po CcWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :mime-version:content-transfer-encoding; bh=YsH6alrehVfugTQe7a1YESB1tAcKQjocCA2uWMUzeiA=; b=ML2k/59nrUHCYB02FgPGo2aHWE9gmd1SaAa86gMB8ikwrS7LcMTUQMmRWt2cpgpMBL bd8h+lGSTvGZ4LkU/FJSOcayw8quEG1+NMlbxngGig3NudU9p6bHh6lwo72q1FYUTPOK ZkWAwcZZmnmzLsDEMrfl76nKW0N9Uc6T7AuYmMTVGtQ7q4kmoyH+t+Hiv0VCaqZCRa22 eG2QJHAFEYoXI+5PW4evH1E+SIpk2cXNsKqdg6JcFJFsd/NkfPp2xmzYdqIxgXKS4X2f 59Sflfn9+UmEqapkJjNUD+kan1dHlzm7FSLMZOxPfg/9VNIXTjrHvl1gohKsFc7ujERb bYLg== X-Gm-Message-State: AOAM532HQWNrau/z6MhXJTjkwTm/insyDTBdOSs5gpHb2p/qvjVov+OC 97Z+JpjPZ6IV2nL1MnvZTaTXMsM3G6rHdQ== X-Google-Smtp-Source: ABdhPJwzLQ3qOxiA6ifoyvQ8X7YIUH6vkHcOoQYZbfUAqPf2o/cu4UqO9tXCpmXHWGMG7r3mrqBNgA== X-Received: by 2002:a5d:4575:: with SMTP id a21mr29519226wrc.193.1637237311747; Thu, 18 Nov 2021 04:08:31 -0800 (PST) Received: from localhost ([2a02:768:2307:40d6::45a]) by smtp.gmail.com with ESMTPSA id d1sm2817775wrz.92.2021.11.18.04.08.31 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 18 Nov 2021 04:08:31 -0800 (PST) From: Michal Simek To: u-boot@lists.denx.de, git@xilinx.com Cc: Joe Hershberger , Ramon Fried Subject: [PATCH] net: zynq: Add support for GEM reset Date: Thu, 18 Nov 2021 13:08:30 +0100 Message-Id: <43cd2fe86b51f1377a2cebb15f0f7c50be1c78b3.1637237308.git.michal.simek@xilinx.com> X-Mailer: git-send-email 2.33.1 MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.35 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 0.103.2 at phobos.denx.de X-Virus-Status: Clean Perform reset before core initialization. Signed-off-by: Michal Simek --- drivers/net/zynq_gem.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index 91957757727d..5cbe8d28304b 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -217,6 +218,7 @@ struct zynq_gem_priv { bool int_pcs; bool dma_64bit; u32 clk_en_info; + struct reset_ctl_bulk resets; }; static int phy_setup_op(struct zynq_gem_priv *priv, u32 phy_addr, u32 regnum, @@ -688,12 +690,36 @@ static int zynq_gem_miiphy_write(struct mii_dev *bus, int addr, int devad, return phywrite(priv, addr, reg, value); } +static int zynq_gem_reset_init(struct udevice *dev) +{ + struct zynq_gem_priv *priv = dev_get_priv(dev); + int ret; + + ret = reset_get_bulk(dev, &priv->resets); + if (ret == -ENOTSUPP || ret == -ENOENT) + return 0; + else if (ret) + return ret; + + ret = reset_deassert_bulk(&priv->resets); + if (ret) { + reset_release_bulk(&priv->resets); + return ret; + } + + return 0; +} + static int zynq_gem_probe(struct udevice *dev) { void *bd_space; struct zynq_gem_priv *priv = dev_get_priv(dev); int ret; + ret = zynq_gem_reset_init(dev); + if (ret) + return ret; + /* Align rxbuffers to ARCH_DMA_MINALIGN */ priv->rxbuffers = memalign(ARCH_DMA_MINALIGN, RX_BUF * PKTSIZE_ALIGN); if (!priv->rxbuffers)