From patchwork Mon Jan 4 16:36:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 562458 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id BA29A1402C4 for ; Tue, 5 Jan 2016 03:36:45 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=yQYpTa/C; dkim-atps=neutral Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 20F954B792; Mon, 4 Jan 2016 17:36:41 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t7HuYNOTh6_r; Mon, 4 Jan 2016 17:36:41 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 6C3A34B794; Mon, 4 Jan 2016 17:36:37 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id B9F4E4B6F3 for ; Mon, 4 Jan 2016 17:36:33 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wcSpqyCMpYRz for ; Mon, 4 Jan 2016 17:36:33 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail-yk0-f194.google.com (mail-yk0-f194.google.com [209.85.160.194]) by theia.denx.de (Postfix) with ESMTPS id 5C28A4B6E3 for ; Mon, 4 Jan 2016 17:36:29 +0100 (CET) Received: by mail-yk0-f194.google.com with SMTP id y10so13316876ykf.0 for ; Mon, 04 Jan 2016 08:36:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=jNkVlGKajosikaUBgfXI8uBOnDtFS58+zHjLSFGZIcM=; b=yQYpTa/CjaSLWQ6XqRxfhELF6+wLNJO2wWjKSvRA3owwxWZWSlP+g+6AJcqChG86nh irSGvBl9EJbqA0Au5zU2xvRmzxoq1Gya93yHSFFSTrbiFFFk1y9t2Ijscpkw7+LBA2tk VXm9fxudx/vc6b6ahu2kDEE/5UP08zEJcFGQA1AhupAOFWXpwvZm86okibvCPPAuSSOv 3rxN9R+/Uws9/yvafrLu/naaMHWn70vhG0qNXIPJZl4cJ6hBJM7f7GGrINyZ2RFfSdiR VXTZ0RfSaiFda5JCIKjIxh2YuKpXjjzWiLynBwkNESh5tvpy7VK/7EvgrCQfWuB5dLK3 mUuw== X-Received: by 10.13.218.129 with SMTP id c123mr71358318ywe.4.1451925388365; Mon, 04 Jan 2016 08:36:28 -0800 (PST) Received: from localhost.localdomain ([187.64.228.119]) by smtp.gmail.com with ESMTPSA id b126sm74987889ywd.3.2016.01.04.08.36.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 04 Jan 2016 08:36:27 -0800 (PST) From: Fabio Estevam To: sbabic@denx.de Date: Mon, 4 Jan 2016 14:36:18 -0200 Message-Id: <1451925378-14121-2-git-send-email-festevam@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1451925378-14121-1-git-send-email-festevam@gmail.com> References: <1451925378-14121-1-git-send-email-festevam@gmail.com> Cc: Fabio Estevam , u-boot@lists.denx.de, jon.nettleton@gmail.com Subject: [U-Boot] [PATCH 2/2] mx6cuboxi: Make Ethernet functional X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Fabio Estevam Since commit 59370f3fcd1350 ("net: phy: delay only if reset handler is registered") Ethernet is no longer functional: Booting from net ... FEC Waiting for PHY auto negotiation to complete......... TIMEOUT ! BOOTP broadcast 1 BOOTP broadcast 2 BOOTP broadcast 3 BOOTP broadcast 4 This commit does not have an issue in itself, but it revelead a problem with the Ethernet initialization. Configure the AR8035 PHY in the same manner as done in mx6sabresd and wandboard, so that we can get a reliable Ethernet operation. Signed-off-by: Fabio Estevam Tested-by: Tom Rini --- board/solidrun/mx6cuboxi/mx6cuboxi.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c index 20faffc..3bb7573 100644 --- a/board/solidrun/mx6cuboxi/mx6cuboxi.c +++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c @@ -147,8 +147,33 @@ static void setup_iomux_enet(void) gpio_set_value(ETH_PHY_RESET, 1); } +static int mx6_rgmii_rework(struct phy_device *phydev) +{ + unsigned short val; + + /* Enable AR8035 ouput a 125MHz clk from CLK_25M */ + phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); + phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); + phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); + + val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe); + val &= 0xffe3; + val |= 0x18; + phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val); + + /* introduce tx clock delay */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5); + val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); + val |= 0x0100; + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val); + + return 0; +} + int board_phy_config(struct phy_device *phydev) { + mx6_rgmii_rework(phydev); + if (phydev->drv->config) phydev->drv->config(phydev);