From patchwork Sat Jan 13 10:25:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= X-Patchwork-Id: 13518953 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA08BC4707C for ; Sat, 13 Jan 2024 10:27:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ep8Si7j09R7UGXU+yFnjEeh3IqqSHPOdHvG+mLdW0R0=; b=EgJ6s3iN3pJHXe 8huLiEXCLnnhKcjmFdqEnO0oVGo8+hlSNzaVK5bHl7TuPkCrRCAdC+u6vl5/VqqwSuTNvDCX61dYC 8cjjyci6+MoA9HOWuoZn4QCsQGLqQCTz1QLOQe/wOAWOLSLksdkl1NFHpH/cLcMDwJyYv7xSQQJec T5QYI4qDkusLwIKklNB4MsDsVKxYpvwnSVBJO7qFb+tXOHQ+ewYfq2H3bGhACvLacyiS/KQIOmzL8 LHmxY+iI1nBrCnVB1UfiwNGnbpWKXWv2AnlHRdDQeDGBF2TclwNXKQniN7o1mkGj5UBNJWXnPBGOJ 0AorbKSCQ1wMMf7zy/2w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rObDl-004tPu-28; Sat, 13 Jan 2024 10:26:33 +0000 Received: from relay3-d.mail.gandi.net ([217.70.183.195]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rObDg-004tMb-2x; Sat, 13 Jan 2024 10:26:30 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id 60BCE60004; Sat, 13 Jan 2024 10:26:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arinc9.com; s=gm1; t=1705141567; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xaf7A980b4L6Aj8H9mVZceUkci0b4MQj48JLLc3HlD4=; b=JPWSzPJb/ZJuXFOG6/qZJGuGYn1+1a6oWqS+MCC225SsMfF5fGk7whFKbpH7ZlwokZXZY7 LKBXVKboka681i6ubpxp9ZoTgXaoVd+8D/n23IjoYgzyripoMHq+6vMob+Z9KdUS/Mr1Gc Q0sRpowPtPfCAogrhIvrwUUIaH6yXOk0T003qXfq8NXJYAxkuNMhGiEjCkTcCZhhasd1Gd PSwtw75H8RkuUMMH42WPMWxASg8IUmXbznqgTaanGnp+gqMI2E+qaawsnXShwzrLRCw2Rh sV/JYSJdUCjnWu925pHZDgIsHN1fzNkw7ndYK3bfD/+V6i+Kf3Sp44p/oSpsxA== From: =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= To: =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= , Daniel Golle , Landen Chao , DENG Qingfang , Sean Wang , Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno Cc: mithat.guner@xeront.com, erkin.bozoglu@xeront.com, Luiz Angelo Daros de Luca , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [RFC PATCH net-next 5/8] net: dsa: mt7530: move enabling port 6 to mt7530_setup_port6() Date: Sat, 13 Jan 2024 13:25:26 +0300 Message-Id: <20240113102529.80371-6-arinc.unal@arinc9.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240113102529.80371-1-arinc.unal@arinc9.com> References: <20240113102529.80371-1-arinc.unal@arinc9.com> MIME-Version: 1.0 X-GND-Sasl: arinc.unal@arinc9.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240113_022629_087412_EBD7B119 X-CRM114-Status: GOOD ( 11.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Enable port 6 only when port 6 is being used. Update the comment on mt7530_setup() with a better explanation. Do not set MHWTRAP_MANUAL on mt7530_setup_port5() as it's already done on mt7530_setup() beforehand. Signed-off-by: Arınç ÜNAL Reviewed-by: Vladimir Oltean --- drivers/net/dsa/mt7530.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index d3e1e31ac8d0..3ce4e0bb04dd 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -420,6 +420,8 @@ mt7530_setup_port6(struct dsa_switch *ds, phy_interface_t interface) struct mt7530_priv *priv = ds->priv; u32 ncpo1, ssc_delta, trgint, xtal; + mt7530_clear(priv, MT7530_MHWTRAP, MHWTRAP_P6_DIS); + xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK; switch (interface) { @@ -910,7 +912,7 @@ static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface) val = mt7530_read(priv, MT7530_MHWTRAP); - val |= MHWTRAP_MANUAL | MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS; + val |= MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS; val &= ~MHWTRAP_P5_RGMII_MODE & ~MHWTRAP_PHY0_SEL; switch (priv->p5_intf_sel) { @@ -2250,9 +2252,11 @@ mt7530_setup(struct dsa_switch *ds) mt7530_rmw(priv, MT7530_TRGMII_RD(i), RD_TAP_MASK, RD_TAP(16)); - /* Enable port 6 */ + /* Directly access the PHY registers via C_MDC/C_MDIO. The bit that + * enables modifying the hardware trap must be set for this. + */ val = mt7530_read(priv, MT7530_MHWTRAP); - val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS; + val &= ~MHWTRAP_PHY_ACCESS; val |= MHWTRAP_MANUAL; mt7530_write(priv, MT7530_MHWTRAP, val);