From nobody Thu Nov 14 04:46:47 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 006541B813; Sat, 13 Jan 2024 10:26:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arinc9.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arinc9.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=arinc9.com header.i=@arinc9.com header.b="JPWSzPJb" 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?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= To: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= , 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-GND-Sasl: arinc.unal@arinc9.com 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: Ar=C4=B1n=C3=A7 =C3=9CNAL 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 =3D ds->priv; u32 ncpo1, ssc_delta, trgint, xtal; =20 + mt7530_clear(priv, MT7530_MHWTRAP, MHWTRAP_P6_DIS); + xtal =3D mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK; =20 switch (interface) { @@ -910,7 +912,7 @@ static void mt7530_setup_port5(struct dsa_switch *ds, p= hy_interface_t interface) =20 val =3D mt7530_read(priv, MT7530_MHWTRAP); =20 - val |=3D MHWTRAP_MANUAL | MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS; + val |=3D MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS; val &=3D ~MHWTRAP_P5_RGMII_MODE & ~MHWTRAP_PHY0_SEL; =20 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)); =20 - /* 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 =3D mt7530_read(priv, MT7530_MHWTRAP); - val &=3D ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS; + val &=3D ~MHWTRAP_PHY_ACCESS; val |=3D MHWTRAP_MANUAL; mt7530_write(priv, MT7530_MHWTRAP, val); =20 --=20 2.40.1