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From: arinc9.unal@gmail.com
To: Sean Wang <sean.wang@mediatek.com>,
	Landen Chao <Landen.Chao@mediatek.com>,
	DENG Qingfang <dqfext@gmail.com>,
	Daniel Golle <daniel@makrotopia.org>,
	Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno 
	<angelogioacchino.delregno@collabora.com>,
	Russell King <linux@armlinux.org.uk>
Cc: "Arınç ÜNAL" <arinc.unal@arinc9.com>,
	"Richard van Schagen" <richard@routerhints.com>,
	"Richard van Schagen" <vschagen@cs.com>,
	"Frank Wunderlich" <frank-w@public-files.de>,
	"Bartel Eerdekens" <bartel.eerdekens@constell8.be>,
	erkin.bozoglu@xeront.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: [PATCH net-next 21/24] net: dsa: mt7530: force link-down on MACs before reset on MT7530
Date: Tue, 25 Apr 2023 11:29:30 +0300	[thread overview]
Message-ID: <20230425082933.84654-22-arinc.unal@arinc9.com> (raw)
In-Reply-To: <20230425082933.84654-1-arinc.unal@arinc9.com>

From: Arınç ÜNAL <arinc.unal@arinc9.com>

Force link-down on all MACs before internal reset. Let's follow suit commit
728c2af6ad8c ("net: mt7531: ensure all MACs are powered down before
reset").

Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
---
 drivers/net/dsa/mt7530.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 651c5803706b..0bd38323e2b6 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2203,6 +2203,10 @@ mt7530_setup(struct dsa_switch *ds)
 		return -EINVAL;
 	}
 
+	/* Force link-down on all MACs before internal reset */
+	for (i = 0; i < MT7530_NUM_PORTS; i++)
+		mt7530_write(priv, MT7530_PMCR_P(i), PMCR_FORCE_LNK);
+
 	/* Reset the switch through internal reset */
 	mt7530_write(priv, MT7530_SYS_CTRL,
 		     SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
-- 
2.37.2


  parent reply	other threads:[~2023-04-25  8:33 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-25  8:29 [PATCH net-next 00/24] net: dsa: MT7530, MT7531, and MT7988 improvements arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 01/24] net: dsa: mt7530: fix corrupt frames using trgmii on 40 MHz XTAL MT7621 arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 02/24] net: dsa: mt7530: add missing @p5_interface to mt7530_priv description arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 03/24] net: dsa: mt7530: use p5_interface_select as data type for p5_intf_sel arinc9.unal
2023-04-25 15:06   ` Daniel Golle
2023-04-25  8:29 ` [PATCH net-next 04/24] net: dsa: mt7530: properly support MT7531AE and MT7531BE arinc9.unal
2023-04-25 15:04   ` Daniel Golle
2023-04-26  8:12     ` Arınç ÜNAL
2023-04-26 13:07       ` Daniel Golle
2023-04-26 14:39         ` Vladimir Oltean
2023-04-26 16:15           ` Daniel Golle
2023-04-25  8:29 ` [PATCH net-next 05/24] net: dsa: mt7530: improve comments regarding port 5 and 6 arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 06/24] net: dsa: mt7530: read XTAL value from correct register arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 07/24] net: dsa: mt7530: improve code path for setting up port 5 arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 08/24] net: dsa: mt7530: do not run mt7530_setup_port5() if port 5 is disabled arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 09/24] net: dsa: mt7530: change p{5,6}_interface to p{5,6}_configured arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 10/24] net: dsa: mt7530: empty default case on mt7530_setup_port5() arinc9.unal
2023-04-25 15:13   ` Daniel Golle
2023-04-26  8:22     ` Arınç ÜNAL
2023-04-25  8:29 ` [PATCH net-next 11/24] net: dsa: mt7530: call port 6 setup from mt7530_mac_config() arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 12/24] net: dsa: mt7530: remove pad_setup function pointer arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 13/24] net: dsa: mt7530: move XTAL check to mt7530_setup() arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 14/24] net: dsa: mt7530: move enabling port 6 to mt7530_setup_port6() arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 15/24] net: dsa: mt7530: switch to if/else statements on mt7530_setup_port6() arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 16/24] net: dsa: mt7530: set TRGMII RD TAP if trgmii is being used arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 17/24] net: dsa: mt7530: move lowering port 5 RGMII driving to mt7530_setup() arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 18/24] net: dsa: mt7530: fix port capabilities for MT7988 arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 19/24] net: dsa: mt7530: remove .mac_port_config for MT7988 and make it optional arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 20/24] net: dsa: mt7530: set interrupt register only for MT7530 arinc9.unal
2023-04-25  8:29 ` arinc9.unal [this message]
2023-04-25  8:29 ` [PATCH net-next 22/24] net: dsa: mt7530: get rid of useless error returns on phylink code path arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 23/24] net: dsa: mt7530: rename p5_intf_sel and use only for MT7530 switch arinc9.unal
2023-04-25  8:29 ` [PATCH net-next 24/24] net: dsa: mt7530: run mt7530_pll_setup() only with 40 MHz XTAL arinc9.unal
2023-04-25 15:35 ` [PATCH net-next 00/24] net: dsa: MT7530, MT7531, and MT7988 improvements Jakub Kicinski

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