openwrt/target/linux/generic/pending-5.15/796-net-dsa-mt7530-fix-10M-100M-speed-on-MT7988-switch.patch
Daniel Golle 4ae2f43b3a mediatek: fixes for Ethernet on MT7988 SoC
* fix switch ports with modes other than 1000M/Full
 * set 32-bit dma_coherent_mask to get PPE to work with 4 GiB of RAM
 * sync driver for built-in 1GE PHY with MediaTek SDK sources

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-02-01 01:01:44 +00:00

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From a444877c10a665cd8a869e6d37facdb89fd95f79 Mon Sep 17 00:00:00 2001
Message-ID: <a444877c10a665cd8a869e6d37facdb89fd95f79.1706070008.git.daniel@makrotopia.org>
From: Daniel Golle <daniel@makrotopia.org>
Date: Wed, 24 Jan 2024 04:17:11 +0000
Subject: [PATCH net] net: dsa: mt7530: fix 10M/100M speed on MT7988 switch
To: Arınç ÜNAL <arinc.unal@arinc9.com>,
Daniel Golle <daniel@makrotopia.org>,
DENG Qingfang <dqfext@gmail.com>,
Sean Wang <sean.wang@mediatek.com>,
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>,
netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Setup PMCR port register for actual speed and duplex on internally
connected PHYs of the MT7988 built-in switch. This fixes links with
speeds other than 1000M.
Fixes: ("110c18bfed414 net: dsa: mt7530: introduce driver for MT7988 built-in switch")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/dsa/mt7530.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2832,8 +2832,7 @@ static void mt753x_phylink_mac_link_up(s
/* MT753x MAC works in 1G full duplex mode for all up-clocked
* variants.
*/
- if (interface == PHY_INTERFACE_MODE_INTERNAL ||
- interface == PHY_INTERFACE_MODE_TRGMII ||
+ if (interface == PHY_INTERFACE_MODE_TRGMII ||
(phy_interface_mode_is_8023z(interface))) {
speed = SPEED_1000;
duplex = DUPLEX_FULL;