target/linux/generic/pending-5.15/796-net-dsa-mt7530-fix-10M-100M-speed-on-MT7988-switch.patch

   1 From a444877c10a665cd8a869e6d37facdb89fd95f79 Mon Sep 17 00:00:00 2001
   2 Message-ID: <a444877c10a665cd8a869e6d37facdb89fd95f79.1706070008.git.daniel@makrotopia.org>
   3 From: Daniel Golle <daniel@makrotopia.org>
   4 Date: Wed, 24 Jan 2024 04:17:11 +0000
   5 Subject: [PATCH net] net: dsa: mt7530: fix 10M/100M speed on MT7988 switch
   6 To: Arınç ÜNAL <arinc.unal@arinc9.com>,
   7     Daniel Golle <daniel@makrotopia.org>,
   8     DENG Qingfang <dqfext@gmail.com>,
   9     Sean Wang <sean.wang@mediatek.com>,
  10     Andrew Lunn <andrew@lunn.ch>,
  11     Florian Fainelli <f.fainelli@gmail.com>,
  12     Vladimir Oltean <olteanv@gmail.com>,
  13     David S. Miller <davem@davemloft.net>,
  14     Eric Dumazet <edumazet@google.com>,
  15     Jakub Kicinski <kuba@kernel.org>,
  16     Paolo Abeni <pabeni@redhat.com>,
  17     Matthias Brugger <matthias.bgg@gmail.com>,
  18     AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
  19     netdev@vger.kernel.org,
  20     linux-kernel@vger.kernel.org,
  21     linux-arm-kernel@lists.infradead.org,
  22     linux-mediatek@lists.infradead.org
  23
  24 Setup PMCR port register for actual speed and duplex on internally
  25 connected PHYs of the MT7988 built-in switch. This fixes links with
  26 speeds other than 1000M.
  27
  28 Fixes: ("110c18bfed414 net: dsa: mt7530: introduce driver for MT7988 built-in switch")
  29 Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  30 ---
  31  drivers/net/dsa/mt7530.c | 3 +--
  32  1 file changed, 1 insertion(+), 2 deletions(-)
  33
  34 --- a/drivers/net/dsa/mt7530.c
  35 +++ b/drivers/net/dsa/mt7530.c
  36 @@ -2832,8 +2832,7 @@ static void mt753x_phylink_mac_link_up(s
  37         /* MT753x MAC works in 1G full duplex mode for all up-clocked
  38          * variants.
  39          */
  40 -       if (interface == PHY_INTERFACE_MODE_INTERNAL ||
  41 -           interface == PHY_INTERFACE_MODE_TRGMII ||
  42 +       if (interface == PHY_INTERFACE_MODE_TRGMII ||
  43             (phy_interface_mode_is_8023z(interface))) {
  44                 speed = SPEED_1000;
  45                 duplex = DUPLEX_FULL;