netdev - [PATCH 0/7] net: dsa: mt7530: fix port 5 phylink, phy muxing, and port 6

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Date:   Sun, 26 Mar 2023 17:08:11 +0300
From:   arinc9.unal@...il.com
To:     Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Russell King <linux@...linux.org.uk>,
        René van Dorst <opensource@...rst.com>
Cc:     Russell King <rmk+kernel@...linux.org.uk>,
        Landen Chao <landen.chao@...iatek.com>,
        Ilya Lipnitskiy <ilya.lipnitskiy@...il.com>,
        Richard van Schagen <richard@...terhints.com>,
        Richard van Schagen <vschagen@...com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Arınç ÜNAL <arinc.unal@...nc9.com>,
        erkin.bozoglu@...ont.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH 0/7] net: dsa: mt7530: fix port 5 phylink, phy muxing, and port 6

Hello!

This patch series is mainly focused on fixing the support for port 5 and
setting up port 6.

The only missing piece to properly support port 5 as a CPU port is the
fixes [0] [1] [2] from Richard.

Russell, looking forward to your review regarding phylink.

I have very thoroughly tested the patch series with every possible mode to
use. I'll let the name of the dtb files speak for themselves.

MT7621 Unielec:

only-gmac0-mt7621-unielec-u7621-06-16m.dtb
rgmii-only-gmac0-mt7621-unielec-u7621-06-16m.dtb
only-gmac1-mt7621-unielec-u7621-06-16m.dtb
gmac0-and-gmac1-mt7621-unielec-u7621-06-16m.dtb
phy0-muxing-mt7621-unielec-u7621-06-16m.dtb
phy4-muxing-mt7621-unielec-u7621-06-16m.dtb
port5-as-user-mt7621-unielec-u7621-06-16m.dtb

tftpboot 0x80008000 mips-uzImage.bin; tftpboot 0x83000000 mips-rootfs.cpio.uboot; tftpboot 0x83f00000 $dtb; bootm 0x80008000 0x83000000 0x83f00000

MT7623 Bananapi:

only-gmac0-mt7623n-bananapi-bpi-r2.dtb
rgmii-only-gmac0-mt7623n-bananapi-bpi-r2.dtb
only-gmac1-mt7623n-bananapi-bpi-r2.dtb
gmac0-and-gmac1-mt7623n-bananapi-bpi-r2.dtb
phy0-muxing-mt7623n-bananapi-bpi-r2.dtb
phy4-muxing-mt7623n-bananapi-bpi-r2.dtb
port5-as-user-mt7623n-bananapi-bpi-r2.dtb

tftpboot 0x80008000 arm-uImage; tftpboot 0x83000000 arm-rootfs.cpio.uboot; tftpboot 0x83f00000 $dtb; bootm 0x80008000 0x83000000 0x83f00000

Current CPU ports setup of MT7530:

mt7530_setup()
-> mt7530_setup_port5()

mt753x_phylink_mac_config()
-> mt753x_mac_config()
   -> mt7530_mac_config()
      -> mt7530_setup_port5()
-> mt753x_pad_setup()
   -> mt7530_pad_clk_setup() sets up port 6, rename to mt7530_setup_port6()

How it will be with the patch series:

mt7530_setup()
-> mt7530_setup_port5() runs if the port is not used as a CPU or user port

mt753x_phylink_mac_config()
-> mt753x_mac_config()
   -> mt7530_mac_config()
      -> mt7530_setup_port5()
      -> mt7530_setup_port6()

CPU ports setup of MT7531 for reference:

mt7531_setup()
-> mt753x_cpu_port_enable()
   -> mt7531_cpu_port_config()
      -> mt7531_mac_config()
         -> mt7531_rgmii_setup()
         -> mt7531_sgmii_setup_mode_an()
         -> etc.

mt753x_phylink_mac_config()
-> mt753x_mac_config()
   -> mt7531_mac_config()
      -> mt7531_rgmii_setup()
      -> mt7531_sgmii_setup_mode_an()
      -> etc.

[0] https://lore.kernel.org/netdev/20230212213949.672443-1-richard@routerhints.com/
[1] https://lore.kernel.org/netdev/20230212215152.673221-1-richard@routerhints.com/
[2] https://lore.kernel.org/netdev/20230212214027.672501-1-richard@routerhints.com/

Arınç

Arınç ÜNAL (7):
  net: dsa: mt7530: fix comments regarding port 5 and 6 for both switches
  net: dsa: mt7530: fix phylink for port 5 and fix port 5 modes
  net: dsa: mt7530: do not run mt7530_setup_port5() if port 5 is disabled
  net: dsa: mt7530: set both CPU port interfaces to PHY_INTERFACE_MODE_NA
  net: dsa: mt7530: set up port 5 before CPU ports are enabled
  net: dsa: mt7530: call port 6 setup from mt7530_mac_config()
  net: dsa: mt7530: remove pad_setup function pointer

 drivers/net/dsa/mt7530.c | 154 +++++++++++++++++++-----------------------
 drivers/net/dsa/mt7530.h |   3 -
 2 files changed, 70 insertions(+), 87 deletions(-)