target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch

   1 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   2 Date: Tue, 16 Feb 2021 00:06:35 +0100
   3 Subject: [PATCH] net: dsa: bcm_sf2: keep GPHY enabled on the BCM4908
   4
   5 Trying to access disabled PHY results in MDIO_READ_FAIL and:
   6 [   11.962886] brcm-sf2 80080000.switch wan: configuring for phy/internal link mode
   7 [   11.972500] 8021q: adding VLAN 0 to HW filter on device wan
   8 [   11.980205] ------------[ cut here ]------------
   9 [   11.984885] WARNING: CPU: 0 PID: 7 at phy_error+0x10/0x58
  10
  11 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  12 ---
  13  drivers/net/dsa/bcm_sf2.c | 6 ++++++
  14  1 file changed, 6 insertions(+)
  15
  16 --- a/drivers/net/dsa/bcm_sf2.c
  17 +++ b/drivers/net/dsa/bcm_sf2.c
  18 @@ -1333,6 +1333,12 @@ static int bcm_sf2_sw_probe(struct platf
  19                  priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff,
  20                  priv->irq0, priv->irq1);
  21
  22 +       /* BCM4908 has 5 GPHYs which means bcm_sf2_port_setup() will not enable
  23 +        * GPHY when needed. Leave it enabled here.
  24 +        */
  25 +       if (priv->type == BCM4908_DEVICE_ID)
  26 +               bcm_sf2_gphy_enable_set(priv->dev->ds, true);
  27 +
  28         return 0;
  29
  30  out_mdio: