target/linux/generic/backport-5.10/743-v5.16-0002-net-dsa-b53-Drop-BCM5301x-workaround-for-a-wrong-CPU.patch

   1 From b290c6384afabbca5ae6e2af72fb1b2bc37922be Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   3 Date: Thu, 16 Sep 2021 14:03:52 +0200
   4 Subject: [PATCH] net: dsa: b53: Drop BCM5301x workaround for a wrong CPU/IMP
   5  port
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 On BCM5301x port 8 requires a fixed link when used.
  11
  12 Years ago when b53 was an OpenWrt downstream driver (with configuration
  13 based on sometimes bugged NVRAM) there was a need for a fixup. In case
  14 of forcing fixed link for (incorrectly specified) port 5 the code had to
  15 actually setup port 8 link.
  16
  17 For upstream b53 driver with setup based on DT there is no need for that
  18 workaround. In DT we have and require correct ports setup.
  19
  20 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  21 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  22 Tested-by: Florian Fainelli <f.fainelli@gmail.com>
  23 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  24 ---
  25  drivers/net/dsa/b53/b53_common.c | 6 ------
  26  1 file changed, 6 deletions(-)
  27
  28 --- a/drivers/net/dsa/b53/b53_common.c
  29 +++ b/drivers/net/dsa/b53/b53_common.c
  30 @@ -1256,12 +1256,6 @@ static void b53_adjust_link(struct dsa_s
  31                                 return;
  32                         }
  33                 }
  34 -       } else if (is5301x(dev)) {
  35 -               if (port != dev->cpu_port) {
  36 -                       b53_force_port_config(dev, dev->cpu_port, 2000,
  37 -                                             DUPLEX_FULL, true, true);
  38 -                       b53_force_link(dev, dev->cpu_port, 1);
  39 -               }
  40         }
  41
  42         /* Re-negotiate EEE if it was enabled already */