[PATCH v2] mdio: aspeed: Fix "Link is Down" issue

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Fri Nov 26 03:00:10 AEDT 2021


This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba at kernel.org>:

On Thu, 25 Nov 2021 10:44:32 +0800 you wrote:
> The issue happened randomly in runtime.  The message "Link is Down" is
> popped but soon it recovered to "Link is Up".
> The "Link is Down" results from the incorrect read data for reading the
> PHY register via MDIO bus.  The correct sequence for reading the data
> shall be:
> 1. fire the command
> 2. wait for command done (this step was missing)
> 3. wait for data idle
> 4. read data from data register
> [...]

Here is the summary with links:
  - [v2] mdio: aspeed: Fix "Link is Down" issue

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