On Sat, Jan 16, 2021 at 04:59:14PM -0800, Jakub Kicinski wrote:

On Sat, 16 Jan 2021 10:12:21 +0100 Jan Kiszka wrote:

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On 06.11.20 10:43, Wong Vee Khee wrote:

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From: Voon Weifeng weifeng.voon@intel.com

Set all EHL/TGL phy_addr to -1 so that the driver will automatically detect it at run-time by probing all the possible 32 addresses.

Signed-off-by: Voon Weifeng weifeng.voon@intel.com Signed-off-by: Wong Vee Khee vee.khee.wong@intel.com

This fixes PHY detection on one of our EHL-based boards. Can this also be applied to stable 5.10?

Sure.

Greg, we'd like to request a backport of the following commit to 5.10.

commit bff6f1db91e330d7fba56f815cdbc412c75fe163 Author: Voon Weifeng weifeng.voon@intel.com Date: Fri Nov 6 17:43:41 2020 +0800

stmmac: intel: change all EHL/TGL to auto detect phy addr

Set all EHL/TGL phy_addr to -1 so that the driver will automatically detect it at run-time by probing all the possible 32 addresses. Signed-off-by: Voon Weifeng weifeng.voon@intel.com Signed-off-by: Wong Vee Khee vee.khee.wong@intel.com Link: https://lore.kernel.org/r/20201106094341.4241-1-vee.khee.wong@intel.com Signed-off-by: Jakub Kicinski kuba@kernel.org

It's relatively small, and Jan reports it makes his boards detect the PHY. The change went in via -next and into Linus's tree during the 5.11 merge window.

Now queued up, thanks.

greg k-h