commit 035d33e7db69d2657aeea52fde1ef7890132a42f
author developer <developer@mediatek.com> Thu Feb 09 22:24:46 2023 +0800
committer developer <developer@mediatek.com> Mon Feb 13 16:53:40 2023 +0800
tree ec80002b1af1001c95468f446191192b6d17a6c0
parent f06ced4ea5bc15e669747d1f80c91d66272ba998

[][kernel][common][eth][Add PHYA power down sanity check to SGMII initial sequence]

[Description]
Add PHYA power down sanity check to SGMII initial sequence.

When we configure phylink as fixed-link mode, the kernel will
call mac_config() to initial SGMII several times during the boot
procedure. This behavior might cause SGMII link down.
Therefore, we add a PHYA power down sanity check that make sure
PHYA is powered down when needed.

If without this patch, SGMII might link down after system bring up.

[Release-log]
N/A


Change-Id: Ie2f52852d055ef721d2cb380115644f2d80729ad
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7117100