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| author | Jian-Hong Pan <jhp@endlessos.org> | 2021-06-23 11:28:03 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 16:15:51 +0200 |
| commit | 8d4032690ae961cf8a8ce7b8da7a5fdb84f5e470 (patch) | |
| tree | de672185d289415ded411d404bceaf8b24ea00a3 /mm | |
| parent | 2f001552df5e3e183ed80e1fc60fcbd7698b0904 (diff) | |
net: bcmgenet: Fix attaching to PYH failed on RPi 4B
[ Upstream commit b2ac9800cfe0f8da16abc4e74e003440361c112e ]
The Broadcom UniMAC MDIO bus from mdio-bcm-unimac module comes too late.
So, GENET cannot find the ethernet PHY on UniMAC MDIO bus. This leads
GENET fail to attach the PHY as following log:
bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
...
could not attach to PHY
bcmgenet fd580000.ethernet eth0: failed to connect to PHY
uart-pl011 fe201000.serial: no DMA platform data
libphy: bcmgenet MII bus: probed
...
unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus
This patch adds the soft dependency to load mdio-bcm-unimac module
before genet module to avoid the issue.
Fixes: 9a4e79697009 ("net: bcmgenet: utilize generic Broadcom UniMAC MDIO controller driver")
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=213485
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions