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| author | Jian-Hong Pan <jhp@endlessos.org> | 2021-06-23 06:28:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-14 18:00:01 +0300 |
| commit | 330381067976efb09d767c1fa8b4af92ca588440 (patch) | |
| tree | 4df06555f1413f66f466e04b23f2acf1540a2a26 /drivers/net/ethernet/broadcom/genet/bcmgenet.c | |
| parent | b95af3ccdec76af4026e7c60f1ad9c466f0b4c1c (diff) | |
| download | linux-330381067976efb09d767c1fa8b4af92ca588440.tar.xz | |
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 'drivers/net/ethernet/broadcom/genet/bcmgenet.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/genet/bcmgenet.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index fcca023f22e5..41f7f078cd27 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -4296,3 +4296,4 @@ MODULE_AUTHOR("Broadcom Corporation"); MODULE_DESCRIPTION("Broadcom GENET Ethernet controller driver"); MODULE_ALIAS("platform:bcmgenet"); MODULE_LICENSE("GPL"); +MODULE_SOFTDEP("pre: mdio-bcm-unimac"); |