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| author |   David S. Miller <davem@davemloft.net> | 2020-01-23 21:17:13 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-23 21:17:13 +0100 |
| commit | 72b5917413e19529dd9495852fc10892f749c4ef (patch) | |
| tree | efe5bad889fccc2c8044619e568407517721017d /drivers/net/ethernet/freescale/fman/fman_memac.c | |
| parent | qlcnic: Fix CPU soft lockup while collecting firmware dump (diff) | |
| parent | net/fsl: treat fsl,erratum-a011043 (diff) | |
| download | linux-dev-72b5917413e19529dd9495852fc10892f749c4ef.tar.xz linux-dev-72b5917413e19529dd9495852fc10892f749c4ef.zip | |
Merge branch 'net-fsl-fman-address-erratum-A011043'
Madalin Bucur says:
====================
net: fsl/fman: address erratum A011043
This addresses a HW erratum on some QorIQ DPAA devices.
MDIO reads to internal PCS registers may result in having
the MDIO_CFG[MDIO_RD_ER] bit set, even when there is no
error and read data (MDIO_DATA[MDIO_DATA]) is correct.
Software may get false read error when reading internal
PCS registers through MDIO. As a workaround, all internal
MDIO accesses should ignore the MDIO_CFG[MDIO_RD_ER] bit.
When the issue was present, one could see such errors
during boot:
mdio_bus ffe4e5000: Error while reading PHY0 reg at 3.3
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/fman/fman_memac.c')
0 files changed, 0 insertions, 0 deletions