Ioana Ciornei 64a0fb4cc3 net: memac_phy: add a timeout to MDIO operations ...

We have encountered circumstances when a board design does not include
pull-up resistors on the external MDIO buses which are not used. This
leads to the MDIO data line not being pulled-up, thus the MDIO controller
will always see the line as busy.

Without a timeout in the MDIO bus driver, the execution is stuck in an
infinite loop when any access is initiated on that external bus.

Add a timeout in the driver so that we are protected in this
circumstance. This is similar to what is being done in the Linux
xgmac_mdio driver.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>

2021-02-08 14:01:14 +05:30

..

b4860.c

env: Move env_get_f() to env.h

2019-08-11 16:43:41 -04:00

dtsec.c

common: Drop linux/delay.h from common header

2020-05-18 21:19:23 -04:00

eth.c

dm: core: Access device ofnode through functions

2021-01-05 12:24:41 -07:00

fdt.c

common: Drop image.h from common header

2020-05-18 17:33:33 -04:00

fm.c

dm: treewide: Rename auto_alloc_size members to be shorter

2020-12-13 08:00:25 -07:00

fm.h

driver: net: fm: add DM ETH support

2020-04-29 11:10:54 +05:30

init.c

treewide: convert bd_t to struct bd_info by coccinelle

2020-07-17 09:30:13 -04:00

ls1043.c

armv8/ls1043ardb: RGMII ports require internal delay

2020-03-30 08:06:52 +05:30

ls1046.c

armv8/ls1046ardb: RGMII ports require internal delay

2020-03-30 08:06:52 +05:30

Makefile

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

memac_phy.c

net: memac_phy: add a timeout to MDIO operations

2021-02-08 14:01:14 +05:30

memac.c

driver: net: fm: add support for XFI

2020-09-24 20:57:32 +05:30

p1023.c

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

p4080.c

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

p5020.c

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

p5040.c

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

t1024.c

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

t1040.c

powerpc: t1040: Correct RCW EC2 settings

2018-10-29 13:19:43 -07:00

t2080.c

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

t4240.c

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07 09:34:12 -04:00

tgec_phy.c

treewide: convert bd_t to struct bd_info by coccinelle

2020-07-17 09:30:13 -04:00

tgec.c

common: Drop linux/delay.h from common header

2020-05-18 21:19:23 -04:00