[PATCH v2] net: fec: fix MDIO probing for some FEC hardware blocks

2020-10-28 Thread Greg Ungerer
Some (apparently older) versions of the FEC hardware block do not like the MMFR register being cleared to avoid generation of MII events at initialization time. The action of clearing this register results in no future MII events being generated at all on the problem block. This means the probing o

Re: [PATCH v2] net: fec: fix MDIO probing for some FEC hardware blocks

2020-10-29 Thread Andrew Lunn
On Wed, Oct 28, 2020 at 03:22:32PM +1000, Greg Ungerer wrote: > Some (apparently older) versions of the FEC hardware block do not like > the MMFR register being cleared to avoid generation of MII events at > initialization time. The action of clearing this register results in no > future MII events

Re: [PATCH v2] net: fec: fix MDIO probing for some FEC hardware blocks

2020-10-30 Thread Clemens Gruber
On Wed, Oct 28, 2020 at 03:22:32PM +1000, Greg Ungerer wrote: > Some (apparently older) versions of the FEC hardware block do not like > the MMFR register being cleared to avoid generation of MII events at > initialization time. The action of clearing this register results in no > future MII events

Re: [PATCH v2] net: fec: fix MDIO probing for some FEC hardware blocks

2020-10-30 Thread Jakub Kicinski
On Fri, 30 Oct 2020 01:02:47 +0100 Andrew Lunn wrote: > On Wed, Oct 28, 2020 at 03:22:32PM +1000, Greg Ungerer wrote: > > Some (apparently older) versions of the FEC hardware block do not like > > the MMFR register being cleared to avoid generation of MII events at > > initialization time. The acti

RE: [EXT] [PATCH v2] net: fec: fix MDIO probing for some FEC hardware blocks

2020-10-28 Thread Andy Duan
From: Greg Ungerer Sent: Wednesday, October 28, 2020 1:23 PM > Some (apparently older) versions of the FEC hardware block do not like the > MMFR register being cleared to avoid generation of MII events at > initialization > time. The action of clearing this register results in no future MII even