[U-Boot] [PATCH] mvgbe: enable the reception of packets with an odd number of preamble nibbles

Prafulla Wadaskar prafulla at marvell.com
Wed Apr 13 16:11:25 CEST 2011



> -----Original Message-----
> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de]
> On Behalf Of Wolfgang Denk
> Sent: Wednesday, April 13, 2011 12:20 AM
> To: Klaus Flittner
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] [PATCH] mvgbe: enable the reception of packets
> with an odd number of preamble nibbles
> 
> Dear Klaus Flittner,
> 
> In message <20110131204025.1ffb0391 at earth.lan> you wrote:
> > With the current hardware initialisation of the driver all packets
> with
> > an odd number of preamble nibbles are dropped. Some switches seem to
> > send all packets with such an preamble.
> >
> > According to the functional specifications of the marvell 88F6180,
> > 6190, 6192 and 6281 the reception of such packets can be enabled by
> > setting bit 22 in register PSC1.

Klaus Flittner

Do you thing setting this by default will not disturb functionality on other hardware? If so, how about encapsulating it in #ifdef with SYS_CONFIG_xx ?

Regards..
Prafulla . .


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