writing to mac,bbp or rf registers not supported?

[Marcelo Tosatti]

On Wed, Nov 29, 2006 at 05:05:33AM -0800, Ronak Chokshi wrote:
> Marcelo,
> Have you tried writing to any other MAC, BBP, RF register? What are the
> other registers that you have tried writing?

Ronak,

I've only tried these three. As far as I can tell there is no support
for any other register access.

There are some offsets of the BBP register which retain written values
(don't recall which offset, board is temporarily unavailable).

Were written values to MAC register supposed to be retained?

One point here is that the meaning of these registers is not documented
anywhere, which is unfortunate (ie. no one except Marvell can easily
understand whats going on).

These issues were present before, and this is a rather specialized
debugging feature, so I don't consider it high priority, but still.

> Ronak
> 
> -----Original Message-----
> From: Marcelo Tosatti [mailto:marcelo at kvack.org] 
> Sent: Tuesday, November 28, 2006 11:11 PM
> To: Ronak Chokshi; Alan Cunningham
> Cc: libertas-dev at lists.infradead.org
> Subject: writing to mac,bbp or rf registers not supported?
> 
> Hi Ronak,
> 
> Is the write operation to the MAC, BBP or RF registers supported?
> 
> Apparently it does not work, since the written values are not retained:
> 
> -bash-3.1# /home/marcelo/wlanconfig eth0 rdmac 0x0
> Driver build with Wireless Extension 21
> MAC[0x0000] = 0x0033fa05
> -bash-3.1# /home/marcelo/wlanconfig eth0 wrmac 0x0 0xffffffff
> Driver build with Wireless Extension 21
> Writing[ 2255.598546] 00  MAC Register 0x01 0000 with 0xffff00 ffff
> 00 00 ff ff ff ff
> MAC[0x0000] = 0xffffffff
> -bash-3.1# /home/marcelo/wlanconfig eth0 rdmac 0x0
> Driver build with Wireless Extension 21
> MAC[0x0000] = 0x0033fa05
> 
> Any clues are appreciated.