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Date:      Mon, 15 Dec 2008 10:02:15 -0800
From:      Marcel Moolenaar <xcllnt@mac.com>
To:        Boris Samorodov <bsam@ipt.ru>
Cc:        freebsd-current@FreeBSD.org, rea-fbsd@codelabs.ru
Subject:   Re: Timeda 8-multiport adapter: only 2 ports available
Message-ID:  <88DFFDCD-7E38-4688-8D09-26C596FBB1A5@mac.com>
In-Reply-To: <80255390@bb.ipt.ru>
References:  <92804393@bb.ipt.ru> <26722819@bb.ipt.ru> <dgryeQY4GEVsW/%2Bo7hiHda0rsyw@Nv45r0f9gWT8HCu35qu0Xm2Zg98> <26719629@bb.ipt.ru> <19F75E66-0535-4982-9726-E2C0A03117EA@mac.com> <u86IhinAe98poBxKoJlfe3b/pNw@TT2a40bhZF2dUby2PPEihZ1bSVY> <94541668@bb.ipt.ru> <BE3580EA-BACC-4FF3-9683-CCDE48858D96@mac.com> <48144979@bb.ipt.ru> <548CF0A3-1B07-49DA-A177-6EA85FD8CF2F@mac.com> <94539778@bb.ipt.ru> <9939E942-A2FC-4240-BC14-527D45C187B7@mac.com> <94529078@bb.ipt.ru> <6581F3A3-63D4-4689-AAAB-951E9DDDD62C@mac.com> <92739012@bb.ipt.ru> <5504F326-A933-4850-985D-51E10ECFDA54@mac.com> <80255390@bb.ipt.ru>

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On Dec 15, 2008, at 9:49 AM, Boris Samorodov wrote:

> Marcel Moolenaar <xcllnt@mac.com> writes:
>
>> One last thing that we could try.
>
> I'll try this out and report back, thanks.
>
>> If the rclk for the
>> upper 6 ports is wrong, then the baudrate will not be
>> as programmed. For all ports we now have an rclk that's
>> 8 times the default (i.e. RCLK*8). See if the baudrate
>> is 8 times slower than what you specified.
>>
>> i.e. If you specified a baudrate of 115200, see if you
>> need to program the other side for 14400. You may want
>> to pick a baudrate that's yields a more standard rate
>> when divided by 8.
>>
>> If this works, then the upper 6 port have a standard
>> RCLK.
>
> As I undrestood from README for DOS, those ports may be
> initialized at high rate (8x?) so when BIOS reports 115200
> the card actually gives 900k. To return to normal speeds
> the card should be initialized accordingly.

Ok, this indicates that RCLK*8 is right.

At this time I'm out of ideas. We should just look at the
NetBSD or Linux driver...

Could you open a PR so that we can track this?

Thanks,

-- 
Marcel Moolenaar
xcllnt@mac.com






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