Messages in this thread | | | Date | Thu, 06 Feb 1997 17:39:20 -0800 | From | Marcio Saito <> | Subject | Re: Cyclom 16Y on pentium 200Mhz |
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Arnaldo.
For faster response, next time, please send configuration/ installation questions about Cyclades products to <support@cyclades.com>.
Arnaldo Carvalho de Melo wrote: > Do you received any report on problems using a cyclom 16Y on a pentium > 200 Mhz???
No, there are no known compatibility problems between the Cyclom-Ye and any motherboard (I'm assuming you are refering to the Cyclom-Ye with 16 ports and not to the obsolete Cyclom-16Y).
> We put together a system using linux kernel 2.0.27 (the one > that came in RedHat 4.1) a Adaptec 2940AU PCI SCSI card and a Realtek > based PCI network card and a PCI SVGA card (trident 9440), disabled PnP on > bios and put all irqs below 13 to "ISA legacy", we are using the correct > major/minor numbers and put the driver directly in the kernel (static, no > module for cyclades.c).
Reserving all IRQs below 13 for ISA cards doesn't leave many IRQs for your PCI cards. Make sure you have enough IRQs allocated for ISA and PCI cards.
> The board freeze sometimes during the boot > sequence and sometimes goes on but minicom can't talk with /dev/ttyC?, any > ideas??
The board freezes? Or is the system that freezes?
If the system is freezing during the boot process, it doesn't mean that it is a problem with the Cyclom-Y :).
Verify if the IRQ issue above is not what is causing the problem. The default IRQ used by the Cyclom-Y cards is IRQ10.
Make sure that there are no address/IRQ conflicts between the boards in your system. The default memory address used by the Cyclom-Y cards is 0xd4000. The Cyclom-Y doesn't use I/O port addresses.
If there are no conflicts and you still supect of a problem related to the Cyclom-Y board, please run CYCTEST (available at ftp.cyclades.com:~/pub/cyclades) and contact <support@cyclades.com> (or our local distributor).
Technical support from Cyclades is unlimited and free to all Cyclades customers.
> BTW I looked in drivers/char/cyclades.c and there's a > CYCLOM_16Y_HACK... could be this??? Just defining this it does a udelay > (10L) in cy_interrupt(int irq, void *dev_id, struct pt_regs *regs), could > be that the machine is too fast and we must enable this to sync or > something???
This is a hack to workaround a problem that we found in a old model (dicontinued a couple of years ago) of the Cyclom-Y (a 16-port model, not expandable). If you have one of those boards, please contact the local Cyclades distributor to update your hardware.
> Arnaldo Carvalho de Melo mailto:acme@conectiva.com.br > Conectiva Internet Solutions http://www.conectiva.com.br
Regards,
Marcio.
---------------------------------------------------------------------- Marcio Saito e-mail: marcio@cyclades.com SW Engineer/Product Manager phone: (510)770-9727 x214 Cyclades Corporation fax: (510)770-0355 ----------------------------------------------------------------------
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