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<TITLE>Re: [LinuxBIOS] AMD64 serial setup</TITLE>
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<DIV dir=ltr><FONT face=Arial color=#000000 size=2>can you do that on
amd8111_lpc.c?</FONT></DIV>
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<DIV dir=ltr><FONT face=Arial size=2>YH</FONT></DIV></DIV>
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<FONT face=Tahoma size=2><B>From:</B> linuxbios-bounces@linuxbios.org on behalf
of Stefan Reinauer<BR><B>Sent:</B> Tue 3/7/2006 5:17 AM<BR><B>To:</B> Ronald G
Minnich<BR><B>Cc:</B> linuxbios@linuxbios.org<BR><B>Subject:</B> Re: [LinuxBIOS]
AMD64 serial setup<BR></FONT><BR></DIV>
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<P><FONT size=2>* Ronald G Minnich <rminnich@lanl.gov> [060305
20:54]:<BR>> Stefan Reinauer wrote:<BR>> ><BR>> >>The systems
which are causing problems all have a<BR>> >><BR>> >>
W83627HF revision ID = 0x17<BR>> >><BR>> >>The OK systems with
linuxbios all have:<BR>> >><BR>> >> W83627HF revision ID
= 0x41<BR>> >><BR>> >>Unfortunately there does not seem to be
a revision guide on the winbond<BR>> >>website. Any ideas
anyone?<BR>> ><BR>> ><BR>> >The only information I could
find:<BR>> >the W83627HF data sheet says:<BR>> ><BR>> >Version
| Device Rev<BR>> >--------+-----------<BR>> >
G | 17<BR>> >
J | 3A<BR>> > UD-A
| 41<BR>> ><BR>> >(<A
href="http://www.winbond.com/e-winbondhtm/partner/PDFResult.asp?Pname=182">http://www.winbond.com/e-winbondhtm/partner/PDFResult.asp?Pname=182</A>)<BR>><BR>>
sorry, I have not been following this one closely. Given that you can<BR>>
differentiate the chips, is there some workaround you can force in at<BR>>
bios time? How does one fix this?<BR><BR>As a workaround/solution it is possible
to add<BR><BR>pci_write_config8(PCI_DEV(0, 0x04, 3), 0x4a, 0x50);<BR><BR>right
after console_init() in auto.c.<BR><BR>This switches the 8111 serial irq logic
from quiet mode to continuous<BR>mode:<BR><BR> CONTMD. Continuous
mode selected versus quiet mode. 1=The serial IRQ<BR> logic is in
continuous mode. 0=The serial IRQ logic is in quiet mode.<BR> In
continuous mode, the start frame is initiated by the IC<BR>
immediately following each stop frame. In quiet mode, start
frames<BR> are initiated by external slave devices.<BR><BR>I wonder
whether this is generally a good idea and should go to 8111<BR>setup for all
boards?<BR><BR>Winbond has been very helpful in this issue. They've been
answering<BR>all my questions almost
immediately.<BR><BR>Stefan<BR><BR>--<BR>coresystems GmbH · Brahmsstr. 16 ·
D-79104 Freiburg i. Br.<BR> Tel.: +49 761 7668825
· Fax: +49 761 7664613<BR>Email: info@coresystems.de · <A
href="http://www.coresystems.de/">http://www.coresystems.de/</A><BR><BR>--<BR>linuxbios
mailing list<BR>linuxbios@linuxbios.org<BR><A
href="http://www.openbios.org/mailman/listinfo/linuxbios">http://www.openbios.org/mailman/listinfo/linuxbios</A><BR><BR></FONT></P></DIV>
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