Date: Tue, 5 Sep 1995 21:29:21 -0700 (PDT) From: Julian Elischer <julian@ref.tfs.com> To: jbrann@panix.com (John Brann) Cc: hardware@freebsd.org Subject: Re: Video Board, Cirrus Logic 5434 on PCI Message-ID: <199509060429.VAA02885@ref.tfs.com> In-Reply-To: <199509060252.WAA11828@panix2.panix.com> from "John Brann" at Sep 5, 95 10:52:13 pm
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you really should send these questions to the Xfree86 groups.. the freebsd group don't know the internals of their stuff.. we just import it.. > > > > > > > Is it possible to use a Cirrus (GD5434) Board with FreeBSD-2.05 and > > XFree86 ? > > > > > Yes, definitely. I have a PCI card with 2Mb memory which works just fine at > 8bpp. It also worked with 1Mb - which brings me to another question... > > I added the extra Meg of memory to move up to 64K colours. In order to drive > my GD5434 up to 16bpp, I must specify a 'Membase' option for the framebuffer > base address. To quote the 'Readme'... > > With a card on the PCI bus, there is a PCI configuration register that > holds the framebuffer base address. However, the driver currently does > not read it out yet, so you'll have to specify the address with > MemBase. On one system tested, it mapped at 0xa0000000, and it > appeared addresses where assigned in 0x08000000 increments over the > PCI devices. A program is most likely available to read out the PCI > configuration. > > > So, does this program exist? Alternatively, can I work out the info. I need > from the boot messages? I see that... > > vga0 <VGA-compatible display device> rev 142 int a irq ?? on pci0:18 > pci0: uses 16781312 bytes of memory from f800000 0 upto f8ffffff. > > Any help is appreciated... > > I'm running 2.0.5-950622-SNAP on a Pentium 60 with 32Mb of RAM > > John > > -- > "That was inedible muck, and there wasn't enough of it." > Sir Henry Rawlinson. > John Brann -- jbrann@panix.com jbrann@newparadigm.com >
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