[LinuxBIOS] Another Geode GX1: status & questions
chris at suehsi.de
Sat May 13 22:04:28 CEST 2006
> Questions/issues thus far:
> 1) IRQ questions. I got the error about copying the IRQ table, and I
> know I can fix this by using an uncompressed image. But that leaves me
> with a few questions:
After enabling read/write/cache for BC_XMAP_2 and BC_XMAP_3 in
gx_setup.inc under src/cpu/amd/model_gx1 the irq_table is copied and
You should set both to 0x33333333 or 0x77777777 to try this
> a) Does using an uncompressed LB image preclude having a failsafe
> image, due to uncompressed image size? Not a problem for me, just curious.
> b) How can I create an IRQ map for this system, or do I not worry about
> it? This machine was built to only run WinCE, so I can't take the stock
> BIOS, boot Linux, and do any investigating.
> 2) When initializing the IDE on the CS5530, LB reports "missing
> enable_resources", even though a few lines prior, it looks like it
> assigns the proper I/O range for IDE. What does this mean? (See
> attached LB output.)
Sorry no answer for that :(
> 3) I have several uses in mind for these boards, if I can get more of
> them. Some uses would involve using the audio and VGA, both of which I
> know are problematic. I think the VGA part I can do, but what about
Read the allwell stb3036 threads, I run in several problems to get the
vga working :D
> audio? Is "VSA" required to initialize the audio? I guess what I'm
> wondering is, what's the minimum LB has to do before Linux can see (and
> use) the audio. FWIW, this board has an NS LM4548 audio chip, which I
You should set first the audio device to "on" in the Config.lb under
I have the same NS audio companion chip on my board, but not test this yet.
> assume is a support chip for the XpressAudio? Or better, maybe DTRI
> decided to scrap XpressAudio and this chip is standalone... that would
> make me happy. :-)
Sorry, but the datasheets says that the NS LM4548 is a companion for the
internal cs5530 audio stuff. Therefor I think that thing is not
standalone. However, Linux detects this devices as Kalhua Audio.
I will test it in the next days.
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