[LinuxBIOS] Another Geode GX1: status & questions
jonathan at sprintmail.com
Sat May 13 16:59:26 CEST 2006
I'm new to LB, and after studying the list archives for the past week,
I've started working on getting LB installed on yet another Geode GX1
board. This system is actually a MaxSpeed MaxTerm 230, an old thin
client system that had been surplussed. The board inside was
manufactured by DTRI (www.dtresearch.com), and is model WBTG v1.1. The
WBTG has a 300Mhz GX1, 64MB of on-board DRAM, and 8MB of on-board
flash. It uses the CS5530 southbridge, an NS PC97317 SuperIO, and an NS
83815 10/100 Ethernet.
Since the CPU, southbridge, and SuperIO are the same as the Eaglelion
5bcm, I have started with that target. And my initial LB image,
complete with FILO, basically works! At least, it passes the smoke test.
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:
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.)
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
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
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. :-)
Thanks to everyone on the LB team, it's clear from the archives that you
all are really dedicated. And thanks to Hamish for the GX1 work in LBv2.
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