coreboot

coreboot@coreboot.org

8 participants
39709 discussions

Embedded Linux Systems book
by John Hearns 08 Aug '03

08 Aug '03

Over the weekend I went to the UKUUG Linux Developers Conference in Edinburgh. http://www.ukuug.org/events/linux2003/ Lots of great stuff, including a tutorial by Stephen Tweedie and a BOF we had on clusters and filesystems. Plus whisky and visits to the Festival Fringe :-) I gave a presentation on mini-ITX systems, sadly though I didn't run Linuxbios. Josette Garcia from OReilly UK had her usual stand, with lots of tempting books. As usual, I could not resist adding to my collection. I bought the new 'Building Embedded Linux Systems' http://www.oreilly.com/catalog/belinuxsys/ Reading it on the train journey back home, I tought it is an excellent book. Lots of information on DoC, CompactFlash, filesystems -CRAMFS, JFFS2 etc. and their characteristics, methods of booting and creating bootable CFS, programming BIOSes. Could give people good information on DoC etc. All in all, I would reccomend this book, as there are good general sections on the various architectures Linux runs on, and also an appendix discussing binary-only drivers, and Linus' attitude to them. BTW, was it in this book that I read that from 2.5 kernels Linux will run on MMU-less 68000 CPUs? Time to dust down my old copy of "68000 Assembly Language Programming" from yea long ago...

1 0

Using USB Flash drives instead of CF
by Jeff Noxon 08 Aug '03

08 Aug '03

Has anyone tried using a USB Flash drive instead of CF? I can build a usable 2.6.0-test2 kernel in well under 400kB with USB and SCSI support, and most of the rest as modules. In theory it could just use /dev/sda as the root device, right? Unfortunately, networking adds another 156kB to the size of the compressed kernel, and cannot be built as a module... But I can live without that on a workstation, and etherboot could always be included too. Regards, Jeff

3 2

will it work?
by wing549 08 Aug '03

08 Aug '03

though my motherboard my not be on the list is it not their because it just dosent work? or lack of reasearch, i have a asus a7v333, and a abitkx7333r, both via chipsets, what are the possibilities of getting the linuxbios on them? and could i totaly destroy my computers if im not sucessful? thanks

1 0

basic help.
by John Praveen 07 Aug '03

07 Aug '03

Hi, I have the custom board (geode sc1200) with peripherals like ethernet, PCI audio video decoder, Tuner, hard disk, SDRAM, Flash memory. I will have to have my BIOS program, linux kernel and specific application program in my Flash memory. I have hard disk only for storing files. My Flash memory is of 32 Mbits and SDRAM 32MBytes. I want to use LinuxBios. I build it for nano mainboard. But still I have many doubts. In normal BIOS, we will say the bios program to load the bootloader from hard disk into location 0000:7C00. What part of the program in Linuxbios will bring my linux kernel image from Flash into SDRAM? Is any options or something to be included in the configuration file to say to boot from Flash memory. In my embedded device the Flash memory is mapped to physical address 00000h to 3FFFFFh. So at what location should i place the linuxbios romimage and linux kernel image in my Flash memory? Where shall my application program be placed in Flash? I hope I should have a filesystem. Is the MTD meant for the filesystem? What part of the program in Linuxbios will bring my linux kernel image from Flash into SDRAM? Thanks in advance. Regards, John. --------------------------------- Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software

1 0

BIOS Savior works on Tyan Tiger MPX (S2466N-4M)
by Jeff Noxon 07 Aug '03

07 Aug '03

Folks, I successfully installed a BIOS Savior RD1-PMC4 on my Tyan Tiger MPX (S2466N-4M) today. It works just fine, but I cannot identify the Flash chip on it (0x9d/0x6e) -- if anyone knows how to track this down, I'd love to know. In the meantime I forced it to work with Steven James's flash_tool program. The flash chip that Tyan shipped with the board is a SST49LF040. I presume the RD1-PMC2 would work on the older Tiger MP board. I can't say whether Tyan's DOS-based flash utility works with this beast or not. I can't get it to run at all on my machine -- it complains that himem.sys is loaded, even on a boot disk that doesn't contain himem.sys! I tried a handful of other flash utilities but none of them would ID the BIOS Savior chip for me. Regards, Jeff

1 0

Tiger MPX & LinuxBIOS
by Jeff Noxon 07 Aug '03

07 Aug '03

Howdy, I'm the newbie du jour. I'm attempting to get Linuxbios working on an EPIA 533 and a Tyan Tiger MPX (S2466N-4M). I was able to build an EPIA BIOS w/o trouble using the Howto. Applying the same principles to the Tiger, I am running into trouble. Can someone please help? TIA, Jeff ---- cut here ---- hedgehog:/usr/src/linuxbios/TigerMPX-primary# make Makefile:602: warning: overriding commands for target `keyboard.o' Makefile:479: warning: ignoring old commands for target `keyboard.o' Makefile:605: warning: overriding commands for target `mc146818rtc.o' Makefile:482: warning: ignoring old commands for target `mc146818rtc.o' Makefile:608: warning: overriding commands for target `isa-dma.o' Makefile:485: warning: ignoring old commands for target `isa-dma.o' Makefile:611: warning: overriding commands for target `i8259.o' Makefile:488: warning: ignoring old commands for target `i8259.o' Makefile:614: warning: overriding commands for target `udelay_timer2.o' Makefile:491: warning: ignoring old commands for target `udelay_timer2.o' Makefile:617: warning: overriding commands for target `beep.o' Makefile:494: warning: ignoring old commands for target `beep.o' Makefile:620: warning: overriding commands for target `vga_load_regs.o' Makefile:497: warning: ignoring old commands for target `vga_load_regs.o' Makefile:623: warning: overriding commands for target `font_8x16.o' Makefile:500: warning: ignoring old commands for target `font_8x16.o' Makefile:626: warning: overriding commands for target `vga_set_mode.o' Makefile:503: warning: ignoring old commands for target `vga_set_mode.o' Makefile:629: warning: overriding commands for target `vga_load_pcx.o' Makefile:506: warning: ignoring old commands for target `vga_load_pcx.o' Makefile:632: warning: overriding commands for target `ide.o' Makefile:509: warning: ignoring old commands for target `ide.o' cp /usr/src/linuxbios/linuxbios/src/arch/i386/config/crt0.base crt0.S gcc -x assembler-with-cpp -DASSEMBLY -E ... crt0.S > crt0.s gcc ... -o crt0.o crt0.s crt0.S: Assembler messages: crt0.S:156: Warning: indirect jmp without `*' /usr/src/linuxbios/linuxbios/src/southbridge/amd/amd768/disable_watchdog.inc:3: Error: undefined symbol `L0' in operation /usr/src/linuxbios/linuxbios/src/southbridge/amd/amd768/disable_watchdog.inc:10: Error: undefined symbol `L0' in operation /usr/src/linuxbios/linuxbios/src/southbridge/amd/amd768/disable_watchdog.inc:18: Error: undefined symbol `L0' in operation /usr/src/linuxbios/linuxbios/src/southbridge/amd/amd768/smbus.inc:48: Error: undefined symbol `L0' in operation /usr/src/linuxbios/linuxbios/src/southbridge/amd/amd768/smbus.inc:57: Error: undefined symbol `L0' in operation make: *** [crt0.o] Error 1 ---- cut here ---- All the lines that are giving me trouble are a varation of this: movl $(0x80000000 | PM_DEV_FN | 0x49), %eax Which is defined as: #define PM_DEV_FN (AMD768_DEV + 0x300) Although I don't immediately see where AMD768_DEV is defined. Hey, I'm a newbie ;) Versions: LinuxBIOS CVS from yesterday (wow, sf.net is slow!) gcc version 3.3.1 20030728 (Debian prerelease) [binutils] GNU assembler version 2.14.90.0.5 (i386-linux) using BFD version 2.14.90.0.5 20030722 Debian GNU/Linux Here is my config file, basically borrowed from the example: ## This is relative to where the configuration file resides in the filesystem target /usr/src/linuxbios/TigerMPX-primary mainboard tyan/TigerMPX ## Build a normal not a fallback image. option USE_NORMAL_IMAGE=1 ## Build an image for a 512KB rom ## ./normal/romimage is the entire rom image except for the last 64KB ## which are reserved for the fallback image. option ROM_SIZE=524288 ## Select the maximum size the linuxBIOS code can compile to. ## Allow linuxBIOS to be up to 48KB in size #option ROM_IMAGE_SIZE=49152 option ROM_IMAGE_SIZE=65536 ## ### The Serial Console ## ## Hardware flow control is currently ignored. ## Enable the Serial Console option SERIAL_CONSOLE=1 ## Select the serial console baud rate. option TTYS0_BAUD=115200 #option TTYS0_BAUD=57600 #option TTYS0_BAUD=38400 #option TTYS0_BAUD=19200 #option TTYS0_BAUD=9600 #option TTYS0_BAUD=4800 #option TTYS0_BAUD=2400 #option TTYS0_BAUD=1200 # Select the serial console base port option TTYS0_BASE=0x3f8 # Select the serial protocol # This defaults to 8 data bits, 1 stop bit, and no parity option TTYS0_LCS=0x3 #this configures serial to accept input (needed for some payloads) option PYRO_SERIAL=1 ## ### Select the linuxBIOS loglevel ## ## EMERG 1 system is unusable ## ALERT 2 action must be taken immediately ## CRIT 3 critical conditions ## ERR 4 error conditions ## WARNING 5 warning conditions ## NOTICE 6 normal but significant condition ## INFO 7 informational ## DEBUG 8 debug-level messages ## SPEW 9 Way too many details ## Request this level of debugging output option DEFAULT_CONSOLE_LOGLEVEL=8 ## At a maximum only compile in this level of debugging option MAXIMUM_CONSOLE_LOGLEVEL=9 ## Use the elf bootloader option USE_ELF_BOOT=1 ## Select the boot device option USE_GENERIC_ROM=1 #option BOOT_FLOPPY=1 #option USE_SERIAL_FILL_INBUF=1 #option BOOT_IDE=1 # Load etherboot with the elf bootloader # The payload command is relative the build directory # So .. is the directory this config file resides in payload /usr/src/linuxbios/etherboot-5.0.8/src/bin32/3c90x.elf

1 0

Option ROM for Device.
by YhLu 07 Aug '03

07 Aug '03

Ron, How about the support of Option rom execution for on board device? Some device vendors only provide option rom instead of datasheet. Regards Yinghai Lu

4 7

quartet boot
by Stefan Reinauer 07 Aug '03

07 Aug '03

Hi, I'm having bad luck with the AMD Quartet machines currently. Due to the 4 memory controllers I had to take out quite some debug messages from auto.c to get it compile, but I don't really get to that point anyways.. all I get is the following: LinuxBIOS-1.1.0Fallback Do Aug 7 16:05:24 CEST 2003 starting... setting up resource map.... done. Enabling routing table for node 00000000 done. Enabling SMP settings setup_remote_node setup_remote_done Renaming current temp node to 00000001 done. Enabling routing table for node 00000001 done. [long delay here] Renaming current temp node to 00000002 [long delay here] done. Enabling routing table for node 00000002 [long delay here, then reset:] LinuxBIOS-1.1.0Fallback Do Aug 7 16:05:24 CEST 2003 starting... setting up resource map.... done. Enabling routing table for node 00000000 done. Enabling SMP settings [complete hang] this worked some time ago in CVS, but I don't know when it stopped. Can the resource map cause these problems? I dumped the resource map I am using from a different quartet machine, and now I get the same problems than I had before with the default resource map. It looks to me like it's a bad idea[tm] to set the resource map at all before knowing anything about the machine's resources. debugging... Stefan

2 2

DoC 2000 vs DoC Millennium
by Niki Waibel 07 Aug '03

07 Aug '03

what are actually the differences between DoC 2000 and DoC Millennium? are both versions working in linux? which one is the newer product? are they electrically (pins, voltage, etc) different? are there any limitation in the size of these chips? i mean -- could a 2GB chip be used on linux? niki

1 0

gx1
by Brian G. Rhodes 07 Aug '03

07 Aug '03

There was some talk about the geode GX1 line here, so I thought people might be interested in the fact that AMD has purchased national's GX1 line, so hopefully in the near future there will be some hardware fixes for the current problems programmers have to deal with. Brian G Rhodes bgr(a)linespeed.net brhodes(a)visualcircuits.com +1 612-741-1191

1 0

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

coreboot