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[Xavier Pegenaute <xpegenaute@telepolis.es>] Re: Map of the memory
by ebiederman＠lnxi.com 19 May '03

19 May '03

Don't just send questions to me. Thank you. Eric

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[Bochs] Do I need Bochs necessarily ?
by NEWBELL7＠magicn.com 19 May '03

19 May '03

Hello!! I adapt Takeshi's patch to my EPIA. Thanks for your help very much. So, It works great. But I want to know what Bochs does . I think that we need Bochs for VGA and HDD(LILO). Is that right ? Who can explain what Bochs does ? Please. regards newbie.

2 1

am I wrong? about build romimage of k7sem mb.
by bendany 17 May '03

17 May '03

I found the Config of elitegroup/k7sem has missed something... without the following lines. I can't build the correct romimage. --------------------------- mainboardinit cpu/i386/reset16.inc ldscript cpu/i386/reset16.lds --------------------------- but with these lines, I can build the correct image, but linuxbios don't go. output message is : ---------------------------- LinuxBIOS-1.0.0 Sat May 17 19:34:29 CST 2003 starting... 0 LinuxBIOS-1.0.0 Sat May 17 19:34:29 CST 2003 starting... 0 LinuxBIOS-1.0.0 Sat May 17 19:34:29 CST 2003 starting... 0 ---------------------------- while I download the romimage from cwlinux.com. I can run LinuxBIOS. here is my config file ------------------------------------- target k7sem mainboard elitegroup/k7sem cpu k7 option ZKERNEL_START=0xfffc0000 option SERIAL_CONSOLE=1 option DEFAULT_CONSOLE_LOGLEVEL=8 option MAXIMUM_CONSOLE_LOGLEVEL=8 option DEBUG=1 option MII_ENABLE=1 option USE_GENERIC_ROM=1 option STD_FLASH=1 option CONFIG_COMPRESS=0 option ROM_SIZE=131072 option PAYLOAD_SIZE=65536 option USE_ELF_BOOT=1 payload ../sis900.ebi --------------------------------------- am I miss something?

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Map of the memory
by Xavier Pegenaute 17 May '03

17 May '03

Hi, i was trying to make a memory map in the eeprom but i have some questions when i saw linuxbios_c.map and linuxbios.map ... We "compile" linuxbios_c with c_start.o and linuxbios.a until generate linuxbios_payload and linuxbios_c.map. We "compile" crt0.S and we make the crt0.o. After we "compile" crt0.o with linuxbios_payload generating linuxbios binary and linuxbios.map If we see inside the map files, i can see that there are labels at the same position in the both map files for example: linuxbios_c.map : 00004000 A _RAMBASE 00080000 A _ROMBASE linuxbios.map: 00004000 A _RAMBASE 00080000 A _ROMBASE How is it possible ? when in theory al linuxbios_c is in the payload of linuxbios? linuxbios.map: 000805a0 D _payload 00085e5d D _epayload also i saw in some file (.ld) in the tree of freebios a picture of memory: Memory map: 0x00000 (4*4096 bytes) : stack 0x04000 (4096 bytes) : private data 0x05000 : data space 0x90000 : kernel stack 0xf0000 (64 Kbyte) : EPROM Is it right ? i think that i'm confusing the memory in RAM and the memory in EPROM. But i don't know how build a correct idea. Thanks. Xavi.

2 1

[COMMIT] Baremetal environment
by steven james 17 May '03

17 May '03

Greetings, I have committed a few cleanups to baremetal to make the environment a bit more useful. The lib directory contains a new startup function in _main.c which locates the top of RAM using the linuxbios table and checks for a signature there. If absent, it moves the stack to high ram, and initializes a simple structure containing pointers to the lbmemory structs in the table, and the highest address of freely usable ram. Bounce buffers and such are allocated by subtracting from the dree RAM value. When an additional baremetal program is run, it will detect the existant structure and use its values. Together, this allows for arbitrary stacking of payloads and safely returning to the calling payload. A 'terminal payload' such as a kernel elf image may simply ignore all of that and do what it wants. This is still subject to change, and amounts to a platform for discussion and a little practical exprimentation. G'day, sjames -- -------------------------steven james, director of research, linux labs ... ........ ..... .... 230 peachtree st nw ste 2701 the original linux labs atlanta.ga.us 30303 -since 1995 http://www.linuxlabs.com office 404.577.7747 fax 404.577.7743 -----------------------------------------------------------------------

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ASUS TX97LE mainboard seems support too.
by bendany 16 May '03

16 May '03

ASUS TX97LE , the northbridge is 82439TX, southbridge is 82371AB, and I try it with the linuxbios build by mainboard digitallogic/smartcore-p5, test it. and succeeded loading the etherboot payload. need more test.

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Items that should be in the FAQ or README
by roger 16 May '03

16 May '03

recommended/required hardware should be listed in the FAQ or README (or did I pass-over it?) 1) Diskonchip model(s) number for ordering (Diskonchip Millenium 8MB MD2810-D08? --> www.m-sys.com) 2) Zif socket model/ordering numbers (so far, i'm looking at a 32-6554-11 32-pin zif dip .6 spacing (gold over nickel plating) <-- is this a good one? pulled from linuxbios mail list archives) Roger http://www.eskimo.com/~roger/index.html

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Tyan Tiger 1832DL Motherboard (SMP P3 -- 440BX)
by roger 16 May '03

16 May '03

Tyan Tiger 1832DL Motherboard (SMP P3 -- 440BX) -- Chip Info -- (looks like a 2MB eeprom?) Main bios chip markings: Winbond W29C020-90 92900292073701V Other Sticker #1: 8x32 116A (or 118A) Other Sticker #2: AMIBIOS 686 1985-95 American Megatrends B254065 -- Roger http://www.eskimo.com/~roger/index.html

1 0

debugger
by Frank 15 May '03

15 May '03

Can anyone recommend a debugger for bringing up LinuxBios on an x86 system... __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

4 11

etherboot
by Serafino Sorrenti 15 May '03

15 May '03

Hello, now i download etherboot 5.1.8, i need more information to use this! tnx Serafino

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