April 2003 - coreboot - mail.coreboot.org

Flashing Bios Success...
by Nathanael Noblet April 30, 2003

April 30, 2003

Hello all, So I've been trying for quite some time to gain access to the bios of the SBC I'm using so I can start placing linuxbios on it. Unable to get flash_rom to work and devbios segfaulting in some pci detection functions I was a little stuck. I didn't have a floppy drive on that SBC so couldn't use the uniflash dos programmer. Well I have found a way to get a dos boot and the uniflasher working. I have saved the original bios to file, and then flashed a fresh bios with the saved bios and its all working great. So though I would love to get flash_rom working or devbios for that matter. So now I'd like to know how to proceed. I have a build that builds I really have no idea how functional it is, and I fully expect some bugs. What I would LIKE to do right now is flash the flash chip with linuxbios (ignoring the kernel for the moment) just to see if it initializes the serial output etc as I want it to. So I've looked over the HOWTOs for the other boards. My board has a DoC, but I don't want to use it yet. So I assumed that I need to flash linuxbios or linuxbios.strip onto the flash. I tried, but uniflash gives me an error #100 unable to read file??? As well, my flash is 256K and the linuxbios is 24K... do I need to pad it? As well when I do the STD_FLASH,ROM_SIZE options and such the romimage is still 900K. I though originally that I would put the romimage on the flash.. it is obviously too big... The last question I have is the boot block in the flash chip itself there are two 8K boot blocks at the beginning and end of the flash, does something specific go in that area of the flash? So can anyone enlighten me on the next step? -- Nathanael Noblet Gnat Solutions 4604 Monterey Ave NW Calgary, AB T3B 5K4 T/F 403.288.5360 C 403.809.5368 http://www.gnat.ca/

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BIOS FLASHROMS AND COMPACT FLASH BOOT
by Deepak Kotian April 30, 2003

April 30, 2003

Hi, My enviorment : I have a system, which has 256/512K BIOS FLASH ROMS with 32MB Compact flash IDE. And the kernel image is residing on Compact flash. I can change the partioning as per the needs for LinuxBIOS to work. I just want BOOT Linux and no other O.S for now. I wish to burn the LinuxBIOS on 256K/512K BIOS FLASHROMS. Question: 1. What should I use, ADLO,etherboot,LinuxBIOS itself supports? 2. If LinuxBIOS supports, could some give a link to a sample conifg file for the same. Please elaborate, if possible. 3. If ADLO or etherboot is to be used, can a sample config file be refered for the same.. Could someone please give some pointer on this one. Regards Deepak

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version freeze
by ron minnich April 30, 2003

April 30, 2003

I'm pushing it off a week until I get these compile bugs worked out. So next target date for the freeze is may 8. We're close. ron

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SERIAL_POST_TSC
by ron minnich April 30, 2003

April 30, 2003

this option now works again. Very handy for timing. ron

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Epia -m : EEPROM not found
by Philippe CABANNES April 30, 2003

April 30, 2003

When i run the flash utility in flash_and_burn directory, it check for the rom chip but doesn´t find it. At the end it give this message : "EEPROM not found". I´m using a bios savior RD1 but i think it shouldn´t do problems. Can i use this utility with an epia-m or should i use an other one? -------------------------------------------------- Oreka ! Nous sommes l'internet moins cher ! Surfez 25% moins cher avec http://www.oreka.com

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linuxbios with ADLO [EPIA]
by NEWBELL7＠magicn.com April 30, 2003

April 30, 2003

Hello! Long time no see. I am trying to use framebuffer using linuxbios. So I am about to use ADLO. linuxbios -> etherboot -> ADLO -> Bochs -> VGA BIOS -> LiLo -> Linux ( flash rom ) ( remote server ) (MBR) Is that sequence right ? And I adopt the code which Andrew lp wrote on mailing list to enabel VGA device. But etherboot didn't work. ( Before enabling VGA device , it worked. ) .. The debug message is below. why didn't etherboot worked ? I think that the difference between enabling VGA and disabling VGA is PCI bus scanning and resource allocation part. Who does know this problem ? Thanks for your attention and your help. ======================================================================== ===== 0 LinuxBIOS-1.0.0 Wed Apr 30 15:46:33 KST 2003 starting... Copying LinuxBIOS to ram. Jumping to LinuxBIOS. LinuxBIOS-1.0.0 Wed Apr 30 15:46:33 KST 2003 booting... Finding PCI configuration type. PCI: Using configuration type 1 Scanning PCI bus...PCI: pci_scan_bus for bus 0 PCI: 00:00.0 [1106/0601] PCI: 00:01.0 [1106/8601] PCI: 00:11.0 [1106/8231] PCI: 00:11.1 [1106/0571] PCI: 00:11.2 [1106/3038] PCI: 00:11.3 [1106/3038] PCI: 00:11.4 [1106/8235] PCI: 00:11.5 [1106/3058] PCI: 00:11.6 [1106/3068] PCI: 00:12.0 [1106/3065] PCI: pci_scan_bus for bus 1 PCI: 01:00.0 [1023/8500] PCI: pci_scan_bus returning with max=01 PCI: pci_scan_bus returning with max=01 done Allocating PCI resources... PCI: 00:00.0 register 10(00000008), read-only ignoring it PCI: 00:00.0 register 10(00000008), read-only ignoring it PCI: 00:00.0 register 10(00000008), read-only ignoring it PCI: 00:00.0 register 10(00000008), read-only ignoring it ASSIGN RESOURCES, bus 0 PCI: 00:01.0 1c <- [0x00001000 - 0x00000fff] bus 1 io PCI: 00:01.0 24 <- [0xfe900000 - 0xfe8fffff] bus 1 prefmem PCI: 00:01.0 20 <- [0xfd800000 - 0xfe8fffff] bus 1 mem ASSIGN RESOURCES, bus 1 PCI: 01:00.0 10 <- [0xfd800000 - 0xfdffffff] mem PCI: 01:00.0 14 <- [0xfe800000 - 0xfe81ffff] mem PCI: 01:00.0 18 <- [0xfe000000 - 0xfe7fffff] mem ASSIGNED RESOURCES, bus 1 PCI: 00:11.1 20 <- [0x00001c40 - 0x00001c4f] io PCI: 00:11.2 20 <- [0x00001c00 - 0x00001c1f] io PCI: 00:11.3 20 <- [0x00001c20 - 0x00001c3f] io PCI: 00:11.5 10 <- [0x00001000 - 0x000010ff] io PCI: 00:11.5 14 <- [0x00001c50 - 0x00001c53] io PCI: 00:11.5 18 <- [0x00001c60 - 0x00001c63] io PCI: 00:11.6 10 <- [0x00001400 - 0x000014ff] io PCI: 00:12.0 10 <- [0x00001800 - 0x000018ff] io PCI: 00:12.0 14 <- [0xfe900000 - 0xfe9000ff] mem ASSIGNED RESOURCES, bus 0 Allocating VGA resource done. Enabling PCI resourcess...PCI: 00:00.0 cmd <- 06 PCI: 00:01.0 cmd <- 07 PCI: 00:11.0 cmd <- 87 PCI: 00:11.1 cmd <- 81 PCI: 00:11.2 cmd <- 01 PCI: 00:11.3 cmd <- 01 PCI: 00:11.4 cmd <- 00 PCI: 00:11.5 cmd <- 01 PCI: 00:11.6 cmd <- 01 PCI: 00:12.0 cmd <- 83 PCI: 01:00.0 cmd <- 03 done. Initializing PCI devices... PCI devices initialized sizeram: returning 0x3e000 KB sizeram: NOT returning 0x3e000 KB sizeram: there are still some SPD problems ... sizeram: SO we return only 0x10000 KB totalram: 64M Initializing CPU #0 Enabling cache... Setting fixed MTRRs(0-88) type: UC Setting fixed MTRRs(0-16) type: WB DONE fixed MTRRs Setting variable MTRR 0, base: 0MB, range: 64MB, type WB DONE variable MTRRs Clear out the extra MTRR's call intel_enable_fixed_mtrr() call intel_enable_var_mtrr() Leave setup_mtrrs done. Max cpuid index : 1 Vendor ID : CentaurHauls Processor Type : 0x00 Processor Family : 0x06 Processor Model : 0x07 Processor Mask : 0x00 Processor Stepping : 0x08 Feature flags : 0x00803035 MTRR check Fixed MTRRs : Enabled Variable MTRRs: Enabled Disabling local apic...done. CPU #0 Initialized Mainboard fixup IDE enable in reg. 50 is 0x7 set IDE reg. 50 to 0x7 IRQs in reg. 4c are 0x4 setting reg. 4c to 0x4 enables in reg 0x40 0x8 enables in reg 0x40 read back as 0xb enables in reg 0x9 0x8f enables in reg 0x9 read back as 0x8a command in reg 0x4 0x81 command in reg 0x4 reads back as 0x7 Ethernet fixup Configuring VIA LAN RTC Init Invalid CMOS LB checksum Final mainboard fixup Southbridge fixup setting southbridge Assigning IRQ 12 to 0:11.2 Readback = 12 Assigning IRQ 12 to 0:11.3 Readback = 12 Assigning IRQ 10 to 0:11.5 Readback = 10 Assigning IRQ 10 to 0:11.6 Readback = 10 setting ethernet Assigning IRQ 11 to 0:12.0 Readback = 11 setting pci slot Checking IRQ routing tables... /home/newbell/LinuxBios/freebios/src/arch/i386/lib/pirq_routing.c: 24:check_0 done. Copying IRQ routing tables to 0xf0000...done. Verifing priq routing tables copy at 0xf0000...failed Wrote linuxbios table at: 00000500 - 00000664 checksum 2a26 Welcome to elfboot, the open sourced starter. January 2002, Eric Biederman. Version 1.2 203:init_bytes() - zkernel_start:0xfff00000 zkernel_mask:0x0000ffff Searching for 16 byte tags 64:rom_read_bytes() - overflowed source buffer. max_block = 15 init_bytes found 0 tags Found ELF candiate at offset 0 New segment addr 0x94000 size 0x74e8 offset 0x60 filesize 0x396c (cleaned up) New segment addr 0x94000 size 0x74e8 offset 0x60 filesize 0x396c Loading Segment: addr: 0x0000000000094000 memsz: 0x00000000000074e8 filesz: 0x0c Clearing Segment: addr: 0x000000000009796c memsz: 0x0000000000003b7c Jumping to boot code at 0x94000

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Linuxbios + Etherboot + tagged Kernel Image
by Yap Ee Huey April 29, 2003

April 29, 2003

Hi hackers : I am a little bit confused here after building linuxbios, etherboot and making a tagged kernel image with mknbi. Hopefully I can get some help here : I have made ide_disk.elf, (22k) I tag bzImage with mknbi-linux, (888k) I have built linuxbios.rom (64k) I have 256k bios, so the kernel should be put somewhere on my harddisk. If i am not wrong my ide_disk.elf should be placed at the first sector of my bios rom. My question is: where should I put my Kernel Image and linuxbios.rom so that ide_disk.elf will know where to get and load them ? Do I need to modify the -DDEFAULT_BOOTFILE option which defaulted to tftp:///tftpboot/kernel ? Thanks a lot ! best regards, eehuey _________________________________________________________________ Are you in love? Find a date on MSN Personals http://match.msn.com.my/

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Another way of using ADLO
by bendany April 29, 2003

April 29, 2003

Hm, It seems that my way is buggy, But it works. ;-) I am trying to use the VGA with LinuxBIOS. since I am trying to use the Xwindows. if you want to start the Xserver, you must have the vgabios. I think when the Xserver startup, it will probe the videocard. but since the LinuxBIOS does not have the videobios. so the Xserver crash. you can using the Xserver with the kernel framebuffer driver. such as fbdev. but it lack the ability of hardware accel. such as play the movie fullscreen. so use the ADLO & bochs bios & vgabios will give you a second way to run the Xserver. since the LinuxBIOS switch the CPU into protected mode early, and the commercial vgabios runs in realmode. so the commercial vgabios cann't run after the LinuxBIOS. so the ADLO will do some preparation works. Load the bochs bios & vgabios. switch the CPU to the realmode. execute the bochs bios. the bochs will try to init the vgabios first.it scan the address 0xC0000 to 0xC7FFF in 2k increments. and then scan the General ROM from 0xC8000 to 0xDFFFF in 2k increments, so if we put the etherboot+AA patch after the address of vgabios. the etherboot will be excuted after bochs init the vgabios. the way why I do this is that the bochs bios is lack the ability of dealing with the real hardware. such as ide harddisk. In my experiment, when I use the IBM 30G harddisk. the speed of lilo & grub load the kernel normally, but when I use the flash IDE. the speed of lilo & grub , or syslinux, is too slow. if you want to run the etherboot with the bochs bios. you must do some work yourself. first, using ADLO to get your own vgabios. my mainboard chipset is sis630. the vgabios is 48kb. plus the etherboot+AA rom. and the bochs bios .altogether 144kb. and the ADLO only provide 3 types of elf loader. so you must create the 145kb loader yourself. and also modify the loader.s. and you will need to modify the etherboot5.0.6+AA patch too. hope help. Best regards.

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RE: Linuxbios + Etherboot + tagged Kernel Image
by Yap Ee Huey April 29, 2003

April 29, 2003

Hi, I am using etherboot 5.1.7 , any later versions will have it. regards, eehuey >Hi, > > what version of etherboot are you using, I tried with etherboot5.0.9 and >etherboot5.0.10 but "make ide_disk.elf" doesn't work, neither does "make >bin32/ide_disk.elf" > >Regards, >Shubhangi _________________________________________________________________ Download the latest MSN Messenger http://messenger.msn.com.my

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Re: Bios flashing continued
by Nathanael Noblet April 29, 2003

April 29, 2003

On Tuesday, April 29, 2003, at 07:42 AM, ron minnich wrote: > Do you have a plain old flash part you can put in there? SST 28SF040 is > ideal. So I ordered the flash parts that were already in the machine when I bought it, the chances of another type of flash working is slim to none right? Were I to purchase the one above, how would I know if it would work? -- Nathanael Noblet Gnat Solutions 4604 Monterey Ave NW Calgary, AB T3B 5K4 T/F 403.288.5360 C 403.809.5368 http://www.gnat.ca/

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