coreboot November 2004

coreboot@coreboot.org

31 participants
183 discussions

RE: Makefile changes for symbols
by Stephen.Kimball＠bench.com 03 Nov '04

03 Nov '04

> <Stephen.Kimball(a)bench.com> writes: > > > Rod, > > > > I'm using Source Point 7.0.0. I can see the source files. I can > > display source, disassembly or mixed. However, the disassembly doesn't > > match up with the source code. There is a way to give Source Point an > > offset when the symbols are loaded, but I can't seem to get the right > > value. I know the address of _start and __protected_start but these > > labels are not in linuxbios_c.o. I need to find the location of a > >symbol in linuxbios_c.o to compute the offset. > > ??? > > linuxbios_c is run at an absolute location in memory so the address > of the symbols within it should be fine. > > Look at readelf -a linuxbios_c. I have looked at the readelf output. Readelf says hardwaremain is at 000020b8, but I can't find it. SourcePoint thinks it's at 0008:000020B8 (32-bit mode). But it's not there even after the copy into RAM. > > Now these are not addresses within the rom chip. The are the addresses > the code is copied to after memory initialization. > > Currently romcc which generates the code that executes immediately > out of the rom chip does not give good debugging output. But > you should still be able to see the assembly. crt0.s should > match what you are looking at. > > You don't have the debugger in 16bit mode or something do you? SourcePoint switches to 32-bit mode 16 instructions into crt0.s at the JMP instruction. Am I right that crt0.s loads LinuxBIOS into RAM then branches to hardwaremain? Steve

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Etherboot 5.2.5 with gcc 3.4
by YhLu 03 Nov '04

03 Nov '04

Eric, When using gcc 3.4 to compile Etherboot 5.2.5, I got ld -N -Ttext 0x20000 -T arch/i386/core/etherboot.lds -o bin/tg3.tmp bin/start32.o bin/pcbios.o bin/memsizes.o bin/basemem.o bin/linuxbios.o bin/config.o bin/tg3.o bin/bootlib.a bin/linuxbios.o(.text+0x337): In function `get_memsizes': : undefined reference to `memcpy' Regards YH

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RE: i845GV ddr sdram init passed
by YhLu 03 Nov '04

03 Nov '04

send out raminit.inc, I could convert that into freebios2 for you. I guess raminit.inc is similar to e7501's. Regards YH -----Original Message----- From: zhu shi song [mailto:zhushisongzhu@yahoo.com] Sent: Wednesday, November 03, 2004 3:03 AM To: linuxbios(a)clustermatic.org Subject: i845GV ddr sdram init passed After working hard for three day, I have made i845gv ddr sdram work well. I can boot linux 2.4.27 with root filesystem on my hard disk. But linux 2.4.27 support new hardware weakly. So I hope I can boot linux 2.6. I have before used initrd dyn invented by l inux router project to boot linux 2.4. I like the way booting linux. (1) Who knows can initrd dyn support linux 2.6. I know the latest version of initrd dyn is for linux2.5.54. (2) If unfortunately I can't use initrd dyn again, how can I make my root fs? how can I boot linux 2.6 using tar.gz file as root filesystem? tks zhu __________________________________ Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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RE: some questions about nForce and LinuxBIOS
by YhLu 03 Nov '04

03 Nov '04

Tom warren from Nvidia seems work on LinuxBIOS support on (k8s....) Regards YH -----Original Message----- From: David Hendricks [mailto:cro_marmot@comcast.net] Sent: Wednesday, November 03, 2004 1:54 AM To: linuxbios(a)clustermatic.org Subject: Re: some questions about nForce and LinuxBIOS I don't think anyone's done an nForce2 port for LinuxBIOS. The nForce4 on the other hand might be different, you would have to ask Dr. Lu @ Tyan about that. And Ron might have just made bootup time <= 8 seconds for K8s. I'm dying to try this stuff out on my nForce3 :) On Wed, 3 Nov 2004 00:52:55 -0800 (PST) Kory Herzinger <koryherzinger(a)yahoo.com> wrote: > > I am working on my senior project in college, and have run into a > slight issue with how long it takes for my BIOS to POST. I would like > LinuxBIOS to boot my system into a minimal Linux kernel in as little > amount of time as necessary, and then have that kernel boot into a > Linux system I've already built and configured on the hard drive. From > doing some research on your project I've found that this goes by the > catchy name of LOBOS :-) From the kernel that the LinuxBIOS will boot, > I don't need network, sound, or video support. I'd like to leave it up > to the existing Linux installation on my hard drive to bring up these > devices for me. Here's the specs on the board I am using: > > Northbridge: NForce2 Crush 18G IGP chipset > Southbridge: MCP chipset / High-speed interface to the MCP > OnBoard GFX: NVidia GeForce4 MX > > The board has support for TV composite signal-out which I will be > using once the system is up and running, but since nVidia doesn't > release specs or source for their hardware, I obviously can't use it > during the BIOS phase. So I guess the real questions are: > > 1) Is it possible to build a LinuxBIOS that will run on my system? > 2) If so, since the support for network, sound, and audio devices will > not be present in the BIOS, can I still bring them up in my Linux > kernel using the proprietary drivers distributed by nVidia? 3) If the > above two scenarios are possible, could I throw my linux system > currently on the hard drive into a NVRAM device and boot it from there > to further reduce boot time? > > I appreciate your help with this. If you are interested in my senior > project, there is information on my project website: > www.novagameconsole.com > > Anything you can offer is greatly appreciated! Thanks! > > > --------------------------------- > Do you Yahoo!? > Check out the new Yahoo! Front Page. www.yahoo.com/a _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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RE: flash_rom on SST49LF004B tips?
by YhLu 03 Nov '04

03 Nov '04

That should be kernel 2.6 bug under 64bit: the last 4k near 4G can not be accessed when 4G RAM installed. Regards YH -----Original Message----- From: Li-Ta Lo [mailto:ollie@lanl.gov] Sent: Wednesday, November 03, 2004 9:10 AM To: Ronald G. Minnich Cc: Donald Zoch; Hendricks David W.; LinuxBIOS Subject: Re: flash_rom on SST49LF004B tips? On Wed, 2004-11-03 at 09:53, Ronald G. Minnich wrote: > On Mon, 1 Nov 2004, Donald Zoch wrote: > > > I'm trying to get the flash_rom program working on the SST49LF004B. > > This is the part that is coming in our newer Arima HDAMA boards that > > replaces the SST49LF040. It has the same id as the SST49LF004A, > > but is different in that when we first started trying to flash it, the > > flash looked like it worked but would never verify. I took a look > > at the data sheet and from the looks of it there are these block locking > > registers that the zero bit must be cleared in in order to write to > > certain parts of the flash. At least that's why I think it's not > > flashing. > > I did a part like that already, the sst 49lf008a. > > Look in flash_rom. It works fine. > BTW, there is some unknown proble to flash some SST flash in 64-bit mode. I have no idea why. It works perfectly in 32-bit mode. Ollie > ron > _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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Re: tagging freebios2 tree
by ebiederman＠lnxi.com 03 Nov '04

03 Nov '04

Li-Ta Lo <ollie(a)lanl.gov> writes: > On Tue, 2004-08-24 at 19:07, Eric W. Biederman wrote: > > No quite I put the cpu_info structure at the bottom of the stack, > > and this function looks it up. > > > > The same idea has been used in the kernel for quite a while. > > > > Basically this allows me to preallocate some per cpu information > > and to pass that into cpu_initialize from another cpu. > > > > The linux kernel has been doing something similar for quite a while. > > > > Does cpu_info() return different value depends on which CPU it is > running ? Yes. The stack is per cpu and it returns a fixed address from the stack structure. > Are the data structures per CPU or shared between CPUs ? per-cpu. Which is the point. Eric

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some questions about nForce and LinuxBIOS
by Kory Herzinger 03 Nov '04

03 Nov '04

I am working on my senior project in college, and have run into a slight issue with how long it takes for my BIOS to POST. I would like LinuxBIOS to boot my system into a minimal Linux kernel in as little amount of time as necessary, and then have that kernel boot into a Linux system I've already built and configured on the hard drive. From doing some research on your project I've found that this goes by the catchy name of LOBOS :-) From the kernel that the LinuxBIOS will boot, I don't need network, sound, or video support. I'd like to leave it up to the existing Linux installation on my hard drive to bring up these devices for me. Here's the specs on the board I am using: Northbridge: NForce2 Crush 18G IGP chipset Southbridge: MCP chipset / High-speed interface to the MCP OnBoard GFX: NVidia GeForce4 MX The board has support for TV composite signal-out which I will be using once the system is up and running, but since nVidia doesn't release specs or source for their hardware, I obviously can't use it during the BIOS phase. So I guess the real questions are: 1) Is it possible to build a LinuxBIOS that will run on my system? 2) If so, since the support for network, sound, and audio devices will not be present in the BIOS, can I still bring them up in my Linux kernel using the proprietary drivers distributed by nVidia? 3) If the above two scenarios are possible, could I throw my linux system currently on the hard drive into a NVRAM device and boot it from there to further reduce boot time? I appreciate your help with this. If you are interested in my senior project, there is information on my project website: www.novagameconsole.com Anything you can offer is greatly appreciated! Thanks! --------------------------------- Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com/a

3 2

i845GV ddr sdram init passed
by zhu shi song 03 Nov '04

03 Nov '04

After working hard for three day, I have made i845gv ddr sdram work well. I can boot linux 2.4.27 with root filesystem on my hard disk. But linux 2.4.27 support new hardware weakly. So I hope I can boot linux 2.6. I have before used initrd dyn invented by l inux router project to boot linux 2.4. I like the way booting linux. (1) Who knows can initrd dyn support linux 2.6. I know the latest version of initrd dyn is for linux2.5.54. (2) If unfortunately I can't use initrd dyn again, how can I make my root fs? how can I boot linux 2.6 using tar.gz file as root filesystem? tks zhu __________________________________ Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com

1 0

RE: tagging freebios2 tree
by YhLu 03 Nov '04

03 Nov '04

For DP Xeon MB, CONFIG_MAX_CPUS should be 4 or 2? It is used only by you said stack.... config/linuxbios_ram.ld: . = (CONFIG_MAX_CPUS * STACK_SIZE) ; cpu/x86/pae/pgtbl.c: static struct pg_table pgtbl[CONFIG_MAX_CPUS] __attribute__ ((aligned(4096))); cpu/x86/pae/pgtbl.c: static unsigned long mapped_window[CONFIG_MAX_CPUS]; cpu/x86/pae/pgtbl.c: if ((index < 0) || (index >= CONFIG_MAX_CPUS)) { YH -----Original Message----- From: ebiederman(a)lnxi.com [mailto:ebiederman@lnxi.com] Sent: Tuesday, November 02, 2004 5:06 PM To: Li-Ta Lo Cc: LinuxBIOS Subject: Re: tagging freebios2 tree Li-Ta Lo <ollie(a)lanl.gov> writes: > On Tue, 2004-08-24 at 19:07, Eric W. Biederman wrote: > > No quite I put the cpu_info structure at the bottom of the stack, > > and this function looks it up. > > > > The same idea has been used in the kernel for quite a while. > > > > Basically this allows me to preallocate some per cpu information > > and to pass that into cpu_initialize from another cpu. > > > > The linux kernel has been doing something similar for quite a while. > > > > Does cpu_info() return different value depends on which CPU it is > running ? Yes. The stack is per cpu and it returns a fixed address from the stack structure. > Are the data structures per CPU or shared between CPUs ? per-cpu. Which is the point. Eric _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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RE: Weird K8 output
by YhLu 03 Nov '04

03 Nov '04

I removed the udev and upos in ht_chains. Commited. CVS: ---------------------------------------------------------------------- CVS: Enter Log. Lines beginning with `CVS:' are removed automatically CVS: CVS: Committing in . CVS: CVS: Modified Files: CVS: src/mainboard/amd/quartet/auto.c CVS: src/mainboard/tyan/s2885/auto.c CVS: src/northbridge/amd/amdk8/incoherent_ht.c CVS: ----------------------------------------------------------------------

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coreboot November 2004