2012/2/2 <[email protected]>: > Hi Edgar , >> > Thank you for your reply. >> > >> >> Please add the list in your reply, so everybody can benefit. > I did
Try OpenOCD, too :) >> >> > >> >> > I need to make some tests with Flash and SDRAM writing/reading via JTAG. >> >> > That is a reason why I need to find out a physical address range. >> >> >> >> Depending on your architecture, the bootloader most likely takes care of: >> >> - configure the SDRAM controller >> >> - remapping the memory addresses ranges, if necessary and supported >> >> - loading the linux kernel into RAM. >> >> >> >> If you have access to the sources of the bootloader, it might be easy >> >> to get some decent comments out of it. >> > Unfortunately not.I do not have access to the sources of the bootloader >> > >> >> Aren't you running UBoot, by any chance? > I was told it should be but not sure,How can I check that it is UBoot? Read the UBoot docs on how to get to the command prompt. If it's UBoot, you should have access to the source code, as UBoot is GPL. > > >> >> >> Also, if you want to perform your JTAG tests before the bootloader has >> >> been run, then you need to setup the memories yourself, via config >> >> scripts for OpenOCD. >> > I would like to perform the JTAG tests both before the bootloader has >> > been run and after as well. >> > Can you provide more details how to setup config scripts? >> >> Try to see if there is an existing config script very close to your >> hardware. Start with that and the datasheet for the CPU, SDRAM and >> FLASH and poke in the proper settings. Pretty tedious work. >> >> >> > Any further idea? >> >> >> >> What hardware platform are you trying to get tested? >> > Linux embeded system with MIPS, Broadcom CPU 7401 >> >> Is this on a development board, or a custom one? If it's a common >> board, somebody else might have done the work for you. > It is a satelite board with Broadcom CPU (MIPS) Google for your board and OpenOCD, maybe you are lucky. Also, read: http://openocd.sourceforge.net/doc/html/Config-File-Guidelines.html And read one of the OpenOCD configuration file for a board, preferably as close to yours as possible. Just to have an idea of what's in there. I hope you are getting closer to your answers. Edgar > > > Thanks for help > L. > >> If it's custom, >> you can trace how the bootloader ended up in the flash, most likely it >> happen via JTAG and you can get your hands on the config scripts. If >> none of this works, try looking in UBoot source code at the same time >> with the datasheet of the CPU, SDRAM and flash, most likely things >> will click in place. >> >> Edgar >> >> > Thanks for help >> > L >> > >> >> >> >> Edgar >> >> >> >> > Thanks >> >> > >> >> > >> >> > >> >> > >> >> >> Then use dmesg or cat /var/log/messages. >> >> >> Vaclav >> >> >> -- >> >> >> >> >> >> Uwe Bonnes <[email protected]> napsal(a): >> >> >> >> >> >> >>>>> "CeDeROM" == CeDeROM <[email protected]> writes: >> >> >> >> >> >> CeDeROM> On Wed, Feb 1, 2012 at 9:45 AM, <[email protected]> wrote: >> >> >> >> I have a Linux embeded device that consists CPU, BIOS,FLASH and >> >> >> >> SDRAM. Is there any way how to determine the memory address range >> >> >> >> for BIOS, flash and SDRAM? >> >> >> >> >> >> CeDeROM> Start Linux and see dmesg output :-) >> >> >> >> >> >> Hey, most distributions now show pretty picture when booting and not >> >> >> such >> >> >> useless information :-( >> >> >> -- >> >> >> Uwe Bonnes [email protected] >> >> >> >> >> >> Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt >> >> >> --------- Tel. 06151 162516 -------- Fax. 06151 164321 ---------- >> >> >> >> >> >> _____________________________________________ >> >> >> >> >> >> Keep Your Developer Skills Current with LearnDevNow! >> >> >> The most comprehensive online learning library for Microsoft developers >> >> >> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, >> >> >> MVC3, >> >> >> Metro Style Apps, more. Free future releases when you subscribe now! >> >> >> http://p.sf.net/sfu/learndevnow-d2d >> >> >> _____________________________________________ >> >> >> >> >> >> OpenOCD-devel mailing list >> >> >> [email protected] >> >> >> https://lists.sourceforge.net/lists/listinfo/openocd-devel >> >> >> >> >> >> >> >> > >> >> > >> >> > >> >> > ------------------------------------------------------------------------------ >> >> > Keep Your Developer Skills Current with LearnDevNow! >> >> > The most comprehensive online learning library for Microsoft developers >> >> > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >> >> > Metro Style Apps, more. Free future releases when you subscribe now! >> >> > http://p.sf.net/sfu/learndevnow-d2d >> >> > _______________________________________________ >> >> > OpenOCD-devel mailing list >> >> > [email protected] >> >> > https://lists.sourceforge.net/lists/listinfo/openocd-devel >> > >> > > > ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
