RE: kernel porting query
On Fri, 2007-02-16 at 07:46 +0530, Rick Brown wrote: Your quoting style sucks. I fixed it by hand. [...] > > 1) Can any one please shed some light on precisely and exactly what are > > differences in different boards for which we need to port linux? > On Fri, 2007-02-16 at 09:48 +0530, Ajay Singh (ajaysi) wrote: > The differences depends on the boards ... Mostly if they belong to the > same family the differences could be mainly in the peripherials ... > Interrupt mappings... Serial interface ... Memory sizes (if differnet > boards have different memory sizes) ... Sometimes some devices may be > moved to some other locations in the memory map (Look at memory map of > your SoC on your board). You may have different boot loaders (or none at all). You also may have different storage media like FlashRAM, IDE, network, for boot loader/kernel/root filesystem. They may have different sizes and it makes a "little" difference for your requirements in the toolchain if you have 4MB or 1GB to boot your system from. All that kind of information can be found in a BSP (board support package). Bernd -- Firmix Software GmbH http://www.firmix.at/ mobil: +43 664 4416156 fax: +43 1 7890849-55 Embedded Linux Development and Services - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: kernel porting query
On Fri, 2007-02-16 at 07:46 +0530, Rick Brown wrote: Your quoting style sucks. I fixed it by hand. [...] 1) Can any one please shed some light on precisely and exactly what are differences in different boards for which we need to port linux? On Fri, 2007-02-16 at 09:48 +0530, Ajay Singh (ajaysi) wrote: The differences depends on the boards ... Mostly if they belong to the same family the differences could be mainly in the peripherials ... Interrupt mappings... Serial interface ... Memory sizes (if differnet boards have different memory sizes) ... Sometimes some devices may be moved to some other locations in the memory map (Look at memory map of your SoC on your board). You may have different boot loaders (or none at all). You also may have different storage media like FlashRAM, IDE, network, for boot loader/kernel/root filesystem. They may have different sizes and it makes a little difference for your requirements in the toolchain if you have 4MB or 1GB to boot your system from. All that kind of information can be found in a BSP (board support package). Bernd -- Firmix Software GmbH http://www.firmix.at/ mobil: +43 664 4416156 fax: +43 1 7890849-55 Embedded Linux Development and Services - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: kernel porting query
1) Can any one please shed some light on precisely and exactly what are differences in different boards for which we need to port linux? The differences depends on the boards ... Mostly if they belong to the same family the differences could be mainly in the peripherials ... Interrupt mappings... Serial interface ... Memory sizes (if differnet boards have different memory sizes) ... Sometimes some devices may be moved to some other locations in the memory map (Look at memory map of your SoC on your board). 2) Also, I would appreciate if you could point out code portions / source files that need to be changed in the process of porting Linux? Look in linux-2.6.20\arch\mips\mips-boards for help on porting to your board. You can add directory specific to your board here. I think you can start from xxx_setup.c file in the above directory. Good luck. Ajay. TIA, Rick -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: kernel porting query
snip 1) Can any one please shed some light on precisely and exactly what are differences in different boards for which we need to port linux? The differences depends on the boards ... Mostly if they belong to the same family the differences could be mainly in the peripherials ... Interrupt mappings... Serial interface ... Memory sizes (if differnet boards have different memory sizes) ... Sometimes some devices may be moved to some other locations in the memory map (Look at memory map of your SoC on your board). 2) Also, I would appreciate if you could point out code portions / source files that need to be changed in the process of porting Linux? Look in linux-2.6.20\arch\mips\mips-boards for help on porting to your board. You can add directory specific to your board here. I think you can start from xxx_setup.c file in the above directory. Good luck. Ajay. TIA, Rick -- To unsubscribe from this list: send an email with unsubscribe kernelnewbies to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
