Hi Jakub,
I was able to pass boot_args from uboot till kernel.
The issue was i was looking in wrong direction.
After going through uboot for Netbsd i found the solution..
*Some assumptions i made i kernel.*
As no length is passed , i have taken max arguments size to be 4096 bytes.
I have used str_cpy in (arm32_pre_main) so that no buffer overflow happens.
I will come up with a structure to keep parsed arguments and a parser
function to collect the arguments separately.
Please give your opinion and suggestions so that i can make it better.
Regards,
Sourav Punoriyar
On Sun, Feb 26, 2017 at 4:29 AM, Jakub Jermář <ja...@jermar.eu> wrote:
> Hi Sourav,
>
> On 02/25/2017 08:59 PM, sourav punoriyar wrote:
> > Before Loading HelenOS
> > U-Boot# bdinfo
> > *arch_number = 0x00000E05*
> > boot_params = 0x80000100
> <snip>
> > After loading HelenOS
> > U-Boot# bootm 0x80007FC0 - {Booting HelenOS}
> > ## Transferring control to NetBSD stage-2 loader (at address 80000000)
> ...
> <snip>
> > I am just trying to read bdinfo , just to build confidence.
> > But, I am not getting the expected values :-(
> > I doubt is it something related to LOAD ADDRESS = 80000000 ?
> > beagebone _black Load = 80008000 ?
>
> Yes, the address to which the bbxm and bbone loader is linked seems to
> conflict with the address where u-boot puts the arguments. You can try
> moving the link/load address a little bit higher and see if it helps.
> See boot/arch/arm32/Makefile.inc.
>
> Jakub
>
> _______________________________________________
> HelenOS-devel mailing list
> HelenOS-devel@lists.modry.cz
> http://lists.modry.cz/listinfo/helenos-devel
>
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