Query about arch/arm/boot/compressed/Makefile.debug

Query about arch/arm/boot/compressed/Makefile.debug

[rocky]

Hi, all
I'm porting Linux to a ARM1176 based SOC, sometimes after running make zImage, 
I got CRC error when uncompressing the kernel all the time.

no idea why this should happened, i want to use misc.c with STANDALONE_DEBUG mode, 
so how should i use this debug mode?


thanks 
BR
rocky

Query about arch/arm/boot/compressed/Makefile.debug

[Eric Miao]

On Thu, Jun 3, 2010 at 1:39 PM, rocky <bill_carson@126.com> wrote:
> Hi, all
> I'm porting Linux to a ARM1176 based SOC, sometimes after running make zImage,
> I got CRC error when uncompressing the kernel all the time.

Conduct a strict memory checking and check the cache enabling code, normally
that's where the problem is. The decompressor itself, should be less problematic
since it's working elsewhere on most other platforms.

>
> no idea why this should happened, i want to use misc.c with STANDALONE_DEBUG mode,
> so how should i use this debug mode?
>
>
> thanks
> BR
> rocky
>
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>

Query about arch/arm/boot/compressed/Makefile.debug

[rocky]

Hi, Eric

>Conduct?a?strict?memory?checking?and?check?the?cache?enabling?code,?normally
>that's?where?the?problem?is.?The?decompressor?itself,?should?be?less?problematic
>since?it's?working?elsewhere?on?most?other?platforms.

All ARM1176 based SoC share the same cache enable/disable API which defined in arch/arm/boot/compressed/head.S, ARM1176 falls into ARMv7 .

Actually, our DDR run at 800MHz, I'm trying to tune it a little bit lower at 533MHz to see what happened.

thanks for your kind tips.

rocky










?2010-06-03?13:47:00?"Eric?Miao"?<eric.y.miao@gmail.com>????>On?Thu,?Jun?3,?2010?at?1:39?PM,?rocky?<bill_carson@126.com>?wrote:>>?Hi,?all>>?I'm?porting?Linux?to?a?ARM1176?based?SOC,?sometimes?after?running?make?zImage,>>?I?got?CRC?error?when?uncompressing?the?kernel?all?the?time.>>Conduct?a?strict?memory?checking?and?check?the?cache?enabling?code,?normally>that's?where?the?problem?is.?The?decompressor?itself,?should?be?less?problematic>since?it's?working?elsewhere?on?most?other?platforms.>>>>>?no?idea?why?this?should?happened,?i?want?to?use?misc.c?with?STANDALONE_DEBUG?mode,>>?so?how?should?i?use?this?debug?mode?>>>>>>?thanks>>?BR>>?rocky>>>>>>>>?_______________________________________________>>?linux-arm-kernel?mailing?list>>?linux-arm-kernel at lists.infradead.org>>?http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>>