[ECOS] Strata Flash access problem

Andrew Lunn andrew@lunn.ch
Mon Dec 1 05:56:00 GMT 2008


On Mon, Dec 01, 2008 at 10:15:24AM +0530, Zaahir wrote:
> Hello,
>
> Thanks for ur support I was able to modify the platform.h file.
> I am using customized iMx27ADS board.
> Using Redboot src provided by FreeScale.
>
> Version-----> (redboot_200749)
> (Non-certified release, version FSL 200749
> Platform: MX27 ADS/EVB (Freescale i.MX27 based) PASS 2.1 [x32 SDR])
>
> With that support (platform.h) modification.
> we are able to detect Intel Strata Flash  JS48F4400VB00s.
> Its a 64MB (2-die)  flash. Each die of 32MB
>
> We are able to accesses  Lower 32MB of Flash (0xC000 0000 - 0xC1FFFFFF).
>
> Our flash is address from 0xC000 0000 to 0xC400 0000
>
> When we are trying to access upper 32MB getting error illegal memory  
> access .
>
> ... Unlock from 0xc3fe0000-0xc4000000: ** command abort - illegal memory  
> access?
>
> ... Erase from 0xc2000000-0xc2020000: ** command abort - illegal memory  
> access?

Probably your MMU is blocking access.

         Andrew

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss



More information about the Ecos-discuss mailing list