[U-Boot] Can not erase first 2 sectors on flash

[Chen Wen]

Thanks for your advice!!
When I try to erase across flash bank, I get error message before.
"Error: cannot span across banks when they are mapped in reverse order"

Now I fix the order of banks.
And I can erase sector across flash bank now.

But I still found that I can not erase first two sector.

On Mon, Jun 14, 2010 at 4:35 PM, Detlev Zundel <dzu at denx.de> wrote:

> Hi Chen Wen,
>
> you should use the u-boot at lists.denx.de address for the emailing
> list. -owner only reaches the moderators of the list.
>
>
> > I have a platform modify from powerpc 405EP(Taihu evb).
> > I try to port u-boot from Taihu evb by using "taihu_config".
> >
> > There are 4M+4M flash on the board, but I found that I can not erase
> flash
> > from ff800000--ff803fff.I had try "protect off all" and "erase all", but
> > still don't work.
> >
> > just like this :
> > => era ff800000 ff803fff
> >
> > .. done
> > Erased 2 sectors
> > => md ff800000
> > ff800000: 27051956 682e4eec 4c070a61 00168502    '..Vh.N.L..a....
> > ff800010: 00000000 00000000 ad640a83 05070201    .........d......
> > ff800020: 4c696e75 782d322e 362e3332 2e330000    Linux-2.6.32.3..
> > ff800030: 00000000 00000000 00000000 00000000    ................
> > ff800040: 1f8b0808 600a074c 0203766d 6c696e75    ....`..L..vmlinu
> > ff800050: 782e6269 6e2e3136 39363100 e45b0f70    x.bin.16961..[.p
> > ff800060: 14559aff 7a7a0213 08cb0881 0d24988e    .U..zz.......$..
> >
> >
> > "erase" command works every where on flash besides "ff800000--ff803fff"
> > Thus I can still erase "ff800000--ff803fff" by using a JTAG.
> > Is there anything wrong in my config(in attachment) ?
> >
> >
> >
> > This is my flinfo
> >
> ==================================================================================
> > Bank # 1: CFI conformant FLASH (16 x 16)  Size: 4 MB in 71 Sectors
> >   AMD Standard command set, Manufacturer ID: 0xC2, Device ID: 0x22A8
> >   Erase timeout: 16384 ms, write timeout: 1 ms
> >
> >   Sector Start Addresses:
> >   FFC00000        FFC02000        FFC04000        FFC06000
>  FFC08000
> >   FFC0A000        FFC0C000        FFC0E000        FFC10000
>  FFC20000
> >   FFC30000        FFC40000        FFC50000        FFC60000
>  FFC70000
> >   FFC80000        FFC90000        FFCA0000        FFCB0000
>  FFCC0000
> >   FFCD0000        FFCE0000        FFCF0000        FFD00000
>  FFD10000
> >   FFD20000        FFD30000        FFD40000        FFD50000
>  FFD60000
> >   FFD70000        FFD80000        FFD90000        FFDA0000
>  FFDB0000
> >   FFDC0000        FFDD0000        FFDE0000        FFDF0000
>  FFE00000
> >   FFE10000        FFE20000        FFE30000        FFE40000
>  FFE50000
> >   FFE60000        FFE70000        FFE80000        FFE90000
>  FFEA0000
> >   FFEB0000        FFEC0000        FFED0000        FFEE0000
>  FFEF0000
> >   FFF00000        FFF10000        FFF20000        FFF30000
>  FFF40000
> >   FFF50000        FFF60000        FFF70000        FFF80000
>  FFF90000
> >   FFFA0000   RO   FFFB0000   RO   FFFC0000   RO   FFFD0000   RO
> FFFE0000   RO
> >   FFFF0000   RO
> >
> > Bank # 2: CFI conformant FLASH (16 x 16)  Size: 4 MB in 71 Sectors
> >   AMD Standard command set, Manufacturer ID: 0xC2, Device ID: 0x22A8
> >   Erase timeout: 16384 ms, write timeout: 1 ms
> >
> >   Sector Start Addresses:
> >   FF800000        FF802000        FF804000        FF806000
>  FF808000
> >   FF80A000        FF80C000        FF80E000        FF810000
>  FF820000
> >   FF830000        FF840000        FF850000        FF860000
>  FF870000
> >   FF880000        FF890000        FF8A0000        FF8B0000
>  FF8C0000
> >   FF8D0000        FF8E0000        FF8F0000        FF900000
>  FF910000
> >   FF920000        FF930000        FF940000        FF950000
>  FF960000
> >   FF970000        FF980000        FF990000        FF9A0000
>  FF9B0000
> >   FF9C0000        FF9D0000        FF9E0000        FF9F0000
>  FFA00000
> >   FFA10000        FFA20000        FFA30000        FFA40000
>  FFA50000
> >   FFA60000        FFA70000        FFA80000        FFA90000
>  FFAA0000
> >   FFAB0000        FFAC0000        FFAD0000        FFAE0000
>  FFAF0000
> >   FFB00000        FFB10000        FFB20000        FFB30000
>  FFB40000
> >   FFB50000        FFB60000        FFB70000        FFB80000
>  FFB90000
> >   FFBA0000        FFBB0000        FFBC0000        FFBD0000
>  FFBE0000
> >   FFBF0000
> > =>
> >
> ==================================================================================
>
> It seems the second flash bank is mapped _behind_ the first one.  It may
> well be that the code does not expect such a situation, so try to
> reverse this.
>
> Cheers
>  Detlev
>
> --
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>                                        -- Woody Allen
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