[U-Boot-Users] PPC 405 walnut

[U-Boot-Users] PPC 405 walnut

[raj reddy]

My board is close to PPC405 Walnut board. But there is slight modification in the FLASH chip and SDRAM.
   
  -> FLASH chip on my custom board is AT49BV320C (flash interface 16Bits). How do I add this ATMEL chip driver to the u-boot.
  -> SDRAM controller not read from EEPROM , i want to hardcode the values of the SDRAM using the sdram_init (i.e sdram.c) function instead of the spd_sdram.c file. Do i need to change the function implimentation init_func_ram() in the board.c file.
   
  plz throw the light to resolve.....
   
  Regards,
  Entry. 

       
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[U-Boot-Users] PPC 405 walnut

[Wolfgang Denk]

In message <570161.51367.qm@web7707.mail.in.yahoo.com> you wrote:
> 
> My board is close to PPC405 Walnut board. But there is slight modification in the FLASH chip and SDRAM.

close is not close enough. You have to do your own port.

>   -> FLASH chip on my custom board is AT49BV320C (flash interface 16Bits). How do I add this ATMEL chip driver to the u-boot.

Is it CFI conform?

>   -> SDRAM controller not read from EEPROM , i want to hardcode the values of the SDRAM using the sdram_init (i.e sdram.c) function instead of the spd_sdram.c file. Do i need to change the function implimentation init_func_ram() in the board.c file.

init_func_ram() is a static function in "lib_ppc/board.c"  which  you
should keep your fingers off. it is not affected by a new board port.

> --0-1855522460-1188986846=:51367
> Content-Type: text/html; charset=iso-8859-1
> Content-Transfer-Encoding: 8bit

And never post HTML on this list, please!

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
If a group of N persons implements a COBOL compiler,  there  will  be
N-1 passes. Someone in the group has to be the manager. - T. Cheatham

[U-Boot-Users] PPC 405 walnut

[raj reddy]

--- Wolfgang Denk <wd@denx.de> wrote:

> In message
> <570161.51367.qm@web7707.mail.in.yahoo.com> you
> wrote:
> > 
> > My board is close to PPC405 Walnut board. But
> there is slight modification in the FLASH chip and
> SDRAM.
> 
> close is not close enough. You have to do your own
> port.
> 
> >   -> FLASH chip on my custom board is AT49BV320C
> (flash interface 16Bits). How do I add this ATMEL
> chip driver to the u-boot.
> 
> Is it CFI conform?

yes it's Command Flash Interface only. Hope i answered
to you correctely....
> 
> >   -> SDRAM controller not read from EEPROM , i
> want to hardcode the values of the SDRAM using the
> sdram_init (i.e sdram.c) function instead of the
> spd_sdram.c file. Do i need to change the function
> implimentation init_func_ram() in the board.c file.
> 
> init_func_ram() is a static function in
> "lib_ppc/board.c"  which  you
> should keep your fingers off. it is not affected by
> a new board port.
> 
> > --0-1855522460-1188986846=:51367
> > Content-Type: text/html; charset=iso-8859-1
> > Content-Transfer-Encoding: 8bit
> 
> And never post HTML on this list, please!
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> DENX Software Engineering GmbH,     MD: Wolfgang
> Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194
> Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80
> Email: wd at denx.de
> If a group of N persons implements a COBOL compiler,
>  there  will  be
> N-1 passes. Someone in the group has to be the
> manager. - T. Cheatham
> 



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[U-Boot-Users] PPC 405 walnut

[raj reddy]

--- Wolfgang Denk <wd@denx.de> wrote:

> In message
> <570161.51367.qm@web7707.mail.in.yahoo.com> you
> wrote:
> > 
> > My board is close to PPC405 Walnut board. But
> there is slight modification in the FLASH chip and
> SDRAM.
> 
> close is not close enough. You have to do your own
> port.
> 
> >   -> FLASH chip on my custom board is AT49BV320C
> (flash interface 16Bits). How do I add this ATMEL
> chip driver to the u-boot.
> 
> Is it CFI conform?

yes it Command Flash Interface only..I request someone
to please throw light to comeout of this loop.... 
> 
> >   -> SDRAM controller not read from EEPROM , i
> want to hardcode the values of the SDRAM using the
> sdram_init (i.e sdram.c) function instead of the
> spd_sdram.c file. Do i need to change the function
> implimentation init_func_ram() in the board.c file.
> 
> init_func_ram() is a static function in
> "lib_ppc/board.c"  which  you
> should keep your fingers off. it is not affected by
> a new board port.
> 
> > --0-1855522460-1188986846=:51367
> > Content-Type: text/html; charset=iso-8859-1
> > Content-Transfer-Encoding: 8bit
> 
> And never post HTML on this list, please!
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> DENX Software Engineering GmbH,     MD: Wolfgang
> Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194
> Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80
> Email: wd at denx.de
> If a group of N persons implements a COBOL compiler,
>  there  will  be
> N-1 passes. Someone in the group has to be the
> manager. - T. Cheatham
> 



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