Dear Denk, Thanks for your suggestion. Now i have migrated to uboot v2011.06-rc2 and the booting sequece is working fine. But the problem still i am facing is not able access the external periherals like NVRAM and ADC, DAC etc. What minimum initializations to be done for that.

Thanks in advance

Regards, Suresh

On 6/20/11, Wolfgang Denk wd@denx.de wrote:

Dear suresh kumar,

In message BANLkTik0R4ho5d_9XK3iG1ywgJZB=qYyBQ@mail.gmail.com you wrote:

...

I am using a PPC 440EP processor based custom designed board which is based on AMCC's Yosemite as reference design. I have ported u-boot-1.1.6 onto it. It is working fine but not able to

U-Boot 1.1.6 is more than 5 years old, i. e. it predates the stone age. We don;t support this any more.

Please update to current code (v2011.06-rc2 or later).

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@denx.de It's hard to make a program foolproof because fools are so ingenious.