Thanks for chatting. Regards,
john On Mon, Jun 6, 2011 at 3:26 PM, Wolfgang Denk <w...@denx.de> wrote: > Dear John Tobias, > > In message <banlktinn5oa711euoelqenrk2uyq1n4...@mail.gmail.com> you wrote: > > > > I am going to use the OTP register to put a unique ID of the board. In > order > > to do that, I don't have to boot the OS if I need to read/write the > unique > > ID of the board. > ... > > On Mon, Jun 6, 2011 at 2:12 PM, Wolfgang Denk <w...@denx.de> wrote: > ... > > > Could you please explain why this cannot be done in the OS driver > > > initialization code as well? > > Well, this is obviously nowhere needed for U-Boot operation, and you > also don't need this in U-Boot to boot your OS. > > See bullet # 2 at > http://www.denx.de/wiki/view/U-Boot/DesignPrinciples#2_Keep_it_Fast : > We don't initialize things in U-Boot, that are not needed here, unless > there is a very good reason for it. > > In your case, such initialization should be done in the OS device > driver. Leave it out of U-Boot. > > 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: w...@denx.de > Lots of folks confuse bad management with destiny. -- Frank Hubbard >
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