[U-Boot-Users] CFG_NO_FLASH configuration parameter

Wolfgang Denk wd at denx.de
Thu Feb 23 13:21:07 CET 2006

In message <006d01c63871$b26c26d0$9e01120a at bilisim.local> you wrote:
> if CFG_NO_FLASH is defined, as you said, means there are no flash
> memories, where do initial boot instructions located? 

For example in RAM. Think of a PCI card which is plugged  in  a  host
system,  where  the  host runs some software to upload some code into
the PCI card's memory which then gets executed. See  the  PN62  board
for such a configuration.

There are several other methods to load U-Boot into RAM - for example
by using an initial bootstrap loader as used on some system  to  boot
from NAND flash or dataflash.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"One planet is all you get."

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