3 Dec
2013
3 Dec
'13
6:30 a.m.
Dear tejas patel,
In message CAPWFgSA88DJF_Jm9MKTu53kpiNb7kqNcnuG6EDbA_W1MfHZO9Q@mail.gmail.com you wrote:
I can not understand why u-boot relocate it self to RAM from flash? Why is it not executing from flash? Can anybody explain.
There is a ton of reasons. One is that you cannot erase or program the flash device and execute code from it at the same time, so we would not be able to write a Linux kernel image - at least not without special flash drivers that execute from RAM. And we would not be able to update the U-Boot image in flash. etc. etc.
In the end it is much easier to run from RAM.
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
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