[U-Boot-Users] AT91 u-boot lowlevel init Dataflash

[Marco Cavallini]

Hi,
I am trying to use u-boot-1.1.4 with AT91RM9200 based board.
Using Parallel flash all works perfectly, but if I try using u-boot 
stored in Dataflash i face to some problems and comparing two cases I 
see that CPU clock are different.
Seems that is required a RomBoot provided by Atmel which launch u-boot.
Is it really necessary ?
Maybe I've miss an option that avoid RomBoot usage ?
CONFIG_SKIP_LOWLEVEL_INIT seems used only with parallel flash, what when 
  using Dataflash ?

Boot from Dataflash : define CONFIG_SKIP_LOWLEVEL_INIT 1
Machine: Atmel AT91RM9200
Memory policy: ECC disabled, Data cache writeback
Clocks: CPU 59 MHz, master 59 MHz, main 18.432 MHz
         ^^^^^^^^^^
Boot from Parallel flash : undef CONFIG_SKIP_LOWLEVEL_INIT
Machine: Atmel AT91RM9200
Memory policy: ECC disabled, Data cache writeback
Clocks: CPU 179 MHz, master 59 MHz, main 18.432 MHz
         ^^^^^^^^^^

Every hint will be appreciated
TIA
-- 
Marco Cavallini
Koan s.a.s. - Bergamo - ITALIA
Embedded and Real-Time Software Engineering
www.KoanSoftware.com   |    www.KaeilOS.com

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