From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marco Cavallini Date: Mon, 05 Jun 2006 18:43:18 +0200 Subject: [U-Boot-Users] AT91 u-boot lowlevel init Dataflash Message-ID: <44845F26.90504@koansoftware.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 Informativa D.Lgs 196/2003 (Privacy) http://www.koansoftware.com/it/prf_privacy.htm