From mboxrd@z Thu Jan 1 00:00:00 1970 From: Detlev Zundel Date: Thu, 15 Nov 2007 18:06:38 +0100 Subject: [U-Boot-Users] udelay make at91sam9260 board freeze In-Reply-To: <13751461.post@talk.nabble.com> (Gonzague GENET's message of "Wed\, 14 Nov 2007 09\:05\:10 -0800 \(PST\)") References: <13751461.post@talk.nabble.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Gonzague, > Strange problem indeed. > U-boot freeze when I do fatload instruction. After several investigation, > the crash appear during the udelay instruction..... > But if i replace the original code of udelay instruction by a simple for > loop, it works.... > Any ideas ? Does the board freeze or is it really a veerrry long delay? I am tempted to say it is the latter. If you check the archives you will see that there is always a mist of confusion around CFG_HZ and related defines which udelay uses (cpu/arm920t/at91rm9200/interrupts.c). So I suggest to check the values used there on your platform (CFG_HZ should be 1000 btw.) and find out why udelay spins too long. Having done that, send a patch and rejoice! Best wishes Detlev -- System going down at 1:45 this afternoon for disk crashing. -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de