From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Tue, 13 Sep 2005 08:45:34 +0200 Subject: [U-Boot-Users] Reset doesn't work on the 440EP Bamboo reference board In-Reply-To: References: Message-ID: <200509130845.34479.sr@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Youngchul, On Tuesday 13 September 2005 06:30, Youngchul Bang wrote: > I have been trying to get U-Boot and Linux running on the AMCC 440EP > "Bamboo" reference board. Most U-Boot commands are working. However, > I've got problems about reset command and switch. I just checked this problem with our bamboo board and a current U-Boot version: No problem here: Hit any key to stop autoboot: 0 => reset U-Boot 1.1.4 (Aug 24 2005 - 11:12:52) AMCC PowerPC 440EP Rev. B Board: Bamboo - AMCC PPC440EP Evaluation Board VCO: 800 MHz CPU: 400 MHz PLB: 100 MHz OPB: 50 MHz EPB: 25 MHz I2C: ready DRAM: 192 MB FLASH: 5 MB PCI: Bus Dev VenId DevId Class Int In: serial Out: serial Err: serial NAND: 64 MB Type "run flash_nfs" to mount root filesystem over NFS Hit any key to stop autoboot: 0 > First, reset command does not work except after cp.b command performed > (i.e. cp.b 100000 fff80000 80000). I don't know why it works well > after cp.b command. Reboot command in Linux doesn't work neither. > U-Boot version is 1.1.3 and Linux kernel is 2.6.13. Is it related to > the same reason? Hmmm. U-Boot version 1.1.3 covers over 1/2 year of code versions. Please use the current version (top cvs) and give it a nother try. As you may have noticed, the AMCC 4xx boards have received a major cleanup in the last weeks. > Second, the reset switch does not work. I've been confirmed that > SYSTEM_RESET line is getting pulled down when I push the reset switch. Do I understand this right: You push the reset button, and the board does not reset! Strange. > When I try to get PIBS instead of U-Boot on the same board, the above > problems haven't happened. > > Had the problems been discussed before in this list? I can't find any > of conversations about them. If so, give me the url please. No. > Let me know how to fix them up. See above. Try the current version and let me know, if the problem still occurs. Another question: Do you have a debugger connected while resetting the board? Best regards, Stefan