From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?Q?Beno=C3=AEt_Th=C3=A9baudeau?= Date: Fri, 14 Sep 2012 19:32:50 +0200 (CEST) Subject: [U-Boot] Don't get any interrupts once I boot into Linux In-Reply-To: Message-ID: <409227736.4410896.1347643970603.JavaMail.root@advansee.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Friday, September 14, 2012 7:04:14 PM, Greg Topmiller wrote: > SoC: i.MX51 > Board: mx51evk and our own board that is based on the mx51evk. > Linux: FSL version. Perfect, so we are in exactly the same test conditions, except for mx51evk. Can you try mx51evk with U-Boot 2012.07 and mainline Linux 3.5.3, using the default configs and unpatched code? My debug plan for the next steps is: - Find out if FSL's U-Boot 2009.12 touches TZIC in some way. - Using a JTAG probe in the calibrate_delay() loop, dump TZIC registers to check GPT interrupt security, priority, pending status, FIQ vs. IRQ vs. CPSR and wakeup stuff. - If not pending, then the issue probably comes from the GPT; otherwise, from interrupt propagation. - Use the TZIC registers to trigger the GPT interrupt to see if the handler gets called. Best regards, Beno?t