Trying to get the git kernel running on our in-house board and have an unpleasant crash somewhere between kernel start and console output, with code jumping off to 0xffff000c.
This is using u-boot v2010.03 and kernel based on davinci master at 5954dd1d2cab4b378e22256edbfe132bf4f82f22 Sympoms are; this is the last output I get on the console: Starting kernel ... Uncompressing Linux... done, booting the kernel. If I now halt the CPU over JTAG it tells me: target halted in ARM state due to debug-request, current mode: Abort cpsr: 0x200000d7 pc: 0xffff000c MMU: enabled, D-Cache: enabled, I-Cache: enabled I tried both the vanilla EVM versions of bootloader and kernel, and in-house modified (for different pinmuxing, board file etc). Both combinations boot OK on the DM355EVM, both crash in the same way on our in-house board. This in-house board and many like it were previously running a MontaVista (DM355 Beta SDK) based setup, so is capable of running linux and the board design should be sound. There is no UBL on the board at present: I am doing initial setup and loading u-boot over JTAG with OpenOCD. I stepped through the code enough to determine that the uncompress, relocate and jump to kernel (and several instructions after) seems OK. I am looking into the ARM ETM/ETB + OpenOCD hoping that could give me a trace of how I end up at 0xffff000c but not having any joy with that so far. Inspiration for approaches to debugging this problem would be much appreciated, running low on ideas. Thanks, -- Jon Povey [email protected] Racelogic is a limited company registered in England. Registered number 2743719 . Registered Office Unit 10, Swan Business Centre, Osier Way, Buckingham, Bucks, MK18 1TB . The information contained in this electronic mail transmission is intended by Racelogic Ltd for the use of the named individual or entity to which it is directed and may contain information that is confidential or privileged. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email so that the sender's address records can be corrected. The views expressed by the sender of this communication do not necessarily represent those of Racelogic Ltd. Please note that Racelogic reserves the right to monitor e-mail communications passing through its network _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
