we have custom board based on Sama5d3x-ek. We have two modes of operation.
1. AT91Bootstrap -> U-boot -> Kernel
2. AT91Bootstrap -> Kernel
We test what happens if we toggle power on and off in short time. The second mode works fine but in the first mode sometimes it happens that the cpu freezes after the debug output "Done to load image". The reset line is low and the cpu nothing seems to do and dont react on resets. Only a switch off of the power supply restarts the board.
Any ideas why this only happens if the u-boot is involved in the boot procedure?
Discussion around products based on ARM Cortex-A5 core.
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