debug: breadcrumbs in kernel dmesg for IPC timeouts..#10983
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Enable CONFIG_XTENSA_ADSP_FATAL_BREADCRUMB in the debug overlay so debug builds record the faulting PC/cause/vaddr into HP-SRAM window0, making a crash visible in the host dmesg "Firmware state" line when no console or mtrace output is available. The option defaults to n, so production builds (which do not pull in this overlay) are unaffected. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Update the west manifest to pull the zephyr repository from lgirdwood/zephyr's fork on the ptl-breadcrumb branch (revision 53c5faa286d011acc635a6d98b7ab41648a0b379). Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
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Very useful for agents, links into double and triple fault handlers and on Intel HW will insert exception data into SoC "SW registers" that are always printed in dmesg for IPC timeouts.
Zephyr PR pending.