soc: intel_adsp: tools: improve FW boot handling on ace1.x
Starting with ace1.x, the boot status is no longer reported by
the boot ROM in the SRAM status window as it was done in older
platforms. The current cavstool.py code works on these newer platforms,
as Zephyr soc bootcode writes to same location, but this is not
the recommended boot flow.
Modify boot flow to use a dedicated register to observe boot
state. This change improves usability of cavstool.py on ace1.x
platforms as:
- it is possible to start cavstool.py (e.g. in log-only or shell mode)
while DSP has been already been booted, but is currently in
low-power mode (and SRAM window is not accessible from host)
- more reliable boot and better error reporting as actual ROM
status is observed
Furthermore, this change allows to remove the memory window
writes from Zephyr intel_adsp boot_complete(). This IPC interface
is application and IPC revision specific and the write should not
be done in generic Zephyr SoC code. However, to keep cavstool.py
working, the tool has to be updated first.
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
1 file changed
