soc: intel_adsp: tools: cavstool.py: Look up the shell slot by type

Instead of using hardwired index for the shell debug slot, look it up by
it's type.

Signed-off-by: Peter Ujfalusi <[email protected]>

Author: ujfalusi

soc/intel/intel_adsp/tools/cavstool.py

@@ -37,6 +37,7 @@
 
 DEBUG_SLOT_SIZE = 4096
 DEBUG_SLOT_SHELL = 0
+DEBUG_SLOT_SHELL_TYPE = 0x73686c6c
 SHELL_RX_SIZE = 256
 SHELL_MAX_VALID_SLOT_SIZE = 16777216
 
@@ -769,7 +770,7 @@ def debug_slot_offset_by_type(the_type, timeout_s=0.2):
     return None
 
 def shell_base_offset():
-    return debug_offset() + DEBUG_SLOT_SIZE * (1 + DEBUG_SLOT_SHELL)
+    return debug_slot_offset_by_type(DEBUG_SLOT_SHELL_TYPE)
 
 def read_from_shell_memwindow_winstream(last_seq):
     offset = shell_base_offset() + SHELL_RX_SIZE