boards: up_squared_adsp: Update mailbox terminal

Update permissions for mmap. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
zephyrproject-rtos · Aug 5, 2020 · 0944b46 · 0944b46
1 parent c2ba411
commit 0944b46
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/boards/xtensa/up_squared_adsp/tools/mbterm.py b/boards/xtensa/up_squared_adsp/tools/mbterm.py
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 from time import sleep
-from mmap import mmap
+from mmap import mmap, ACCESS_COPY
 from ctypes import c_uint8
 
 from lib.device import Device
@@ -14,8 +14,8 @@
 MBOX = 0x91281000
 LENGTH = 0x1000
 
-with open("/dev/mem", "r+b") as f:
-    mem_map = mmap(f.fileno(), LENGTH, offset=MBOX)
+with open("/dev/mem", "rb") as f:
+    mem_map = mmap(f.fileno(), LENGTH, access=ACCESS_COPY, offset=MBOX)
     mem = (c_uint8 * LENGTH).from_buffer(mem_map)
 
 def mailbox_poll_mem(dev):