commit 1e0c54429d08297662647c0b7deaa6b91867aa6b
author David Vincze <david.vincze@linaro.org> Tue Apr 07 14:12:33 2020 +0200
committer David Brown <davidb@davidb.org> Fri Apr 10 15:31:25 2020 -0600
tree 13f841550d441491363439a08ab5f3139de214e7
parent 7973f573b7991620dded2722f5b6334397d8901a

imgtool: Set RAM_LOAD flag in header when needed

Set the RAM_LOAD flag in the image header when a load address was passed
to the imgtool script, indicating that the image should be loaded into
RAM and run from there.

Change-Id: Id9d2c179d7fa1ff7d15cf671c09c61b5b78c88a8
Signed-off-by: David Vincze <david.vincze@linaro.org>

scripts/imgtool/image.py

diff --git a/scripts/imgtool/image.py b/scripts/imgtool/image.py
index 14265d5..acb1794 100644
--- a/scripts/imgtool/image.py
+++ b/scripts/imgtool/image.py
@@ -50,6 +50,7 @@
 IMAGE_F = {
         'PIC':                   0x0000001,
         'NON_BOOTABLE':          0x0000010,
+        'RAM_LOAD':              0x0000020,
         'ENCRYPTED':             0x0000004,
 }
 
@@ -432,6 +433,10 @@
         flags = 0
         if enckey is not None:
             flags |= IMAGE_F['ENCRYPTED']
+        if self.load_addr != 0:
+            # Indicates that this image should be loaded into RAM
+            # instead of run directly from flash.
+            flags |= IMAGE_F['RAM_LOAD']
 
         e = STRUCT_ENDIAN_DICT[self.endian]
         fmt = (e +