tf-a-stm32mp: set the monotonic counter by using the incremental commit counts of this meta layer

Author: embetrix

recipes-bsp/trusted-firmware-a/tf-a-stm32mp_2.8.bb

@@ -49,7 +49,8 @@ EXTRA_OEMAKE += "STM32MP1_OPTEE_IN_SYSRAM=1"
 EXTRA_OEMAKE += "DTB_FILE_NAME=${TFA_DEVICETREE}.${DT_SUFFIX}"
 
 # Monotonic counter to be incremented and prevent bootloader rollback
-TFA_MONOTONIC_CNTR ?= "1"
+# will be set automatically from incremental commit counts of this repo
+TFA_MONOTONIC_CNTR ?= "${@(str(os.popen('git rev-list --count HEAD -C ' + (d.getVar('TOPDIR') or '')).read().strip() or '1'))}"
 EXTRA_OEMAKE += "STM32_TF_VERSION=${TFA_MONOTONIC_CNTR}"
 
 # FIP signing configuration
@@ -66,7 +67,8 @@ do_compile:prepend() {
 
 # Generate FIP
 do_compile:append() {
-
+    bbwarn "STM32MP15X_BASE: ${STM32MP15X_BASE}"
+    bbwarn "TFA_MONOTONIC_CNTR: ${TFA_MONOTONIC_CNTR}"
     if ${@bb.utils.contains('MACHINE_FEATURES', 'optee', 'true', 'false', d)}; then
         oe_runmake fip 	\
             BL32=${DEPLOY_DIR_IMAGE}/optee/${OPTEE_HEADER}-${OPTEE_CONF}.${OPTEE_SUFFIX} \