commit 0d1b0b952ea043963077a0cc40c1ba7e89da5dd9
author David Brown <david.brown@linaro.org> Wed Jul 26 00:34:56 2017 -0600
committer David Brown <davidb@davidb.org> Wed Jul 26 18:42:29 2017 -0600
tree b7f8893da4973f7a08da4cde2103f81e9c5563ff
parent 84a67af32c0b6a248fb0e973e90592d4a70b6c16

zephyr: Enable MPU flash writing

Recent Zephyr trees require this config option to be set in order to be
able to write to the flash device.  Without it, targets with an MPU
enabled will abort during startup, usually before even printing a
message to the UART.

Signed-off-by: David Brown <david.brown@linaro.org>

boot/zephyr/prj.conf

diff --git a/boot/zephyr/prj.conf b/boot/zephyr/prj.conf
index caf48f9..515bd55 100644
--- a/boot/zephyr/prj.conf
+++ b/boot/zephyr/prj.conf
@@ -12,6 +12,7 @@
 CONFIG_HEAP_MEM_POOL_SIZE=16384
 
 CONFIG_FLASH=y
+CONFIG_MPU_ALLOW_FLASH_WRITE=y
 
 ### Disable Bluetooth by default
 # CONFIG_BLUETOOTH is not set