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zephyr: turn off I2C 

Upstream Zephyr is making a habit of enabling subsystems on any board
that supports them. That's a potential security risk if any of those
allow interference with the running bootloader, and is currently
exceeding mcuboot's flash allowance on some STM32 targets,
e.g. 96b_carbon. Turn off I2C to restore the build for those.

Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
This commit is contained in:
Marti Bolivar 2017-08-30 18:39:07 -04:00 committed by David Brown
parent 4094813181
commit f4d0e1adf2
1 changed files with 4 additions and 3 deletions
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7
boot/zephyr/prj.conf
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@ -14,7 +14,8 @@ CONFIG_HEAP_MEM_POOL_SIZE=16384
CONFIG_FLASH=y CONFIG_FLASH=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y CONFIG_MPU_ALLOW_FLASH_WRITE=y
### Disable Bluetooth by default
# CONFIG_BT is not set
CONFIG_MULTITHREADING=n CONFIG_MULTITHREADING=n
### Zephyr keeps turning on major subsystems by default that we don't want.
# CONFIG_BT is not set
# CONFIG_I2C is not set