tree eaffd6c197f98721b38a699e8adf45db40b49179
parent df951c4039a1d54fdb3d9b4838c6e4fc8be53cd0
author Vikas Manocha <vikas.manocha@st.com> 1493854735 -0700
committer Tom Rini <trini@konsulko.com> 1494592626 -0400

armv7m: add MPU configuration support

Cortex-M archs support option memory protection unit (MPU). MPU is used
to set the memory types, attributes, access permissions for different regions,
cache policies of the device.

e.g. using MPU it is possible to configure memory region as device memory
or strongly ordered, memory attributes like execute never, cache policies
like write-back or write-through.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>