Initial support for ARM Cortex-R #9316
I have started work for Cortex-R4 support for a project my company is doing. This PR represents work that gets the "shell" sample working on an R4. Basic context switching and interrupts using an R4 connected to a GIC400 are working.
The work and testing were done on a custom SoC so the PR does not include the SoC code since it won't be very useful to anyone.
Signed-off-by: Bradley Bolen email@example.com
@@ Coverage Diff @@ ## master #9316 +/- ## ========================================= Coverage ? 52.92% ========================================= Files ? 309 Lines ? 45268 Branches ? 10451 ========================================= Hits ? 23956 Misses ? 16544 Partials ? 4768