On Tue, Apr 24, 2018 at 06:24:43PM +0530, Lokesh Vutla wrote:
The Cortex-R* processors are a mid-range CPUs for use in deeply-embedded, real-time systems. It implements the ARMv7-R architecture, and includes Thumb-2 technology for optimum code density and processing throughput.
Except for MPU(Memory Protection Unit) and few CP15 registers, most of the features are compatible with v7 architecture. This series adds minimal support for v7-R architecture by reusing the v7 support. Also adding support for MPU.
There's some whitespace issues that I'm sure you'll fix for the next version. One naming thing that I think needs a little work is that we say CONFIG_ARM_MPU (which is OK'ish, can we use something a little more specific? It's a V7 architectural thing, yes?) but then v7m_mpu.h, even tho we use it on both v7r and v7m as there's just a few differences. That should get consolidated, off the top of my head, to CONFIG_CPU_V7_HAS_MPU (following other things like virt) and maybe v7_mpu.h ?