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.
Travis-ci build report: https://travis-ci.org/lokeshvutla/u-boot/builds/371442638
Changes since v1: - Renamed file armv7m_mpu.h to armv7_mpu.h - Removed an unnecessary guard for an include
Changes since RFC: - Renamed CPUV7 as CPU_V7A - Renamed MMU as SYS_ARM_MMU - Added SYS_ARM_CACHE_CP15
Lokesh Vutla (6): arm: v7: Update VBAR only if available arm: v7: Kconfig: Rename CPU_V7 as CPU_V7A arm: v7: Kconfig: Add entry for MMU arm: v7: Kconfig: Introduce SYS_ARM_CACHE_CP15 arm: v7R: Add support for MPU arm: v7R: Add support for enabling caches
Michal Simek (1): arm: v7R: Add initial support
arch/arm/Kconfig | 95 ++++++++++++++++------ arch/arm/Makefile | 8 +- arch/arm/cpu/armv7/Kconfig | 4 +- arch/arm/cpu/armv7/Makefile | 2 + arch/arm/cpu/armv7/mpu_v7r.c | 120 +++++++++++++++++++++++++++ arch/arm/cpu/armv7/start.S | 4 + arch/arm/cpu/armv7m/Makefile | 3 +- arch/arm/cpu/armv7m/mpu.c | 43 +--------- arch/arm/include/asm/armv7_mpu.h | 131 ++++++++++++++++++++++++++++++ arch/arm/include/asm/armv7m_mpu.h | 67 --------------- arch/arm/include/asm/system.h | 4 +- arch/arm/lib/Makefile | 6 +- arch/arm/lib/cache-cp15.c | 14 +++- arch/arm/mach-at91/Kconfig | 12 +-- arch/arm/mach-at91/Makefile | 2 +- arch/arm/mach-at91/config.mk | 2 +- arch/arm/mach-bcm283x/Kconfig | 4 +- arch/arm/mach-exynos/Kconfig | 4 +- arch/arm/mach-exynos/Makefile | 2 +- arch/arm/mach-exynos/soc.c | 2 +- arch/arm/mach-mvebu/Kconfig | 2 +- arch/arm/mach-qemu/Kconfig | 2 +- arch/arm/mach-rmobile/Kconfig | 2 +- arch/arm/mach-rockchip/Kconfig | 12 +-- arch/arm/mach-stm32/soc.c | 2 +- arch/arm/mach-stm32mp/Kconfig | 2 +- arch/arm/mach-sunxi/Kconfig | 22 ++--- arch/arm/mach-tegra/Kconfig | 2 +- arch/arm/mach-uniphier/Kconfig | 2 +- arch/arm/mach-uniphier/Makefile | 2 +- cmd/Kconfig | 2 +- drivers/serial/arm_dcc.c | 2 +- 32 files changed, 392 insertions(+), 191 deletions(-) create mode 100644 arch/arm/cpu/armv7/mpu_v7r.c create mode 100644 arch/arm/include/asm/armv7_mpu.h delete mode 100644 arch/arm/include/asm/armv7m_mpu.h