From f4bcd767bdc0925528e66974af7575a5796aaab7 Mon Sep 17 00:00:00 2001 From: Lokesh Vutla <lokeshvutla@ti.com> Date: Thu, 26 Apr 2018 18:21:28 +0530 Subject: [PATCH] arm: v7: Kconfig: Introduce SYS_ARM_CACHE_CP15 Certain ARM architectures like ARMv7-A, ARMv7-R has support for enabling caches using CP15 registers. To have a common support for all these architectures, introduce a Kconfig symbol SYS_ARM_CACHE_CP15 that selects cache-cp15.c Tested-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> --- arch/arm/Kconfig | 7 +++++++ arch/arm/lib/Makefile | 6 +----- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5ff6809e94..fd6d2011af 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -74,8 +74,15 @@ config ARM_ASM_UNIFIED config THUMB2_KERNEL bool +config SYS_ARM_CACHE_CP15 + bool "CP15 based cache enabling support" + help + Select this if your processor suports enabling caches by using + CP15 registers. + config SYS_ARM_MMU bool "MMU-based Paged Memory Management Support" + select SYS_ARM_CACHE_CP15 help Select if you want MMU-based virtualised addressing space support by paged memory management. diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index 77a3be4266..655727f431 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -61,11 +61,7 @@ obj-y += reset.o endif obj-y += cache.o -ifndef CONFIG_ARM64 -ifndef CONFIG_CPU_V7M -obj-y += cache-cp15.o -endif -endif +obj-$(CONFIG_SYS_ARM_CACHE_CP15) += cache-cp15.o obj-y += psci-dt.o -- 2.39.5