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arm: cmsis: Introduce CMSIS layer

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Support using CMSIS defines and functions, we either pull the expect
defines/enum from the SoC HAL layers via <soc.h> for the SoC or we
provide a default set based on __NVIC_PRIO_BITS is defined.

We provide defaults in the case for:
	IRQn_Type enum
	*_REV define (set to 0)
	__MPU_PRESENT define (set to 0 - no MPU)
	__NVIC_PRIO_BITS define (set to CONFIG_NUM_IRQ_PRIO_BITS)
	__Vendor_SysTickConfig (set to 0 - standard SysTick)

Jira: ZEP-1568

Change-Id: Ibc203de79f4697b14849b69c0e8c5c43677b5c6e
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2017-01-13 10:46:53 -06:00
commit 457a5988c4
4 changed files with 83 additions and 0 deletions
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1
arch/arm/core/Kconfig
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@ -19,6 +19,7 @@ config CPU_CORTEX_M
default n
select CPU_CORTEX
select ARCH_HAS_CUSTOM_SWAP_TO_MAIN
select HAS_CMSIS
help
This option signifies the use of a CPU of the Cortex-M family.

1
arch/arm/core/cortex_m/Makefile
View file

@ -1,6 +1,7 @@
ccflags-y +=-I$(srctree)/include/drivers
ccflags-y +=-I$(srctree)/arch/arm/soc/$(SOC_PATH)
ccflags-y +=-I$(srctree)/kernel/include
ccflags-y +=-I$(srctree)/include/
asflags-y = $(ccflags-y)