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soc: arm: add ARM MPU node info and fixup for Cortex-M7 SoCs

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Unlike Cortex-M3 and Cortex-M4, in Cortex-M7 the number of
MPU regions may vary based on the implementation. This commit
adds a DTS node for the ARM MPU peripheral in the device tree
of Cortex-M7 SoCs and updates the fixup files, so we may extract
the number of MPU regions at build time. SoCs:
- nxp_rt
- same70
- stm32f7

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit is contained in:
Ioannis Glaropoulos 2019-05-14 09:00:10 +02:00 • committed by Kumar Gala
commit 75f681b0d9
6 changed files with 30 additions and 0 deletions
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soc/arm/st_stm32/stm32f7/dts_fixup.h
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@ -4,6 +4,8 @@
#define DT_NUM_IRQ_PRIO_BITS DT_ARM_V7M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
#define DT_NUM_MPU_REGIONS DT_ARM_ARMV7M_MPU_E000ED90_ARM_NUM_MPU_REGIONS
#define DT_GPIO_STM32_GPIOA_BASE_ADDRESS DT_ST_STM32_GPIO_40020000_BASE_ADDRESS
#define DT_GPIO_STM32_GPIOA_CLOCK_BITS_0 DT_ST_STM32_GPIO_40020000_CLOCK_BITS_0
#define DT_GPIO_STM32_GPIOA_CLOCK_BUS_0 DT_ST_STM32_GPIO_40020000_CLOCK_BUS_0