MPU - Memory Protect Unit

Modules
	MMU Initialization

Files
file	mpu.c
	SAMV70/SAMV71/SAME70/SAMS70-XULTRA board mpu config.

Functions
uint32_t	mpu_cal_mpu_region_size (uint32_t dw_actual_size_in_bytes)
	Calculate region size for the RASR. More...
void	mpu_disable_region (void)
	Disable the current active region. More...
void	mpu_enable (uint32_t dw_mpu_enable)
	Enables the MPU module. More...
void	mpu_set_region (uint32_t dw_region_base_addr, uint32_t dw_region_attr)
	Setup a memory region. More...
void	mpu_set_region_num (uint32_t dw_region_num)
	Set active memory region. More...
void	mpu_update_regions (uint32_t dw_region_num, uint32_t dw_region_base_addr, uint32_t dw_region_attr)
	Update MPU regions. More...

uint32_t mpu_cal_mpu_region_size

(

uint32_t

dw_actual_size_in_bytes

)

Calculate region size for the RASR.

void mpu_disable_region

(

void

)

Disable the current active region.

Referenced by mpu_update_regions().

void mpu_enable

(

uint32_t

dw_mpu_enable

)

Enables the MPU module.

Parameters

dwMPUEnable

Enable/Disable the memory region.

void mpu_set_region	(	uint32_t	dw_region_base_addr,
		uint32_t	dw_region_attr
	)

Setup a memory region.

Parameters

dwRegionBaseAddr	Memory region base address.
dwRegionAttr	Memory region attributes.

Referenced by mpu_update_regions().

void mpu_set_region_num

(

uint32_t

dw_region_num

)

Set active memory region.

Parameters

dwRegionNum

The memory region to be active.

Referenced by mpu_update_regions().

void mpu_update_regions	(	uint32_t	dw_region_num,
		uint32_t	dw_region_base_addr,
		uint32_t	dw_region_attr
	)

Update MPU regions.

Returns

Unused (ANSI-C compatibility).

References cpu_irq_restore(), cpu_irq_save(), flags, mpu_disable_region(), mpu_set_region(), and mpu_set_region_num().