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boards: Holybro H7 boards clear MPU early in board init

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- needed if the bootloader configures the memory protection unit (MPU)
This commit is contained in:
Daniel Agar
2021-08-31 18:01:06 -04:00
parent 7476a2953e
commit ba0b512f0d
1 changed files with 12 additions and 0 deletions
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12
boards/holybro/durandal-v1/src/init.c
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@@ -75,6 +75,8 @@
#include <px4_platform/board_determine_hw_info.h> #include <px4_platform/board_determine_hw_info.h>
#include <px4_platform/board_dma_alloc.h> #include <px4_platform/board_dma_alloc.h>
#include <mpu.h>
/**************************************************************************** /****************************************************************************
* Pre-Processor Definitions * Pre-Processor Definitions
****************************************************************************/ ****************************************************************************/
@@ -160,6 +162,16 @@ __EXPORT void board_on_reset(int status)
__EXPORT void __EXPORT void
stm32_boardinitialize(void) stm32_boardinitialize(void)
{ {
// clear all existing MPU configuration from bootloader
for (int region = 0; region < CONFIG_ARM_MPU_NREGIONS; region++) {
putreg32(region, MPU_RNR);
putreg32(0, MPU_RBAR);
putreg32(0, MPU_RASR);
// save
putreg32(0, MPU_CTRL);
}
board_on_reset(-1); /* Reset PWM first thing */ board_on_reset(-1); /* Reset PWM first thing */
/* configure LEDs */ /* configure LEDs */