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| author | Josh Rahm <joshuarahm@gmail.com> | 2020-11-25 11:27:45 -0700 |
|---|---|---|
| committer | Josh Rahm <joshuarahm@gmail.com> | 2020-11-25 11:32:16 -0700 |
| commit | d7d50cc81f72d1275140d7a15c52b6f9e272896f (patch) | |
| tree | 875b7ed438412c3fc09ff49b58391787813e3998 /include/arch/arm/arch.h | |
| parent | c29e0323020e0f96932d0f9b09747d5b2e28e5a6 (diff) | |
| download | stm32l4-d7d50cc81f72d1275140d7a15c52b6f9e272896f.tar.gz stm32l4-d7d50cc81f72d1275140d7a15c52b6f9e272896f.tar.bz2 stm32l4-d7d50cc81f72d1275140d7a15c52b6f9e272896f.zip | |
Add module for controlling the MPU.
The MPU is a module in arm chips which allow for memory access
protection. They are more primitive than full MMUs, but can still
provide at least basic access control between different process
controls.
Diffstat (limited to 'include/arch/arm/arch.h')
| -rw-r--r-- | include/arch/arm/arch.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/arch/arm/arch.h b/include/arch/arm/arch.h index bf96fae..e4ebb8d 100644 --- a/include/arch/arm/arch.h +++ b/include/arch/arm/arch.h @@ -13,6 +13,12 @@ #define disable_all_interrupts() \ asm volatile(" cpsid i ") +#define __isb() \ + asm volatile(" isb ") + +#define __dsb() \ + asm volatile(" dsb ") + #define DMA1_BASE (0x40020000) #define DMA2_BASE (0x40020400) @@ -36,6 +42,7 @@ #define SPI3_BASE (0x40003C00) #define STACK_TOP (0x2000c000) +#define MPU_BASE (0xE000ED90) #include <stdint.h> #ifndef DRY_RUN |