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| author | Damien George <damien.p.george@gmail.com> | 2019-07-03 00:47:32 +1000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2019-07-03 01:27:33 +1000 |
| commit | f7eb2c72f76be6033a32247c145128153e3449ac (patch) | |
| tree | d791eea2fe1d34633c194515d756c6ad4a59f65d /ports/stm32/mpu.h | |
| parent | 8dcf25e1bd9bfd1c6d8723b6a2d9c27615b109c2 (diff) | |
| download | micropython-f7eb2c72f76be6033a32247c145128153e3449ac.tar.gz micropython-f7eb2c72f76be6033a32247c145128153e3449ac.zip | |
stm32/eth: Use MPU helper functions to configure MPU for ETH use.
Diffstat (limited to 'ports/stm32/mpu.h')
| -rw-r--r-- | ports/stm32/mpu.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/ports/stm32/mpu.h b/ports/stm32/mpu.h index d90a768e7a..c0cd2108c1 100644 --- a/ports/stm32/mpu.h +++ b/ports/stm32/mpu.h @@ -28,6 +28,8 @@ #if defined(STM32F7) || defined(STM32H7) +#define MPU_REGION_ETH (MPU_REGION_NUMBER0) + #define MPU_CONFIG_DISABLE(srd, size) ( \ MPU_INSTRUCTION_ACCESS_DISABLE << MPU_RASR_XN_Pos \ | MPU_REGION_NO_ACCESS << MPU_RASR_AP_Pos \ @@ -40,6 +42,18 @@ | MPU_REGION_ENABLE << MPU_RASR_ENABLE_Pos \ ) +#define MPU_CONFIG_ETH(size) ( \ + MPU_INSTRUCTION_ACCESS_DISABLE << MPU_RASR_XN_Pos \ + | MPU_REGION_FULL_ACCESS << MPU_RASR_AP_Pos \ + | MPU_TEX_LEVEL1 << MPU_RASR_TEX_Pos \ + | MPU_ACCESS_SHAREABLE << MPU_RASR_S_Pos \ + | MPU_ACCESS_NOT_CACHEABLE << MPU_RASR_C_Pos \ + | MPU_ACCESS_NOT_BUFFERABLE << MPU_RASR_B_Pos \ + | 0x00 << MPU_RASR_SRD_Pos \ + | (size) << MPU_RASR_SIZE_Pos \ + | MPU_REGION_ENABLE << MPU_RASR_ENABLE_Pos \ + ) + static inline void mpu_init(void) { MPU->CTRL = MPU_PRIVILEGED_DEFAULT | MPU_CTRL_ENABLE_Msk; SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk; |