diff options
| author | iabdalkader <i.abdalkader@gmail.com> | 2024-11-21 07:56:02 +0100 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2025-04-09 00:22:32 +1000 |
| commit | 5152a1f04da3699bc35419bc40bf204760eac66c (patch) | |
| tree | 5fba8395846c7e27a3f6b9c574185d30be079e12 | |
| parent | 3d17f634785f4e151d883b1d1110db3a66673efd (diff) | |
alif/mpmetalport: Add Open-AMP MPU region.
Define an MPU region for Open-AMP and remove hard-coded attribute.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
| -rw-r--r-- | ports/alif/mpmetalport.c | 18 | ||||
| -rw-r--r-- | ports/alif/mpmetalport.h | 3 | ||||
| -rw-r--r-- | ports/alif/mpu.h | 1 |
3 files changed, 9 insertions, 13 deletions
diff --git a/ports/alif/mpmetalport.c b/ports/alif/mpmetalport.c index f80d039c2..a7d402546 100644 --- a/ports/alif/mpmetalport.c +++ b/ports/alif/mpmetalport.c @@ -48,28 +48,22 @@ int metal_sys_init(const struct metal_init_params *params) { hwsem_reset(METAL_HSEM_REMOTE); #endif - // Enable the hardware semaphore IRQ. - NVIC_ClearPendingIRQ(METAL_HSEM_IRQn); - NVIC_SetPriority(METAL_HSEM_IRQn, IRQ_PRI_HWSEM); - NVIC_EnableIRQ(METAL_HSEM_IRQn); - // If cache management is not enabled, configure the MPU to disable // caching for the entire Open-AMP shared memory region. #ifndef VIRTIO_USE_DCACHE ARM_MPU_Disable(); - // NOTE: The startup code uses the first 4 attributes. - #define MEMATTR_IDX_NORMAL_NON_CACHEABLE 4 - ARM_MPU_SetMemAttr(MEMATTR_IDX_NORMAL_NON_CACHEABLE, ARM_MPU_ATTR( - ARM_MPU_ATTR_NON_CACHEABLE, - ARM_MPU_ATTR_NON_CACHEABLE)); MPU->RNR = METAL_MPU_REGION_ID; - MPU->RBAR = ARM_MPU_RBAR(METAL_MPU_REGION_BASE, ARM_MPU_SH_NON, 0, 1, 0); // RO-0, NP-1, XN-0 - MPU->RLAR = ARM_MPU_RLAR(METAL_MPU_REGION_BASE + METAL_MPU_REGION_SIZE - 1, MEMATTR_IDX_NORMAL_NON_CACHEABLE); + MPU->RBAR = ARM_MPU_RBAR(METAL_MPU_REGION_BASE, ARM_MPU_SH_NON, 0, 1, 1); // RO-0, NP-1, XN-1 + MPU->RLAR = ARM_MPU_RLAR(METAL_MPU_REGION_BASE + METAL_MPU_REGION_SIZE - 1, MP_MPU_ATTR_NORMAL_NON_CACHEABLE); ARM_MPU_Enable(MPU_CTRL_PRIVDEFENA_Msk | MPU_CTRL_HFNMIENA_Msk); #endif metal_bus_register(&metal_generic_bus); + // Enable the hardware semaphore IRQ. + NVIC_ClearPendingIRQ(METAL_HSEM_IRQn); + NVIC_SetPriority(METAL_HSEM_IRQn, IRQ_PRI_HWSEM); + NVIC_EnableIRQ(METAL_HSEM_IRQn); return 0; } diff --git a/ports/alif/mpmetalport.h b/ports/alif/mpmetalport.h index 5cd697c0e..7a428dbc6 100644 --- a/ports/alif/mpmetalport.h +++ b/ports/alif/mpmetalport.h @@ -31,6 +31,7 @@ #include <stdlib.h> #include "py/mphal.h" #include "py/runtime.h" +#include "mpu.h" #define METAL_HAVE_STDATOMIC_H 0 #define METAL_HAVE_FUTEX_H 0 @@ -66,7 +67,7 @@ #define METAL_SHM_ADDR ((metal_phys_addr_t)(_openamp_shm_region_start + METAL_RSC_SIZE)) #define METAL_SHM_SIZE ((size_t)(_openamp_shm_region_end - _openamp_shm_region_start - METAL_RSC_SIZE)) -#define METAL_MPU_REGION_ID (9) // NOTE: The startup code uses the first 9 regions. +#define METAL_MPU_REGION_ID (MP_MPU_REGION_OPENAMP) #define METAL_MPU_REGION_BASE ((uint32_t)_openamp_shm_region_start) #define METAL_MPU_REGION_SIZE (0x00010000U) diff --git a/ports/alif/mpu.h b/ports/alif/mpu.h index c259c8585..88fbe0112 100644 --- a/ports/alif/mpu.h +++ b/ports/alif/mpu.h @@ -36,3 +36,4 @@ #define MP_MPU_REGION_MRAM (3) #define MP_MPU_REGION_OSPI_REGISTERS (4) #define MP_MPU_REGION_OSPI0_XIP (5) +#define MP_MPU_REGION_OPENAMP (6) |