diff options
Diffstat (limited to 'plat/mediatek/drivers/emi_mpu/emi_mpu.h')
-rw-r--r-- | plat/mediatek/drivers/emi_mpu/emi_mpu.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/plat/mediatek/drivers/emi_mpu/emi_mpu.h b/plat/mediatek/drivers/emi_mpu/emi_mpu.h new file mode 100644 index 0000000..66a369e --- /dev/null +++ b/plat/mediatek/drivers/emi_mpu/emi_mpu.h @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2022, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef EMI_MPU_H +#define EMI_MPU_H + +#include <emi_mpu_priv.h> +#include <platform_def.h> + +#define NO_PROTECTION (0) +#define SEC_RW (1) +#define SEC_RW_NSEC_R (2) +#define SEC_RW_NSEC_W (3) +#define SEC_R_NSEC_R (4) +#define FORBIDDEN (5) +#define SEC_R_NSEC_RW (6) + +#define LOCK (1) +#define UNLOCK (0) + +#if (EMI_MPU_DGROUP_NUM == 1) +#define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \ +do { \ + apc_ary[1] = 0; \ + apc_ary[0] = \ + (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ + (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ + (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ + (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ + ((unsigned int) lock << 31); \ +} while (0) +#elif (EMI_MPU_DGROUP_NUM == 2) +#define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \ + d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \ +do { \ + apc_ary[1] = \ + (((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) | \ + (((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) | \ + (((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) | \ + (((unsigned int) d9) << 3) | ((unsigned int) d8); \ + apc_ary[0] = \ + (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ + (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ + (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ + (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ + ((unsigned int) lock << 31); \ +} while (0) +#endif + +struct emi_region_info_t { + unsigned long long start; + unsigned long long end; + unsigned int region; + unsigned int apc[EMI_MPU_DGROUP_NUM]; +}; + +int emi_mpu_init(void); +int emi_mpu_set_protection(struct emi_region_info_t *region_info); +void set_emi_mpu_regions(void); + +#endif |