/* * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #ifndef EMI_MPU_H #define EMI_MPU_H #include #define EMI_MPUP (EMI_BASE + 0x01D8) #define EMI_MPUQ (EMI_BASE + 0x01E0) #define EMI_MPUR (EMI_BASE + 0x01E8) #define EMI_MPUS (EMI_BASE + 0x01F0) #define EMI_MPUT (EMI_BASE + 0x01F8) #define EMI_MPUY (EMI_BASE + 0x0220) #define EMI_MPU_CTRL (EMI_MPU_BASE + 0x0000) #define EMI_MPUD0_ST (EMI_BASE + 0x0160) #define EMI_MPUD1_ST (EMI_BASE + 0x0164) #define EMI_MPUD2_ST (EMI_BASE + 0x0168) #define EMI_MPUD3_ST (EMI_BASE + 0x016C) #define EMI_MPUD0_ST2 (EMI_BASE + 0x0200) #define EMI_MPUD1_ST2 (EMI_BASE + 0x0204) #define EMI_MPUD2_ST2 (EMI_BASE + 0x0208) #define EMI_MPUD3_ST2 (EMI_BASE + 0x020C) #define EMI_PHY_OFFSET (0x40000000UL) #define NO_PROT (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 SECURE_OS_MPU_REGION_ID (0) #define ATF_MPU_REGION_ID (1) #define EMI_MPU_SA0 (EMI_MPU_BASE + 0x100) #define EMI_MPU_EA0 (EMI_MPU_BASE + 0x200) #define EMI_MPU_SA(region) (EMI_MPU_SA0 + (region) * 4) #define EMI_MPU_EA(region) (EMI_MPU_EA0 + (region) * 4) #define EMI_MPU_APC0 (EMI_MPU_BASE + 0x300) #define EMI_MPU_APC(region, dgroup) (EMI_MPU_APC0 + (region) * 4 + \ (dgroup) * 0x100) #define EMI_MPU_CTRL_D0 (EMI_MPU_BASE + 0x800) #define EMI_MPU_CTRL_D(domain) (EMI_MPU_CTRL_D0 + domain * 4) #define EMI_RG_MASK_D0 (EMI_MPU_BASE + 0x900) #define EMI_RG_MASK_D(domain) (EMI_RG_MASK_D0 + domain * 4) #define EMI_MPU_DOMAIN_NUM 16 #define EMI_MPU_REGION_NUM 32 #define EMI_MPU_ALIGN_BITS 16 #define DRAM_OFFSET (0x40000000 >> EMI_MPU_ALIGN_BITS) #define EMI_MPU_DGROUP_NUM (EMI_MPU_DOMAIN_NUM / 8) #if (EMI_MPU_DGROUP_NUM == 1) #define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \ do { \ apc_ary[0] = 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 long apc[EMI_MPU_DGROUP_NUM]; }; void emi_mpu_init(void); int emi_mpu_set_protection(struct emi_region_info_t *region_info); void dump_emi_mpu_regions(void); #endif /* __EMI_MPU_H */