1 /* 2 * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef EMI_MPU_H 8 #define EMI_MPU_H 9 10 #include <platform_def.h> 11 12 #define EMI_MPUP (EMI_BASE + 0x01D8) 13 #define EMI_MPUQ (EMI_BASE + 0x01E0) 14 #define EMI_MPUR (EMI_BASE + 0x01E8) 15 #define EMI_MPUS (EMI_BASE + 0x01F0) 16 #define EMI_MPUT (EMI_BASE + 0x01F8) 17 #define EMI_MPUY (EMI_BASE + 0x0220) 18 #define EMI_MPU_CTRL (EMI_MPU_BASE + 0x0000) 19 #define EMI_MPUD0_ST (EMI_BASE + 0x0160) 20 #define EMI_MPUD1_ST (EMI_BASE + 0x0164) 21 #define EMI_MPUD2_ST (EMI_BASE + 0x0168) 22 #define EMI_MPUD3_ST (EMI_BASE + 0x016C) 23 #define EMI_MPUD0_ST2 (EMI_BASE + 0x0200) 24 #define EMI_MPUD1_ST2 (EMI_BASE + 0x0204) 25 #define EMI_MPUD2_ST2 (EMI_BASE + 0x0208) 26 #define EMI_MPUD3_ST2 (EMI_BASE + 0x020C) 27 28 #define EMI_PHY_OFFSET (0x40000000UL) 29 30 #define NO_PROT (0) 31 #define SEC_RW (1) 32 #define SEC_RW_NSEC_R (2) 33 #define SEC_RW_NSEC_W (3) 34 #define SEC_R_NSEC_R (4) 35 #define FORBIDDEN (5) 36 #define SEC_R_NSEC_RW (6) 37 38 #define SECURE_OS_MPU_REGION_ID (0) 39 #define ATF_MPU_REGION_ID (1) 40 41 #define EMI_MPU_SA0 (EMI_MPU_BASE + 0x100) 42 #define EMI_MPU_EA0 (EMI_MPU_BASE + 0x200) 43 #define EMI_MPU_SA(region) (EMI_MPU_SA0 + (region) * 4) 44 #define EMI_MPU_EA(region) (EMI_MPU_EA0 + (region) * 4) 45 46 #define EMI_MPU_APC0 (EMI_MPU_BASE + 0x300) 47 #define EMI_MPU_APC(region, dgroup) (EMI_MPU_APC0 + (region) * 4 + \ 48 (dgroup) * 0x100) 49 50 #define EMI_MPU_CTRL_D0 (EMI_MPU_BASE + 0x800) 51 #define EMI_MPU_CTRL_D(domain) (EMI_MPU_CTRL_D0 + domain * 4) 52 #define EMI_RG_MASK_D0 (EMI_MPU_BASE + 0x900) 53 #define EMI_RG_MASK_D(domain) (EMI_RG_MASK_D0 + domain * 4) 54 55 #define EMI_MPU_DOMAIN_NUM 16 56 #define EMI_MPU_REGION_NUM 32 57 #define EMI_MPU_ALIGN_BITS 16 58 #define DRAM_OFFSET (0x40000000 >> EMI_MPU_ALIGN_BITS) 59 60 #define EMI_MPU_DGROUP_NUM (EMI_MPU_DOMAIN_NUM / 8) 61 62 #if (EMI_MPU_DGROUP_NUM == 1) 63 #define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \ 64 do { \ 65 apc_ary[0] = 0; \ 66 apc_ary[0] = \ 67 (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) \ 68 | (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) \ 69 | (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) \ 70 | (((unsigned int) d1) << 3) | ((unsigned int) d0) \ 71 | (((unsigned int) lock) << 31); \ 72 } while (0) 73 #elif (EMI_MPU_DGROUP_NUM == 2) 74 #define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \ 75 d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \ 76 do { \ 77 apc_ary[1] = \ 78 (((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) \ 79 | (((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) \ 80 | (((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) \ 81 | (((unsigned int) d9) << 3) | ((unsigned int) d8); \ 82 apc_ary[0] = \ 83 (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) \ 84 | (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) \ 85 | (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) \ 86 | (((unsigned int) d1) << 3) | ((unsigned int) d0) \ 87 | (((unsigned int) lock) << 31); \ 88 } while (0) 89 #endif 90 91 struct emi_region_info_t { 92 unsigned long long start; 93 unsigned long long end; 94 unsigned int region; 95 unsigned long apc[EMI_MPU_DGROUP_NUM]; 96 }; 97 98 void emi_mpu_init(void); 99 int emi_mpu_set_protection(struct emi_region_info_t *region_info); 100 void dump_emi_mpu_regions(void); 101 102 #endif /* __EMI_MPU_H */ 103