developer | bd48115 | 2020-11-02 10:45:34 +0800 | [diff] [blame] | 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 */ |