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git01.mediatek.com / filogic / atf / b3087ac726a649d07416e39e8d57caa354c76a6e / . / plat / mediatek / drivers / emi_mpu / mt8188 / emi_mpu.c
blob: e8882f0702bca481e4fb80e73d54c83766a1cbd1 [file] [log] [blame]
developer880fb172022-09-05 19:08:59 +0800[diff] [blame]1/*
Chungying Lu59c1c2b2023-04-25 15:39:10 +0800[diff] [blame]2 * Copyright (c) 2022-2023, ARM Limited and Contributors. All rights reserved.
developer880fb172022-09-05 19:08:59 +0800[diff] [blame]3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <common/debug.h>
8#include <emi_mpu.h>
Dawei Chien67611c82023-08-01 18:52:52 +0800[diff] [blame]9#include <mtk_sip_svc.h>
10
11#define MPU_PHYSICAL_ADDR_SHIFT_BITS (16)
developer880fb172022-09-05 19:08:59 +0800[diff] [blame]12
13void set_emi_mpu_regions(void)
14{
Jason Chend0c66762023-06-06 16:28:19 +0800[diff] [blame]15 struct emi_region_info_t region_info;
16
17 /* SCP core0 DRAM */
18 region_info.start = 0x50000000ULL;
19 region_info.end = 0x528FFFFFULL;
20 region_info.region = 2;
21 SET_ACCESS_PERMISSION(region_info.apc, 1,
22 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
23 FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION,
24 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
25 FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION);
26 emi_mpu_set_protection(&region_info);
27
28 /* SCP core1 DRAM */
29 region_info.start = 0x70000000ULL;
30 region_info.end = 0x729FFFFFULL;
31 region_info.region = 3;
32 SET_ACCESS_PERMISSION(region_info.apc, 1,
33 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
34 FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION,
35 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
36 FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION);
37 emi_mpu_set_protection(&region_info);
38
39 /* DSP protect address */
40 region_info.start = 0x60000000ULL;
41 region_info.end = 0x610FFFFFULL;
42 region_info.region = 4;
43 SET_ACCESS_PERMISSION(region_info.apc, 1,
44 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
45 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
46 FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION,
47 FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION);
48 emi_mpu_set_protection(&region_info);
49
50 /* All default settings */
51 region_info.start = 0x40000000ULL;
52 region_info.end = 0x1FFFF0000ULL;
53 region_info.region = 31;
54 SET_ACCESS_PERMISSION(region_info.apc, 1,
55 FORBIDDEN, FORBIDDEN, NO_PROTECTION, NO_PROTECTION,
56 NO_PROTECTION, FORBIDDEN, NO_PROTECTION, NO_PROTECTION,
57 NO_PROTECTION, SEC_R_NSEC_RW, NO_PROTECTION, FORBIDDEN,
58 NO_PROTECTION, NO_PROTECTION, NO_PROTECTION, NO_PROTECTION);
59 emi_mpu_set_protection(&region_info);
developer880fb172022-09-05 19:08:59 +0800[diff] [blame]60}
Chungying Lu59c1c2b2023-04-25 15:39:10 +0800[diff] [blame]61
62int set_apu_emi_mpu_region(void)
63{
64 struct emi_region_info_t region_info;
65
66 region_info.start = (unsigned long long)APUSYS_SEC_BUF_PA;
67 region_info.end = (unsigned long long)(APUSYS_SEC_BUF_PA + APUSYS_SEC_BUF_SZ) - 1;
68 region_info.region = APUSYS_SEC_BUF_EMI_REGION;
69
70 SET_ACCESS_PERMISSION(region_info.apc, UNLOCK,
71 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
72 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
73 NO_PROTECTION, FORBIDDEN, NO_PROTECTION, FORBIDDEN,
74 FORBIDDEN, FORBIDDEN, FORBIDDEN, SEC_RW);
75
76 return emi_mpu_set_protection(&region_info);
77}
Dawei Chien67611c82023-08-01 18:52:52 +0800[diff] [blame]78
79static inline uint64_t get_decoded_phys_addr(uint64_t addr)
80{
81 return (addr << MPU_PHYSICAL_ADDR_SHIFT_BITS);
82}
83
84static inline uint32_t get_decoded_zone_id(uint32_t info)
85{
86 return ((info & 0xFFFF0000) >> MPU_PHYSICAL_ADDR_SHIFT_BITS);
87}
88
89int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
90 uint64_t zone_info)
91{
92 uint64_t phys_addr = get_decoded_phys_addr(encoded_addr);
93 struct emi_region_info_t region_info;
94 enum MPU_REQ_ORIGIN_ZONE_ID zone_id = get_decoded_zone_id(zone_info);
95
96 INFO("encoded_addr = 0x%lx, zone_size = 0x%lx, zone_info = 0x%lx\n",
97 encoded_addr, zone_size, zone_info);
98
99 if (zone_id != MPU_REQ_ORIGIN_TEE_ZONE_SVP) {
100 ERROR("Invalid param %s, %d\n", __func__, __LINE__);
101 return MTK_SIP_E_INVALID_PARAM;
102 }
103
104 /* SVP DRAM */
105 region_info.start = phys_addr;
106 region_info.end = phys_addr + zone_size;
107 region_info.region = 4;
108 SET_ACCESS_PERMISSION(region_info.apc, 1,
109 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
110 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
111 FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
112 FORBIDDEN, FORBIDDEN, FORBIDDEN, SEC_RW);
113
114 emi_mpu_set_protection(&region_info);
115
116 return 0;
117}