summaryrefslogtreecommitdiff
path: root/FreeRTOS/Demo/CORTEX_MPU_M33F_NXP_LPC55S69_MCUXpresso/NXP_Code/trustzone/tzm_config.c
blob: ee665709aa5c3eb8962a02a3679106ba98c3d7c8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
/***********************************************************************************************************************
 * This file was generated by the MCUXpresso Config Tools. Any manual edits made to this file
 * will be overwritten if the respective MCUXpresso Config Tools is used to update this file.
 **********************************************************************************************************************/

/* clang-format off */
/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
!!GlobalInfo
product: TEE v3.0
processor: LPC55S69
package_id: LPC55S69JBD100
mcu_data: ksdk2_0
processor_version: 0.10.1
 * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
/* clang-format on */

/***********************************************************************************************************************
 * Included files
 **********************************************************************************************************************/
#include "fsl_common.h"
#include "tzm_config.h"

/***********************************************************************************************************************
 * Definitions
 **********************************************************************************************************************/
/* SAU region boundaries */
#define SAU_REGION_0_BASE 0
#define SAU_REGION_0_END 0x0FFFFFFFU
#define SAU_REGION_1_BASE 0x20000000U
#define SAU_REGION_1_END 0xDFFFFFFFU
#define SAU_REGION_2_BASE 0x1000FE00U
#define SAU_REGION_2_END 0x1000FFFFU



/* clang-format off */
/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
functional_group:
- called_from_default_init: 'true'
- id_prefix: ''
- prefix_user_defined: 'true'
- name: 'BOARD_InitTEE'
- description: ''
- ahb:
  - regions: [{memory: PROGRAM_FLASH, security: s_priv, start: '0x00000000', size: '0x00010000'}, {memory: PROGRAM_FLASH, security: ns_user, start: '0x00010000',
      size: '0x00090000'}, {memory: BootROM, security: ns_user, start: '0x00000000', size: '0x00020000'}, {memory: SRAMX, security: ns_user, start: '0x00000000',
      size: '0x00008000'}, {memory: SRAM0, security: s_priv, start: '0x00000000', size: '0x00008000'}, {memory: SRAM0, security: ns_user, start: '0x00008000', size: '0x00008000'},
    {memory: SRAM1, security: ns_user, start: '0x00000000', size: '0x00010000'}, {memory: SRAM2, security: ns_user, start: '0x00000000', size: '0x00010000'}, {memory: SRAM3,
      security: ns_user, start: '0x00000000', size: '0x00010000'}, {memory: SRAM4, security: ns_user, start: '0x00000000', size: '0x00004000'}, {memory: USB_RAM,
      security: ns_user, start: '0x00000000', size: '0x00004000'}]
  - masters: {ns_user: {id: [HASH, MCM33C, MCM33S, PQ, SDIO, SDMA0, SDMA1, USBFSD, USBFSH]}}
  - peripherals: {ns_user: {id: [ADC0, AHB_SECURE_CTRL, ANACTRL, CASPER, CRC_ENGINE, CTIMER0, CTIMER1, CTIMER2, CTIMER3, CTIMER4, DBGMAILBOX, DMA0, DMA1, FLASH,
        FLEXCOMM1, FLEXCOMM2, FLEXCOMM3, FLEXCOMM4, FLEXCOMM5, FLEXCOMM6, FLEXCOMM7, GINT0, GINT1, GPIO, HASHCRYPT, INPUTMUX, MAILBOX, MRT0, OSTIMER, PINT, PLU, PMC,
        POWERQUAD, PRINCE, PUF, RNG, RTC, SCT0, SDIF, SECGPIO, SECPINT, SPI8, SYSCTL, USB0, USBFSH, USBHSD, USBHSH, USBPHY, UTICK0, WWDT]}, s_priv: {id: [FLEXCOMM0,
        IOCON, SYSCON]}}
  - interrupts:
    - masking: {Non-masked: {id: [acmp_capt_irq, adc_irq, casper_irq, ctimer0_irq, ctimer1_irq, ctimer2_irq, ctimer3_irq, ctimer4_irq, flexcomm0_irq, flexcomm1_irq,
          flexcomm2_irq, flexcomm3_irq, flexcomm4_irq, flexcomm5_irq, flexcomm6_irq, flexcomm7_irq, global_irq0, global_irq1, lspi_hs_irq, mailbox_irq, mrt_irq, os_event_irq,
          pin_int4, pin_int5, pin_int6, pin_int7, pin_irq0, pin_irq1, pin_irq2, pin_irq3, plu_irq, pq_irq, qddkey_irq, rtc_irq, sct_irq, sdio_irq, sdma0_irq, sdma1_irq,
          sec_hypervisor_call_irq, sec_int0, sec_int1, sec_vio_irq, sha_irq, sys_irq, usb0_irq, usb0_needclk_irq, usb1_irq, usb1_needclk_irq, usb1_utmi_irq, utick_irq]}}
    - security: {Secure: {id: [acmp_capt_irq, adc_irq, casper_irq, ctimer0_irq, ctimer1_irq, ctimer2_irq, ctimer3_irq, ctimer4_irq, flexcomm0_irq, flexcomm1_irq,
          flexcomm2_irq, flexcomm3_irq, flexcomm4_irq, flexcomm5_irq, flexcomm6_irq, flexcomm7_irq, global_irq0, global_irq1, lspi_hs_irq, mailbox_irq, mrt_irq, os_event_irq,
          pin_int4, pin_int5, pin_int6, pin_int7, pin_irq0, pin_irq1, pin_irq2, pin_irq3, plu_irq, pq_irq, qddkey_irq, rtc_irq, sct_irq, sdio_irq, sdma0_irq, sdma1_irq,
          sec_hypervisor_call_irq, sec_int0, sec_int1, sec_vio_irq, sha_irq, sys_irq, usb0_irq, usb0_needclk_irq, usb1_irq, usb1_needclk_irq, usb1_utmi_irq, utick_irq]}}
  - pins_masks:
    - pio0: {Non-masked: {id: ['0', '1', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '2', '20', '21', '22', '23', '24', '25', '26', '27', '28',
          '3', '31', '4', '5', '6', '7', '8', '9']}, Masked: {id: ['29', '30']}}
    - pio1: {Non-masked: {id: ['0', '1', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '2', '20', '21', '22', '23', '24', '25', '26', '27', '28',
          '29', '3', '30', '31', '4', '5', '6', '7', '8', '9']}}
- sau:
  - enabled: 'true'
  - all_non_secure: 'false'
  - generate_code_for_disabled_regions: 'false'
  - regions: [{index: '0', enabled: 'true', security: ns, start: '0x00000000', size: '0x10000000'}, {index: '1', enabled: 'true', security: ns, start: '0x20000000',
      size: '0xC0000000'}, {index: '2', enabled: 'true', security: nsc, start: '0x1000FE00', size: '0x00000200'}, {index: '3', enabled: 'false', security: ns, start: '0x00000000',
      size: '0x00000020'}, {index: '4', enabled: 'false', security: ns, start: '0x00000000', size: '0x00000020'}, {index: '5', enabled: 'false', security: ns, start: '0x00000000',
      size: '0x00000020'}, {index: '6', enabled: 'false', security: ns, start: '0x00000000', size: '0x00000020'}, {index: '7', enabled: 'false', security: ns, start: '0x00000000',
      size: '0x00000020'}]
- global_options:
  - no:
    - id: [AIRCR_PRIS, AIRCR_BFHFNMINS, AIRCR_SYSRESETREQS, SCR_SLEEPDEEPS, SHCSR_SECUREFAULTENA, NSACR_CP2, NSACR_CP3, NSACR_CP4, NSACR_CP5, NSACR_CP6, NSACR_CP7,
      CPPWR_SU0, CPPWR_SUS0, CPPWR_SU1, CPPWR_SUS1, CPPWR_SU2, CPPWR_SUS2, CPPWR_SU3, CPPWR_SUS3, CPPWR_SU4, CPPWR_SUS4, CPPWR_SU5, CPPWR_SUS5, CPPWR_SU6, CPPWR_SUS6,
      CPPWR_SU7, CPPWR_SUS7, CPPWR_SU10, CPPWR_SUS10, CPPWR_SU11, CPPWR_SUS11, SEC_GPIO_MASK0_LOCK, SEC_GPIO_MASK1_LOCK, SEC_CPU1_INT_MASK0_LOCK, SEC_CPU1_INT_MASK1_LOCK,
      MASTER_SEC_LEVEL_LOCK, CPU0_LOCK_NS_VTOR, CPU0_LOCK_NS_MPU, CPU0_LOCK_S_VTAIRCR, CPU0_LOCK_S_MPU, CPU0_LOCK_SAU, CPU0_LOCK_REG_LOCK, CPU1_LOCK_NS_VTOR, CPU1_LOCK_NS_MPU,
      CPU1_LOCK_REG_LOCK, AHB_MISC_CTRL_REG_ENABLE_S_PRIV_CHECK, AHB_MISC_CTRL_REG_ENABLE_NS_PRIV_CHECK, AHB_MISC_CTRL_REG_DISABLE_VIOLATION_ABORT, AHB_MISC_CTRL_REG_DISABLE_SIMPLE_MASTER_STRICT_MODE,
      AHB_MISC_CTRL_REG_DISABLE_SMART_MASTER_STRICT_MODE, AHB_MISC_CTRL_REG_IDAU_ALL_NS]
  - yes:
    - id: [NSACR_CP0, NSACR_CP1, NSACR_CP10, NSACR_CP11, AHB_MISC_CTRL_REG_ENABLE_SECURE_CHECKING, AHB_MISC_CTRL_REG_WRITE_LOCK, _legacy_source_names_]
  - c_code:
    - id: [_output_type_]
- user_memory_regions: [{id: Region_1, security: s_priv, name: Secure Code, start: '0x10000000', size: '0x0000FE00'}, {id: Region_2, security: nsc_priv, name: Veneer
      Table, start: '0x1000FE00', size: '0x00000200'}, {id: Region_3, security: s_priv, name: Secure Stack and Data, start: '0x30000000', size: '0x00008000'}, {id: Region_4,
    security: ns_user, name: Non-secure Code, description: Privilege check is disabled so reset value (NS-User) can be used, start: '0x00010000', size: '0x00068000'},
  {id: Region_5, security: ns_user, name: Non-secure Stack and Data, description: 'Privilege check is disabled so reset value (NS-User) can be used. ', start: '0x20008000',
    size: '0x0002B000'}]
- mpus:
  - mpu:
    - enabled: 'false'
    - id: 's'
    - priv_default_map: 'false'
    - handler_enabled: 'false'
    - generate_code_for_disabled_regions: 'false'
    - attributes: [{index: '0', id: '0', memory_type: device, device: nGnRE}, {index: '1', id: '1', memory_type: device, device: nGnRE}, {index: '2', id: '2', memory_type: device,
        device: nGnRE}, {index: '3', id: '3', memory_type: device, device: nGnRE}, {index: '4', id: '4', memory_type: device, device: nGnRE}, {index: '5', id: '5',
        memory_type: device, device: nGnRE}, {index: '6', id: '6', memory_type: device, device: nGnRE}, {index: '7', id: '7', memory_type: device, device: nGnRE}]
    - regions: [{executable: 'false', read_only: 'false', attributes_index: '0', index: '0', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'},
      {executable: 'false', read_only: 'false', attributes_index: '0', index: '1', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false',
        read_only: 'false', attributes_index: '0', index: '2', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false',
        attributes_index: '0', index: '3', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0',
        index: '4', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0', index: '5',
        enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0', index: '6', enabled: 'false',
        security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0', index: '7', enabled: 'false', security: priv,
        start: '0x00000000', size: '0x00000020'}]
  - mpu:
    - enabled: 'false'
    - id: 'ns'
    - priv_default_map: 'false'
    - handler_enabled: 'false'
    - generate_code_for_disabled_regions: 'false'
    - attributes: [{index: '0', id: '0', memory_type: device, device: nGnRE}, {index: '1', id: '1', memory_type: device, device: nGnRE}, {index: '2', id: '2', memory_type: device,
        device: nGnRE}, {index: '3', id: '3', memory_type: device, device: nGnRE}, {index: '4', id: '4', memory_type: device, device: nGnRE}, {index: '5', id: '5',
        memory_type: device, device: nGnRE}, {index: '6', id: '6', memory_type: device, device: nGnRE}, {index: '7', id: '7', memory_type: device, device: nGnRE}]
    - regions: [{executable: 'false', read_only: 'false', attributes_index: '0', index: '0', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'},
      {executable: 'false', read_only: 'false', attributes_index: '0', index: '1', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false',
        read_only: 'false', attributes_index: '0', index: '2', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false',
        attributes_index: '0', index: '3', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0',
        index: '4', enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0', index: '5',
        enabled: 'false', security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0', index: '6', enabled: 'false',
        security: priv, start: '0x00000000', size: '0x00000020'}, {executable: 'false', read_only: 'false', attributes_index: '0', index: '7', enabled: 'false', security: priv,
        start: '0x00000000', size: '0x00000020'}]
 * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
/* clang-format on */

/***********************************************************************************************************************
 * BOARD_InitTrustZone function
 **********************************************************************************************************************/
void BOARD_InitTrustZone()
{
    /* SAU configuration */
    
    /* Set SAU Control register: Disable SAU and All Secure */
    SAU->CTRL = 0;
    
    /* Set SAU region number */
    SAU->RNR = 0;
    /* Region base address */
    SAU->RBAR = SAU_REGION_0_BASE & SAU_RBAR_BADDR_Msk;
    /* Region end address */
    SAU->RLAR = (SAU_REGION_0_END & SAU_RLAR_LADDR_Msk)
        | ((0U << SAU_RLAR_NSC_Pos) & SAU_RLAR_NSC_Msk)
        | ((1U << SAU_RLAR_ENABLE_Pos) & SAU_RLAR_ENABLE_Msk);
    
    /* Set SAU region number */
    SAU->RNR = 1;
    /* Region base address */
    SAU->RBAR = SAU_REGION_1_BASE & SAU_RBAR_BADDR_Msk;
    /* Region end address */
    SAU->RLAR = (SAU_REGION_1_END & SAU_RLAR_LADDR_Msk)
        | ((0U << SAU_RLAR_NSC_Pos) & SAU_RLAR_NSC_Msk)
        | ((1U << SAU_RLAR_ENABLE_Pos) & SAU_RLAR_ENABLE_Msk);
    
    /* Set SAU region number */
    SAU->RNR = 2;
    /* Region base address */
    SAU->RBAR = SAU_REGION_2_BASE & SAU_RBAR_BADDR_Msk;
    /* Region end address */
    SAU->RLAR = (SAU_REGION_2_END & SAU_RLAR_LADDR_Msk)
        | ((1U << SAU_RLAR_NSC_Pos) & SAU_RLAR_NSC_Msk)
        | ((1U << SAU_RLAR_ENABLE_Pos) & SAU_RLAR_ENABLE_Msk);
    
    /* Force memory writes before continuing */
    __DSB();
    /* Flush and refill pipeline with updated permissions */
    __ISB();
    
    /* Set SAU Control register: Enable SAU and All Secure (applied only if disabled) */
    SAU->CTRL = ((0U << SAU_CTRL_ALLNS_Pos) & SAU_CTRL_ALLNS_Msk)
        | ((1U << SAU_CTRL_ENABLE_Pos) & SAU_CTRL_ENABLE_Msk);
    
    /* AHB configuration */

    /*--------------------------------------------------------------------
     - AHB Security Level Configurations
     -------------------------------------------------------------------*/
    /* Configuration of AHB Secure Controller
       Possible values for every memory sector or peripheral rule:
        0    Non-secure, User access allowed.
        1    Non-secure, Privileged access allowed.
        2    Secure, User access allowed.
        3    Secure, Privileged access allowed.
    */

    /* Security level configuration of MPC checker */
    AHB_SECURE_CTRL->SEC_CTRL_FLASH_ROM[0].SEC_CTRL_FLASH_MEM_RULE[0] = 0x00000033U;
    AHB_SECURE_CTRL->SEC_CTRL_FLASH_ROM[0].SEC_CTRL_FLASH_MEM_RULE[1] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_FLASH_ROM[0].SEC_CTRL_FLASH_MEM_RULE[2] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_FLASH_ROM[0].SEC_CTRL_ROM_MEM_RULE[0] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_FLASH_ROM[0].SEC_CTRL_ROM_MEM_RULE[1] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_FLASH_ROM[0].SEC_CTRL_ROM_MEM_RULE[2] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_FLASH_ROM[0].SEC_CTRL_ROM_MEM_RULE[3] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAMX[0].MEM_RULE[0] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM0[0].MEM_RULE[0] = 0x33333333U;
    AHB_SECURE_CTRL->SEC_CTRL_RAM0[0].MEM_RULE[1] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM1[0].MEM_RULE[0] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM1[0].MEM_RULE[1] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM2[0].MEM_RULE[0] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM2[0].MEM_RULE[1] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM3[0].MEM_RULE[0] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM3[0].MEM_RULE[1] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_RAM4[0].MEM_RULE[0] = 0;
    AHB_SECURE_CTRL->SEC_CTRL_USB_HS[0].MEM_RULE[0] = 0;

    /* Security level configuration of PPC checker */
    AHB_SECURE_CTRL->SEC_CTRL_APB_BRIDGE[0].SEC_CTRL_APB_BRIDGE0_MEM_CTRL0 = 0xFCCCCCFFU;
    AHB_SECURE_CTRL->SEC_CTRL_APB_BRIDGE[0].SEC_CTRL_APB_BRIDGE0_MEM_CTRL1 = 0xFCCCFFCCU;
    AHB_SECURE_CTRL->SEC_CTRL_APB_BRIDGE[0].SEC_CTRL_APB_BRIDGE0_MEM_CTRL2 = 0xFFFFCFFFU;
    AHB_SECURE_CTRL->SEC_CTRL_APB_BRIDGE[0].SEC_CTRL_APB_BRIDGE1_MEM_CTRL0 = 0xFFFFCFFCU;
    AHB_SECURE_CTRL->SEC_CTRL_APB_BRIDGE[0].SEC_CTRL_APB_BRIDGE1_MEM_CTRL1 = 0xFFCCFCCCU;
    AHB_SECURE_CTRL->SEC_CTRL_APB_BRIDGE[0].SEC_CTRL_APB_BRIDGE1_MEM_CTRL2 = 0xFFCCFFFFU;
    AHB_SECURE_CTRL->SEC_CTRL_APB_BRIDGE[0].SEC_CTRL_APB_BRIDGE1_MEM_CTRL3 = 0xFFCFCCFCU;
    AHB_SECURE_CTRL->SEC_CTRL_AHB_PORT8_SLAVE0_RULE = 0xCFCCFCFFU;
    AHB_SECURE_CTRL->SEC_CTRL_AHB_PORT8_SLAVE1_RULE = 0xFFFCCCCCU;
    AHB_SECURE_CTRL->SEC_CTRL_AHB_PORT9_SLAVE0_RULE = 0xCCCCFFFFU;
    AHB_SECURE_CTRL->SEC_CTRL_AHB_PORT9_SLAVE1_RULE = 0xCFFCCFFCU;
    AHB_SECURE_CTRL->SEC_CTRL_AHB_PORT10[0].SLAVE0_RULE = 0xCCCCCCFCU;
    AHB_SECURE_CTRL->SEC_CTRL_AHB_PORT10[0].SLAVE1_RULE = 0xFFFFFFCCU;

    /* Security level configuration of masters */
    AHB_SECURE_CTRL->MASTER_SEC_LEVEL = 0x80000000U;
    AHB_SECURE_CTRL->MASTER_SEC_ANTI_POL_REG = 0xBFFFFFFFU;

    /*--------------------------------------------------------------------
     - Pins: Reading GPIO state
     -------------------------------------------------------------------*/
    /* Possible values for every pin:
     *  0b0    Deny
     *  0b1    Allow */
    AHB_SECURE_CTRL->SEC_GPIO_MASK0 = 0x9FFFFFFFU;
    AHB_SECURE_CTRL->SEC_GPIO_MASK1 = 0xFFFFFFFFU;

    /*--------------------------------------------------------------------
     - Interrupts: Interrupt handling by Core1
     -------------------------------------------------------------------*/
    /* Possible values for every interrupt:
     *  0b0    Deny
     *  0b1    Allow */
    AHB_SECURE_CTRL->SEC_CPU_INT_MASK0 = 0xFFFFFFFFU;
    AHB_SECURE_CTRL->SEC_CPU_INT_MASK1 = 0xFFFFFFFFU;

    /*--------------------------------------------------------------------
     - Interrupts: Interrupt security configuration
     -------------------------------------------------------------------*/
    /* Possible values for every interrupt:
     *  0b0    Secure
     *  0b1    Non-secure */
    NVIC->ITNS[0] = 0;
    NVIC->ITNS[1] = 0;

    /* Global Options */
    SCB->AIRCR = (SCB->AIRCR & 0x000009FF7U) | 0x005FA0000U;
    SCB->SCR &= 0x0FFFFFFF7U;
    SCB->SHCSR &= 0x0FFF7FFFFU;
    SCB->NSACR = 0x00000C03U;
    SCnSCB->CPPWR = 0;
    AHB_SECURE_CTRL->SEC_MASK_LOCK = 0x00000AAAU;
    AHB_SECURE_CTRL->MASTER_SEC_LEVEL = (AHB_SECURE_CTRL->MASTER_SEC_LEVEL & 0x03FFFFFFFU) | 0x080000000U;
    AHB_SECURE_CTRL->MASTER_SEC_ANTI_POL_REG = (AHB_SECURE_CTRL->MASTER_SEC_ANTI_POL_REG & 0x03FFFFFFFU) | 0x080000000U;
    AHB_SECURE_CTRL->CPU0_LOCK_REG = 0x800002AAU;
    AHB_SECURE_CTRL->CPU1_LOCK_REG = 0x8000000AU;
    AHB_SECURE_CTRL->MISC_CTRL_REG = (AHB_SECURE_CTRL->MISC_CTRL_REG & 0x0FFFF0003U) | 0x00000AAA4U;
    AHB_SECURE_CTRL->MISC_CTRL_DP_REG = 0x0000AAA5U;
}