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
|
/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <bsp.h>
#include <bsp/bootcard.h>
#include <bsp/linker-symbols.h>
#include <bsp/start.h>
#include <stm32h7/hal.h>
#include <stm32h7/memory.h>
#include <stm32h7/mpu-config.h>
#include <rtems/score/armv7m.h>
#include <string.h>
void HAL_MspInit(void)
{
__HAL_RCC_SYSCFG_CLK_ENABLE();
}
static void init_power(void)
{
HAL_PWREx_ConfigSupply(STM32H7_PWR_SUPPLY);
__HAL_PWR_VOLTAGESCALING_CONFIG(stm32h7_config_pwr_regulator_voltagescaling);
while (!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {
/* Wait */
}
}
static void init_oscillator(void)
{
HAL_StatusTypeDef status;
status = HAL_RCC_OscConfig(&stm32h7_config_oscillator);
if (status != HAL_OK) {
bsp_reset();
}
}
static void init_clocks(void)
{
HAL_StatusTypeDef status;
status = HAL_RCC_ClockConfig(
&stm32h7_config_clocks,
stm32h7_config_flash_latency
);
if (status != HAL_OK) {
bsp_reset();
}
}
static void init_peripheral_clocks(void)
{
HAL_StatusTypeDef status;
status = HAL_RCCEx_PeriphCLKConfig(&stm32h7_config_peripheral_clocks);
if (status != HAL_OK) {
bsp_reset();
}
}
void bsp_start_hook_0(void)
{
if ((RCC->AHB3ENR & RCC_AHB3ENR_FMCEN) == 0) {
/*
* Only perform the low-level initialization if necessary. An initialized
* FMC indicates that a boot loader already performed the low-level
* initialization.
*/
SystemInit();
init_power();
init_oscillator();
init_clocks();
init_peripheral_clocks();
HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
HAL_Init();
SystemInit_ExtMemCtl();
}
if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
SCB_EnableICache();
}
if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
SCB_EnableDCache();
}
_ARMV7M_MPU_Setup(stm32h7_config_mpu_region, stm32h7_config_mpu_region_count);
}
void bsp_start_hook_1(void)
{
bsp_start_copy_sections_compact();
SCB_CleanDCache();
SCB_InvalidateICache();
bsp_start_clear_bss();
}
|
