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Factor out mcu/cortex-m.h.

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NIIBE Yutaka
2017-11-17 11:34:28 +09:00
parent 378201a1c7
commit b72154f47b
4 changed files with 42 additions and 61 deletions
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36
mcu/sys-stm32f103.c
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@@ -1,7 +1,8 @@
/*
* sys.c - system routines for the initial page for STM32F103.
* sys-stm32f103.c - system routines for the initial page for STM32F103.
*
* Copyright (C) 2013, 2014, 2015, 2016 Flying Stone Technology
* Copyright (C) 2013, 2014, 2015, 2016, 2017
* Flying Stone Technology
* Author: NIIBE Yutaka <gniibe@fsij.org>
*
* Copying and distribution of this file, with or without modification,
@@ -17,6 +18,7 @@
#include <stdlib.h>
#include "board.h"
#include "mcu/cortex-m.h"
#include "mcu/clk_gpio_init-stm32.c"
@@ -299,38 +301,10 @@ flash_erase_all_and_exec (void (*entry)(void))
for (;;);
}
struct SCB
{
volatile uint32_t CPUID;
volatile uint32_t ICSR;
volatile uint32_t VTOR;
volatile uint32_t AIRCR;
volatile uint32_t SCR;
volatile uint32_t CCR;
volatile uint8_t SHP[12];
volatile uint32_t SHCSR;
volatile uint32_t CFSR;
volatile uint32_t HFSR;
volatile uint32_t DFSR;
volatile uint32_t MMFAR;
volatile uint32_t BFAR;
volatile uint32_t AFSR;
volatile uint32_t PFR[2];
volatile uint32_t DFR;
volatile uint32_t ADR;
volatile uint32_t MMFR[4];
volatile uint32_t ISAR[5];
};
#define SCS_BASE (0xE000E000)
#define SCB_BASE (SCS_BASE + 0x0D00)
static struct SCB *const SCB = (struct SCB *)SCB_BASE;
#define SYSRESETREQ 0x04
static void
nvic_system_reset (void)
{
SCB->AIRCR = (0x05FA0000 | (SCB->AIRCR & 0x70) | SYSRESETREQ);
SCB->AIRCR = (0x05FA0000 | (SCB->AIRCR & 0x70) | SCB_AIRCR_SYSRESETREQ);
asm volatile ("dsb");
for (;;);
}