pinebuds/platform/cmsis/system_ARMCM.c

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2022-08-15 04:20:27 -05:00
/***************************************************************************
*
* Copyright 2015-2019 BES.
* All rights reserved. All unpublished rights reserved.
*
* No part of this work may be used or reproduced in any form or by any
* means, or stored in a database or retrieval system, without prior written
* permission of BES.
*
* Use of this work is governed by a license granted by BES.
* This work contains confidential and proprietary information of
* BES. which is protected by copyright, trade secret,
* trademark and other intellectual property rights.
*
****************************************************************************/
#ifndef __ARM_ARCH_ISA_ARM
#include "cmsis.h"
#include "hal_location.h"
#include "system_ARMCM.h"
void BOOT_TEXT_FLASH_LOC SystemInit (void)
{
#if (__FPU_USED == 1)
SCB->CPACR |= ((3UL << 10*2) | /* set CP10 Full Access */
(3UL << 11*2) ); /* set CP11 Full Access */
#endif
SCB->CCR |= SCB_CCR_DIV_0_TRP_Msk;
#ifdef __ARM_ARCH_8M_MAIN__
// Disable stack limit check on hard fault, NMI and reset
// (The check will generate STKOF usage fault)
SCB->CCR |= SCB_CCR_STKOFHFNMIGN_Msk;
#endif
#ifdef UNALIGNED_ACCESS
SCB->CCR &= ~SCB_CCR_UNALIGN_TRP_Msk;
#else
SCB->CCR |= SCB_CCR_UNALIGN_TRP_Msk;
#endif
#ifdef USAGE_FAULT
SCB->SHCSR |= SCB_SHCSR_USGFAULTENA_Msk;
NVIC_SetPriority(UsageFault_IRQn, IRQ_PRIORITY_REALTIME);
#else
SCB->SHCSR &= ~SCB_SHCSR_USGFAULTENA_Msk;
#endif
#ifdef BUS_FAULT
SCB->SHCSR |= SCB_SHCSR_BUSFAULTENA_Msk;
NVIC_SetPriority(BusFault_IRQn, IRQ_PRIORITY_REALTIME);
#else
SCB->SHCSR &= ~SCB_SHCSR_BUSFAULTENA_Msk;
#endif
#ifdef MEM_FAULT
SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
NVIC_SetPriority(MemoryManagement_IRQn, IRQ_PRIORITY_REALTIME);
#else
SCB->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk;
#endif
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
TZ_SAU_Setup();
#endif
}
#ifndef UNALIGNED_ACCESS
bool get_unaligned_access_status(void)
{
return !(SCB->CCR & SCB_CCR_UNALIGN_TRP_Msk);
}
bool config_unaligned_access(bool enable)
{
bool en;
en = !(SCB->CCR & SCB_CCR_UNALIGN_TRP_Msk);
if (enable) {
SCB->CCR &= ~SCB_CCR_UNALIGN_TRP_Msk;
} else {
SCB->CCR |= SCB_CCR_UNALIGN_TRP_Msk;
}
return en;
}
#endif
// -----------------------------------------------------------
// CPU ID
// -----------------------------------------------------------
uint32_t BOOT_TEXT_SRAM_DEF(get_cpu_id) (void)
{
#ifdef CHIP_HAS_CP
#ifdef __ARM_ARCH_8M_MAIN__
return (SCB->ID_ADR & 3);
#else /*__ARM_ARCH_8M_MAIN__*/
return (SCB->ADR & 3);
#endif /*__ARM_ARCH_8M_MAIN__*/
#else
return 0;
#endif
}
#endif