mirror of
https://gitea.osmocom.org/sim-card/simtrace2.git
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432ba5140e
The original board startup script is provided by Atmel. It has been modified to handle application or DFU booting. The copyright notice has been updated to reflect this change.
205 lines
6.8 KiB
C
205 lines
6.8 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2010, Atmel Corporation
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* Copyright (C) 2017, Harald Welte <laforge@gnumonks.org>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include "board.h"
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#include "board_lowlevel.h"
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/*----------------------------------------------------------------------------
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* Exported variables
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*----------------------------------------------------------------------------*/
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/* Stack Configuration */
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#define STACK_SIZE 0x900 /** Stack size (in DWords) */
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__attribute__ ((aligned(8),section(".stack")))
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uint32_t pdwStack[STACK_SIZE] ;
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/* Initialize segments */
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extern uint32_t _sfixed;
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extern uint32_t _efixed;
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extern uint32_t _etext;
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extern uint32_t _srelocate;
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extern uint32_t _erelocate;
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extern uint32_t _szero;
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extern uint32_t _ezero;
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/*----------------------------------------------------------------------------
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* ProtoTypes
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*----------------------------------------------------------------------------*/
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/** \cond DOXYGEN_SHOULD_SKIP_THIS */
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extern int main( void ) ;
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/** \endcond */
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void ResetException( void ) ;
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/*------------------------------------------------------------------------------
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* Exception Table
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*------------------------------------------------------------------------------*/
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__attribute__((section(".vectors")))
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IntFunc exception_table[] = {
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/* Configure Initial Stack Pointer, using linker-generated symbols */
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(IntFunc)(&pdwStack[STACK_SIZE-1]),
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ResetException,
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NMI_Handler,
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HardFault_Handler,
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MemManage_Handler,
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BusFault_Handler,
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UsageFault_Handler,
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0, 0, 0, 0, /* Reserved */
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SVC_Handler,
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DebugMon_Handler,
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0, /* Reserved */
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PendSV_Handler,
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SysTick_Handler,
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/* Configurable interrupts */
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SUPC_IrqHandler, /* 0 Supply Controller */
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RSTC_IrqHandler, /* 1 Reset Controller */
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RTC_IrqHandler, /* 2 Real Time Clock */
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RTT_IrqHandler, /* 3 Real Time Timer */
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WDT_IrqHandler, /* 4 Watchdog Timer */
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PMC_IrqHandler, /* 5 PMC */
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EEFC_IrqHandler, /* 6 EEFC */
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IrqHandlerNotUsed, /* 7 Reserved */
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UART0_IrqHandler, /* 8 UART0 */
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UART1_IrqHandler, /* 9 UART1 */
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SMC_IrqHandler, /* 10 SMC */
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PIOA_IrqHandler, /* 11 Parallel IO Controller A */
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PIOB_IrqHandler, /* 12 Parallel IO Controller B */
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PIOC_IrqHandler, /* 13 Parallel IO Controller C */
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USART0_IrqHandler, /* 14 USART 0 */
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USART1_IrqHandler, /* 15 USART 1 */
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IrqHandlerNotUsed, /* 16 Reserved */
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IrqHandlerNotUsed, /* 17 Reserved */
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MCI_IrqHandler, /* 18 MCI */
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TWI0_IrqHandler, /* 19 TWI 0 */
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TWI1_IrqHandler, /* 20 TWI 1 */
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SPI_IrqHandler, /* 21 SPI */
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SSC_IrqHandler, /* 22 SSC */
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TC0_IrqHandler, /* 23 Timer Counter 0 */
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TC1_IrqHandler, /* 24 Timer Counter 1 */
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TC2_IrqHandler, /* 25 Timer Counter 2 */
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TC3_IrqHandler, /* 26 Timer Counter 3 */
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TC4_IrqHandler, /* 27 Timer Counter 4 */
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TC5_IrqHandler, /* 28 Timer Counter 5 */
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ADC_IrqHandler, /* 29 ADC controller */
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DAC_IrqHandler, /* 30 DAC controller */
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PWM_IrqHandler, /* 31 PWM */
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CRCCU_IrqHandler, /* 32 CRC Calculation Unit */
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ACC_IrqHandler, /* 33 Analog Comparator */
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USBD_IrqHandler, /* 34 USB Device Port */
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IrqHandlerNotUsed /* 35 not used */
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};
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#if defined(BOARD_USB_DFU) && defined(APPLICATION_dfu)
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#include "usb/device/dfu/dfu.h"
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static void BootIntoApp(void)
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{
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unsigned int *pSrc;
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void (*appReset)(void);
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pSrc = (unsigned int *) ((unsigned char *)IFLASH_ADDR + BOARD_DFU_BOOT_SIZE);
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SCB->VTOR = ((unsigned int)(pSrc)) | (0x0 << 7);
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appReset = pSrc[1];
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g_dfu->state = DFU_STATE_appIDLE;
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appReset();
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}
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#endif
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/**
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* \brief This is the code that gets called on processor reset.
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* To initialize the device, and call the main() routine.
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*/
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void ResetException( void )
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{
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uint32_t *pSrc, *pDest ;
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/* Low level Initialize */
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LowLevelInit() ;
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#if defined(BOARD_USB_DFU) && defined(APPLICATION_dfu)
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/* we are before the text segment has been relocated, so g_dfu is
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* not initialized yet */
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g_dfu = &_g_dfu;
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if ((g_dfu->magic != USB_DFU_MAGIC) && !USBDFU_OverrideEnterDFU()) {
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BootIntoApp();
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/* Infinite loop */
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while ( 1 ) ;
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}
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#endif
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/* Initialize the relocate segment */
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pSrc = &_etext ;
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pDest = &_srelocate ;
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if ( pSrc != pDest )
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{
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for ( ; pDest < &_erelocate ; )
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{
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*pDest++ = *pSrc++ ;
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}
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}
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/* Clear the zero segment */
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for ( pDest = &_szero ; pDest < &_ezero ; )
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{
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*pDest++ = 0;
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}
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/* Set the vector table base address */
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pSrc = (uint32_t *)&_sfixed;
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SCB->VTOR = ( (uint32_t)pSrc & SCB_VTOR_TBLOFF_Msk ) ;
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if ( ((uint32_t)pSrc >= IRAM_ADDR) && ((uint32_t)pSrc < IRAM_ADDR+IRAM_SIZE) )
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{
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SCB->VTOR |= 1 << SCB_VTOR_TBLBASE_Pos ;
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}
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/* App should have disabled interrupts during the transition */
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__enable_irq();
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/* Branch to main function */
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main() ;
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/* Infinite loop */
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while ( 1 ) ;
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}
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