533 lines
19 KiB

/*
Copyright (c) 2009-2018 ARM Limited. All rights reserved.
SPDX-License-Identifier: Apache-2.0
Licensed under the Apache License, Version 2.0 (the License); you may
not use this file except in compliance with the License.
You may obtain a copy of the License at
www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an AS IS BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
NOTICE: This file has been modified by Nordic Semiconductor ASA.
*/
.syntax unified
.arch armv8-m.main
#ifdef __STARTUP_CONFIG
#include "startup_config.h"
#ifndef __STARTUP_CONFIG_STACK_ALIGNEMENT
#define __STARTUP_CONFIG_STACK_ALIGNEMENT 3
#endif
#endif
.section .stack
#if defined(__STARTUP_CONFIG)
.align __STARTUP_CONFIG_STACK_ALIGNEMENT
.equ Stack_Size, __STARTUP_CONFIG_STACK_SIZE
#elif defined(__STACK_SIZE)
.align 3
.equ Stack_Size, __STACK_SIZE
#else
.align 3
.equ Stack_Size, 8192
#endif
.globl __StackTop
.globl __StackLimit
__StackLimit:
.space Stack_Size
.size __StackLimit, . - __StackLimit
__StackTop:
.size __StackTop, . - __StackTop
.section .heap
.align 3
#if defined(__STARTUP_CONFIG)
.equ Heap_Size, __STARTUP_CONFIG_HEAP_SIZE
#elif defined(__HEAP_SIZE)
.equ Heap_Size, __HEAP_SIZE
#else
.equ Heap_Size, 8192
#endif
.globl __HeapBase
.globl __HeapLimit
__HeapBase:
.if Heap_Size
.space Heap_Size
.endif
.size __HeapBase, . - __HeapBase
__HeapLimit:
.size __HeapLimit, . - __HeapLimit
.section .isr_vector
.align 2
.globl __isr_vector
__isr_vector:
.long __StackTop /* Top of Stack */
.long Reset_Handler
.long NMI_Handler
.long HardFault_Handler
.long MemoryManagement_Handler
.long BusFault_Handler
.long UsageFault_Handler
.long SecureFault_Handler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long SVC_Handler
.long DebugMon_Handler
.long 0 /*Reserved */
.long PendSV_Handler
.long SysTick_Handler
/* External Interrupts */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long SPU_IRQHandler
.long 0 /*Reserved */
.long CLOCK_POWER_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long UARTE0_SPIM0_SPIS0_TWIM0_TWIS0_IRQHandler
.long UARTE1_SPIM1_SPIS1_TWIM1_TWIS1_IRQHandler
.long UARTE2_SPIM2_SPIS2_TWIM2_TWIS2_IRQHandler
.long UARTE3_SPIM3_SPIS3_TWIM3_TWIS3_IRQHandler
.long 0 /*Reserved */
.long GPIOTE0_IRQHandler
.long SAADC_IRQHandler
.long TIMER0_IRQHandler
.long TIMER1_IRQHandler
.long TIMER2_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long RTC0_IRQHandler
.long RTC1_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long WDT_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long EGU0_IRQHandler
.long EGU1_IRQHandler
.long EGU2_IRQHandler
.long EGU3_IRQHandler
.long EGU4_IRQHandler
.long EGU5_IRQHandler
.long PWM0_IRQHandler
.long PWM1_IRQHandler
.long PWM2_IRQHandler
.long PWM3_IRQHandler
.long 0 /*Reserved */
.long PDM_IRQHandler
.long 0 /*Reserved */
.long I2S_IRQHandler
.long 0 /*Reserved */
.long IPC_IRQHandler
.long 0 /*Reserved */
.long FPU_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long GPIOTE1_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long KMU_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long CRYPTOCELL_IRQHandler
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.long 0 /*Reserved */
.size __isr_vector, . - __isr_vector
/* Reset Handler */
.text
.thumb
.thumb_func
.align 1
.globl Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
/* Loop to copy data from read only memory to RAM.
* The ranges of copy from/to are specified by following symbols:
* __etext: LMA of start of the section to copy from. Usually end of text
* __data_start__: VMA of start of the section to copy to.
* __bss_start__: VMA of end of the section to copy to. Normally __data_end__ is used, but by using __bss_start__
* the user can add their own initialized data section before BSS section with the INTERT AFTER command.
*
* All addresses must be aligned to 4 bytes boundary.
*/
ldr r1, =__etext
ldr r2, =__data_start__
ldr r3, =__bss_start__
subs r3, r3, r2
ble .L_loop1_done
.L_loop1:
subs r3, r3, #4
ldr r0, [r1,r3]
str r0, [r2,r3]
bgt .L_loop1
.L_loop1_done:
/* This part of work usually is done in C library startup code. Otherwise,
* define __STARTUP_CLEAR_BSS to enable it in this startup. This section
* clears the RAM where BSS data is located.
*
* The BSS section is specified by following symbols
* __bss_start__: start of the BSS section.
* __bss_end__: end of the BSS section.
*
* All addresses must be aligned to 4 bytes boundary.
*/
#ifdef __STARTUP_CLEAR_BSS
ldr r1, =__bss_start__
ldr r2, =__bss_end__
movs r0, 0
subs r2, r2, r1
ble .L_loop3_done
.L_loop3:
subs r2, r2, #4
str r0, [r1, r2]
bgt .L_loop3
.L_loop3_done:
#endif /* __STARTUP_CLEAR_BSS */
/* Execute SystemInit function. */
bl SystemInit
/* Call _start function provided by libraries.
* If those libraries are not accessible, define __START as your entry point.
*/
#ifndef __START
#define __START _start
#endif
bl __START
.pool
.size Reset_Handler,.-Reset_Handler
.section ".text"
/* Dummy Exception Handlers (infinite loops which can be modified) */
.weak NMI_Handler
.type NMI_Handler, %function
NMI_Handler:
b .
.size NMI_Handler, . - NMI_Handler
.weak HardFault_Handler
.type HardFault_Handler, %function
HardFault_Handler:
b .
.size HardFault_Handler, . - HardFault_Handler
.weak MemoryManagement_Handler
.type MemoryManagement_Handler, %function
MemoryManagement_Handler:
b .
.size MemoryManagement_Handler, . - MemoryManagement_Handler
.weak BusFault_Handler
.type BusFault_Handler, %function
BusFault_Handler:
b .
.size BusFault_Handler, . - BusFault_Handler
.weak UsageFault_Handler
.type UsageFault_Handler, %function
UsageFault_Handler:
b .
.size UsageFault_Handler, . - UsageFault_Handler
.weak SecureFault_Handler
.type SecureFault_Handler, %function
SecureFault_Handler:
b .
.size SecureFault_Handler, . - SecureFault_Handler
.weak SVC_Handler
.type SVC_Handler, %function
SVC_Handler:
b .
.size SVC_Handler, . - SVC_Handler
.weak DebugMon_Handler
.type DebugMon_Handler, %function
DebugMon_Handler:
b .
.size DebugMon_Handler, . - DebugMon_Handler
.weak PendSV_Handler
.type PendSV_Handler, %function
PendSV_Handler:
b .
.size PendSV_Handler, . - PendSV_Handler
.weak SysTick_Handler
.type SysTick_Handler, %function
SysTick_Handler:
b .
.size SysTick_Handler, . - SysTick_Handler
/* IRQ Handlers */
.globl Default_Handler
.type Default_Handler, %function
Default_Handler:
b .
.size Default_Handler, . - Default_Handler
.macro IRQ handler
.weak \handler
.set \handler, Default_Handler
.endm
IRQ SPU_IRQHandler
IRQ CLOCK_POWER_IRQHandler
IRQ UARTE0_SPIM0_SPIS0_TWIM0_TWIS0_IRQHandler
IRQ UARTE1_SPIM1_SPIS1_TWIM1_TWIS1_IRQHandler
IRQ UARTE2_SPIM2_SPIS2_TWIM2_TWIS2_IRQHandler
IRQ UARTE3_SPIM3_SPIS3_TWIM3_TWIS3_IRQHandler
IRQ GPIOTE0_IRQHandler
IRQ SAADC_IRQHandler
IRQ TIMER0_IRQHandler
IRQ TIMER1_IRQHandler
IRQ TIMER2_IRQHandler
IRQ RTC0_IRQHandler
IRQ RTC1_IRQHandler
IRQ WDT_IRQHandler
IRQ EGU0_IRQHandler
IRQ EGU1_IRQHandler
IRQ EGU2_IRQHandler
IRQ EGU3_IRQHandler
IRQ EGU4_IRQHandler
IRQ EGU5_IRQHandler
IRQ PWM0_IRQHandler
IRQ PWM1_IRQHandler
IRQ PWM2_IRQHandler
IRQ PWM3_IRQHandler
IRQ PDM_IRQHandler
IRQ I2S_IRQHandler
IRQ IPC_IRQHandler
IRQ FPU_IRQHandler
IRQ GPIOTE1_IRQHandler
IRQ KMU_IRQHandler
IRQ CRYPTOCELL_IRQHandler
.end