/*==================================================================================================
* Project : RTD AUTOSAR 4.4
* Platform : CORTEXM
* Peripheral :
* Dependencies : none
*
* Autosar Version : 4.4.0
* Autosar Revision : ASR_REL_4_4_REV_0000
* Autosar Conf.Variant :
* SW Version : 1.0.0
* Build Version : S32K1_RTD_1_0_0_HF01_D2109_ASR_REL_4_4_REV_0000_20210907
*
* (c) Copyright 2020-2021 NXP Semiconductors
* All Rights Reserved.
*
* NXP Confidential. This software is owned or controlled by NXP and may only be
* used strictly in accordance with the applicable license terms. By expressly
* accepting such terms or by downloading, installing, activating and/or otherwise
* using the software, you are agreeing that you have read, and that you agree to
* comply with and are bound by, such license terms. If you do not agree to be
* bound by the applicable license terms, then you may not retain, install,
* activate or otherwise use the software.
==================================================================================================*/
#define WDOG_CS (0x40052000)
#define WDOG_TOVAL (0x40052008)
#define WDOG_CS_DISABLE (0x00002520)
.syntax unified
.arch armv7-m
/* Table for copying and zeroing */
/* Copy table:
- Table entries count
- entry one ram start
- entry one rom start
- entry one rom end
...
- entry n ram start
- entry n rom start
- entry n rom end
Zero Table:
- Table entries count
- entry one ram start
- entry one ram end
*/
.section ".init_table", "a"
.long 2
.long __RAM_INIT_START
.long __ROM_INIT_START
.long __ROM_INIT_END
.long __RAM_INTERRUPT_START
.long __ROM_INTERRUPT_START
.long __ROM_INTERRUPT_END
.section ".zero_table", "a"
.long 1
.long __BSS_SRAM_START
.long __BSS_SRAM_END
/* Flash Configuration */
.section .flash_config, "a"
.long 0xFFFFFFFF /* 8 bytes backdoor comparison key */
.long 0xFFFFFFFF /* */
.long 0xFFFFFFFF /* 4 bytes program flash protection bytes */
.long 0xFFFF7FFE /* FDPROT:FEPROT:FOPT:FSEC(0xFE = unsecured) */
.globl VTABLE
.section ".startup","ax"
.thumb
/************************************************************************/
/* Autosar synopsis of startup code (See MCU Specification): */
/* */
/* Before the MCU driver can be initialized, a basic initialization */
/* of the MCU has to be executed. This MCU specific initialization is */
/* typically executed in a start-up code. The start-up code of the */
/* MCU shall be executed after power up and any kind of micro- */
/* controller reset. It shall perform very basic and microcontroller */
/* specific start-up initialization and shall be kept short, because */
/* the MCU clock and PLL is not yet initialized. The start-up code */
/* shall cover MCU specific initialization, which is not part of */
/* other MCU services or other MCAL drivers. The following steps */
/* summarizes basic functionality which shall be included in the */
/* start-up code. They are listed for guidance, because some */
/* functionality might not be supported. No code will be found in */
/* case. */
/************************************************************************/
.set VTOR_REG, 0xE000ED08
.set CHIPCTL, 0x40048004
.set DISRAMRE, 0x00300000
.thumb
.thumb_func
.globl Reset_Handler
.globl _start
_start:
Reset_Handler:
/*****************************************************/
/* Skip normal entry point as nothing is initialized */
/*****************************************************/
cpsid i
mov r0, #0
mov r1, #0
mov r2, #0
mov r3, #0
mov r4, #0
mov r5, #0
mov r6, #0
mov r7, #0
/*****************************************************/
/* Configuring sram retention out of reset */
/*****************************************************/
/* Disable SRAM retention */
ldr r0, =CHIPCTL
ldr r1, =DISRAMRE
str r1,[r0]
/*******************************************************************/
/* NXP Guidance 1 - Init registers to avoid lock-step issues */
/* N/A */
/*******************************************************************/
/*******************************************************************/
/* NXP Guidance 2 - MMU Initialization for CPU */
/* TLB0 - PbridgeB */
/* TLB1 - Internal Flash */
/* TLB2 - External SRAM */
/* TLB3 - Internal SRAM */
/* TLB4 - PbridgeA */
/*******************************************************************/
/******************************************************************/
/* Autosar Guidance 1 - The start-up code shall initialize the */
/* base addresses for interrupt and trap vector tables. These base*/
/* addresses are provided as configuration parameters or */
/* linker/locator setting. */
/******************************************************************/
SetVTOR:
/* relocate vector table to RAM */
ldr r0, =VTOR_REG
ldr r1, =__RAM_INTERRUPT_START
str r1,[r0]
/******************************************************************/
/* Autosar Guidance 2 - The start-up code shall initialize the */
/* interrupt stack pointer, if an interrupt stack is */
/* supported by the MCU. The interrupt stack pointer base address */
/* and the stack size are provided as configuration parameter or */
/* linker/locator setting. */
/* */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 3 - The start-up code shall initialize the */
/* user stack pointer. The user stack pointer base address and */
/* the stack size are provided as configuration parameter or */
/* linker/locator setting. */
/******************************************************************/
SetCore0Stack:
/* set up stack; r13 SP*/
ldr r0, =__Stack_start_c0
msr MSP, r0
b DisableSWT0
/******************************************************************/
/* Autosar Guidance 4 - If the MCU supports context save */
/* operation, the start-up code shall initialize the memory which */
/* is used for context save operation. The maximum amount of */
/* consecutive context save operations is provided as */
/* configuration parameter or linker/locator setting. */
/* */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 5 - The start-up code shall ensure that the */
/* MCU internal watchdog shall not be serviced until the watchdog */
/* is initialized from the MCAL watchdog driver. This can be */
/* done for example by increasing the watchdog service time. */
/* */
/******************************************************************/
/* Note from manual: For any operation to be performed on an SWT */
/* instance, its respective core must be enabled. */
DisableSWT0:
ldr r0, =WDOG_CS
ldr r1, =WDOG_CS_DISABLE
str r1, [r0]
ldr r0, =WDOG_TOVAL
ldr r1, =0xFFFF
str r1, [r0]
b RamInit
/******************************************************************/
/* Autosar Guidance 13 - The start-up code shall initialize a */
/* minimum amount of RAM in order to allow proper execution of */
/* the MCU driver services and the caller of these services. */
/******************************************************************/
RamInit:
/* Initialize SRAM ECC */
ldr r0, =__RAM_INIT
cmp r0, 0
/* Skip if __SRAM_INIT is not set */
beq SRAM_LOOP_END
ldr r1, =__INT_SRAM_START
ldr r2, =__INT_SRAM_END
subs r2, r1
subs r2, #1
ble SRAM_LOOP_END
movs r0, 0
movs r3, 0
SRAM_LOOP:
stm r1!, {r0,r3}
subs r2, 8
bge SRAM_LOOP
SRAM_LOOP_END:
DebuggerHeldCoreLoop:
ldr r0, =RESET_CATCH_CORE
ldr r0, [r0]
ldr r1, =0x5A5A5A5A
cmp r0, r1
beq DebuggerHeldCoreLoop
/************************/
/* Erase ".bss Section" */
/************************/
_DATA_INIT:
b _INIT_DATA_BSS
_INIT_DATA_BSS:
bl init_data_bss
/******************************************************************/
/* Autosar Guidance 6 - If the MCU supports cache memory for data */
/* and/or code, it shall be initialized and enabled in the */
/* start-up code. */
/* */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 7 - The start-up code shall initialize MCU */
/* specific features of internal memory like memory protection. */
/* */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 8 - If external memory is used, the memory */
/* shall be initialized in the start-up code. The start-up code */
/* shall be prepared to support different memory configurations */
/* depending on code location. Different configuration options */
/* shall be taken into account for code execution from */
/* external/internal memory. */
/* N/A - external memory is not used */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 9 - The settings of the different memories */
/* shall be provided to the start-up code as configuration */
/* parameters. */
/* N/A - all memories are already configured */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 10 - In the start-up code a default */
/* initialization of the MCU clock system shall be performed */
/* including global clock prescalers. */
/******************************************************************/
__SYSTEM_INIT:
bl SystemInit
/******************************************************************/
/* Autosar Guidance 5 - The start-up code shall ensure that the */
/* MCU internal watchdog shall not be serviced until the watchdog */
/* is initialized from the MCAL watchdog driver. This can be */
/* done for example by increasing the watchdog service time. */
/* */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 11 - The start-up code shall enable */
/* protection mechanisms for special function registers(SFR's), */
/* if supported by the MCU. */
/* N/A - will be handled by Autosar OS */
/******************************************************************/
/******************************************************************/
/* Autosar Guidance 12 - The start-up code shall initialize all */
/* necessary write once registers or registers common to several */
/* drivers where one write, rather than repeated writes, to the */
/* register is required or highly desirable. */
/******************************************************************/
/*********************************/
/* Set the small ro data pointer */
/*********************************/
/*********************************/
/* Set the small rw data pointer */
/*********************************/
/******************************************************************/
/* Call Main Routine */
/******************************************************************/
_MAIN:
cpsie i
bl startup_go_to_user_mode
bl main
/******************************************************************/
/* Init runtime check data space */
/******************************************************************/
.globl MCAL_LTB_TRACE_OFF
MCAL_LTB_TRACE_OFF:
nop
#ifdef CCOV_ENABLE
/* code coverage is requested */
bl ccov_main
#endif
/*BKPT #1 - removed to avoid debug fault being escalated to hardfault when debugger is not attached or on VDK*/ /* last instruction for the debugger to dump results data */
.globl _end_of_eunit_test
_end_of_eunit_test:
b .
#ifdef MCAL_ENABLE_USER_MODE_SUPPORT
.globl startup_getControlRegisterValue
startup_getControlRegisterValue:
mrs r0, CONTROL
bx r14
.globl startup_getAipsRegisterValue
startup_getAipsRegisterValue:
mrs r0, IPSR
bx r14
#endif
.align 4
.ltorg