/****************************************************************************** | |
FILE : startcf.h | |
PURPOSE : startup code for ColdFire | |
LANGUAGE: C | |
Notes: | |
1) Default entry point is _startup. | |
. disable interrupts | |
. the SP is set to __SP_AFTER_RESET | |
. SP must be initialized to valid memory | |
in case the memory it points to is not valid using MEMORY_INIT macro | |
2) __initialize_hardware is called. Here you can initialize memory and some peripherics | |
at this point global variables are not initialized yet | |
3) After __initialize_hardware memory is setup; initialize SP to _SP_INIT and perform | |
needed initialisations for the language (clear memory, data rom copy). | |
4) void __initialize_system(void); is called | |
to allow additional hardware initialization (UART, GPIOs, etc...) | |
5) Jump to main | |
*/ | |
/********************************************************************************/ | |
#ifndef STARTCF_H | |
#define STARTCF_H | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
#include "support_common.h" | |
extern unsigned long far __SP_INIT[]; | |
extern unsigned long far __SP_AFTER_RESET[]; | |
#ifndef MEMORY_INIT | |
/* If MEMORY_INIT is set then it performs | |
minimal memory initialization (to preset SP to __SP_AFTER_RESET, etc...) | |
*/ | |
#define MEMORY_INIT | |
#endif | |
void _startup(void); | |
#ifndef SUPPORT_ROM_TO_RAM | |
/* | |
* If SUPPORT_ROM_TO_RAM is set, _S_romp is used to define the copy to be performed. | |
* If it is not set, there's a single block to copy, performed directly without | |
* using the __S_romp structure, based on __DATA_RAM, __DATA_ROM and | |
* __DATA_END symbols. | |
* | |
* Set to 0 for more aggressive dead stripping ... | |
*/ | |
#define SUPPORT_ROM_TO_RAM 1 | |
#endif | |
/* format of the ROM table info entry ... */ | |
typedef struct RomInfo { | |
void *Source; | |
void *Target; | |
unsigned long Size; | |
} RomInfo; | |
/* imported data */ | |
extern far RomInfo _S_romp[]; /* linker defined symbol */ | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif |