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Rename directories in the RISC-V port.

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This commit is contained in:
Richard Barry 2018-12-24 17:37:02 +00:00
parent 2181c0375e
commit ce36928ea8
4 changed files with 295 additions and 179 deletions
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60
FreeRTOS/Source/portable/GCC/RISC-V-RV32/port.c
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@ -206,27 +206,31 @@ const uint32_t ulMPIE_Bit = 0x80, ulMPP_Bits = 0x1800;
}
/*-----------------------------------------------------------*/
void vPortSetupTimerInterrupt( void )
{
uint32_t ulCurrentTimeHigh, ulCurrentTimeLow;
volatile uint32_t * const pulTimeHigh = ( volatile uint32_t * const ) ( configCLINT_BASE_ADDRESS + 0xBFFC );
volatile uint32_t * const pulTimeLow = ( volatile uint32_t * const ) ( configCLINT_BASE_ADDRESS + 0xBFF8 );
#if( configCLINT_BASE_ADDRESS != 0 )
do
void vPortSetupTimerInterrupt( void )
{
ulCurrentTimeHigh = *pulTimeHigh;
ulCurrentTimeLow = *pulTimeLow;
} while( ulCurrentTimeHigh != *pulTimeHigh );
uint32_t ulCurrentTimeHigh, ulCurrentTimeLow;
volatile uint32_t * const pulTimeHigh = ( volatile uint32_t * const ) ( configCLINT_BASE_ADDRESS + 0xBFFC );
volatile uint32_t * const pulTimeLow = ( volatile uint32_t * const ) ( configCLINT_BASE_ADDRESS + 0xBFF8 );
ullNextTime = ( uint64_t ) ulCurrentTimeHigh;
ullNextTime <<= 32ULL;
ullNextTime |= ( uint64_t ) ulCurrentTimeLow;
ullNextTime += ( uint64_t ) ulTimerIncrementsForOneTick;
*pullMachineTimerCompareRegister = ullNextTime;
do
{
ulCurrentTimeHigh = *pulTimeHigh;
ulCurrentTimeLow = *pulTimeLow;
} while( ulCurrentTimeHigh != *pulTimeHigh );
/* Prepare the time to use after the next tick interrupt. */
ullNextTime += ( uint64_t ) ulTimerIncrementsForOneTick;
}
ullNextTime = ( uint64_t ) ulCurrentTimeHigh;
ullNextTime <<= 32ULL;
ullNextTime |= ( uint64_t ) ulCurrentTimeLow;
ullNextTime += ( uint64_t ) ulTimerIncrementsForOneTick;
*pullMachineTimerCompareRegister = ullNextTime;
/* Prepare the time to use after the next tick interrupt. */
ullNextTime += ( uint64_t ) ulTimerIncrementsForOneTick;
}
#endif /* ( configCLINT_BASE_ADDRESS != 0 ) */
/*-----------------------------------------------------------*/
BaseType_t xPortStartScheduler( void )
@ -247,14 +251,26 @@ extern void xPortStartFirstTask( void );
started. */
configASSERT( ( xISRStackTop & portBYTE_ALIGNMENT_MASK ) == 0 );
}
#endif
#endif /* configASSERT_DEFINED */
/* If there is a CLINT then it is ok to use the default implementation
in this file, otherwise vPortSetupTimerInterrupt() must be implemented to
configure whichever clock is to be used to generate the tick interrupt. */
vPortSetupTimerInterrupt();
/* Enable mtime and external interrupts. 1<<7 for timer interrupt, 1<<11
for external interrupt. _RB_ What happens here when mtime is not present as
with pulpino? */
__asm volatile( "csrs mie, %0" :: "r"(0x880) );
#if( configCLINT_BASE_ADDRESS != 0 )
{
/* Enable mtime and external interrupts. 1<<7 for timer interrupt, 1<<11
for external interrupt. _RB_ What happens here when mtime is not present as
with pulpino? */
__asm volatile( "csrs mie, %0" :: "r"(0x880) );
}
#else
{
/* Enable external interrupts. */
__asm volatile( "csrs mie, %0" :: "r"(0x800) );
}
#endif /* configCLINT_BASE_ADDRESS */
xPortStartFirstTask();