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Continue work on MicroBlaze port - still very much a work in progress.

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pull/4/head
Richard Barry 14 years ago
parent 1e5830a157
commit ea5ec656f4
4 changed files with 91 additions and 34 deletions
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1
Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoBSP/system.mss
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@ -15,6 +15,7 @@ BEGIN PROCESSOR
PARAMETER DRIVER_NAME = cpu
PARAMETER DRIVER_VER = 1.13.a
PARAMETER HW_INSTANCE = microblaze_0
PARAMETER EXTRA_COMPILER_FLAGS = -O0 -g
END

69
Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoSource/FreeRTOS_Source/portable/GCC/MicroBlaze/port.c
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@ -126,6 +126,7 @@ const unsigned long ulR2 = ( unsigned long ) &_SDA2_BASE_;
const unsigned long ulR13 = ( unsigned long ) &_SDA_BASE_;
#if 0
//_RB_
#ifdef XPAR_MICROBLAZE_USE_ICACHE
microblaze_invalidate_icache();
microblaze_enable_icache();
@ -150,74 +151,76 @@ const unsigned long ulR13 = ( unsigned long ) &_SDA_BASE_;
/* First stack an initial value for the critical section nesting. This
is initialised to zero as tasks are started with interrupts enabled. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x00; /* R0. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x00; /* R0 is always zero. */
/* R1 is the SP. */
/* Place an initial value for all the general purpose registers. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) ulR2; /* R2 - small data area. */
*pxTopOfStack = ( portSTACK_TYPE ) ulR2; /* R2 - read only small data area. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x03; /* R3. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x03; /* R3 - return values and temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x04; /* R4. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x04; /* R4 - return values and temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters;/* R5 contains the function call parameters. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x06; /* R6. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x06; /* R6 - other parameters and temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x07; /* R7. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x07; /* R7 - other parameters and temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x08; /* R8. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x08; /* R8 - other parameters and temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x09; /* R9. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x09; /* R9 - other parameters and temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x0a; /* R10. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x0a; /* R10 - other parameters and temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x0b; /* R11. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x0b; /* R11 - temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x0c; /* R12. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x0c; /* R12 - temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) ulR13; /* R13 - small data read write area. */
*pxTopOfStack = ( portSTACK_TYPE ) ulR13; /* R13 - read/write small data area. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) pxCode; /* R14. */
*pxTopOfStack = ( portSTACK_TYPE ) pxCode; /* R14 - return address for interrupt. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x0f; /* R15. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x0f; /* R15 - return address for subroutine. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x10; /* R16. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x10; /* R16 - return address for trap (debugger). */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x11; /* R17. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x11; /* R17 - return address for exceptions, if configured. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x12; /* R18. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x12; /* R18 - reserved for assembler and compiler temporaries. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x13; /* R19. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x13; /* R19 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x14; /* R20. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x14; /* R20 - reserved for storing a pointer to the Global Offset Table (GOT) in Position Independent Code (PIC). Non-volatile in non-PIC code. Must be saved across function calls. Callee-save. Not used by FreeRTOS. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x15; /* R21. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x15; /* R21 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x16; /* R22. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x16; /* R22 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x17; /* R23. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x17; /* R23 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x18; /* R24. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x18; /* R24 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x19; /* R25. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x19; /* R25 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x1a; /* R26. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x1a; /* R26 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x1b; /* R27. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x1b; /* R27 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x1c; /* R28. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x1c; /* R28 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x1d; /* R29. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x1d; /* R29 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x1e; /* R30. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x1e; /* R30 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
/* The MSR is stacked between R30 and R31. */
*pxTopOfStack = portINITIAL_MSR_STATE;
pxTopOfStack--;
*pxTopOfStack = ( portSTACK_TYPE ) 0x1f; /* R31. */
*pxTopOfStack = ( portSTACK_TYPE ) 0x1f; /* R31 - must be saved across function calls. Callee-save. */
pxTopOfStack--;
/* Return a pointer to the top of the stack we have generated so this can
@ -359,9 +362,13 @@ portBASE_TYPE xReturn = XST_SUCCESS;
*/
void vTickISR( void *pvUnused )
{
extern void vApplicationClearTimerInterrupt();
/* Ensure the unused parameter does not generate a compiler warning. */
( void ) pvUnused;
vApplicationClearTimerInterrupt();
/* Increment the RTOS tick - this might cause a task to unblock. */
vTaskIncrementTick();
@ -387,7 +394,7 @@ extern Xil_ExceptionHandler vPortFreeRTOSInterruptHandler;
/* Register the interrupt controller handle that uses the exception
table. */
Xil_ExceptionRegisterHandler( XIL_EXCEPTION_ID_INT, vPortFreeRTOSInterruptHandler, NULL );
//_RB_ Xil_ExceptionRegisterHandler( XIL_EXCEPTION_ID_INT, vPortFreeRTOSInterruptHandler, NULL );
/* Service all pending interrupts each time the handler is entered. */
XIntc_SetIntrSvcOption( xInterruptControllerInstance.BaseAddress, XIN_SVC_ALL_ISRS_OPTION );

6
Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoSource/FreeRTOS_Source/portable/GCC/MicroBlaze/portasm.s
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@ -63,7 +63,8 @@
.extern uxCriticalNesting
.extern pulISRStack
.global vPortFreeRTOSInterruptHandler
/* .global vPortFreeRTOSInterruptHandler */
.global _interrupt_handler
.global VPortYieldASM
.global vStartFirstTask
@ -188,7 +189,8 @@
.align 2
vPortFreeRTOSInterruptHandler:
/*vPortFreeRTOSInterruptHandler:*/
_interrupt_handler:
portSAVE_CONTEXT
/* Entered via an interrupt so interrupts must be enabled in msr. */
ori r31, r31, 2

49
Demo/MicroBlaze_Spartan-6_EthernetLite/SDKProjects/RTOSDemoSource/main-blinky.c
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@ -172,6 +172,41 @@ static volatile unsigned long ulGPIOState = 0UL;
static XTmrCtr xTimer0Instance;
/*-----------------------------------------------------------*/
#define JUST_TESTING
#ifdef JUST_TESTING
volatile unsigned long ul1 = 0, ul2 = 0;
void vTemp1( void *pvParameters )
{
for( ;; )
{
ul1++;
//taskYIELD();
}
}
void vTemp2( void *pvParameters )
{
for( ;; )
{
ul2++;
//taskYIELD();
}
}
void main( void )
{
prvSetupHardware();
xTaskCreate( vTemp1, ( signed char * ) "Test1", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY + 1, NULL );
xTaskCreate( vTemp2, ( signed char * ) "Test2", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY + 1, NULL );
vTaskStartScheduler();
for( ;; );
}
#else /* JUST_TESTING */
int main(void)
{
@ -210,7 +245,7 @@ int main(void)
for( ;; );
}
/*-----------------------------------------------------------*/
#endif /* JUST_TESTING */
static void vLEDTimerCallback( xTimerHandle xTimer )
{
/* The timer has expired - so no button pushes have occurred in the last
@ -416,3 +451,15 @@ extern void vTickISR( void *pvUnused );
}
void vApplicationClearTimerInterrupt( void )
{
unsigned long ulCSR;
/* Increment the RTOS tick - this might cause a task to unblock. */
vTaskIncrementTick();
/* Clear the timer interrupt */
ulCSR = XTmrCtr_GetControlStatusReg( XPAR_AXI_TIMER_0_BASEADDR, 0 );
XTmrCtr_SetControlStatusReg( XPAR_AXI_TIMER_0_BASEADDR, 0, ulCSR );
}

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