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40 ******************************************************************************/
41 /*****************************************************************************/
45 * This file contains the initial vector table for the Cortex A9 processor
48 * MODIFICATION HISTORY:
50 * Ver Who Date Changes
51 * ----- ------- -------- ---------------------------------------------------
52 * 1.00a ecm/sdm 10/20/09 Initial version
53 * 3.05a sdm 02/02/12 Save lr when profiling is enabled
54 * 3.10a srt 04/18/13 Implemented ARM Erratas. Please refer to file
55 * 'xil_errata.h' for errata description
62 ******************************************************************************/
64 #include "xil_errata.h"
71 .global _freertos_vector_table
75 .global DataAbortInterrupt
76 .global PrefetchAbortInterrupt
77 .global vPortInstallFreeRTOSVectorTable
79 .extern FreeRTOS_IRQ_Handler
80 .extern FreeRTOS_SWI_Handler
84 _freertos_vector_table:
88 B FreeRTOS_PrefetchAbortHandler
89 B FreeRTOS_DataAbortHandler
90 NOP /* Placeholder for address exception vector*/
94 _irq: .word FreeRTOS_IRQ_Handler
95 _swi: .word FreeRTOS_SWI_Handler
99 FreeRTOS_FIQHandler: /* FIQ vector handler */
100 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
102 blx FIQInterrupt /* FIQ vector */
103 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
104 subs pc, lr, #4 /* adjust return */
107 FreeRTOS_Undefined: /* Undefined handler */
111 FreeRTOS_DataAbortHandler: /* Data Abort handler */
112 #ifdef CONFIG_ARM_ERRATA_775420
115 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
116 blx DataAbortInterrupt /*DataAbortInterrupt :call C function here */
117 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
118 subs pc, lr, #4 /* adjust return */
121 FreeRTOS_PrefetchAbortHandler: /* Prefetch Abort handler */
122 #ifdef CONFIG_ARM_ERRATA_775420
125 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
126 blx PrefetchAbortInterrupt /* PrefetchAbortInterrupt: call C function here */
127 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
128 subs pc, lr, #4 /* adjust return */
131 .type vPortInstallFreeRTOSVectorTable, %function
132 vPortInstallFreeRTOSVectorTable:
134 /* Set VBAR to the vector table that contains the FreeRTOS handlers. */
135 ldr r0, =_freertos_vector_table
136 mcr p15, 0, r0, c12, c0, 0