1 /******************************************************************************
3 * Copyright (C) 2014 - 2015 Xilinx, Inc. All rights reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * Use of the Software is limited solely to applications:
16 * (a) running on a Xilinx device, or
17 * (b) that interact with a Xilinx device through a bus or interconnect.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
23 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
24 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 * Except as contained in this notice, the name of the Xilinx shall not be used
28 * in advertising or otherwise to promote the sale, use or other dealings in
29 * this Software without prior written authorization from Xilinx.
31 ******************************************************************************/
32 /*****************************************************************************/
36 * This file contains the initial vector table for the Cortex R5 processor
39 * MODIFICATION HISTORY:
41 * Ver Who Date Changes
42 * ----- ------- -------- ---------------------------------------------------
43 * 5.00 pkp 02/10/14 Initial version
50 ******************************************************************************/
60 .globl DataAbortInterrupt
61 .globl PrefetchAbortInterrupt
66 .section .vectors, "a"
71 ldr pc,=PrefetchAbortHandler
72 ldr pc,=DataAbortHandler
73 NOP /* Placeholder for address exception vector*/
78 IRQHandler: /* IRQ vector handler */
79 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code*/
80 bl IRQInterrupt /* IRQ vector */
81 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
82 subs pc, lr, #4 /* adjust return */
84 FIQHandler: /* FIQ vector handler */
85 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
87 bl FIQInterrupt /* FIQ vector */
88 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
89 subs pc, lr, #4 /* adjust return */
91 Undefined: /* Undefined handler */
92 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
93 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
97 SVCHandler: /* SWI handler */
98 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
99 tst r0, #0x20 /* check the T bit */
100 ldrneh r0, [lr,#-2] /* Thumb mode */
101 bicne r0, r0, #0xff00 /* Thumb mode */
102 ldreq r0, [lr,#-4] /* ARM mode */
103 biceq r0, r0, #0xff000000 /* ARM mode */
104 bl SWInterrupt /* SWInterrupt: call C function here */
105 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
106 movs pc, lr /* adjust return */
108 DataAbortHandler: /* Data Abort handler */
109 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
110 bl DataAbortInterrupt /*DataAbortInterrupt :call C function here */
111 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
112 subs pc, lr, #8 /* adjust return */
114 PrefetchAbortHandler: /* Prefetch Abort handler */
115 stmdb sp!,{r0-r3,r12,lr} /* state save from compiled code */
116 bl PrefetchAbortInterrupt /* PrefetchAbortInterrupt: call C function here */
117 ldmia sp!,{r0-r3,r12,lr} /* state restore from compiled code */
118 subs pc, lr, #4 /* adjust return */