1 /******************************************************************************
3 * Copyright (C) 2009 - 2014 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 /*****************************************************************************/
37 * MODIFICATION HISTORY:
39 * Ver Who Date Changes
40 * ----- ---- -------- ---------------------------------------------------
41 * 1.00a ecm 10/20/09 Initial version
42 * 3.05a sdm 02/02/12 Added code for profiling
43 * 3.06a sgd 05/16/12 Added global constructors and cleanup code
44 * Uart initialization based on compiler flag
45 * 3.07a sgd 07/05/12 Updated with reset and start Global Timer
46 * 3.07a sgd 10/19/12 SMC NOR and SRAM initialization with build option
53 ******************************************************************************/
81 bl __cpu_init /* Initialize the CPU first (BSP provides this) */
86 ldr r1,.Lsbss_start /* calculate beginning of the SBSS */
87 ldr r2,.Lsbss_end /* calculate end of the SBSS */
91 bge .Lenclsbss /* If no SBSS, no clearing required */
97 ldr r1,.Lbss_start /* calculate beginning of the BSS */
98 ldr r2,.Lbss_end /* calculate end of the BSS */
102 bge .Lenclbss /* If no BSS, no clearing required */
108 /* set stack pointer */
109 ldr r13,.Lstack /* stack address */
111 /* Reset and start Global Timer */
117 /* Initialize STDOUT */
120 /* Initialize the SMC interfaces for NOR */
123 /* Initialize the SMC interfaces for SRAM */
127 #ifdef PROFILING /* defined in Makefile */
128 /* Setup profiling stuff */
130 #endif /* PROFILING */
132 /* run global constructors */
135 /* make sure argc and argv are valid */
142 /* Cleanup global constructors */
146 /* Cleanup profiling stuff */
148 #endif /* PROFILING */
153 .Lexit: /* should never get here */
157 .size _start,.Lstart-_start