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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
47 * 4.2 pkp 08/04/14 Removed PEEP board related code which contained
48 * initialization of uart smc nor and sram
49 * 5.3 pkp 10/07/15 Added support for OpenAMP by not initializing global
50 * timer when USE_AMP flag is defined
51 * 6.6 srm 10/18/17 Added timer configuration using XTime_StartTTCTimer API.
52 * Now the TTC instance as specified by the user will be
60 ******************************************************************************/
61 #include "bspconfig.h"
86 bl __cpu_init /* Initialize the CPU first (BSP provides this) */
91 ldr r1,.Lsbss_start /* calculate beginning of the SBSS */
92 ldr r2,.Lsbss_end /* calculate end of the SBSS */
96 bge .Lenclsbss /* If no SBSS, no clearing required */
102 ldr r1,.Lbss_start /* calculate beginning of the BSS */
103 ldr r2,.Lbss_end /* calculate end of the BSS */
107 bge .Lenclbss /* If no BSS, no clearing required */
113 /* set stack pointer */
114 ldr r13,.Lstack /* stack address */
116 /* Reset and start Global Timer */
120 /* Reset and start Triple Timer Counter */
121 #if defined SLEEP_TIMER_BASEADDR
122 bl XTime_StartTTCTimer
129 #ifdef PROFILING /* defined in Makefile */
130 /* Setup profiling stuff */
132 #endif /* PROFILING */
134 /* run global constructors */
137 /* make sure argc and argv are valid */
144 /* Cleanup global constructors */
148 /* Cleanup profiling stuff */
150 #endif /* PROFILING */
155 .Lexit: /* should never get here */
159 .size _start,.Lstart-_start