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41 /*****************************************************************************/
45 * This file contains CPU specific initialization. Invoked from main CRT
48 * MODIFICATION HISTORY:
50 * Ver Who Date Changes
51 * ----- ------- -------- ---------------------------------------------------
52 * 1.00a ecm/sdm 10/20/09 Initial version
53 * 3.04a sdm 01/02/12 Updated to clear cp15 regs with unknown reset values
60 ******************************************************************************/
67 /* Clear cp15 regs with unknown reset values */
69 mcr p15, 0, r0, c5, c0, 0 /* DFSR */
70 mcr p15, 0, r0, c5, c0, 1 /* IFSR */
71 mcr p15, 0, r0, c6, c0, 0 /* DFAR */
72 mcr p15, 0, r0, c6, c0, 2 /* IFAR */
73 mcr p15, 0, r0, c9, c13, 2 /* PMXEVCNTR */
74 mcr p15, 0, r0, c13, c0, 2 /* TPIDRURW */
75 mcr p15, 0, r0, c13, c0, 3 /* TPIDRURO */
76 mcr p15, 5, r0, c15, c5, 2 /* Write Lockdown TLB VA */
78 /* Reset and start Cycle Counter */
79 mov r2, #0x80000000 /* clear overflow */
80 mcr p15, 0, r2, c9, c12, 3
81 mov r2, #0xd /* D, C, E */
82 mcr p15, 0, r2, c9, c12, 0
83 mov r2, #0x80000000 /* enable cycle counter */
84 mcr p15, 0, r2, c9, c12, 1