2 * arch/arm/cpu/armv7/rmobile/lowlevel_init_ca15.S
3 * This file is lager low level initialize.
5 * Copyright (C) 2013 Renesas Electronics Corporation
7 * SPDX-License-Identifier: GPL-2.0
11 #include <linux/linkage.h>
14 mrc p15, 0, r4, c0, c0, 5 /* mpidr */
15 orr r4, r4, r4, lsr #6
16 and r4, r4, #7 /* id 0-3 = ca15.0,1,2,3 */
23 * CPU ID #1-#3 come here
27 ldr r1, =0xe6180000 /* sysc */
28 1: ldr r0, [r1, #0x20] /* sbar */
34 * Only CPU ID #0 comes here
38 /* surpress wfe if ca15 */
40 mrceq p15, 0, r0, c1, c0, 1 /* actlr */
42 mcreq p15, 0, r0, c1, c0, 1
43 /* and set l2 latency */
44 mrceq p15, 1, r0, c9, c0, 2 /* l2ctlr */
45 orreq r0, r0, #0x00000800
46 orreq r0, r0, #0x00000003
47 mcreq p15, 1, r0, c9, c0, 2
49 ldr r3, =(CONFIG_SYS_INIT_SP_ADDR)
53 /* initialize system */
59 ENDPROC(lowlevel_init)