1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Created by:  Dave Martin, 2012-06-22
4  * Copyright:   (C) 2012-2013  Linaro Limited
5  */
6 
7 #include <linux/linkage.h>
8 
9 
10 ENTRY(dcscb_power_up_setup)
11 
12 	cmp	r0, #0			@ check affinity level
13 	beq	2f
14 
15 /*
16  * Enable cluster-level coherency, in preparation for turning on the MMU.
17  * The ACTLR SMP bit does not need to be set here, because cpu_resume()
18  * already restores that.
19  *
20  * A15/A7 may not require explicit L2 invalidation on reset, dependent
21  * on hardware integration decisions.
22  * For now, this code assumes that L2 is either already invalidated,
23  * or invalidation is not required.
24  */
25 
26 	b	cci_enable_port_for_self
27 
28 2:	@ Implementation-specific local CPU setup operations should go here,
29 	@ if any.  In this case, there is nothing to do.
30 
31 	bx	lr
32 
33 ENDPROC(dcscb_power_up_setup)
34