swh:1:snp:c2847dfd741eae21606027cf29250d1ebcd63fb4
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Tip revision: 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 authored by Linus Torvalds on 31 May 2020, 23:49:15 UTC
Linux 5.7
Tip revision: 3d77e6a
dcscb_setup.S
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * arch/arm/include/asm/dcscb_setup.S
 *
 * Created by:  Dave Martin, 2012-06-22
 * Copyright:   (C) 2012-2013  Linaro Limited
 */

#include <linux/linkage.h>


ENTRY(dcscb_power_up_setup)

	cmp	r0, #0			@ check affinity level
	beq	2f

/*
 * Enable cluster-level coherency, in preparation for turning on the MMU.
 * The ACTLR SMP bit does not need to be set here, because cpu_resume()
 * already restores that.
 *
 * A15/A7 may not require explicit L2 invalidation on reset, dependent
 * on hardware integration decisions.
 * For now, this code assumes that L2 is either already invalidated,
 * or invalidation is not required.
 */

	b	cci_enable_port_for_self

2:	@ Implementation-specific local CPU setup operations should go here,
	@ if any.  In this case, there is nothing to do.

	bx	lr

ENDPROC(dcscb_power_up_setup)
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