mirror of https://gitee.com/openkylin/linux.git
36 lines
870 B
ArmAsm
36 lines
870 B
ArmAsm
/* 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)
|