u-boot/arch/arm/cpu/armv7/s5pc1xx/cache.S

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/*
* Copyright (C) 2009 Samsung Electronics
* Minkyu Kang <mk7.kang@samsung.com>
*
* based on arch/arm/cpu/armv7/omap3/cache.S
*
* SPDX-License-Identifier: GPL-2.0+
*/
.align 5
#include <linux/linkage.h>
#ifndef CONFIG_SYS_L2CACHE_OFF
ENTRY(v7_outer_cache_enable)
push {r0, r1, r2, lr}
mrc 15, 0, r3, cr1, cr0, 1
orr r3, r3, #2
mcr 15, 0, r3, cr1, cr0, 1
pop {r1, r2, r3, pc}
ENDPROC(v7_outer_cache_enable)
ENTRY(v7_outer_cache_disable)
push {r0, r1, r2, lr}
mrc 15, 0, r3, cr1, cr0, 1
bic r3, r3, #2
mcr 15, 0, r3, cr1, cr0, 1
pop {r1, r2, r3, pc}
ENDPROC(v7_outer_cache_disable)
#endif