1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2014 Samsung Electronics
4 * Minkyu Kang <mk7.kang@samsung.com>
5 * Robert Baldyga <r.baldyga@samsung.com>
6 *
7 * based on arch/arm/cpu/armv7/omap3/cache.S
8 */
9
10 #include <common.h>
11 #include <cpu_func.h>
12 #include <asm/cache.h>
13
14 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
enable_caches(void)15 void enable_caches(void)
16 {
17 dcache_enable();
18 }
19
disable_caches(void)20 void disable_caches(void)
21 {
22 dcache_disable();
23 }
24 #endif
25
26 #ifndef CONFIG_SYS_L2CACHE_OFF
v7_outer_cache_enable(void)27 void v7_outer_cache_enable(void)
28 {
29 __asm(
30 "push {r0, r1, r2, lr}\n\t"
31 "mrc 15, 0, r3, cr1, cr0, 1\n\t"
32 "orr r3, r3, #2\n\t"
33 "mcr 15, 0, r3, cr1, cr0, 1\n\t"
34 "pop {r1, r2, r3, pc}"
35 );
36 }
37
v7_outer_cache_disable(void)38 void v7_outer_cache_disable(void)
39 {
40 __asm(
41 "push {r0, r1, r2, lr}\n\t"
42 "mrc 15, 0, r3, cr1, cr0, 1\n\t"
43 "bic r3, r3, #2\n\t"
44 "mcr 15, 0, r3, cr1, cr0, 1\n\t"
45 "pop {r1, r2, r3, pc}"
46 );
47 }
48 #endif
49