2 * Copyright (c) 2010 Samsung Electronics.
3 * Minkyu Kang <mk7.kang@samsung.com>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <asm/system.h>
28 enum l2_cache_params {
29 CACHE_TAG_RAM_SETUP = (1 << 9),
30 CACHE_DATA_RAM_SETUP = (1 << 5),
31 CACHE_TAG_RAM_LATENCY = (2 << 6),
32 CACHE_DATA_RAM_LATENCY = (2 << 0)
35 void reset_cpu(ulong addr)
37 writel(0x1, samsung_get_base_swreset());
40 #ifndef CONFIG_SYS_DCACHE_OFF
41 void enable_caches(void)
43 /* Enable D-cache. I-cache is already enabled in start.S */
48 #ifndef CONFIG_SYS_L2CACHE_OFF
50 * Set L2 cache parameters
52 static void exynos5_set_l2cache_params(void)
56 asm volatile("mrc p15, 1, %0, c9, c0, 2\n" : "=r"(val));
58 val |= CACHE_TAG_RAM_SETUP |
59 CACHE_DATA_RAM_SETUP |
60 CACHE_TAG_RAM_LATENCY |
61 CACHE_DATA_RAM_LATENCY;
63 asm volatile("mcr p15, 1, %0, c9, c0, 2\n" : : "r"(val));
67 * Sets L2 cache related parameters before enabling data cache
69 void v7_outer_cache_enable(void)
72 exynos5_set_l2cache_params();