1/*
 2 * Copyright (C) 2012-2014 Broadcom Corporation
 3 *
 4 * This program is free software; you can redistribute it and/or
 5 * modify it under the terms of the GNU General Public License as
 6 * published by the Free Software Foundation version 2.
 7 *
 8 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 9 * kind, whether express or implied; without even the implied warranty
10 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 */
13
14
15#include <linux/init.h>
16#include <linux/printk.h>
17#include <asm/hardware/cache-l2x0.h>
18
19#include "bcm_kona_smc.h"
20#include "kona_l2_cache.h"
21
22void __init kona_l2_cache_init(void)
23{
24	unsigned int result;
25	int ret;
26
27	ret = bcm_kona_smc_init();
28	if (ret) {
29		pr_info("Secure API not available (%d). Skipping L2 init.\n",
30			ret);
31		return;
32	}
33
34	result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
35	if (result != SEC_ROM_RET_OK) {
36		pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n",
37			result);
38		return;
39	}
40
41	/*
42	 * The aux_val and aux_mask have no effect since L2 cache is already
43	 * enabled.  Pass 0s for aux_val and 1s for aux_mask for default value.
44	 */
45	ret = l2x0_of_init(0, ~0);
46	if (ret)
47		pr_err("Couldn't enable L2 cache: %d\n", ret);
48}