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
21void __init kona_l2_cache_init(void)
22{
23	unsigned int result;
24	int ret;
25
26	ret = bcm_kona_smc_init();
27	if (ret) {
28		pr_info("Secure API not available (%d). Skipping L2 init.\n",
29			ret);
30		return;
31	}
32
33	result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
34	if (result != SEC_ROM_RET_OK) {
35		pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n",
36			result);
37		return;
38	}
39
40	/*
41	 * The aux_val and aux_mask have no effect since L2 cache is already
42	 * enabled.  Pass 0s for aux_val and 1s for aux_mask for default value.
43	 */
44	ret = l2x0_of_init(0, ~0);
45	if (ret)
46		pr_err("Couldn't enable L2 cache: %d\n", ret);
47}
48