1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright (C) 2012-2014 Broadcom Corporation
3
4
5#include <linux/init.h>
6#include <linux/printk.h>
7#include <asm/hardware/cache-l2x0.h>
8
9#include "bcm_kona_smc.h"
10#include "kona_l2_cache.h"
11
12void __init kona_l2_cache_init(void)
13{
14	unsigned int result;
15	int ret;
16
17	ret = bcm_kona_smc_init();
18	if (ret) {
19		pr_info("Secure API not available (%d). Skipping L2 init.\n",
20			ret);
21		return;
22	}
23
24	result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
25	if (result != SEC_ROM_RET_OK) {
26		pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n",
27			result);
28		return;
29	}
30
31	/*
32	 * The aux_val and aux_mask have no effect since L2 cache is already
33	 * enabled.  Pass 0s for aux_val and 1s for aux_mask for default value.
34	 */
35	ret = l2x0_of_init(0, ~0);
36	if (ret)
37		pr_err("Couldn't enable L2 cache: %d\n", ret);
38}
39