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/*
* Copyright (C) 2012-2014 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/of_platform.h>
#include <asm/hardware/cache-l2x0.h>
#include "bcm_kona_smc.h"
#include "kona.h"
void __init kona_l2_cache_init(void)
{
unsigned int result;
int ret;
if (!IS_ENABLED(CONFIG_CACHE_L2X0))
return;
ret = bcm_kona_smc_init();
if (ret) {
pr_info("Secure API not available (%d). Skipping L2 init.\n",
ret);
return;
}
result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
if (result != SEC_ROM_RET_OK) {
pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n",
result);
return;
}
/*
* The aux_val and aux_mask have no effect since L2 cache is already
* enabled. Pass 0s for aux_val and 1s for aux_mask for default value.
*/
ret = l2x0_of_init(0, ~0);
if (ret)
pr_err("Couldn't enable L2 cache: %d\n", ret);
}
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