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 12 void __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