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 22 void __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 } 49