1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2012-2014 Broadcom Corporation 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or 5*4882a593Smuzhiyun * modify it under the terms of the GNU General Public License as 6*4882a593Smuzhiyun * published by the Free Software Foundation version 2. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * This program is distributed "as is" WITHOUT ANY WARRANTY of any 9*4882a593Smuzhiyun * kind, whether express or implied; without even the implied warranty 10*4882a593Smuzhiyun * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11*4882a593Smuzhiyun * GNU General Public License for more details. 12*4882a593Smuzhiyun */ 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #include <linux/init.h> 16*4882a593Smuzhiyun #include <linux/printk.h> 17*4882a593Smuzhiyun #include <asm/hardware/cache-l2x0.h> 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #include "bcm_kona_smc.h" 20*4882a593Smuzhiyun #include "kona_l2_cache.h" 21*4882a593Smuzhiyun kona_l2_cache_init(void)22*4882a593Smuzhiyunvoid __init kona_l2_cache_init(void) 23*4882a593Smuzhiyun { 24*4882a593Smuzhiyun unsigned int result; 25*4882a593Smuzhiyun int ret; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun ret = bcm_kona_smc_init(); 28*4882a593Smuzhiyun if (ret) { 29*4882a593Smuzhiyun pr_info("Secure API not available (%d). Skipping L2 init.\n", 30*4882a593Smuzhiyun ret); 31*4882a593Smuzhiyun return; 32*4882a593Smuzhiyun } 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0); 35*4882a593Smuzhiyun if (result != SEC_ROM_RET_OK) { 36*4882a593Smuzhiyun pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n", 37*4882a593Smuzhiyun result); 38*4882a593Smuzhiyun return; 39*4882a593Smuzhiyun } 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* 42*4882a593Smuzhiyun * The aux_val and aux_mask have no effect since L2 cache is already 43*4882a593Smuzhiyun * enabled. Pass 0s for aux_val and 1s for aux_mask for default value. 44*4882a593Smuzhiyun */ 45*4882a593Smuzhiyun ret = l2x0_of_init(0, ~0); 46*4882a593Smuzhiyun if (ret) 47*4882a593Smuzhiyun pr_err("Couldn't enable L2 cache: %d\n", ret); 48*4882a593Smuzhiyun } 49