1*52e6676eSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2*52e6676eSThomas Gleixner // Copyright (C) 2012-2014 Broadcom Corporation 3eeda4cb9SAlex Elder 4eeda4cb9SAlex Elder 5eeda4cb9SAlex Elder #include <linux/init.h> 6eeda4cb9SAlex Elder #include <linux/printk.h> 7eeda4cb9SAlex Elder #include <asm/hardware/cache-l2x0.h> 8eeda4cb9SAlex Elder 9eeda4cb9SAlex Elder #include "bcm_kona_smc.h" 10423779cfSBen Dooks #include "kona_l2_cache.h" 11eeda4cb9SAlex Elder kona_l2_cache_init(void)12eeda4cb9SAlex Eldervoid __init kona_l2_cache_init(void) 13eeda4cb9SAlex Elder { 14eeda4cb9SAlex Elder unsigned int result; 15eeda4cb9SAlex Elder int ret; 16eeda4cb9SAlex Elder 17eeda4cb9SAlex Elder ret = bcm_kona_smc_init(); 18eeda4cb9SAlex Elder if (ret) { 19eeda4cb9SAlex Elder pr_info("Secure API not available (%d). Skipping L2 init.\n", 20eeda4cb9SAlex Elder ret); 21eeda4cb9SAlex Elder return; 22eeda4cb9SAlex Elder } 23eeda4cb9SAlex Elder 24eeda4cb9SAlex Elder result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0); 25eeda4cb9SAlex Elder if (result != SEC_ROM_RET_OK) { 26eeda4cb9SAlex Elder pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n", 27eeda4cb9SAlex Elder result); 28eeda4cb9SAlex Elder return; 29eeda4cb9SAlex Elder } 30eeda4cb9SAlex Elder 31eeda4cb9SAlex Elder /* 32eeda4cb9SAlex Elder * The aux_val and aux_mask have no effect since L2 cache is already 33eeda4cb9SAlex Elder * enabled. Pass 0s for aux_val and 1s for aux_mask for default value. 34eeda4cb9SAlex Elder */ 35eeda4cb9SAlex Elder ret = l2x0_of_init(0, ~0); 36eeda4cb9SAlex Elder if (ret) 37eeda4cb9SAlex Elder pr_err("Couldn't enable L2 cache: %d\n", ret); 38eeda4cb9SAlex Elder } 39