1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2017, Texas Instruments 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES// LOSS OF USE, DATA, OR PROFITS// OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <arm32.h> 30 #include <io.h> 31 #include <kernel/boot.h> 32 #include <kernel/tz_ssvce_def.h> 33 #include <kernel/tz_ssvce_pl310.h> 34 #include <mm/core_memprot.h> 35 #include <platform_config.h> 36 37 register_phys_mem_pgdir(MEM_AREA_IO_SEC, PL310_BASE, PL310_SIZE); 38 39 vaddr_t pl310_base(void) 40 { 41 static void *va; 42 43 if (cpu_mmu_enabled()) { 44 if (!va) 45 va = phys_to_virt(PL310_BASE, MEM_AREA_IO_SEC, 46 PL310_SIZE); 47 return (vaddr_t)va; 48 } 49 50 return PL310_BASE; 51 } 52 53 /* ROM handles initial setup for us */ 54 void arm_cl2_config(vaddr_t pl310_base) 55 { 56 (void)pl310_base; 57 } 58 59 /* We provide platform services that expect the cache to be disabled on boot */ 60 void arm_cl2_enable(vaddr_t pl310_base) 61 { 62 (void)pl310_base; 63 } 64