1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2016, GlobalLogic 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 <console.h> 30 #include <crypto/crypto.h> 31 #include <kernel/boot.h> 32 #include <kernel/panic.h> 33 #include <mm/core_memprot.h> 34 #include <platform_config.h> 35 #include <stdint.h> 36 #include <drivers/scif.h> 37 #include <drivers/gic.h> 38 39 register_phys_mem_pgdir(MEM_AREA_IO_SEC, CONSOLE_UART_BASE, SCIF_REG_SIZE); 40 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICD_BASE, GIC_DIST_REG_SIZE); 41 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICC_BASE, GIC_CPU_REG_SIZE); 42 #ifdef PRR_BASE 43 register_phys_mem_pgdir(MEM_AREA_IO_SEC, PRR_BASE, SMALL_PAGE_SIZE); 44 #endif 45 46 /* Legacy platforms */ 47 #if defined(PLATFORM_FLAVOR_salvator_h3) || \ 48 defined(PLATFORM_FLAVOR_salvator_h3_4x2g) || \ 49 defined(PLATFORM_FLAVOR_salvator_m3) || \ 50 defined(PLATFORM_FLAVOR_salvator_m3_2x4g) || \ 51 defined(PLATFORM_FLAVOR_spider_s4) 52 register_ddr(NSEC_DDR_0_BASE, NSEC_DDR_0_SIZE); 53 register_ddr(NSEC_DDR_1_BASE, NSEC_DDR_1_SIZE); 54 #ifdef NSEC_DDR_2_BASE 55 register_ddr(NSEC_DDR_2_BASE, NSEC_DDR_2_SIZE); 56 #endif 57 #ifdef NSEC_DDR_3_BASE 58 register_ddr(NSEC_DDR_3_BASE, NSEC_DDR_3_SIZE); 59 #endif 60 #endif 61 62 static struct scif_uart_data console_data __nex_bss; 63 static struct gic_data gic_data __nex_bss; 64 65 #ifdef PRR_BASE 66 uint32_t rcar_prr_value __nex_bss; 67 #endif 68 69 void console_init(void) 70 { 71 scif_uart_init(&console_data, CONSOLE_UART_BASE); 72 register_serial_console(&console_data.chip); 73 } 74 75 #ifdef CFG_RCAR_ROMAPI 76 /* Should only seed from a hardware random number generator */ 77 static_assert(!IS_ENABLED(CFG_WITH_SOFTWARE_PRNG)); 78 79 unsigned long plat_get_aslr_seed(void) 80 { 81 unsigned long seed = 0; 82 83 /* On RCAR we can get hw random bytes on early boot stages */ 84 if (crypto_rng_read(&seed, sizeof(seed))) 85 panic(); 86 87 return seed; 88 } 89 #endif 90 91 void main_init_gic(void) 92 { 93 gic_init(&gic_data, GICC_BASE, GICD_BASE); 94 itr_init(&gic_data.chip); 95 } 96 97 void main_secondary_init_gic(void) 98 { 99 gic_cpu_init(&gic_data); 100 } 101 102 void itr_core_handler(void) 103 { 104 gic_it_handle(&gic_data); 105 } 106 107