1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2016, Spreadtrum Communications Inc. 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 <drivers/gic.h> 30 #include <kernel/boot.h> 31 #include <kernel/interrupt.h> 32 #include <kernel/panic.h> 33 #include <mm/core_memprot.h> 34 #include <platform_config.h> 35 #include <trace.h> 36 37 register_phys_mem_pgdir(MEM_AREA_IO_NSEC, 38 ROUNDDOWN(CONSOLE_UART_BASE, CORE_MMU_PGDIR_SIZE), 39 CORE_MMU_PGDIR_SIZE); 40 41 register_phys_mem_pgdir(MEM_AREA_IO_SEC, 42 ROUNDDOWN(GIC_BASE, CORE_MMU_PGDIR_SIZE), 43 CORE_MMU_PGDIR_SIZE); 44 45 register_phys_mem_pgdir(MEM_AREA_IO_SEC, 46 ROUNDDOWN(GIC_BASE + GICD_OFFSET, CORE_MMU_PGDIR_SIZE), 47 CORE_MMU_PGDIR_SIZE); 48 49 static struct gic_data gic_data; 50 51 void main_init_gic(void) 52 { 53 vaddr_t gicc_base; 54 vaddr_t gicd_base; 55 56 gicc_base = (vaddr_t)phys_to_virt(GIC_BASE + GICC_OFFSET, 57 MEM_AREA_IO_SEC); 58 gicd_base = (vaddr_t)phys_to_virt(GIC_BASE + GICD_OFFSET, 59 MEM_AREA_IO_SEC); 60 if (!gicc_base || !gicd_base) 61 panic(); 62 63 gic_init_base_addr(&gic_data, gicc_base, gicd_base); 64 65 itr_init(&gic_data.chip); 66 } 67 68 void itr_core_handler(void) 69 { 70 gic_it_handle(&gic_data); 71 } 72