1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2016, Xilinx 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 <platform_config.h> 30 31 #include <stdint.h> 32 #include <string.h> 33 34 #include <drivers/gic.h> 35 #include <drivers/cdns_uart.h> 36 37 #include <arm.h> 38 #include <console.h> 39 #include <kernel/generic_boot.h> 40 #include <kernel/pm_stubs.h> 41 #include <kernel/misc.h> 42 #include <kernel/tee_time.h> 43 #include <mm/core_memprot.h> 44 #include <tee/entry_fast.h> 45 #include <tee/entry_std.h> 46 #include <trace.h> 47 48 static void main_fiq(void); 49 static struct gic_data gic_data; 50 static struct cdns_uart_data console_data; 51 52 register_phys_mem_pgdir(MEM_AREA_IO_SEC, 53 ROUNDDOWN(CONSOLE_UART_BASE, CORE_MMU_PGDIR_SIZE), 54 CORE_MMU_PGDIR_SIZE); 55 56 register_phys_mem_pgdir(MEM_AREA_IO_SEC, 57 ROUNDDOWN(GIC_BASE, CORE_MMU_PGDIR_SIZE), 58 CORE_MMU_PGDIR_SIZE); 59 60 register_phys_mem_pgdir(MEM_AREA_IO_SEC, 61 ROUNDDOWN(GIC_BASE + GICD_OFFSET, CORE_MMU_PGDIR_SIZE), 62 CORE_MMU_PGDIR_SIZE); 63 64 static const struct thread_handlers handlers = { 65 .fast_smc = tee_entry_fast, 66 .nintr = main_fiq, 67 #if defined(CFG_WITH_ARM_TRUSTED_FW) 68 .cpu_on = cpu_on_handler, 69 .cpu_off = pm_do_nothing, 70 .cpu_suspend = pm_do_nothing, 71 .cpu_resume = pm_do_nothing, 72 .system_off = pm_do_nothing, 73 .system_reset = pm_do_nothing, 74 #else 75 .cpu_on = pm_panic, 76 .cpu_off = pm_panic, 77 .cpu_suspend = pm_panic, 78 .cpu_resume = pm_panic, 79 .system_off = pm_panic, 80 .system_reset = pm_panic, 81 #endif 82 }; 83 84 const struct thread_handlers *generic_boot_get_handlers(void) 85 { 86 return &handlers; 87 } 88 89 void main_init_gic(void) 90 { 91 vaddr_t gicc_base, gicd_base; 92 93 gicc_base = (vaddr_t)phys_to_virt(GIC_BASE + GICC_OFFSET, 94 MEM_AREA_IO_SEC); 95 gicd_base = (vaddr_t)phys_to_virt(GIC_BASE + GICD_OFFSET, 96 MEM_AREA_IO_SEC); 97 /* On ARMv8, GIC configuration is initialized in ARM-TF */ 98 gic_init_base_addr(&gic_data, gicc_base, gicd_base); 99 } 100 101 static void main_fiq(void) 102 { 103 gic_it_handle(&gic_data); 104 } 105 106 void console_init(void) 107 { 108 cdns_uart_init(&console_data, CONSOLE_UART_BASE, 109 CONSOLE_UART_CLK_IN_HZ, CONSOLE_BAUDRATE); 110 register_serial_console(&console_data.chip); 111 } 112