1 /* 2 * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <platform_def.h> 10 11 #include <common/debug.h> 12 #include <drivers/arm/pl011.h> 13 #include <drivers/console.h> 14 #include <plat/arm/common/plat_arm.h> 15 16 #pragma weak arm_console_runtime_init 17 #pragma weak arm_console_runtime_end 18 19 /******************************************************************************* 20 * Functions that set up the console 21 ******************************************************************************/ 22 static console_t arm_boot_console; 23 static console_t arm_runtime_console; 24 25 /* Initialize the console to provide early debug support */ 26 void __init arm_console_boot_init(void) 27 { 28 int rc = console_pl011_register(PLAT_ARM_BOOT_UART_BASE, 29 PLAT_ARM_BOOT_UART_CLK_IN_HZ, 30 ARM_CONSOLE_BAUDRATE, 31 &arm_boot_console); 32 if (rc == 0) { 33 /* 34 * The crash console doesn't use the multi console API, it uses 35 * the core console functions directly. It is safe to call panic 36 * and let it print debug information. 37 */ 38 panic(); 39 } 40 41 console_set_scope(&arm_boot_console, CONSOLE_FLAG_BOOT); 42 } 43 44 void arm_console_boot_end(void) 45 { 46 console_flush(); 47 (void)console_unregister(&arm_boot_console); 48 } 49 50 /* Initialize the runtime console */ 51 void arm_console_runtime_init(void) 52 { 53 int rc = console_pl011_register(PLAT_ARM_RUN_UART_BASE, 54 PLAT_ARM_RUN_UART_CLK_IN_HZ, 55 ARM_CONSOLE_BAUDRATE, 56 &arm_runtime_console); 57 if (rc == 0) 58 panic(); 59 60 console_set_scope(&arm_runtime_console, CONSOLE_FLAG_RUNTIME); 61 } 62 63 void arm_console_runtime_end(void) 64 { 65 console_flush(); 66 } 67