1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2018-2022, ARM Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu #include <assert.h> 8*91f16700Schasinglulu 9*91f16700Schasinglulu #include <platform_def.h> 10*91f16700Schasinglulu 11*91f16700Schasinglulu #include <common/debug.h> 12*91f16700Schasinglulu #include <drivers/arm/pl011.h> 13*91f16700Schasinglulu #include <drivers/console.h> 14*91f16700Schasinglulu #include <plat/arm/common/plat_arm.h> 15*91f16700Schasinglulu 16*91f16700Schasinglulu #pragma weak arm_console_runtime_init 17*91f16700Schasinglulu #pragma weak arm_console_runtime_end 18*91f16700Schasinglulu 19*91f16700Schasinglulu /******************************************************************************* 20*91f16700Schasinglulu * Functions that set up the console 21*91f16700Schasinglulu ******************************************************************************/ 22*91f16700Schasinglulu static console_t arm_boot_console; 23*91f16700Schasinglulu static console_t arm_runtime_console; 24*91f16700Schasinglulu 25*91f16700Schasinglulu /* Initialize the console to provide early debug support */ 26*91f16700Schasinglulu void __init arm_console_boot_init(void) 27*91f16700Schasinglulu { 28*91f16700Schasinglulu /* If the console was initialized already, don't initialize again */ 29*91f16700Schasinglulu if (arm_boot_console.base == PLAT_ARM_BOOT_UART_BASE) { 30*91f16700Schasinglulu return; 31*91f16700Schasinglulu } 32*91f16700Schasinglulu 33*91f16700Schasinglulu int rc = console_pl011_register(PLAT_ARM_BOOT_UART_BASE, 34*91f16700Schasinglulu PLAT_ARM_BOOT_UART_CLK_IN_HZ, 35*91f16700Schasinglulu ARM_CONSOLE_BAUDRATE, 36*91f16700Schasinglulu &arm_boot_console); 37*91f16700Schasinglulu if (rc == 0) { 38*91f16700Schasinglulu /* 39*91f16700Schasinglulu * The crash console doesn't use the multi console API, it uses 40*91f16700Schasinglulu * the core console functions directly. It is safe to call panic 41*91f16700Schasinglulu * and let it print debug information. 42*91f16700Schasinglulu */ 43*91f16700Schasinglulu panic(); 44*91f16700Schasinglulu } 45*91f16700Schasinglulu 46*91f16700Schasinglulu console_set_scope(&arm_boot_console, CONSOLE_FLAG_BOOT); 47*91f16700Schasinglulu } 48*91f16700Schasinglulu 49*91f16700Schasinglulu void arm_console_boot_end(void) 50*91f16700Schasinglulu { 51*91f16700Schasinglulu console_flush(); 52*91f16700Schasinglulu (void)console_unregister(&arm_boot_console); 53*91f16700Schasinglulu } 54*91f16700Schasinglulu 55*91f16700Schasinglulu /* Initialize the runtime console */ 56*91f16700Schasinglulu void arm_console_runtime_init(void) 57*91f16700Schasinglulu { 58*91f16700Schasinglulu int rc = console_pl011_register(PLAT_ARM_RUN_UART_BASE, 59*91f16700Schasinglulu PLAT_ARM_RUN_UART_CLK_IN_HZ, 60*91f16700Schasinglulu ARM_CONSOLE_BAUDRATE, 61*91f16700Schasinglulu &arm_runtime_console); 62*91f16700Schasinglulu if (rc == 0) 63*91f16700Schasinglulu panic(); 64*91f16700Schasinglulu 65*91f16700Schasinglulu console_set_scope(&arm_runtime_console, CONSOLE_FLAG_RUNTIME); 66*91f16700Schasinglulu } 67*91f16700Schasinglulu 68*91f16700Schasinglulu void arm_console_runtime_end(void) 69*91f16700Schasinglulu { 70*91f16700Schasinglulu console_flush(); 71*91f16700Schasinglulu } 72