1 /* 2 * Copyright (c) 2018-2019, 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 /******************************************************************************* 17 * Functions that set up the console 18 ******************************************************************************/ 19 #if MULTI_CONSOLE_API 20 static console_pl011_t arm_boot_console; 21 static console_pl011_t arm_runtime_console; 22 #endif 23 24 /* Initialize the console to provide early debug support */ 25 void __init arm_console_boot_init(void) 26 { 27 #if MULTI_CONSOLE_API 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, CONSOLE_FLAG_BOOT); 42 #else 43 (void)console_init(PLAT_ARM_BOOT_UART_BASE, 44 PLAT_ARM_BOOT_UART_CLK_IN_HZ, 45 ARM_CONSOLE_BAUDRATE); 46 #endif /* MULTI_CONSOLE_API */ 47 } 48 49 void arm_console_boot_end(void) 50 { 51 (void)console_flush(); 52 53 #if MULTI_CONSOLE_API 54 (void)console_unregister(&arm_boot_console.console); 55 #else 56 console_uninit(); 57 #endif /* MULTI_CONSOLE_API */ 58 } 59 60 /* Initialize the runtime console */ 61 void arm_console_runtime_init(void) 62 { 63 #if MULTI_CONSOLE_API 64 int rc = console_pl011_register(PLAT_ARM_RUN_UART_BASE, 65 PLAT_ARM_RUN_UART_CLK_IN_HZ, 66 ARM_CONSOLE_BAUDRATE, 67 &arm_runtime_console); 68 if (rc == 0) 69 panic(); 70 71 console_set_scope(&arm_runtime_console.console, CONSOLE_FLAG_RUNTIME); 72 #else 73 (void)console_init(PLAT_ARM_RUN_UART_BASE, 74 PLAT_ARM_RUN_UART_CLK_IN_HZ, 75 ARM_CONSOLE_BAUDRATE); 76 #endif /* MULTI_CONSOLE_API */ 77 } 78 79 void arm_console_runtime_end(void) 80 { 81 (void)console_flush(); 82 83 #if !MULTI_CONSOLE_API 84 console_uninit(); 85 #endif /* !MULTI_CONSOLE_API */ 86 } 87