1 /* 2 * Copyright (c) 2018, 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 15 #include <plat_arm.h> 16 17 /******************************************************************************* 18 * Functions that set up the console 19 ******************************************************************************/ 20 #if MULTI_CONSOLE_API 21 static console_pl011_t arm_boot_console; 22 static console_pl011_t arm_runtime_console; 23 #endif 24 25 /* Initialize the console to provide early debug support */ 26 void __init arm_console_boot_init(void) 27 { 28 #if MULTI_CONSOLE_API 29 int rc = console_pl011_register(PLAT_ARM_BOOT_UART_BASE, 30 PLAT_ARM_BOOT_UART_CLK_IN_HZ, 31 ARM_CONSOLE_BAUDRATE, 32 &arm_boot_console); 33 if (rc == 0) { 34 /* 35 * The crash console doesn't use the multi console API, it uses 36 * the core console functions directly. It is safe to call panic 37 * and let it print debug information. 38 */ 39 panic(); 40 } 41 42 console_set_scope(&arm_boot_console.console, CONSOLE_FLAG_BOOT); 43 #else 44 (void)console_init(PLAT_ARM_BOOT_UART_BASE, 45 PLAT_ARM_BOOT_UART_CLK_IN_HZ, 46 ARM_CONSOLE_BAUDRATE); 47 #endif /* MULTI_CONSOLE_API */ 48 } 49 50 void arm_console_boot_end(void) 51 { 52 (void)console_flush(); 53 54 #if MULTI_CONSOLE_API 55 (void)console_unregister(&arm_boot_console.console); 56 #else 57 console_uninit(); 58 #endif /* MULTI_CONSOLE_API */ 59 } 60 61 /* Initialize the runtime console */ 62 void arm_console_runtime_init(void) 63 { 64 #if MULTI_CONSOLE_API 65 int rc = console_pl011_register(PLAT_ARM_BL31_RUN_UART_BASE, 66 PLAT_ARM_BL31_RUN_UART_CLK_IN_HZ, 67 ARM_CONSOLE_BAUDRATE, 68 &arm_runtime_console); 69 if (rc == 0) 70 panic(); 71 72 console_set_scope(&arm_runtime_console.console, CONSOLE_FLAG_RUNTIME); 73 #else 74 (void)console_init(PLAT_ARM_BL31_RUN_UART_BASE, 75 PLAT_ARM_BL31_RUN_UART_CLK_IN_HZ, 76 ARM_CONSOLE_BAUDRATE); 77 #endif /* MULTI_CONSOLE_API */ 78 } 79 80 void arm_console_runtime_end(void) 81 { 82 (void)console_flush(); 83 84 #if MULTI_CONSOLE_API 85 (void)console_unregister(&arm_runtime_console.console); 86 #else 87 console_uninit(); 88 #endif /* MULTI_CONSOLE_API */ 89 } 90