1 /*
2 * Copyright (c) 2018-2022, 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 */
arm_console_boot_init(void)26 void __init arm_console_boot_init(void)
27 {
28 /* If the console was initialized already, don't initialize again */
29 if (arm_boot_console.base == PLAT_ARM_BOOT_UART_BASE) {
30 return;
31 }
32
33 int rc = console_pl011_register(PLAT_ARM_BOOT_UART_BASE,
34 PLAT_ARM_BOOT_UART_CLK_IN_HZ,
35 ARM_CONSOLE_BAUDRATE,
36 &arm_boot_console);
37 if (rc == 0) {
38 /*
39 * The crash console doesn't use the multi console API, it uses
40 * the core console functions directly. It is safe to call panic
41 * and let it print debug information.
42 */
43 panic();
44 }
45
46 console_set_scope(&arm_boot_console, CONSOLE_FLAG_BOOT);
47 }
48
arm_console_boot_end(void)49 void arm_console_boot_end(void)
50 {
51 console_flush();
52 (void)console_unregister(&arm_boot_console);
53 }
54
55 /* Initialize the runtime console */
arm_console_runtime_init(void)56 void arm_console_runtime_init(void)
57 {
58 int rc = console_pl011_register(PLAT_ARM_RUN_UART_BASE,
59 PLAT_ARM_RUN_UART_CLK_IN_HZ,
60 ARM_CONSOLE_BAUDRATE,
61 &arm_runtime_console);
62 if (rc == 0)
63 panic();
64
65 console_set_scope(&arm_runtime_console, CONSOLE_FLAG_RUNTIME);
66 }
67
arm_console_runtime_end(void)68 void arm_console_runtime_end(void)
69 {
70 console_flush();
71 }
72