1 /* 2 * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <stddef.h> 8 #include <stdint.h> 9 10 #include <common/fdt_wrappers.h> 11 #include <drivers/arm/pl011.h> 12 #include <drivers/console.h> 13 14 #include <platform_def.h> 15 16 static console_t console; 17 18 void fpga_console_init(void) 19 { 20 const void *fdt = (void *)(uintptr_t)FPGA_PRELOADED_DTB_BASE; 21 uintptr_t base_addr = PLAT_FPGA_CRASH_UART_BASE; 22 int node; 23 24 /* 25 * Try to read the UART base address from the DT, by chasing the 26 * stdout-path property of the chosen node. 27 * If this does not work, use the crash console address as a fallback. 28 */ 29 node = fdt_get_stdout_node_offset(fdt); 30 if (node >= 0) { 31 fdt_get_reg_props_by_index(fdt, node, 0, &base_addr, NULL); 32 } 33 34 (void)console_pl011_register(base_addr, 0, 0, &console); 35 36 console_set_scope(&console, CONSOLE_FLAG_BOOT | 37 CONSOLE_FLAG_RUNTIME); 38 } 39