/* * emsk-uart-setup.c -- provide _setup_low_level() to initialize UART. * * Copyright (c) 2024 Synopsys Inc. * * The authors hereby grant permission to use, copy, modify, distribute, * and license this software and its documentation for any purpose, provided * that existing copyright notices are retained in all copies and that this * notice is included verbatim in any distributions. No written agreement, * license, or royalty fee is required for any of the authorized uses. * Modifications to this software may be copyrighted by their authors * and need not follow the licensing terms described here, provided that * the new terms are clearly indicated on the first page of each file where * they apply. * */ #include "uart-8250.h" /* Setup UART parameters. */ int _setup_low_level (void) { const uint32_t aux_dmp_per = 0x20a; void * const uart_base = (char *)__builtin_arc_lr(aux_dmp_per) + 0x00009000; const int uart_aux_mapped = 0; const uint32_t uart_clock = 50000000; const uint32_t uart_baud = 115200; _uart_8250_setup (uart_base, uart_aux_mapped, uart_clock, uart_baud); return 0; }