1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com> 4 */ 5 6 #include <config.h> 7 #include <linux/kernel.h> 8 9 #include "../sg-regs.h" 10 #include "debug-uart.h" 11 12 #define UNIPHIER_LD4_UART_CLK 36864000 13 14 unsigned int uniphier_ld4_debug_uart_init(void) 15 { 16 sg_set_iectrl(0); 17 sg_set_pinsel(88, 1, 8, 4); /* HSDOUT6 -> TXD0 */ 18 19 return DIV_ROUND_CLOSEST(UNIPHIER_LD4_UART_CLK, 16 * CONFIG_BAUDRATE); 20 } 21