1 /*
2  * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <config.h>
8 #include <linux/kernel.h>
9 
10 #include "../sg-regs.h"
11 #include "debug-uart.h"
12 
13 #define UNIPHIER_LD4_UART_CLK		36864000
14 
15 unsigned int uniphier_ld4_debug_uart_init(void)
16 {
17 	sg_set_iectrl(0);
18 	sg_set_pinsel(88, 1, 8, 4);	/* HSDOUT6 -> TXD0 */
19 
20 	return DIV_ROUND_CLOSEST(UNIPHIER_LD4_UART_CLK, 16 * CONFIG_BAUDRATE);
21 }
22