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Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Masahiro Yamada52f0c512016-03-18 16:41:52 +09002/*
3 * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada52f0c512016-03-18 16:41:52 +09004 */
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
14unsigned 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}