arm64: add better and more generic spin-table support
[oweals/u-boot.git] / arch / arm / mach-uniphier / debug-uart / debug-uart-sld8.c
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_SLD8_UART_CLK          80000000
14
15 unsigned int uniphier_sld8_debug_uart_init(void)
16 {
17         sg_set_iectrl(0);
18         sg_set_pinsel(70, 3, 8, 4);     /* HSDOUT6 -> TXD0 */
19
20         return DIV_ROUND_CLOSEST(UNIPHIER_SLD8_UART_CLK, 16 * CONFIG_BAUDRATE);
21 }