blob: 50879f595a548275e7d4e97165c5e532c39de1bc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/*
* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include "../sc-regs.h"
#include "../sg-regs.h"
#include "debug-uart.h"
#define UNIPHIER_LD6B_UART_CLK 88888888
unsigned int uniphier_ld6b_debug_uart_init(void)
{
u32 tmp;
sg_set_iectrl(0);
sg_set_pinsel(135, 3, 8, 4); /* PORT10 -> TXD0 */
sg_set_pinsel(115, 0, 8, 4); /* TXD1 -> TXD1 */
sg_set_pinsel(113, 2, 8, 4); /* SBO0 -> TXD2 */
tmp = readl(SC_CLKCTRL);
tmp |= SC_CLKCTRL_CEN_PERI;
writel(tmp, SC_CLKCTRL);
return DIV_ROUND_CLOSEST(UNIPHIER_LD6B_UART_CLK, 16 * CONFIG_BAUDRATE);
}
|
