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| /*
| * 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_PRO4_UART_CLK 73728000
|
| unsigned int uniphier_pro4_debug_uart_init(void)
| {
| u32 tmp;
|
| sg_set_iectrl(0);
| sg_set_pinsel(128, 0, 4, 8); /* TXD0 -> TXD0 */
|
| writel(1, SG_LOADPINCTRL);
|
| tmp = readl(SC_CLKCTRL);
| tmp |= SC_CLKCTRL_CEN_PERI;
| writel(tmp, SC_CLKCTRL);
|
| return DIV_ROUND_CLOSEST(UNIPHIER_PRO4_UART_CLK, 16 * CONFIG_BAUDRATE);
| }
|
|
