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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 "../bcu/bcu-regs.h"
- #include "../sc-regs.h"
- #include "../sg-regs.h"
- #include "debug-uart.h"
- #define UNIPHIER_SLD3_UART_CLK 36864000
- unsigned int uniphier_sld3_debug_uart_init(void)
- {
- u32 tmp;
- sg_set_pinsel(64, 1, 4, 4); /* TXD0 -> TXD0 */
- writel(0x24440000, BCSCR5);
- tmp = readl(SC_CLKCTRL);
- tmp |= SC_CLKCTRL_CEN_PERI;
- writel(tmp, SC_CLKCTRL);
- return DIV_ROUND_CLOSEST(UNIPHIER_SLD3_UART_CLK, 16 * CONFIG_BAUDRATE);
- }
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