u-boot/arch/arm/mach-uniphier/ph1-pro4/early_pinctrl.c

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/*
* Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/io.h>
#include <mach/sg-regs.h>
void early_pin_init(void)
{
/* Comment format: PAD Name -> Function Name */
#ifdef CONFIG_UNIPHIER_SERIAL
sg_set_pinsel(127, 0); /* RXD0 -> RXD0 */
sg_set_pinsel(128, 0); /* TXD0 -> TXD0 */
sg_set_pinsel(129, 0); /* RXD1 -> RXD1 */
sg_set_pinsel(130, 0); /* TXD1 -> TXD1 */
sg_set_pinsel(131, 0); /* RXD2 -> RXD2 */
sg_set_pinsel(132, 0); /* TXD2 -> TXD2 */
sg_set_pinsel(88, 2); /* CH6CLK -> RXD3 */
sg_set_pinsel(89, 2); /* CH6VAL -> TXD3 */
#endif
writel(1, SG_LOADPINCTRL);
}