u-boot/arch/arm/mach-mvebu/gpio.c

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/*
* (C) Copyright 2009
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
/*
* mvebu_config_gpio - GPIO configuration
*/
void mvebu_config_gpio(u32 gpp0_oe_val, u32 gpp1_oe_val,
u32 gpp0_oe, u32 gpp1_oe)
{
struct kwgpio_registers *gpio0reg =
(struct kwgpio_registers *)MVEBU_GPIO0_BASE;
struct kwgpio_registers *gpio1reg =
(struct kwgpio_registers *)MVEBU_GPIO1_BASE;
/* Init GPIOS to default values as per board requirement */
writel(gpp0_oe_val, &gpio0reg->dout);
writel(gpp1_oe_val, &gpio1reg->dout);
writel(gpp0_oe, &gpio0reg->oe);
writel(gpp1_oe, &gpio1reg->oe);
}