u-boot/arch/arm/mach-uniphier/sbc/sbc-pxs2.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016-2017 Socionext Inc.
*/
#include <linux/io.h>
#include "../init.h"
#include "sbc-regs.h"
void uniphier_pxs2_sbc_init(void)
{
if (!uniphier_sbc_is_enabled())
return;
uniphier_sbc_init_savepin();
/* necessary for ROM boot ?? */
/* system bus output enable */
writel(0x17, PC0CTRL);
uniphier_pin_init("system-bus"); /* PXs3 */
}