u-boot/arch/arm/mach-uniphier/clk/clk-ld11.c
Masahiro Yamada 667dbcd01d ARM: uniphier: add PH1-LD11 SoC support
This is a low-cost ARMv8 SoC from Socionext Inc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-05-26 00:37:13 +09:00

28 lines
510 B
C

/*
* Copyright (C) 2016 Socionext Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <linux/bitops.h>
#include <linux/io.h>
#include "../init.h"
#include "../sg-regs.h"
void uniphier_ld11_clk_init(void)
{
if (readl(SG_PINMON0) & BIT(27)) {
/* if booted without stand-by MPU */
writel(1, SG_ETPHYPSHUT);
writel(1, SG_ETPHYCNT);
udelay(1); /* wait for regulator level 1.1V -> 2.5V */
writel(3, SG_ETPHYCNT);
writel(3, SG_ETPHYPSHUT);
writel(7, SG_ETPHYCNT);
}
}