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https://github.com/AsahiLinux/u-boot
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76466bd7be
At the moment, the clk driver is not clever enough to automatically enable parent clocks like Linux. Enable the STDMAC clock explicitly if USB is enabled. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
39 lines
748 B
C
39 lines
748 B
C
/*
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* Copyright (C) 2016 Socionext Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <linux/bitops.h>
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#include <linux/io.h>
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#include "../init.h"
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#include "../sc64-regs.h"
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#include "../sg-regs.h"
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void uniphier_ld11_clk_init(void)
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{
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if (readl(SG_PINMON0) & BIT(27)) {
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/* if booted without stand-by MPU */
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writel(1, SG_ETPHYPSHUT);
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writel(1, SG_ETPHYCNT);
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udelay(1); /* wait for regulator level 1.1V -> 2.5V */
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writel(3, SG_ETPHYCNT);
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writel(3, SG_ETPHYPSHUT);
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writel(7, SG_ETPHYCNT);
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}
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#ifdef CONFIG_USB_EHCI
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{
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/* FIXME: the current clk driver can not handle parents */
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u32 tmp;
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tmp = readl(SC_CLKCTRL4);
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tmp |= SC_CLKCTRL4_MIO | SC_CLKCTRL4_STDMAC;
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writel(tmp, SC_CLKCTRL4);
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}
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#endif
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}
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