mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-10-04 21:32:12 +00:00
27 lines
592 B
C
27 lines
592 B
C
|
/*
|
||
|
* Copyright (C) 2011-2015 Panasonic Corporation
|
||
|
* Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
|
||
|
*
|
||
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
*/
|
||
|
|
||
|
#include <asm/io.h>
|
||
|
#include <mach/sc-regs.h>
|
||
|
|
||
|
void early_clkrst_init(void)
|
||
|
{
|
||
|
u32 tmp;
|
||
|
|
||
|
/* deassert reset */
|
||
|
tmp = readl(SC_RSTCTRL);
|
||
|
tmp |= SC_RSTCTRL_NRST_UMC1 | SC_RSTCTRL_NRST_UMC0;
|
||
|
writel(tmp, SC_RSTCTRL);
|
||
|
readl(SC_RSTCTRL); /* dummy read */
|
||
|
|
||
|
/* privide clocks */
|
||
|
tmp = readl(SC_CLKCTRL);
|
||
|
tmp |= SC_CLKCTRL_CEN_UMC | SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI;
|
||
|
writel(tmp, SC_CLKCTRL);
|
||
|
readl(SC_CLKCTRL); /* dummy read */
|
||
|
}
|