mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-04 02:20:25 +00:00
32 lines
620 B
C
32 lines
620 B
C
|
/*
|
||
|
|
* Copyright (C) 2011-2014 Panasonic Corporation
|
||
|
|
* Copyright (C) 2015-2017 Socionext Inc.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <spl.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
|
||
|
|
#include "../init.h"
|
||
|
|
#include "../sc-regs.h"
|
||
|
|
|
||
|
|
void uniphier_sld3_early_clk_init(void)
|
||
|
|
{
|
||
|
|
u32 tmp;
|
||
|
|
|
||
|
|
/* deassert reset */
|
||
|
|
if (spl_boot_device() != BOOT_DEVICE_NAND) {
|
||
|
|
tmp = readl(SC_RSTCTRL);
|
||
|
|
tmp &= ~SC_RSTCTRL_NRST_NAND;
|
||
|
|
writel(tmp, SC_RSTCTRL);
|
||
|
|
};
|
||
|
|
|
||
|
|
/* provide clocks */
|
||
|
|
tmp = readl(SC_CLKCTRL);
|
||
|
|
tmp |= SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI;
|
||
|
|
writel(tmp, SC_CLKCTRL);
|
||
|
|
readl(SC_CLKCTRL); /* dummy read */
|
||
|
|
}
|