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/*
* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/io.h>
#include "../init.h"
#include "../sc64-regs.h"
int uniphier_ld20_early_clk_init(const struct uniphier_board_data *bd)
{
u32 tmp;
/* deassert reset */
tmp = readl(SC_RSTCTRL7);
tmp |= SC_RSTCTRL7_UMCSB | SC_RSTCTRL7_UMCA2 | SC_RSTCTRL7_UMCA1 |
SC_RSTCTRL7_UMCA0 | SC_RSTCTRL7_UMC32 | SC_RSTCTRL7_UMC31 |
SC_RSTCTRL7_UMC30;
writel(tmp, SC_RSTCTRL7);
/* provide clocks */
tmp = readl(SC_CLKCTRL4);
tmp |= SC_CLKCTRL4_PERI;
writel(tmp, SC_CLKCTRL4);
tmp = readl(SC_CLKCTRL7);
tmp |= SC_CLKCTRL7_UMCSB | SC_CLKCTRL7_UMC32 | SC_CLKCTRL7_UMC31 |
SC_CLKCTRL7_UMC30;
writel(tmp, SC_CLKCTRL7);
return 0;
}
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