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/*
* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/bitops.h>
#include <linux/io.h>
#include "../init.h"
#include "../sc-regs.h"
void uniphier_pxs2_clk_init(void)
{
u32 tmp;
/* deassert reset */
tmp = readl(SC_RSTCTRL);
#ifdef CONFIG_USB_DWC3_UNIPHIER
tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO;
#endif
#ifdef CONFIG_NAND_DENALI
tmp |= SC_RSTCTRL_NRST_NAND;
#endif
writel(tmp, SC_RSTCTRL);
readl(SC_RSTCTRL); /* dummy read */
#ifdef CONFIG_USB_DWC3_UNIPHIER
tmp = readl(SC_RSTCTRL2);
tmp |= SC_RSTCTRL2_NRST_USB3B1;
writel(tmp, SC_RSTCTRL2);
readl(SC_RSTCTRL2); /* dummy read */
tmp = readl(SC_RSTCTRL6);
tmp |= 0x37;
writel(tmp, SC_RSTCTRL6);
#endif
/* provide clocks */
tmp = readl(SC_CLKCTRL);
#ifdef CONFIG_USB_DWC3_UNIPHIER
tmp |= BIT(20) | BIT(19) | SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 |
SC_CLKCTRL_CEN_GIO;
#endif
#ifdef CONFIG_NAND_DENALI
tmp |= SC_CLKCTRL_CEN_NAND;
#endif
writel(tmp, SC_CLKCTRL);
readl(SC_CLKCTRL); /* dummy read */
}
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