44 lines
861 B
C
44 lines
861 B
C
/*
|
|
* Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <linux/io.h>
|
|
|
|
#include "../init.h"
|
|
#include "../sc-regs.h"
|
|
|
|
void uniphier_ld4_clk_init(void)
|
|
{
|
|
u32 tmp;
|
|
|
|
/* deassert reset */
|
|
tmp = readl(SC_RSTCTRL);
|
|
#ifdef CONFIG_UNIPHIER_ETH
|
|
tmp |= SC_RSTCTRL_NRST_ETHER;
|
|
#endif
|
|
#ifdef CONFIG_USB_EHCI
|
|
tmp |= SC_RSTCTRL_NRST_STDMAC;
|
|
#endif
|
|
#ifdef CONFIG_NAND_DENALI
|
|
tmp |= SC_RSTCTRL_NRST_NAND;
|
|
#endif
|
|
writel(tmp, SC_RSTCTRL);
|
|
readl(SC_RSTCTRL); /* dummy read */
|
|
|
|
/* provide clocks */
|
|
tmp = readl(SC_CLKCTRL);
|
|
#ifdef CONFIG_UNIPHIER_ETH
|
|
tmp |= SC_CLKCTRL_CEN_ETHER;
|
|
#endif
|
|
#ifdef CONFIG_USB_EHCI
|
|
tmp |= SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_STDMAC;
|
|
#endif
|
|
#ifdef CONFIG_NAND_DENALI
|
|
tmp |= SC_CLKCTRL_CEN_NAND;
|
|
#endif
|
|
writel(tmp, SC_CLKCTRL);
|
|
readl(SC_CLKCTRL); /* dummy read */
|
|
}
|