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| /*
| * 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_ld4_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 */
| }
|
|
