| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2011-2015 Panasonic Corporation |
| * Copyright (C) 2015-2016 Socionext Inc. |
| * Author: Masahiro Yamada <yamada.masahiro@socionext.com> |
| */ |
| |
| #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_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_USB_EHCI_HCD |
| 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 */ |
| } |