1ea65c980SMasahiro Yamada /* 270dda1b1SMasahiro Yamada * Copyright (C) 2011-2015 Panasonic Corporation 370dda1b1SMasahiro Yamada * Copyright (C) 2015-2016 Socionext Inc. 470dda1b1SMasahiro Yamada * Author: Masahiro Yamada <yamada.masahiro@socionext.com> 5ea65c980SMasahiro Yamada * 6ea65c980SMasahiro Yamada * SPDX-License-Identifier: GPL-2.0+ 7ea65c980SMasahiro Yamada */ 8ea65c980SMasahiro Yamada 9ea65c980SMasahiro Yamada #include <linux/io.h> 10ea65c980SMasahiro Yamada 11ea65c980SMasahiro Yamada #include "../init.h" 12ea65c980SMasahiro Yamada #include "../sc-regs.h" 13ea65c980SMasahiro Yamada uniphier_ld4_clk_init(void)145b660066SMasahiro Yamadavoid uniphier_ld4_clk_init(void) 15ea65c980SMasahiro Yamada { 16ea65c980SMasahiro Yamada u32 tmp; 17ea65c980SMasahiro Yamada 18ea65c980SMasahiro Yamada /* deassert reset */ 19ea65c980SMasahiro Yamada tmp = readl(SC_RSTCTRL); 20ea65c980SMasahiro Yamada #ifdef CONFIG_UNIPHIER_ETH 21ea65c980SMasahiro Yamada tmp |= SC_RSTCTRL_NRST_ETHER; 22ea65c980SMasahiro Yamada #endif 23ea65c980SMasahiro Yamada #ifdef CONFIG_NAND_DENALI 24ea65c980SMasahiro Yamada tmp |= SC_RSTCTRL_NRST_NAND; 25ea65c980SMasahiro Yamada #endif 26ea65c980SMasahiro Yamada writel(tmp, SC_RSTCTRL); 27ea65c980SMasahiro Yamada readl(SC_RSTCTRL); /* dummy read */ 28ea65c980SMasahiro Yamada 2967976306SMasahiro Yamada /* provide clocks */ 30ea65c980SMasahiro Yamada tmp = readl(SC_CLKCTRL); 31ea65c980SMasahiro Yamada #ifdef CONFIG_UNIPHIER_ETH 32ea65c980SMasahiro Yamada tmp |= SC_CLKCTRL_CEN_ETHER; 33ea65c980SMasahiro Yamada #endif 34*8850c5d5STom Rini #ifdef CONFIG_USB_EHCI_HCD 35ea65c980SMasahiro Yamada tmp |= SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_STDMAC; 36ea65c980SMasahiro Yamada #endif 37ea65c980SMasahiro Yamada #ifdef CONFIG_NAND_DENALI 38ea65c980SMasahiro Yamada tmp |= SC_CLKCTRL_CEN_NAND; 39ea65c980SMasahiro Yamada #endif 40ea65c980SMasahiro Yamada writel(tmp, SC_CLKCTRL); 41ea65c980SMasahiro Yamada readl(SC_CLKCTRL); /* dummy read */ 42ea65c980SMasahiro Yamada } 43