1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+ 2ea65c980SMasahiro Yamada /* 370dda1b1SMasahiro Yamada * Copyright (C) 2011-2015 Panasonic Corporation 470dda1b1SMasahiro Yamada * Copyright (C) 2015-2016 Socionext Inc. 570dda1b1SMasahiro Yamada * Author: Masahiro Yamada <yamada.masahiro@socionext.com> 6ea65c980SMasahiro Yamada */ 7ea65c980SMasahiro Yamada 8ea65c980SMasahiro Yamada #include <linux/io.h> 9ea65c980SMasahiro Yamada 10ea65c980SMasahiro Yamada #include "../init.h" 11ea65c980SMasahiro Yamada #include "../sc-regs.h" 12ea65c980SMasahiro Yamada uniphier_ld4_clk_init(void)135b660066SMasahiro Yamadavoid uniphier_ld4_clk_init(void) 14ea65c980SMasahiro Yamada { 15ea65c980SMasahiro Yamada u32 tmp; 16ea65c980SMasahiro Yamada 17ea65c980SMasahiro Yamada /* deassert reset */ 18ea65c980SMasahiro Yamada tmp = readl(SC_RSTCTRL); 19ea65c980SMasahiro Yamada #ifdef CONFIG_NAND_DENALI 20ea65c980SMasahiro Yamada tmp |= SC_RSTCTRL_NRST_NAND; 21ea65c980SMasahiro Yamada #endif 22ea65c980SMasahiro Yamada writel(tmp, SC_RSTCTRL); 23ea65c980SMasahiro Yamada readl(SC_RSTCTRL); /* dummy read */ 24ea65c980SMasahiro Yamada 2567976306SMasahiro Yamada /* provide clocks */ 26ea65c980SMasahiro Yamada tmp = readl(SC_CLKCTRL); 27ea65c980SMasahiro Yamada #ifdef CONFIG_NAND_DENALI 28ea65c980SMasahiro Yamada tmp |= SC_CLKCTRL_CEN_NAND; 29ea65c980SMasahiro Yamada #endif 30ea65c980SMasahiro Yamada writel(tmp, SC_CLKCTRL); 31ea65c980SMasahiro Yamada readl(SC_CLKCTRL); /* dummy read */ 32ea65c980SMasahiro Yamada } 33