1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2011-2015 Panasonic Corporation 4 * Copyright (C) 2015-2016 Socionext Inc. 5 * Author: Masahiro Yamada <yamada.masahiro@socionext.com> 6 */ 7 8 #include <linux/io.h> 9 10 #include "../init.h" 11 #include "../sc-regs.h" 12 uniphier_pro4_clk_init(void)13void uniphier_pro4_clk_init(void) 14 { 15 u32 tmp; 16 17 /* deassert reset */ 18 tmp = readl(sc_base + SC_RSTCTRL); 19 #ifdef CONFIG_USB_DWC3_UNIPHIER 20 tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_USB3C0 | 21 SC_RSTCTRL_NRST_GIO; 22 #endif 23 #ifdef CONFIG_NAND_DENALI 24 tmp |= SC_RSTCTRL_NRST_NAND; 25 #endif 26 writel(tmp, sc_base + SC_RSTCTRL); 27 readl(sc_base + SC_RSTCTRL); /* dummy read */ 28 29 #ifdef CONFIG_USB_DWC3_UNIPHIER 30 tmp = readl(sc_base + SC_RSTCTRL2); 31 tmp |= SC_RSTCTRL2_NRST_USB3B1 | SC_RSTCTRL2_NRST_USB3C1; 32 writel(tmp, sc_base + SC_RSTCTRL2); 33 readl(sc_base + SC_RSTCTRL2); /* dummy read */ 34 #endif 35 36 /* provide clocks */ 37 tmp = readl(sc_base + SC_CLKCTRL); 38 #ifdef CONFIG_USB_DWC3_UNIPHIER 39 tmp |= SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 | 40 SC_CLKCTRL_CEN_GIO; 41 #endif 42 #ifdef CONFIG_NAND_DENALI 43 tmp |= SC_CLKCTRL_CEN_NAND; 44 #endif 45 writel(tmp, sc_base + SC_CLKCTRL); 46 readl(sc_base + SC_CLKCTRL); /* dummy read */ 47 } 48