1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro (at) socionext.com> 4 */ 5 6 #include <linux/io.h> 7 8 #include "../init.h" 9 #include "../sc-regs.h" 10 11 void uniphier_pro5_clk_init(void) 12 { 13 u32 tmp; 14 15 /* deassert reset */ 16 tmp = readl(SC_RSTCTRL); 17 #ifdef CONFIG_USB_DWC3_UNIPHIER 18 tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO; 19 #endif 20 #ifdef CONFIG_NAND_DENALI 21 tmp |= SC_RSTCTRL_NRST_NAND; 22 #endif 23 writel(tmp, SC_RSTCTRL); 24 readl(SC_RSTCTRL); /* dummy read */ 25 26 #ifdef CONFIG_USB_DWC3_UNIPHIER 27 tmp = readl(SC_RSTCTRL2); 28 tmp |= SC_RSTCTRL2_NRST_USB3B1; 29 writel(tmp, SC_RSTCTRL2); 30 readl(SC_RSTCTRL2); /* dummy read */ 31 #endif 32 33 /* provide clocks */ 34 tmp = readl(SC_CLKCTRL); 35 #ifdef CONFIG_USB_DWC3_UNIPHIER 36 tmp |= SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 | 37 SC_CLKCTRL_CEN_GIO; 38 #endif 39 #ifdef CONFIG_NAND_DENALI 40 tmp |= SC_CLKCTRL_CEN_NAND; 41 #endif 42 writel(tmp, SC_CLKCTRL); 43 readl(SC_CLKCTRL); /* dummy read */ 44 } 45
