1 /*
2  * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <linux/io.h>
8 
9 #include "../init.h"
10 #include "../sc-regs.h"
11 
12 void uniphier_pro5_clk_init(void)
13 {
14 	u32 tmp;
15 
16 	/* deassert reset */
17 	tmp = readl(SC_RSTCTRL);
18 #ifdef CONFIG_USB_XHCI_UNIPHIER
19 	tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO;
20 #endif
21 #ifdef CONFIG_NAND_DENALI
22 	tmp |= SC_RSTCTRL_NRST_NAND;
23 #endif
24 	writel(tmp, SC_RSTCTRL);
25 	readl(SC_RSTCTRL); /* dummy read */
26 
27 #ifdef CONFIG_USB_XHCI_UNIPHIER
28 	tmp = readl(SC_RSTCTRL2);
29 	tmp |= SC_RSTCTRL2_NRST_USB3B1;
30 	writel(tmp, SC_RSTCTRL2);
31 	readl(SC_RSTCTRL2); /* dummy read */
32 #endif
33 
34 	/* provide clocks */
35 	tmp = readl(SC_CLKCTRL);
36 #ifdef CONFIG_USB_XHCI_UNIPHIER
37 	tmp |= SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 |
38 		SC_CLKCTRL_CEN_GIO;
39 #endif
40 #ifdef CONFIG_NAND_DENALI
41 	tmp |= SC_CLKCTRL_CEN_NAND;
42 #endif
43 	writel(tmp, SC_CLKCTRL);
44 	readl(SC_CLKCTRL); /* dummy read */
45 }
46