1 /*
2  * Copyright (C) 2011-2015 Panasonic Corporation
3  * Copyright (C) 2015-2016 Socionext Inc.
4  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
7  */
8 
9 #include <linux/io.h>
10 
11 #include "../init.h"
12 #include "../sc-regs.h"
13 
14 void uniphier_pro4_clk_init(void)
15 {
16 	u32 tmp;
17 
18 	/* deassert reset */
19 	tmp = readl(SC_RSTCTRL);
20 #ifdef CONFIG_USB_XHCI_UNIPHIER
21 	tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_USB3C0 |
22 		SC_RSTCTRL_NRST_GIO;
23 #endif
24 #ifdef CONFIG_UNIPHIER_ETH
25 	tmp |= SC_RSTCTRL_NRST_ETHER;
26 #endif
27 #ifdef CONFIG_NAND_DENALI
28 	tmp |= SC_RSTCTRL_NRST_NAND;
29 #endif
30 	writel(tmp, SC_RSTCTRL);
31 	readl(SC_RSTCTRL); /* dummy read */
32 
33 #ifdef CONFIG_USB_XHCI_UNIPHIER
34 	tmp = readl(SC_RSTCTRL2);
35 	tmp |= SC_RSTCTRL2_NRST_USB3B1 | SC_RSTCTRL2_NRST_USB3C1;
36 	writel(tmp, SC_RSTCTRL2);
37 	readl(SC_RSTCTRL2); /* dummy read */
38 #endif
39 
40 	/* provide clocks */
41 	tmp = readl(SC_CLKCTRL);
42 #ifdef CONFIG_USB_XHCI_UNIPHIER
43 	tmp |= SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 |
44 		SC_CLKCTRL_CEN_GIO;
45 #endif
46 #ifdef CONFIG_UNIPHIER_ETH
47 	tmp |= SC_CLKCTRL_CEN_ETHER;
48 #endif
49 #ifdef CONFIG_USB_EHCI
50 	tmp |= SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_STDMAC;
51 #endif
52 #ifdef CONFIG_NAND_DENALI
53 	tmp |= SC_CLKCTRL_CEN_NAND;
54 #endif
55 	writel(tmp, SC_CLKCTRL);
56 	readl(SC_CLKCTRL); /* dummy read */
57 }
58