| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 1 | /* |
| Masahiro Yamada | 663a23f | 2015-05-29 17:30:00 +0900 | [diff] [blame] | 2 | * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com> |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| Masahiro Yamada | 663a23f | 2015-05-29 17:30:00 +0900 | [diff] [blame] | 7 | #include <linux/io.h> |
| Masahiro Yamada | 95387e2 | 2015-02-27 02:26:44 +0900 | [diff] [blame] | 8 | #include <mach/sc-regs.h> |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 9 | |
| 10 | void clkrst_init(void) |
| 11 | { |
| 12 | u32 tmp; |
| 13 | |
| 14 | /* deassert reset */ |
| 15 | tmp = readl(SC_RSTCTRL); |
| Masahiro Yamada | 046d8fd | 2015-02-27 02:26:58 +0900 | [diff] [blame] | 16 | #ifdef CONFIG_USB_XHCI_UNIPHIER |
| 17 | tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_USB3C0 | |
| 18 | SC_RSTCTRL_NRST_GIO; |
| 19 | #endif |
| Masahiro Yamada | c04368f | 2015-02-27 02:26:51 +0900 | [diff] [blame] | 20 | #ifdef CONFIG_UNIPHIER_ETH |
| 21 | tmp |= SC_RSTCTRL_NRST_ETHER; |
| 22 | #endif |
| Masahiro Yamada | 36563e6 | 2015-02-27 02:26:53 +0900 | [diff] [blame] | 23 | #ifdef CONFIG_USB_EHCI_UNIPHIER |
| 24 | tmp |= SC_RSTCTRL_NRST_STDMAC; |
| 25 | #endif |
| Masahiro Yamada | c04368f | 2015-02-27 02:26:51 +0900 | [diff] [blame] | 26 | #ifdef CONFIG_NAND_DENALI |
| 27 | tmp |= SC_RSTCTRL_NRST_NAND; |
| 28 | #endif |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 29 | writel(tmp, SC_RSTCTRL); |
| 30 | readl(SC_RSTCTRL); /* dummy read */ |
| 31 | |
| Masahiro Yamada | 046d8fd | 2015-02-27 02:26:58 +0900 | [diff] [blame] | 32 | #ifdef CONFIG_USB_XHCI_UNIPHIER |
| 33 | tmp = readl(SC_RSTCTRL2); |
| 34 | tmp |= SC_RSTCTRL2_NRST_USB3B1 | SC_RSTCTRL2_NRST_USB3C1; |
| 35 | writel(tmp, SC_RSTCTRL2); |
| 36 | readl(SC_RSTCTRL2); /* dummy read */ |
| 37 | #endif |
| 38 | |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 39 | /* privide clocks */ |
| 40 | tmp = readl(SC_CLKCTRL); |
| Masahiro Yamada | 046d8fd | 2015-02-27 02:26:58 +0900 | [diff] [blame] | 41 | #ifdef CONFIG_USB_XHCI_UNIPHIER |
| 42 | tmp |= SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 | |
| 43 | SC_CLKCTRL_CEN_GIO; |
| 44 | #endif |
| Masahiro Yamada | c04368f | 2015-02-27 02:26:51 +0900 | [diff] [blame] | 45 | #ifdef CONFIG_UNIPHIER_ETH |
| 46 | tmp |= SC_CLKCTRL_CEN_ETHER; |
| 47 | #endif |
| 48 | #ifdef CONFIG_USB_EHCI_UNIPHIER |
| Masahiro Yamada | 36563e6 | 2015-02-27 02:26:53 +0900 | [diff] [blame] | 49 | tmp |= SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_STDMAC; |
| Masahiro Yamada | c04368f | 2015-02-27 02:26:51 +0900 | [diff] [blame] | 50 | #endif |
| 51 | #ifdef CONFIG_NAND_DENALI |
| 52 | tmp |= SC_CLKCTRL_CEN_NAND; |
| 53 | #endif |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 54 | writel(tmp, SC_CLKCTRL); |
| 55 | readl(SC_CLKCTRL); /* dummy read */ |
| 56 | } |