| Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 2 | /* |
| Masahiro Yamada | b4eda20 | 2016-10-17 22:18:03 +0900 | [diff] [blame] | 3 | * Copyright (C) 2011-2015 Panasonic Corporation |
| 4 | * Copyright (C) 2015-2016 Socionext Inc. |
| 5 | * Author: Masahiro Yamada <yamada.masahiro@socionext.com> |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 6 | */ |
| 7 | |
| Masahiro Yamada | 663a23f | 2015-05-29 17:30:00 +0900 | [diff] [blame] | 8 | #include <linux/io.h> |
| Masahiro Yamada | efdf340 | 2016-01-09 01:51:13 +0900 | [diff] [blame] | 9 | |
| 10 | #include "../init.h" |
| 11 | #include "../sc-regs.h" |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 12 | |
| Masahiro Yamada | 9890569 | 2016-03-30 20:17:02 +0900 | [diff] [blame] | 13 | void uniphier_ld4_clk_init(void) |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 14 | { |
| 15 | u32 tmp; |
| 16 | |
| 17 | /* deassert reset */ |
| 18 | tmp = readl(SC_RSTCTRL); |
| Masahiro Yamada | c04368f | 2015-02-27 02:26:51 +0900 | [diff] [blame] | 19 | #ifdef CONFIG_NAND_DENALI |
| 20 | tmp |= SC_RSTCTRL_NRST_NAND; |
| 21 | #endif |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 22 | writel(tmp, SC_RSTCTRL); |
| 23 | readl(SC_RSTCTRL); /* dummy read */ |
| 24 | |
| Masahiro Yamada | 1c6a5e4 | 2016-03-30 20:17:42 +0900 | [diff] [blame] | 25 | /* provide clocks */ |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 26 | tmp = readl(SC_CLKCTRL); |
| Masahiro Yamada | c04368f | 2015-02-27 02:26:51 +0900 | [diff] [blame] | 27 | #ifdef CONFIG_NAND_DENALI |
| 28 | tmp |= SC_CLKCTRL_CEN_NAND; |
| 29 | #endif |
| Masahiro Yamada | bb2ff9d | 2014-10-03 19:21:06 +0900 | [diff] [blame] | 30 | writel(tmp, SC_CLKCTRL); |
| 31 | readl(SC_CLKCTRL); /* dummy read */ |
| 32 | } |