Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 4 | */ |
| 5 | |
Masahiro Yamada | 85ab607 | 2016-07-22 20:20:11 +0900 | [diff] [blame] | 6 | #include <linux/bitops.h> |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 7 | #include <linux/io.h> |
Masahiro Yamada | efdf340 | 2016-01-09 01:51:13 +0900 | [diff] [blame] | 8 | |
| 9 | #include "../init.h" |
| 10 | #include "../sc-regs.h" |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 11 | |
Masahiro Yamada | 9890569 | 2016-03-30 20:17:02 +0900 | [diff] [blame] | 12 | void uniphier_pxs2_clk_init(void) |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 13 | { |
Masahiro Yamada | 51b9bc9 | 2020-01-30 00:55:57 +0900 | [diff] [blame] | 14 | #ifdef CONFIG_USB_DWC3_UNIPHIER |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 15 | u32 tmp; |
| 16 | |
| 17 | /* deassert reset */ |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 18 | tmp = readl(sc_base + SC_RSTCTRL); |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 19 | tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO; |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 20 | writel(tmp, sc_base + SC_RSTCTRL); |
| 21 | readl(sc_base + SC_RSTCTRL); /* dummy read */ |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 22 | |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 23 | tmp = readl(sc_base + SC_RSTCTRL2); |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 24 | tmp |= SC_RSTCTRL2_NRST_USB3B1; |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 25 | writel(tmp, sc_base + SC_RSTCTRL2); |
| 26 | readl(sc_base + SC_RSTCTRL2); /* dummy read */ |
Masahiro Yamada | 85ab607 | 2016-07-22 20:20:11 +0900 | [diff] [blame] | 27 | |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 28 | tmp = readl(sc_base + SC_RSTCTRL6); |
Masahiro Yamada | 85ab607 | 2016-07-22 20:20:11 +0900 | [diff] [blame] | 29 | tmp |= 0x37; |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 30 | writel(tmp, sc_base + SC_RSTCTRL6); |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 31 | |
Masahiro Yamada | 1c6a5e4 | 2016-03-30 20:17:42 +0900 | [diff] [blame] | 32 | /* provide clocks */ |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 33 | tmp = readl(sc_base + SC_CLKCTRL); |
Masahiro Yamada | 85ab607 | 2016-07-22 20:20:11 +0900 | [diff] [blame] | 34 | tmp |= BIT(20) | BIT(19) | SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 | |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 35 | SC_CLKCTRL_CEN_GIO; |
Masahiro Yamada | c84024c | 2019-07-10 20:07:41 +0900 | [diff] [blame] | 36 | writel(tmp, sc_base + SC_CLKCTRL); |
| 37 | readl(sc_base + SC_CLKCTRL); /* dummy read */ |
Masahiro Yamada | 51b9bc9 | 2020-01-30 00:55:57 +0900 | [diff] [blame] | 38 | #endif |
Masahiro Yamada | 1fe65d3 | 2015-09-22 00:27:41 +0900 | [diff] [blame] | 39 | } |