| Masahiro Yamada | c04368f | 2015-02-27 02:26:51 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2011-2015 Panasonic Corporation |
| 3 | * Author: Masahiro Yamada <yamada.m@jp.panasonic.com> |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #include <asm/io.h> |
| 9 | #include <mach/sc-regs.h> |
| 10 | |
| 11 | void early_clkrst_init(void) |
| 12 | { |
| 13 | u32 tmp; |
| 14 | |
| 15 | /* deassert reset */ |
| 16 | tmp = readl(SC_RSTCTRL); |
| 17 | tmp |= SC_RSTCTRL_NRST_UMC1 | SC_RSTCTRL_NRST_UMC0; |
| 18 | writel(tmp, SC_RSTCTRL); |
| 19 | readl(SC_RSTCTRL); /* dummy read */ |
| 20 | |
| 21 | /* privide clocks */ |
| 22 | tmp = readl(SC_CLKCTRL); |
| 23 | tmp |= SC_CLKCTRL_CEN_UMC | SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI; |
| 24 | writel(tmp, SC_CLKCTRL); |
| 25 | readl(SC_CLKCTRL); /* dummy read */ |
| 26 | } |