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author | Minkyu Kang <mk7.kang@samsung.com> | 2014-10-07 10:14:03 (GMT) |
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committer | Minkyu Kang <mk7.kang@samsung.com> | 2014-10-07 10:14:03 (GMT) |
commit | 3cc83f9d08a80fddf4c1e8e766eff8273f30814c (patch) | |
tree | 831246a1b77d26d0296a84c90684e0fee0368737 /arch/arm/cpu/armv7/uniphier/ph1-ld4/clkrst_init.c | |
parent | 64f41212d880f3d00c6994d973aadeec5bda1b65 (diff) | |
parent | 6dd0e7c00bfa5ce861a72b8e4a3ef9e787306125 (diff) | |
download | u-boot-3cc83f9d08a80fddf4c1e8e766eff8273f30814c.tar.xz |
Merge branch 'uboot'
Diffstat (limited to 'arch/arm/cpu/armv7/uniphier/ph1-ld4/clkrst_init.c')
-rw-r--r-- | arch/arm/cpu/armv7/uniphier/ph1-ld4/clkrst_init.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/uniphier/ph1-ld4/clkrst_init.c b/arch/arm/cpu/armv7/uniphier/ph1-ld4/clkrst_init.c new file mode 100644 index 0000000..18965a9 --- /dev/null +++ b/arch/arm/cpu/armv7/uniphier/ph1-ld4/clkrst_init.c @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2011-2014 Panasonic Corporation + * Author: Masahiro Yamada <yamada.m@jp.panasonic.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/sc-regs.h> + +void clkrst_init(void) +{ + u32 tmp; + + /* deassert reset */ + tmp = readl(SC_RSTCTRL); + tmp |= SC_RSTCTRL_NRST_ETHER | SC_RSTCTRL_NRST_UMC1 + | SC_RSTCTRL_NRST_UMC0 | SC_RSTCTRL_NRST_NAND; + writel(tmp, SC_RSTCTRL); + readl(SC_RSTCTRL); /* dummy read */ + + /* privide clocks */ + tmp = readl(SC_CLKCTRL); + tmp |= SC_CLKCTRL_CLK_ETHER | SC_CLKCTRL_CLK_MIO | SC_CLKCTRL_CLK_UMC + | SC_CLKCTRL_CLK_NAND | SC_CLKCTRL_CLK_SBC | SC_CLKCTRL_CLK_PERI; + writel(tmp, SC_CLKCTRL); + readl(SC_CLKCTRL); /* dummy read */ +} |