diff options
| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2015-10-14 10:46:36 +0200 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2015-10-14 10:46:36 +0200 |
| commit | 13a3972585af60ec367d209cedbd3601e0c77467 (patch) | |
| tree | 4b3312669b3e501f6bc10b39d8c7bbf516f07aac /arch/arm/mach-uniphier/clk/clk-ph1-ld4.c | |
| parent | 208bd51396fb606dbdcf45b064e6b372d7dd3e81 (diff) | |
| parent | 297faccca2235e359012118495b9b73451d54bb9 (diff) | |
Merge remote-tracking branch 'u-boot/master'
Diffstat (limited to 'arch/arm/mach-uniphier/clk/clk-ph1-ld4.c')
| -rw-r--r-- | arch/arm/mach-uniphier/clk/clk-ph1-ld4.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/clk-ph1-ld4.c b/arch/arm/mach-uniphier/clk/clk-ph1-ld4.c new file mode 100644 index 0000000000..8b95fbb008 --- /dev/null +++ b/arch/arm/mach-uniphier/clk/clk-ph1-ld4.c @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <linux/io.h> +#include <mach/init.h> +#include <mach/sc-regs.h> + +void ph1_ld4_clk_init(void) +{ + u32 tmp; + + /* deassert reset */ + tmp = readl(SC_RSTCTRL); +#ifdef CONFIG_UNIPHIER_ETH + tmp |= SC_RSTCTRL_NRST_ETHER; +#endif +#ifdef CONFIG_USB_EHCI_UNIPHIER + tmp |= SC_RSTCTRL_NRST_STDMAC; +#endif +#ifdef CONFIG_NAND_DENALI + tmp |= SC_RSTCTRL_NRST_NAND; +#endif + writel(tmp, SC_RSTCTRL); + readl(SC_RSTCTRL); /* dummy read */ + + /* privide clocks */ + tmp = readl(SC_CLKCTRL); +#ifdef CONFIG_UNIPHIER_ETH + tmp |= SC_CLKCTRL_CEN_ETHER; +#endif +#ifdef CONFIG_USB_EHCI_UNIPHIER + tmp |= SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_STDMAC; +#endif +#ifdef CONFIG_NAND_DENALI + tmp |= SC_CLKCTRL_CEN_NAND; +#endif + writel(tmp, SC_CLKCTRL); + readl(SC_CLKCTRL); /* dummy read */ +} |