diff options
Diffstat (limited to 'arch/arm/plat-s5p')
| -rw-r--r-- | arch/arm/plat-s5p/clock.c | 20 | ||||
| -rw-r--r-- | arch/arm/plat-s5p/include/plat/s5p-clock.h | 4 |
2 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/plat-s5p/clock.c b/arch/arm/plat-s5p/clock.c index 81880096269..8d081d968c5 100644 --- a/arch/arm/plat-s5p/clock.c +++ b/arch/arm/plat-s5p/clock.c @@ -21,6 +21,8 @@ #include <linux/io.h> #include <asm/div64.h> +#include <mach/regs-clock.h> + #include <plat/clock.h> #include <plat/clock-clksrc.h> #include <plat/s5p-clock.h> @@ -148,6 +150,24 @@ int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable) return 0; } +int s5p_epll_enable(struct clk *clk, int enable) +{ + unsigned int ctrlbit = clk->ctrlbit; + unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit; + + if (enable) + __raw_writel(epll_con | ctrlbit, S5P_EPLL_CON); + else + __raw_writel(epll_con, S5P_EPLL_CON); + + return 0; +} + +unsigned long s5p_epll_get_rate(struct clk *clk) +{ + return clk->rate; +} + static struct clk *s5p_clks[] __initdata = { &clk_ext_xtal_mux, &clk_48m, diff --git a/arch/arm/plat-s5p/include/plat/s5p-clock.h b/arch/arm/plat-s5p/include/plat/s5p-clock.h index 17036c89840..2b6dcff8ab2 100644 --- a/arch/arm/plat-s5p/include/plat/s5p-clock.h +++ b/arch/arm/plat-s5p/include/plat/s5p-clock.h @@ -43,4 +43,8 @@ extern struct clksrc_sources clk_src_dpll; extern int s5p_gatectrl(void __iomem *reg, struct clk *clk, int enable); +/* Common EPLL operations for S5P platform */ +extern int s5p_epll_enable(struct clk *clk, int enable); +extern unsigned long s5p_epll_get_rate(struct clk *clk); + #endif /* __ASM_PLAT_S5P_CLOCK_H */ |