diff options
Diffstat (limited to 'kernel/arch/arm/mach-shmobile/clock.c')
-rw-r--r-- | kernel/arch/arm/mach-shmobile/clock.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-shmobile/clock.c b/kernel/arch/arm/mach-shmobile/clock.c new file mode 100644 index 000000000..68c2d06d0 --- /dev/null +++ b/kernel/arch/arm/mach-shmobile/clock.c @@ -0,0 +1,47 @@ +/* + * SH-Mobile Clock Framework + * + * Copyright (C) 2010 Magnus Damm + * + * Used together with arch/arm/common/clkdev.c and drivers/sh/clk.c. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/export.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sh_clk.h> + +#include "clock.h" +#include "common.h" + +unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk) +{ + struct clk_ratio *p = clk->priv; + + return clk->parent->rate / p->div * p->mul; +}; + +struct sh_clk_ops shmobile_fixed_ratio_clk_ops = { + .recalc = shmobile_fixed_ratio_clk_recalc, +}; + +int __init shmobile_clk_init(void) +{ + /* Kick the child clocks.. */ + recalculate_root_clocks(); + + /* Enable the necessary init clocks */ + clk_enable_init_clocks(); + + return 0; +} |