diff options
Diffstat (limited to 'arch/m68k/platform/coldfire/clk.c')
| -rw-r--r-- | arch/m68k/platform/coldfire/clk.c | 100 |
1 files changed, 38 insertions, 62 deletions
diff --git a/arch/m68k/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c index 9cd13b4ce42..fddfdccae63 100644 --- a/arch/m68k/platform/coldfire/clk.c +++ b/arch/m68k/platform/coldfire/clk.c @@ -19,37 +19,58 @@ #include <asm/mcfsim.h> #include <asm/mcfclk.h> -/***************************************************************************/ -#ifndef MCFPM_PPMCR0 -struct clk *clk_get(struct device *dev, const char *id) +static DEFINE_SPINLOCK(clk_lock); + +#ifdef MCFPM_PPMCR0 +/* + * For more advanced ColdFire parts that have clocks that can be enabled + * we supply enable/disable functions. These must properly define their + * clocks in their platform specific code. + */ +void __clk_init_enabled(struct clk *clk) { - return NULL; + clk->enabled = 1; + clk->clk_ops->enable(clk); } -EXPORT_SYMBOL(clk_get); -int clk_enable(struct clk *clk) +void __clk_init_disabled(struct clk *clk) { - return 0; + clk->enabled = 0; + clk->clk_ops->disable(clk); } -EXPORT_SYMBOL(clk_enable); -void clk_disable(struct clk *clk) +static void __clk_enable0(struct clk *clk) { + __raw_writeb(clk->slot, MCFPM_PPMCR0); } -EXPORT_SYMBOL(clk_disable); -void clk_put(struct clk *clk) +static void __clk_disable0(struct clk *clk) +{ + __raw_writeb(clk->slot, MCFPM_PPMSR0); +} + +struct clk_ops clk_ops0 = { + .enable = __clk_enable0, + .disable = __clk_disable0, +}; + +#ifdef MCFPM_PPMCR1 +static void __clk_enable1(struct clk *clk) { + __raw_writeb(clk->slot, MCFPM_PPMCR1); } -EXPORT_SYMBOL(clk_put); -unsigned long clk_get_rate(struct clk *clk) +static void __clk_disable1(struct clk *clk) { - return MCF_CLK; + __raw_writeb(clk->slot, MCFPM_PPMSR1); } -EXPORT_SYMBOL(clk_get_rate); -#else -static DEFINE_SPINLOCK(clk_lock); + +struct clk_ops clk_ops1 = { + .enable = __clk_enable1, + .disable = __clk_disable1, +}; +#endif /* MCFPM_PPMCR1 */ +#endif /* MCFPM_PPMCR0 */ struct clk *clk_get(struct device *dev, const char *id) { @@ -101,48 +122,3 @@ unsigned long clk_get_rate(struct clk *clk) EXPORT_SYMBOL(clk_get_rate); /***************************************************************************/ - -void __clk_init_enabled(struct clk *clk) -{ - clk->enabled = 1; - clk->clk_ops->enable(clk); -} - -void __clk_init_disabled(struct clk *clk) -{ - clk->enabled = 0; - clk->clk_ops->disable(clk); -} - -static void __clk_enable0(struct clk *clk) -{ - __raw_writeb(clk->slot, MCFPM_PPMCR0); -} - -static void __clk_disable0(struct clk *clk) -{ - __raw_writeb(clk->slot, MCFPM_PPMSR0); -} - -struct clk_ops clk_ops0 = { - .enable = __clk_enable0, - .disable = __clk_disable0, -}; - -#ifdef MCFPM_PPMCR1 -static void __clk_enable1(struct clk *clk) -{ - __raw_writeb(clk->slot, MCFPM_PPMCR1); -} - -static void __clk_disable1(struct clk *clk) -{ - __raw_writeb(clk->slot, MCFPM_PPMSR1); -} - -struct clk_ops clk_ops1 = { - .enable = __clk_enable1, - .disable = __clk_disable1, -}; -#endif /* MCFPM_PPMCR1 */ -#endif /* MCFPM_PPMCR0 */ |