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author | Greg Ungerer <gerg@uclinux.org> | 2014-08-19 11:39:09 +1000 |
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committer | Greg Ungerer <gerg@uclinux.org> | 2014-09-29 09:18:34 +1000 |
commit | f86b9e03837beafb4b48d53a76ee4b88559226de (patch) | |
tree | 53a673c3719aec83c6c55c265ed6e6433d6550ca /arch/m68k/platform/coldfire/clk.c | |
parent | fe82dcec644244676d55a1384c958d5f67979adb (diff) | |
download | linux-f86b9e03837beafb4b48d53a76ee4b88559226de.tar.gz linux-f86b9e03837beafb4b48d53a76ee4b88559226de.tar.bz2 linux-f86b9e03837beafb4b48d53a76ee4b88559226de.zip |
m68k: move coldfire platform code
Move the m68k ColdFire platform support code directory to be with the
existing m68k platforms. Although the ColdFire is not a platform as such,
we have always kept all its support together. No reason to change that
as this time.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/platform/coldfire/clk.c')
-rw-r--r-- | arch/m68k/platform/coldfire/clk.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/arch/m68k/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c deleted file mode 100644 index fddfdccae63b..000000000000 --- a/arch/m68k/platform/coldfire/clk.c +++ /dev/null @@ -1,124 +0,0 @@ -/***************************************************************************/ - -/* - * clk.c -- general ColdFire CPU kernel clk handling - * - * Copyright (C) 2009, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/mutex.h> -#include <linux/clk.h> -#include <linux/io.h> -#include <linux/err.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfclk.h> - -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) -{ - 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 */ - -struct clk *clk_get(struct device *dev, const char *id) -{ - const char *clk_name = dev ? dev_name(dev) : id ? id : NULL; - struct clk *clk; - unsigned i; - - for (i = 0; (clk = mcf_clks[i]) != NULL; ++i) - if (!strcmp(clk->name, clk_name)) - return clk; - pr_warn("clk_get: didn't find clock %s\n", clk_name); - return ERR_PTR(-ENOENT); -} -EXPORT_SYMBOL(clk_get); - -int clk_enable(struct clk *clk) -{ - unsigned long flags; - spin_lock_irqsave(&clk_lock, flags); - if ((clk->enabled++ == 0) && clk->clk_ops) - clk->clk_ops->enable(clk); - spin_unlock_irqrestore(&clk_lock, flags); - - return 0; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *clk) -{ - unsigned long flags; - spin_lock_irqsave(&clk_lock, flags); - if ((--clk->enabled == 0) && clk->clk_ops) - clk->clk_ops->disable(clk); - spin_unlock_irqrestore(&clk_lock, flags); -} -EXPORT_SYMBOL(clk_disable); - -void clk_put(struct clk *clk) -{ - if (clk->enabled != 0) - pr_warn("clk_put %s still enabled\n", clk->name); -} -EXPORT_SYMBOL(clk_put); - -unsigned long clk_get_rate(struct clk *clk) -{ - return clk->rate; -} -EXPORT_SYMBOL(clk_get_rate); - -/***************************************************************************/ |