m68knommu: introduce basic clk infrastructure

Create basic support for clk API. Recent changes to the FEC driver
(used by many ColdFire family parts) need this. Initially only
supports getting the master clock frequency.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Greg Ungerer 2009-03-04 10:43:06 +10:00
parent a5505464c7
commit facdf0ed4f
2 changed files with 41 additions and 1 deletions

View File

@ -14,7 +14,7 @@
asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
obj-$(CONFIG_COLDFIRE) += dma.o entry.o vectors.o obj-$(CONFIG_COLDFIRE) += clk.o dma.o entry.o vectors.o
obj-$(CONFIG_M5206) += timers.o obj-$(CONFIG_M5206) += timers.o
obj-$(CONFIG_M5206e) += timers.o obj-$(CONFIG_M5206e) += timers.o
obj-$(CONFIG_M520x) += pit.o obj-$(CONFIG_M520x) += pit.o

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@ -0,0 +1,40 @@
/***************************************************************************/
/*
* clk.c -- general ColdFire CPU kernel clk handling
*
* Copyright (C) 2009, Greg Ungerer (gerg@snapgear.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/clk.h>
#include <asm/coldfire.h>
/***************************************************************************/
struct clk *clk_get(struct device *dev, const char *id)
{
return NULL;
}
int clk_enable(struct clk *clk)
{
return 0;
}
void clk_disable(struct clk *clk)
{
}
void clk_put(struct clk *clk)
{
}
unsigned long clk_get_rate(struct clk *clk)
{
return MCF_CLK;
}
/***************************************************************************/