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authorGreg Ungerer <gerg@uclinux.org>2009-03-04 10:43:06 +1000
committerGreg Ungerer <gerg@uclinux.org>2009-03-24 15:17:45 +1000
commitfacdf0ed4f594485fb2a1d2d024a150924c6b01c (patch)
tree911afb933893c6fce25ef3e36cd3fa09ac0ac87a /arch/m68knommu
parenta5505464c7c133d01f409426982aa28da111ceb8 (diff)
downloadlinux-facdf0ed4f594485fb2a1d2d024a150924c6b01c.tar.bz2
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>
Diffstat (limited to 'arch/m68knommu')
-rw-r--r--arch/m68knommu/platform/coldfire/Makefile2
-rw-r--r--arch/m68knommu/platform/coldfire/clk.c40
2 files changed, 41 insertions, 1 deletions
diff --git a/arch/m68knommu/platform/coldfire/Makefile b/arch/m68knommu/platform/coldfire/Makefile
index 4f416a91a829..1bcb9372353f 100644
--- a/arch/m68knommu/platform/coldfire/Makefile
+++ b/arch/m68knommu/platform/coldfire/Makefile
@@ -14,7 +14,7 @@
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-$(CONFIG_M5206e) += timers.o
obj-$(CONFIG_M520x) += pit.o
diff --git a/arch/m68knommu/platform/coldfire/clk.c b/arch/m68knommu/platform/coldfire/clk.c
new file mode 100644
index 000000000000..7cdbf445b28f
--- /dev/null
+++ b/arch/m68knommu/platform/coldfire/clk.c
@@ -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;
+}
+
+/***************************************************************************/