blackfin: bf60x: add clock support

Add clock support for bf60x.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

2 files changed, 37 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/clkdev.h b/arch/blackfin/include/asm/clkdev.h
new file mode 100644
index 000000000000..9053beda8c50
--- /dev/null
+++ b/arch/blackfin/include/asm/clkdev.h
@@ -0,0 +1,14 @@
+#ifndef __ASM_CLKDEV__H_
+#define __ASM_CLKDEV__H_
+
+#include <linux/slab.h>
+
+static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
+{
+        return kzalloc(size, GFP_KERNEL);
+}
+
+#define __clk_put(clk)
+#define __clk_get(clk) ({ 1; })
+
+#endif
diff --git a/arch/blackfin/include/asm/clocks.h b/arch/blackfin/include/asm/clocks.h
index 6f0b61852f58..9b3c85b3c288 100644
--- a/arch/blackfin/include/asm/clocks.h
+++ b/arch/blackfin/include/asm/clocks.h
@@ -48,4 +48,27 @@
 # define CONFIG_VCO_MULT 0
 #endif
 
+#include <linux/clk.h>
+
+struct clk_ops {
+        unsigned long (*get_rate)(struct clk *clk);
+        unsigned long (*round_rate)(struct clk *clk, unsigned long rate);
+        int (*set_rate)(struct clk *clk, unsigned long rate);
+        int (*enable)(struct clk *clk);
+        int (*disable)(struct clk *clk);
+};
+
+struct clk {
+        struct clk              *parent;
+        const char              *name;
+        unsigned long           rate;
+        spinlock_t              lock;
+        u32                     flags;
+        const struct clk_ops    *ops;
+        void __iomem            *reg;
+        u32                     mask;
+        u32                     shift;
+};
+
+int clk_init(void);
 #endif