sh: clock div6 helper code

This patch adds div6 clock helper code. The div6 clocks
are simply 6-bit divide-by-n modules where n is 1 to 64.

Needed for vclk on sh7722, sh7723, sh7343 and sh7366.
sh7724 needs this even more for vclk, fclka, fclkb,
irdaclk and spuclk.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
index 7435e40022e6..026b9daa5584 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -145,4 +145,14 @@ int sh_clk_mstp32_register(struct clk *clks, int nr);
 int sh_clk_div4_register(struct clk *clks, int nr,
                          struct clk_div_mult_table *table);
 
+#define SH_CLK_DIV6(_name, _parent, _reg, _flags)       \
+{                                                       \
+        .name = _name,                                  \
+        .parent = _parent,                              \
+        .enable_reg = (void __iomem *)_reg,             \
+        .flags = _flags,                                \
+}
+
+int sh_clk_div6_register(struct clk *clks, int nr);
+
 #endif /* __ASM_SH_CLOCK_H */