ARMV7: S5P: separate the peripheral clocks

Because of peripheral devices can select clock sources,
separate the peripheral clocks. (pwm, uart and so on)
It just return the pclk at s5pc1xx SoC,
but s5pc210 SoC must be calculated by own clock register setting.

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/arch/arm/include/asm/arch-s5pc1xx/clk.h b/arch/arm/include/asm/arch-s5pc1xx/clk.h
index c25e17a..3488eb7 100644
--- a/arch/arm/include/asm/arch-s5pc1xx/clk.h
+++ b/arch/arm/include/asm/arch-s5pc1xx/clk.h
@@ -33,6 +33,7 @@
 
 extern unsigned long (*get_pll_clk)(int pllreg);
 extern unsigned long (*get_arm_clk)(void);
-extern unsigned long (*get_pclk)(void);
+extern unsigned long (*get_pwm_clk)(void);
+extern unsigned long (*get_uart_clk)(int dev_index);
 
 #endif