[ARM] S3C2412: Correct parents for EREFCLK and UREFCLK

For s3c2412, set parent for clk_erefclk and clk_urefclk.
This allow for example to use xtal or extclk for i2s clock.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Matthieu Castet <matthieu.castet@parrot.com>

arch/arm/mach-s3c2412/clock.c

@@ -631,6 +631,17 @@ static struct clk_init clks_src[] __initdata = {
 		.bit	= S3C2412_CLKSRC_USBCLK_HCLK,
 		.src_0	= &clk_usysclk,
 		.src_1	= &clk_h,
+	/* here we assume  OM[4] select xtal */
+	}, {
+		.clk	= &clk_erefclk,
+		.bit	= S3C2412_CLKSRC_EREFCLK_EXTCLK,
+		.src_0	= &clk_xtal,
+		.src_1	= &clk_ext,
+	}, {
+		.clk	= &clk_urefclk,
+		.bit	= S3C2412_CLKSRC_UREFCLK_EXTCLK,
+		.src_0	= &clk_xtal,
+		.src_1	= &clk_ext,
 	},
 };
 
@@ -666,8 +677,6 @@ static void __init s3c2412_clk_initparents(void)
 static struct clk *clks[] __initdata = {
 	&clk_ext,
 	&clk_usb_bus,
-	&clk_erefclk,
-	&clk_urefclk,
 	&clk_mrefclk,
 	&clk_armclk,
 };

include/asm-arm/arch-s3c2410/regs-clock.h

@@ -189,6 +189,8 @@ s3c2410_get_pll(unsigned int pllval, unsigned int baseclk)
 #define S3C2412_CLKSRC_I2SCLK_MPLL		(1<<9)
 #define S3C2412_CLKSRC_USBCLK_HCLK		(1<<10)
 #define S3C2412_CLKSRC_CAMCLK_HCLK		(1<<11)
+#define S3C2412_CLKSRC_UREFCLK_EXTCLK	(1<<12)
+#define S3C2412_CLKSRC_EREFCLK_EXTCLK	(1<<14)
 
 #endif /* CONFIG_CPU_S3C2412 | CONFIG_CPU_S3C2413 */