mx27: add i2c clock

Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>

arch/arm/cpu/arm926ejs/mx27/generic.c

@@ -159,6 +159,8 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
 	switch (clk) {
 	case MXC_ARM_CLK:
 		return imx_get_armclk();
+	case MXC_I2C_CLK:
+		return imx_get_ahbclk()/2;
 	case MXC_UART_CLK:
 		return imx_get_perclk1();
 	case MXC_FEC_CLK:

arch/arm/include/asm/arch-mx27/clock.h

@@ -26,6 +26,7 @@
 
 enum mxc_clock {
 	MXC_ARM_CLK,
+	MXC_I2C_CLK,
 	MXC_UART_CLK,
 	MXC_ESDHC_CLK,
 	MXC_FEC_CLK,