Enabling AM437x SPI communication with TI Linux kernel 3.12.10

Hi TI,

I'm having hard time with enabling SPI communication with AM437x and TI Linux kernel 3.12.10. I want to get user interface of SPI as /dev/spidevX.X.

I have followed this post: http://processors.wiki.ti.com/index.php/Linux_Core_SPI_User's_Guide

But I just don't get any sipdev device. This is my device tree SPI configuration:

	aliases {
		display0 = &lcd0;
		display1 = &hdmi0;
		i2c0 = &i2c0;
		i2c1 = &i2c1;
		serial0 = &uart0;
		serial3 = &uart3;
		serial5 = &uart5;
		d_can0 = &dcan0;
		d_can1 = &dcan1;
		spi0 = &spi0;
	};

	spi0_pins: pinmux_spi0_pins {
		pinctrl-single,pins = <
			0x150 (PIN_INPUT | MUX_MODE0) /* spi0_clk.spi0_clk */
			0x154 (PIN_OUTPUT | MUX_MODE0) /* spi0_d0.spi0_d0 */
			0x158 (PIN_INPUT | MUX_MODE0) /* spi0_d1.spi0_d1 */
			0x15C (PIN_OUTPUT | MUX_MODE0) /* spi0_cs0.spi0_cs0 */
		>;
	};

&spi0 {
	pinctrl-0 = <&spi0_pins>;
	status = "okay";

	spidev@0 {
		compatible = "rohm,dh2228fv";
		spi-max-frequency = <24000000>;
		reg = <0>;
	};
};

I also included the Mcspi driver to Linux kernel. Could you please help me? What am I missing?

Thank you very much and best regards,

Jan Moravec