AM3352: AM3352 UART2 device tree config issue

Here is the complete UART config I use:

&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pins>;

	status = "okay";
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_pins>;

	status = "okay";
};

&uart2 {
        pinctrl-names = "default";
        pinctrl-0 = <&myuart2_pins_default>;
        status = "okay";
};

&uart3 {
        pinctrl-names = "default";
        pinctrl-0 = <&myuart3_pins_default>;
        status = "okay";
};

&uart4 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart4_pins>;
	status = "okay";
};

&uart5 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart5_pins>;
	status = "okay";
};

and

	uart0_pins: pinmux_uart0_pins {
		pinctrl-single,pins = <
			0x170 ( PIN_INPUT | MUX_MODE0 ) /* (E15) uart0_rxd.uart0_rxd */
			0x174 ( PIN_OUTPUT | MUX_MODE0 ) /* (E16) uart0_txd.uart0_txd */	
		/*	0x168 ( PIN_INPUT | MUX_MODE0 )  (E18) uart0_ctsn.uart0_ctsn */
		/*	0x16c ( PIN_OUTPUT | MUX_MODE0 )  (E17) uart0_rtsn.uart0_rtsn */
		>;
	};

	uart1_pins: pinmux_uart1_pins {
		pinctrl-single,pins = <
			0x12c (PIN_INPUT_PULLDOWN | MUX_MODE5)	/* mii1_txclk.uart1_dcd */
			0x134 (PIN_OUTPUT | MUX_MODE5)		/* mii1_rxd3.uart1_dtr */
			0x138 (PIN_INPUT_PULLUP | MUX_MODE5)	/* mii1_rxd2.uart1_ri */
			0x178 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart1_cts.uart1_cts */
			0x17C (PIN_OUTPUT | MUX_MODE0)		/* uart1_rts.uart1_rts */
			0x180 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart1_rxd.uart1_rxd */
			0x184 (PIN_OUTPUT | MUX_MODE0)		/* uart1_txd.uart1_txd */
		>;
	};
	myuart2_pins_default: myuart2_pins_default {
		pinctrl-single,pins = <
			0x92c (PIN_INPUT | MUX_MODE1) /* (K18) gmii1_txclk.uart2_rxd */
			0x930 (PIN_OUTPUT | MUX_MODE1) /* (L18) gmii1_rxclk.uart2_txd */
		>;
	};

        myuart3_pins_default: myuart3_pins_default {
                        pinctrl-single,pins = <
                                        0x160 ( PIN_INPUT_PULLUP | MUX_MODE1) /* (C15) spi0_cs1.uart3_rxd */
                                        0x164 ( PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* (C18) eCAP0_in_PWM0_out.uart3_txd */
                        >;
        };

	uart4_pins: pinmux_uart4_pins {
		pinctrl-single,pins = <
                        	0x070 0x26  /* P9_11, MODE6, UART4_RXD */
                        	0x074 0x06  /* P9_13, MODE6, UART4_TXD */
		>;
	};

	uart5_pins: pinmux_uart5_pins {
		pinctrl-single,pins = <
			0x148 (PIN_INPUT_PULLUP | MUX_MODE2)	/* lcd_data9.uart5_rxd */
			0x14c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* lcd_data8.uart5_txd */
		>;
	};

like I said, all Port work fine except UART2.

Bin Liu said:

Because your pinmux setting syntax is wrong - missing AM33XX_IOPAD.

Please read my initial question please. I've started off with the syntax you mentioned. As you can see, both syntax styles are not "wrong" as you can see in the am33xx header files.

Excuse me, but how is "0x12c" the same as "0x92c" especially because one is the by default "mii1_txclk" ant the other "gmii1_txclk" which are totally different cpu pins.

I use the current ti am335x cpu sdk which accepts both syntax variants.

Actually I already use ALL 5 of 6 UART ports, which is why i need UART2 as well.

The config above compiles with the TI CPU SDK and runs fine except UART2, which is why I asked my initial question.

By the way, your kernel log seems indicating you use omap-serial UART driver. This driver is no longer maintained for quite some time, so I recommend you switch to 8250-omap UART driver.