Re: No output from SMC1 console with the 2.6.26 kernel (8xx based board)

["Matvejchikov Ilya" <matvejchikov@gmail.com>]

> Did you use CONFIG_PPC_CPM_NEW_BINDING in 2.6.25?  It became mandatory in
> 2.6.26.  Also, try commenting out cpm_setbrg() calls in case the
> frequency is not being set properly.

Yes, this option was enabled. Nothing changed with empty cpm_setbrg()
function :(

> 2.6.26 introduced the allocation of the CPM2 SMC parameter RAM area; what
> did your device node look like in 2.6.25?  What happens if you use that
> device tree with 2.6.26?

The cpm node for the 2.6.25.4 kernel was the following:

		cpm@119c0 {
			#address-cells = <1>;
			#size-cells = <1>;
			#interrupt-cells = <2>;
			compatible = "fsl,mpc8280-cpm", "fsl,cpm2";
			reg = <119c0 30>;
			ranges;

			muram {
				#address-cells = <1>;
				#size-cells = <1>;
				ranges = <0 0 10000>;

				data-only@0 {
					compatible = "fsl,cpm-muram-data";
					reg = <100 1f00 9800 800>;
				};
			};

			brg@119f0 {
				compatible = "fsl,cpm-brg", "fsl,cpm2-brg";
				reg = <119f0 10 115f0 10>;
			};

			smc1: serial@11a80 {
				device_type = "serial";
				compatible = "fsl,cpm2-smc-uart";
				reg = <11a80 20 0 40>;
				interrupts = <4 8>;
				interrupt-parent = <&PIC>;
				fsl,cpm-brg = <7>;
				fsl,cpm-command = <1d000000>;
			};

		};

(muram node for 2.6.25 is differs from muram node for the 2.6.26)

With this device tree I have a warning message from cpm_uart driver
tells that the dts file needs to be updated.

Ilya.