PSC-SPI and MMC-SPI driver on lite5200b EVB. Device registration problems.

[gianfranco.casanova at alice.it]

Hi guys

I'm using a lite5200b EVB (u-boot 1.2, kernel 2.6.26.3), using the psc-spi driver and the mmc-spi driver.

I've modified the lite5200b.dts file, I'd have SPI on PSC6 and mmc_spi connected to SPI on PSC6

first I've commented 

//		spi at f00 {
//			compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi";
//			reg = <0xf00 0x20>;
//			interrupts = <2 13 0 2 14 0>;
//			interrupt-parent = <&mpc5200_pic>;
//		};

and then uncommented

		// PSC6 in spi mode example
		spi at 2c00 {		// PSC6
			compatible = "fsl,mpc5200b-psc-spi","fsl,mpc5200-psc-spi";
			cell-index = <5>;
			reg = <0x2c00 0x100>;
			interrupts = <2 4 0>;
			interrupt-parent = <&mpc5200_pic>;
			mmc_spi at 0 {
				linux,modalias = "mmc_spi";
			};
		};

I've also added a node to spi at 2c00 (I'm not sure about last change).

My question are:
a) Is this the right way to insert a node in device tree (in this example for mmc-spi) or there are an other way to pass the information to mmc-spi that SPI is on PSC6?

b) Why in /proc/devices I do not see any spi device (mpc5200b-psc-spi) or something like that?
Adding some printk I have:
Fun = mpc52xx_psc_spi_init Ret = 0
Is my of_register_platform_driver was ok.

c) BTW a Block device mmc in /proc/devices is added (not mmc-spi as I'm waiting), if I try to create a node and then write on device nothing happens.

Any suggestion?

Thanks J
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