Telling the kernel about a Flash SPI...

[Guillaume Dargaud <dargaud@lpsc.in2p3.fr>]

Hello all,
I have a flash memory in a custom device and I'd like to place a standard filesystem on it, so I guess there must be a way 
to tell the kernel to use it.
Here's the DTS definition:

		Flash_Serie: gpio@81460000 {
			compatible = "xlnx,xps-gpio-2.00.a", "xlnx,xps-gpio-1.00.a";
			reg = < 0x81460000 0x10000 >;
			xlnx,all-inputs = <0x0>;
			xlnx,all-inputs-2 = <0x0>;
			xlnx,dout-default = <0x0>;
			xlnx,dout-default-2 = <0x0>;
			xlnx,family = "virtex4";
			xlnx,gpio-width = <0xa>;
			xlnx,gpio2-width = <0x20>;
			xlnx,interrupt-present = <0x1>;
			xlnx,is-dual = <0x0>;
			xlnx,tri-default = <0xffffffff>;
			xlnx,tri-default-2 = <0xffffffff>;
		} ;

The bits are addressed as such:
// Flash memory control
#define FLASH_SCK  		(1<<4)		// Serial Clock
#define FLASH_SI   		(1<<3)		// Data Out _to_ the flash (DO)
#define FLASH_RSTN 		(1<<2)		// Reset
#define FLASH_WPN  		(1<<1)		// Write Protect
#define FLASH_SO   		(1<<0)		// Data In _from_ the flash (DI)

So how can I tell the kernel that there's a FAT32 or ext2 filesystem on it (note, I don't need it as a root/boot 
filesystem) ?

Thanks.
-- 
Guillaume Dargaud
http://www.gdargaud.net/