Hello VENKI N,
If you're searching driver for eSDHC on MPC8308, you could check the NetComm Software:http://www.freescale.com/products/power-architecture-processors/powerquicc-processors/powerquicc-ii-...
NetComm Software Resources|Freescale
The version for MPC8308 is GA4.4, the driver is under NetCommSw\Peripherals\eSDHC\esdhc.c NetCommSw\Peripherals\eSDHC\esdhc.h
Regards
Lunmin