[U-Boot-Users] FW: Please help out to solve this flash problen inU-boot

[TXEMA LOPEZ]

Hi yogesh,

I don't know what is exactly happening with your porting but I suggest you to take a look in the porting done for the Lite5200B in the 1.1.4 U-Boot version. The mapping for the Lite5200B is quite similar to your board, it has to flash memories mapped in the 0xFF000000 (CS0) and 0xFE000000 (CS1). I think the Lite5200B porting could be a better starting point for your porting than the IceCube,(and the last U-Boot version too).
Anyway, something is not very clear in your explanation: Is the flash  mapped at the 0xFE000000 address or at the 0xFC000000 address? You say that it is mapped at the 0xFE000000 but CFG_CS1_START is 0xFC000000. 


Best Regards,
José María López.

 -----Mensaje original-----
De: 	u-boot-users-bounces at lists.sourceforge.net [mailto:u-boot-users-bounces at lists.sourceforge.net]  En nombre de Yogesh Kumar M
Enviado el:	viernes, 01 de septiembre de 2006 13:52
Para:	u-boot-users at lists.sourceforge.net
Asunto:	[U-Boot-Users] FW: Please help out to solve this flash problen inU-boot

 <<Archivo: icecube.c>> <<Archivo: IceCube.h>> <<Archivo: ATT1253471.txt>> <<Archivo: ATT1253472.txt>> Hi All
This is yogesh,we have a custom made board with

         1)MPC5200B(with host bridge support)
         2)PCI2PCI Bridge device from texas instruments
         3)DM642 dsp based processor
         and other I/O devices like serial port,HDD interface,ethernet etc

         we have successfully ported U-BOOT 1.1.2 and linux-2.4.25 where all
the interfaces are working fine

        we have interfaced with the GUI application also.

	 we have 2 16 MB flash in this MPC5200 board

			which are mapped as FF000000 CS0 or BOOTCS
			  FE000000 CS1 as my storage flash

CS0 which is mapped to FF000000 is working fine without any issue.
CS1 which is mapped to FE000000 has no response means chipselect it self is
not generated

#define CFG_FLASH1_BASE		0xFC000000
#define CFG_FLASH1_SIZE		0x01000000

#define CFG_CS1_START       	0xFC000000
#define CFG_CS1_SIZE          CFG_FLASH1_SIZE	which i have defined in
Icecube.h

and i have enabled bit 14 and 15 as explained in mpc5200 datasheet

*(vu_long *)MPC5XXX_ADDECR |= (3 << 16); /* enable CS1  added for CS1 chip
Select */

I have enabled CE (chip enable bit) and ME (Master enable bit)

and when i read my F000000C i can see the masked bits
and if i read F00000054 i am able to see the address mapped as 0000fe00 ie
is fe000000

can you please tell me what could be wrong since i am struck with this
problem since long time.

thanks
yogesh