There are some MDOC drivers in the kernel MTD system at present. Putting them in u-boot wouldn't be so much of a stretch.

How you use the single part in u-boot will depend on how big xip region is and its attributes. You might get away with folding it right in, or you might need a sub loader like we used for our TI NAND boots for OMAP processors.

The OMAP 16xx/17xx/24xx processor allow for booting from a RAW NAND devices and can be made to work with u-boot. In there case they have microcode in the cpu which reads some blocks of nand into onchip SRAM and executes it.

Regards, Richard W.

-----Original Message----- From: u-boot-users-admin@lists.sourceforge.net [mailto:u-boot-users- admin@lists.sourceforge.net] On Behalf Of Herb Radford Sent: Thursday, September 02, 2004 6:37 AM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] M-Systems Disk on Chip and U-boot

We're looking at using a DoC on our next product and I was wondering

how

the drivers (obviously supplied by M-Systems) are merged into U-Boot

code?

One of the newer P3 chips has an IPL section which is "execute in

place"

and would contain early initialization code for the cpu/board/SDRAM

and

then copy the body of the code into SDRAM. This idea sounds good for

cost

reasons (one device) but seems like an ugly hack to the structure of U-Boot. Any comments?

Regards, Herb

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