[U-Boot-Users] RTC for MPC5200

Victor Wren vwren at timension.com
Thu Jan 8 22:05:01 CET 2004

Good morning.  I have a couple of questions.  After struggling with an initrd
boot for a few days, I said "heck with it" and just made /dev/hda2 my root
device.  Given that the kernel is in flash, and the devices I need are
compiled in (and I don't have module support), is there any reason to
mess around with an initrd-style boot, given that we absolutely know 
what the hardware config is going to be?  It works like a charm with the 
default DENX Sys-V init, from the ppc-82xx tree, by the way, though I will
have to prune some services.

The other question regards the real time clock on the MPC5200.  Unless I am
seriously overlooking something, this does not appear to be implemented, yet,
yes?  The register structure doesn't look too arcane.  Is anybody working on
this?  I am tempted, but nobody wants to roll in code from a rank novice.  The
project we're working on needs a self-contained clock.  I notice that u-boot
provides rtc services, but isn't that more properly a kernel function?  I'm
a little fuzzy on the dividing line.

Victor Wren

More information about the U-Boot mailing list