[U-Boot-Users] Choosing flash and ram for embedded mpc5200 and loading flash
wd at denx.de
Thu Dec 2 22:42:41 CET 2004
In message <1102010876.9375.45.camel at Polar64> you wrote:
> 1. I am designing in a MPC-5200 loosely based on the MPC-5200 LITE.
> 2. I plan to keep the ethernet the same.
> 3. I plan to keep the serial console the same.
> 4. I would like to use 2 : K4H511638B-TC Samsung 32Mx16 DDR memory
> Any comments? Am I asking for trouble?
You may see some 50%+ better perfromance than on the standard
Lite5200. You may want to have a look at the icecube_5200_DDR_config
settings in the U-Boot tree.
> 5. I would like to use Toshiba 16Mx8 NOR flash TC58FVM6T2ATG-65. It
> uses common flash interface.
> Any comments? I am choosing this over the AMD flash in the reference
> design based on availability.
> Finally, I have a MPC-823 set up as a JAM player over JTAG for use with
> Altera parts. Is there any way to move the u-boot image to a JAM file
> which could then be loaded via the MPC-5200? I am trying not to have to
> purchase the BDI-2000. I suspect that I could also use my FPGA (I will
Reconsider. This is the only item in your plan where I really
recommend to reconsider.
> have an Altera cyclone device connected on the local bus) as a flash
> programmer by porting the programming algorithm from the NIOS reference
> board, and having pins connected to the necessary Flash pins.
You _can_ do many things, if you have enough time and nerves. You can
re-invent gthe wheel again and again and again, or you can nail a
piano to your kneecap. Some people actually like doing these things.
I rather get a project done as smoothly and reliable as possible.
> On a scale of 1 - 10 how useful is the BDI-2000 10 being no one will be
> able to help me at all without it. For reference, I am one of those
> people who never use a debugger.
If you never use a debugger that you will not use the BDI either, so
it's 0 for you. For me, ist's something between 10 and 20.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
The greatest threat towards future is indifference.
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