Dave Liu wrote:
On Thu, 2006-11-30 at 22:45 -0500, Jerry Van Baren wrote:
Hi Dave Liu,
The following patch adds a configuration to do "low boot" (HRCW.BMS = 0) as well as "high boot" (HRCW.BMS = 1).
Many people, myself included :o) prefer to boot out of low memory. It has an added benefit that, if you screw up the image of of u-boot in low memory, you can switch SW9.3 FCFG and boot using the BCSR, which "high boots" (assuming you smart enough to keep a valid u-boot image at 0xFFF00000).
The 8360EMDS u-boot is booting at low memory in default now. You can change it for high memory.
The patch is against the top of the denx.de repository (thanks, Wolfgang, for pulling the fsl patches).
Thanks Wolfgang and Stefan for pulling them.
Yes, if the board is not configured as a PCI slave. I forgot to ask, is that a hardware restriction or is it OK to "boot low" as a PCI slave (mostly curious)?
In defense of the patch, it is nice to be able to easily configure u-boot to boot high or low. The Makefile configuration trick is really handy and is how several boards handle it.
Thanks, gvb