Hello,
I'm new to U-Boot, but have been monitoring this list for a while in anticipation that I'll be using it. I've seen several questions about the EP860 board but it has not yet been added to the valid board types. I'd rather use a working port to the EP860 than redo it myself.
I've seen comments that U-Boot expects and requires a "virgin" CPU, fresh out of reset. But until I get a BDI emulator, I don't want to overwrite the original PlanetCore bootloader installed on the board. However it has a RestoreCE configuration parameter which seems to simulate a "virgin" CPU. If I jump to U-Boot in Flash using this option will it work?
RestoreCE description from the PlanetCore Bootloader manual: When transferring control to the application, first change the chip enables to map all of memory (other than the internal memory) to the FLASH. The IMMR register is reset to the initial value. The processor looks like it was just reset (more or less). However, chip enables for the rest of memory are left as mapped by the boot loader. An application can examine these chip enables and determine which memory exists and where. The UPM is still programmed for RAM. Control can only jump to FLASH when this option is used.
Finally is anyone else using Windows for their development PC? I had a few problems with the CYGWIN defines when I tried building RPXClassic board which is the obsolete version of the EP860.
Chris