Hi Bob,
did you try running U-Boot from RAM? I am still trying to get CONFIG_MONITOR_IS_IN_RAM to work completely, but am stuck in speed.c/clock_pll().
When trying to put the RAM (Mobile DDR in my case) into self-refresh mode and/or setting the PLL via LIMP mode, the program crashes. The function itself is copied from the linux kernel, but there it is used only with fsys==0, thus bypassing the whole re-setting of the PLL.
All is working when I let the code run from flash or completely disable re-setting the PLL by some #ifndef CONFIG_MONITOR_IS_IN_RAM, and now I am wondering if this has something to do with my RAM, or if I am still doing anything wrong when trying to put the RAM in self-refresh mode.
Best regards, Wolfgang
PS: the problem in env_init was related to bad chip select setups, I did not realize that the values of CFG_CSx_BASE had to be truncacted to the upper 16 bits