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Bootcmd break
Added by Tim Eastham almost 12 years ago
I am presently storing the firmware in non-volatile memory when I hand it off for testing. The problem is, sometimes I need to just download some code into ram to test. Is there a way to provide an opportunity to break in a bootcmd? Here is what I have:
bootcmd = 'sf probe 0;sf read 0xc0700000 0x580000 0x80000;loadfpga 0xc0700000;sf read 0xc0700000 0x100000 0x280000;bootelf 0xc0700000'
Before it calls the sf read after the loadfpga, is there a command I can call that will give the user an option to break out? Something like the countdown that happens before the bootcmd would be cool.
Thanks,
Tim
Replies (2)
RE: Bootcmd break - Added by Michael Williamson almost 12 years ago
Tim,
Just hit a key and break and load the code manually?
If you want the FPGA to be loaded, then we often make a separate script for loading the fpga, e.g:
setenv progfpga 'sf probe 0;sf read 0xc0700000 0x580000 0x80000;loadfpga 0xc0700000'
than you can "run progfpga" to load the fpga up and press on with your manual loads.
Similarly you can make your a variable called loadapp
setenv loadapp 'sf probe 0; sf read 0xc0700000 0x100000 0x280000;bootelf 0xc0700000'
you can reassign the bootcmd to something like 'run progfpga; run loadapp'
That's about all I have...
-Mike
RE: Bootcmd break - Added by Tim Eastham almost 12 years ago
That is exactly what I need. Thanks Mike.
