On Fri, Aug 21, 2009 at 6:23 PM, Peter Belm peterbelm@gmail.com wrote:
This is not quite correct. "romReserved" is only used for the, well, reserved entries. There are other parameters passed, these two are pretty important for example:
The thing I don't get is if you expand the RVECENT macro into the code wouldn't you get this:
_start: b reset; nop /* U-boot entry point */
On power on, first instruction that will get executed is 'b reset, nop'. So code will Jump to reset label from where actual booting sequence start.
b reset; nop /* software reboot */
b romReserved b romReserved
....
romReserved: b romReserved
So wouldn't it get stuck in an infinite loop straight away, calling romReserved recursively? I'm obviously overlooking something I think.
So romReserved will not get called in normal booting-sequence as code will jump to 'reset' label. In case of some exception 'romReserved' will be called and then board will struck in while loop.
Thanks, Chetan Nanda
And what's the point of passing the second parameter (0-127) to RVECENT when it's not used?
-- Regards, Peter Belm
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