On Tue, 27 Sep 2011 16:49:19 +0200 Detlev Zundel dzu@denx.de wrote:
Apart from that: You first have to find a storage space to store the post word. This storage needs to survive a reset of the system. Depending if that is reachable through regular memory access, you only have to define __POST_WORD_ADDR. In any other case you would need to implement a setter/getter for that word yourself.
I don't know that there is such storage space on the 8313.
I have tried setting CONFIG_BOOTCOUNT_LIMIT and get message error QE_MURAM_SIZE undeclared. Any ideas on this one ?
The code seems to have bugs - now go and find them. Or rather try a more recent version of U-Boot ;)
one 832x or 836x (keymile tuda/tuxa I believe) board implemented bootcounting, and it used QE MURAM for that storage space. The 8313 doesn't have a QE though. So unless someone finds such storage space on the non-QE 83xx SoCs, it's not elegant, but it should be ok for 83xx bootcount to depend on CONFIG_QE. Note that because MURAM is also now used to store the bootcount, its size is decreased in fdt_fixup_muram() before booting the OS.
Kim