[U-Boot] bootcounter implementation for OMAP3

[Detlev Zundel <dzu@denx.de>]

Hi Nitin,

> I am trying to implement the bootcount_store and bootcount_load
> methods for the OMAP3503 processor based board which I am using.
>
> For this I decided to use the location at the end of scratchpad RAM,
> that is I am trying to write at location 0x480029BF. The code looks like 
> this, but the boot loader hags when it encounters bootcount_load.
>
>
> #ifdef CONFIG_BOOTCOUNT_LIMIT
> void bootcount_store(ulong a)
> {
> 	volatile ulong *save_addr = 
> 		(volatile ulong *)(0x480029BF);
> 	*save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | (a & 0x0000ffff);

You are writing a 32 bit entity to an non 32-bit aligned address.
Although I do not know the omap too well, this can be a problem on any
architecture.

Can you write 32-bot to that exact address from within the U-Boot
commandline with e.g. "mm"?

Cheers
  Detlev

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