Hello,
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);
}
ulong bootcount_load(void)
{
volatile ulong *save_addr = (volatile ulong *)(0x480029BF);
if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
return 0;
else
return (*save_addr & 0x0000ffff);
}
#endif /* CONFIG_BOOTCOUNT_LIMIT */
Am I doing some thing wring fundamentally? Can I get some pointers towrads this?
Also this code I have put in cpu/arm_cortexa8/cpu.c. Is there a way I can put
these functions in OMAP3 specific code and still have them called?
regards
-Nitin
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