Re: Reading OMAP3 CONTROL_RAND_KEY_0 register hangs

[Dirk Behme <dirk.behme@googlemail.com>]

Woodruff, Richard wrote:
>> With OMAP3530 on BeagleBoard we like to read OMAP3's
>> CONTROL_RAND_KEY_0 (0x4800 2318) register with something like
>>
>> printf ("attempting cpu_uid read\n");
>> u32 cpu_uid = *((u32 *) 0x48002318);
>> /* u32 cpu_uid = readl(&ctrl_base->randkey_0); */
>> printf ("cpu_uid read done\n");
> 
> This address is not accessible out side of secure mode along with some other qualifiers.
> 
> Trying to access is futile and will result in an abort.  The control register range is full of readable and aborting addresses.

Is there any hint in TRM (spruf98b.pdf) identifying/marking which 
registers are readable in normal and which are only accessible in 
secure mode?

Thanks

Dirk