U8500/Snowball how to release the second core from the trap?

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Hi,

I am trying to enable the second core (For test purposes I am running my code from u-boot). For that I wrote address of routine for the second core at address U8500_BACKUPRAM0_BASE + UX500_CPU1_JUMPADDR_OFFSET and 0xA1FEED01 at U8500_BACKUPRAM0_BASE + UX500_CPU1_WAKEMAGIC_OFFSET . But nothing happened. Is there anything that I have to do in addition to that to have the second CPU jumped to the address specified in U8500_BACKUPRAM0_BASE + UX500_CPU1_JUMPADDR_OFFSET?
BTW what is the address of the trap where the second core is running?

Thanks