This reverts commit 
3978bdb4ed653342b0be66c031bf61b72cc55d60, now that
critical interrupts are properly supported on ppc64 booke.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Laurentiu Tudor <Laurentiu.Tudor@freescale.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
 
        val &= ~WDTP_MASK;
        val |= (TCR_WIE|TCR_WRC(WRC_CHIP)|WDTP(booke_wdt_period));
 
-#ifdef CONFIG_PPC_BOOK3E_64
-       /*
-        * Crit ints are currently broken on PPC64 Book-E, so
-        * just disable them for now.
-        */
-       val &= ~TCR_WIE;
-#endif
-
        mtspr(SPRN_TCR, val);
 }