omap3: beagle: Use GPTIMERi 1 for clockevents

The current selection of the GPTIMER on was result of
a hardware issue in early versions of the Beagleboards
(Ax and B1 thru B4). [1] [2]

Its been long since the hardware issue has been fixed.
This patch uses GPTIMER 1 for all newer board revisions
incl. Beagleboard XM.

 [1] http://thread.gmane.org/gmane.comp.hardware.beagleboard.general/91
 [2] Errata torvalds#7 at http://elinux.org/BeagleBoard#Errata

Signed-off-by: Sanjeev Premi <[email protected]>
Cc: Paul Walmsley <[email protected]>
Reviewed-by: Paul Walmsley <[email protected]>

Author: Sanjeev Premi

arch/arm/mach-omap2/board-omap3beagle.c

@@ -580,7 +580,10 @@ static void __init omap3_beagle_init_irq(void)
 	omap_init_irq();
 	gpmc_init();
 #ifdef CONFIG_OMAP_32K_TIMER
-	omap2_gp_clockevent_set_gptimer(12);
+	if (omap3_beagle_version == OMAP3BEAGLE_BOARD_AXBX)
+		omap2_gp_clockevent_set_gptimer(12);
+	else
+		omap2_gp_clockevent_set_gptimer(1);
 #endif
 }