OMAP3 Turn on the GPIO bank clocks

The function and interface clocks for each GPIO bank, except the first, must
be explicitly turned on.  These are controlled by the config level defines
CONFIG_OMAP3_GPIO_n where n is from 2 to 6.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
Acked-by: Dirk Behme <dirk.behme@googlemail.com>

cpu/arm_cortexa8/omap3/clock.c

@@ -357,6 +357,28 @@ void per_clocks_enable(void)
 	sr32(&prcm_base->fclken_per, 11, 1, 0x1);
 	sr32(&prcm_base->iclken_per, 11, 1, 0x1);
 #endif
+
+#ifdef CONFIG_OMAP3_GPIO_2
+	sr32(&prcm_base->fclken_per, 13, 1, 1);
+	sr32(&prcm_base->iclken_per, 13, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_3
+	sr32(&prcm_base->fclken_per, 14, 1, 1);
+	sr32(&prcm_base->iclken_per, 14, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_4
+	sr32(&prcm_base->fclken_per, 15, 1, 1);
+	sr32(&prcm_base->iclken_per, 15, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_5
+	sr32(&prcm_base->fclken_per, 16, 1, 1);
+	sr32(&prcm_base->iclken_per, 16, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_6
+	sr32(&prcm_base->fclken_per, 17, 1, 1);
+	sr32(&prcm_base->iclken_per, 17, 1, 1);
+#endif
+
 #ifdef CONFIG_DRIVER_OMAP34XX_I2C
 	/* Turn on all 3 I2C clocks */
 	sr32(&prcm_base->fclken1_core, 15, 3, 0x7);