[U-Boot] [PATCH 1/2] OMAP3 Turn on the GPIO bank clocks

Tom Rix Tom.Rix at windriver.com
Fri May 29 20:57:31 CEST 2009


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 at windriver.com>
---
 cpu/arm_cortexa8/omap3/clock.c |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)

diff --git a/cpu/arm_cortexa8/omap3/clock.c b/cpu/arm_cortexa8/omap3/clock.c
index d035677..0306b6c 100644
--- a/cpu/arm_cortexa8/omap3/clock.c
+++ b/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);
-- 
1.6.0.5



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