colibri-vf: Disable pull-up configuration in GPIO pin mux

During very early boot-ROM execution the pinmux
configuration isi in Hi-Z state. If pull-up is enabled
on GPIO pad's there will be a short period of toggle
from high to low on the IO when GPIO is set low during
boot. To avoid this glitch, disable pull-up configuration
in GPIO pinmux.

Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>

diff --git a/arch/arm/include/asm/arch-vf610/iomux-vf610.h b/arch/arm/include/asm/arch-vf610/iomux-vf610.h
index 0e2bd5366cad3aeaab1338cbe2a02ddee107b1c4..a140be05f1c18e835c7bccdb992684d9ea14aae2 100644 (file)
--- a/arch/arm/include/asm/arch-vf610/iomux-vf610.h
+++ b/arch/arm/include/asm/arch-vf610/iomux-vf610.h
@@ -34,7 +34,7 @@
                                PAD_CTL_PUS_22K_UP | PAD_CTL_OBE_IBE_ENABLE)
 
 #define VF610_GPIO_PAD_CTRL    (PAD_CTL_SPEED_MED | PAD_CTL_DSE_50ohm | \
-                               PAD_CTL_PUS_47K_UP | PAD_CTL_IBE_ENABLE)
+                               PAD_CTL_IBE_ENABLE)
 
 #define VF610_DSPI_PAD_CTRL    (PAD_CTL_OBE_ENABLE | PAD_CTL_DSE_20ohm | \
                                PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_HIGH)