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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>
utp
Bhuvanchandra DV 2016-02-24 14:03:24 +05:30 committed by Stefano Babic
parent 0156782feb
commit fc9e8f2817
1 changed files with 1 additions and 1 deletions
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2
arch/arm/include/asm/arch-vf610/iomux-vf610.h
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@ -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)