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authorBhuvanchandra DV <bhuvanchandra.dv@toradex.com>2016-02-24 14:03:24 +0530
committerStefano Babic <sbabic@denx.de>2016-03-02 14:47:16 +0100
commitfc9e8f2817d8024f2c1e0e13c80111a9fa4bbce9 (patch)
tree5c808974a3c861c503547dda927866400ae2666b /arch/arm/include
parent0156782feb7fb105b8e69de00c23d3eb60c4e3db (diff)
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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>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arch-vf610/iomux-vf610.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-vf610/iomux-vf610.h b/arch/arm/include/asm/arch-vf610/iomux-vf610.h
index 0e2bd53..a140be0 100644
--- 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)