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| author | Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> | 2016-02-24 14:03:24 +0530 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-03-02 14:47:16 +0100 |
| commit | fc9e8f2817d8024f2c1e0e13c80111a9fa4bbce9 (patch) | |
| tree | 5c808974a3c861c503547dda927866400ae2666b /arch/arm/include | |
| parent | 0156782feb7fb105b8e69de00c23d3eb60c4e3db (diff) | |
| download | u-boot-imx-fc9e8f2817d8024f2c1e0e13c80111a9fa4bbce9.zip u-boot-imx-fc9e8f2817d8024f2c1e0e13c80111a9fa4bbce9.tar.gz u-boot-imx-fc9e8f2817d8024f2c1e0e13c80111a9fa4bbce9.tar.bz2 | |
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.h | 2 |
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) |