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RPI CONFIG: Disable UART explicitly, fixes #567 #568

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RPI CONFIG: Disable UART explicitly, fixes #567 #568

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RPI CONFIG: Disable UART fix
myfreescalewebpage Jan 20, 2020
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RPI CONFIG: Explicitly indicate if UART should be disabled
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6 changes: 6 additions & 0 deletions docs/extra-build-config.md
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Expand Up @@ -228,9 +228,15 @@ RaspberryPi 0 Wifi or 3 will have to explicitly set in local.conf:

ENABLE_UART = "1"

Users who don't want the serial console support at all should explicitly
disable the UART in local.conf. This permit to use it for something else:

ENABLE_UART = "0"

Ref.:
* <https://github.com/raspberrypi/firmware/issues/553>
* <https://github.com/RPi-Distro/repo/issues/22>
* <https://github.com/agherzan/meta-raspberrypi/issues/567>

## Enable USB Peripheral (Gadget) support

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3 changes: 3 additions & 0 deletions recipes-bsp/bootfiles/rpi-config_git.bb
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Expand Up @@ -159,6 +159,9 @@ do_deploy() {
if [ "${ENABLE_UART}" = "1" ]; then
echo "# Enable UART" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
echo "enable_uart=1" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
elif [ "${ENABLE_UART}" = "0" ]; then
echo "# Disable UART" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
echo "enable_uart=0" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
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fi

# VC4 Graphics support
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