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rpi-config: add helper to enable dwc2 peripheral support

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Document and add support to easily enable USB gadget mode.

Also fix a spelling error.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
This commit is contained in:
Peter A. Bigot 2018-05-01 10:09:27 -05:00 committed by Andrei Gherzan
parent 07d06b04dd
commit d3709fa688
2 changed files with 15 additions and 1 deletions
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10
docs/extra-build-config.md
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@ -221,7 +221,7 @@ needs a fixed core frequency and enable_uart wil set it to the minimum. Certain
operations - 60fps h264 decode, high quality deinterlace - which aren't operations - 60fps h264 decode, high quality deinterlace - which aren't
performed on the ARM may be affected, and we wouldn't want to do that to users performed on the ARM may be affected, and we wouldn't want to do that to users
who don't want to use the serial port. Users who want serial console support on who don't want to use the serial port. Users who want serial console support on
RaspberryPi3 will have to explicitely set in local.conf: RaspberryPi3 will have to explicitly set in local.conf:
ENABLE_UART = "1" ENABLE_UART = "1"
@ -229,6 +229,14 @@ Ref.:
* <https://github.com/raspberrypi/firmware/issues/553> * <https://github.com/raspberrypi/firmware/issues/553>
* <https://github.com/RPi-Distro/repo/issues/22> * <https://github.com/RPi-Distro/repo/issues/22>
## Enable USB Peripheral (Gadget) support
The standard USB driver only supports host mode operations. Users who
want to use gadget modules like g_ether should set the following in
local.conf:
ENABLE_DWC2_PERIPHERAL = "1"
## Manual additions to config.txt ## Manual additions to config.txt
The `RPI_EXTRA_CONFIG` variable can be used to manually add additional lines to The `RPI_EXTRA_CONFIG` variable can be used to manually add additional lines to

6
recipes-bsp/bootfiles/rpi-config_git.bb
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@ -172,6 +172,12 @@ do_deploy() {
echo "hdmi_drive=1" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt echo "hdmi_drive=1" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
fi fi
# DWC2 USB peripheral support
if [ "${ENABLE_DWC2_PERIPHERAL}" = "1" ]; then
echo "# Enable USB peripheral mode" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
echo "dtoverlay=dwc2,dr_mode=peripheral" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
fi
# Append extra config if the user has provided any # Append extra config if the user has provided any
echo "${RPI_EXTRA_CONFIG}" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt echo "${RPI_EXTRA_CONFIG}" >> ${DEPLOYDIR}/bcm2835-bootfiles/config.txt
} }