yunqu/device-tree-notes.md

Last active June 1, 2019 00:03

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Raw

1. download bitstream

echo 0 > /sys/class/fpga_manager/fpga0/flags
cp ultra_wrapper.bit /lib/firmware/
echo ultra_wrapper.bit > /sys/class/fpga_manager/fpga0/firmware

2. apply device tree blob

mkdir -p /sys/kernel/config/device-tree/overlays/pl
cat pl.dtbo > /sys/kernel/config/device-tree/overlays/pl/dtbo
cat /sys/kernel/config/device-tree/overlays/pl/status

3. remove device tree blob

rmdir /sys/kernel/config/device-tree/overlays/pl