简介
更新 USB 控制器固件可以解决 Dragonwing RB3 Gen 2 设备上的 USB 或以太网连接问题。前提条件
- 在更新 Renesas 固件之前,请确保已按照更新软件中的说明升级软件。
- 确保已安装 ADB 工具。Fastboot 会随之一起安装。
- 使用 USB Type-C 线缆将设备连接到 Ubuntu 主机。
Documentation Index
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renesas_usb_fw.mem。
adb push renesas_usb_fw.mem /lib/firmware
scp renesas_usb_fw.mem root@<ip-address-of-device>:/lib/firmware
scp renesas_usb_fw.mem root@10.92.175.138:/lib/firmware
echo "0001:04:00.0" > /sys/bus/pci/drivers/xhci-pci-renesas/bind
sh-5.3# lspci
0001:04:00.0 即为设备 ID:
0001:00:00.0 PCI bridge: Qualcomm Technologies, Inc SM8250 PCIe Root Complex [Snapdragon 865/870 5G]
0001:01:00.0 PCI bridge: Toshiba Corporation Device 0623
0001:02:01.0 PCI bridge: Toshiba Corporation Device 0623
0001:02:02.0 PCI bridge: Toshiba Corporation Device 0623
0001:02:03.0 PCI bridge: Toshiba Corporation Device 0623
0001:04:00.0 USB controller: Renesas Electronics Corp. uPD720201 USB 3.0 Host Controller (rev 03)
0001:05:00.0 Ethernet controller: Toshiba Corporation Device 0220
0001:05:00.1 Ethernet controller: Toshiba Corporation Device 0220
dmesg
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