From: qianfan Zhao <qianfanguijin@xxxxxxx> History: ======= v4(2022-05-18): - Enable both musb and OHCI/EHCI support Tests: ====== All test cases were tested on bananapi-m2-ultra. 1. USB DEVICE(ping test) Enable usb gadget rndis network, ping m2u on ubuntu host: ➜ ~ ping 192.168.200.2 PING 192.168.200.2 (192.168.200.2) 56(84) bytes of data. 64 bytes from 192.168.200.2: icmp_seq=1 ttl=64 time=0.544 ms 64 bytes from 192.168.200.2: icmp_seq=2 ttl=64 time=0.269 ms 64 bytes from 192.168.200.2: icmp_seq=3 ttl=64 time=0.300 ms 64 bytes from 192.168.200.2: icmp_seq=4 ttl=64 time=0.295 ms 64 bytes from 192.168.200.2: icmp_seq=5 ttl=64 time=0.283 ms 64 bytes from 192.168.200.2: icmp_seq=6 ttl=64 time=0.226 ms 64 bytes from 192.168.200.2: icmp_seq=7 ttl=64 time=0.246 ms 64 bytes from 192.168.200.2: icmp_seq=8 ttl=64 time=0.204 ms 64 bytes from 192.168.200.2: icmp_seq=9 ttl=64 time=0.302 ms 64 bytes from 192.168.200.2: icmp_seq=10 ttl=64 time=0.249 ms 64 bytes from 192.168.200.2: icmp_seq=11 ttl=64 time=0.459 ms 64 bytes from 192.168.200.2: icmp_seq=12 ttl=64 time=0.232 ms 64 bytes from 192.168.200.2: icmp_seq=13 ttl=64 time=0.275 ms 64 bytes from 192.168.200.2: icmp_seq=14 ttl=64 time=0.243 ms 2. USB HOST(OHCI) Connect an usb serial port on OTG port, nex t is the kernel log: [ 27.824137] usb 2-1: new full-speed USB device number 2 using ohci-platform [ 28.865504] cdc_acm 2-1:1.0: ttyACM0: USB ACM device [ 29.565509] cdc_acm 2-1:1.2: ttyACM1: USB ACM device 3. USB HOST(EHCI) Connect an usb storage on OTG port, next is the kernel log: [ 17.754147] usb 1-1: new high-speed USB device number 2 using ehci-platform [ 17.955995] usb-storage 1-1:1.0: USB Mass Storage device detected [ 18.024497] scsi host1: usb-storage 1-1:1.0 [ 19.035091] scsi 1:0:0:0: Direct-Access General USB Flash Disk 1.0 PQ: 0 ANSI: 2 [ 19.049717] sd 1:0:0:0: [sda] 7831552 512-byte logical blocks: (4.01 GB/3.73 GiB) [ 19.060873] sd 1:0:0:0: [sda] Write Protect is off [ 19.071018] sd 1:0:0:0: [sda] No Caching mode page found [ 19.076437] sd 1:0:0:0: [sda] Assuming drive cache: write through [ 19.093566] sda: sda1 [ 19.103492] sd 1:0:0:0: [sda] Attached SCSI removable disk issues: ======= The system power often turned off when I plugged an usb device into the OTG port. It's not clear why. qianfan Zhao (2): ARM: dts: sun8i-r40: Add USB0_OTG/HOST support ARM: dts: bananapi-m2-ultra: Enable USB0_OTG and HOST support .../boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 39 +++++++++++++++++++ arch/arm/boot/dts/sun8i-r40.dtsi | 34 ++++++++++++++++ 2 files changed, 73 insertions(+) -- 2.25.1
