Hi,
We are using ls1012a On our board, the usb2.0 is connected to a USB phy(USB3300), The USB 2.0 controller with ULPI interface provides point-to-point connectivity that complies with the USB specification, Rev. 2.0.
In the datasheet of USB3300, the usb3300 is described as:
The USB3300 is an industrial temperature Hi-Speed USB Physical Layer Transceiver (PHY). The USB3300 uses a low pin count interface (ULPI) to connect to a ULPI compliant Link layer
In our design, there is a pluggable LTE module connected to the mini USB connector.
In fsl-ls1012a.dtsi, the usb2.0 node is defined as below:
usb1: usb2@8600000 {
compatible = "fsl-usb2-dr-v2.5", "fsl-usb2-dr";
reg = <0x0 0x8600000 0x0 0x1000>;
interrupts = <0 139 0x4>;
dr_mode = "host";
phy_type = "ulpi";
};
In my device tree source file, I enabled usb2.0
&usb1 {
status = "okay";
};
I also enabled the related USB serial driver in menuconfig already, but there is no file like ttyUSBx created under /dev in my linux kernel. Here is some info about USB in dmesg output. Is my device tree configuration correct? or how could I modify it? Thank you.
root@localhost:~# dmesg|grep -i usb
[ 0.348936] usbcore: registered new interface driver usbfs
[ 0.354550] usbcore: registered new interface driver hub
[ 0.359968] usbcore: registered new device driver usb
[ 0.961123] dwc3 2f00000.usb3: Failed to get clk 'ref': -2
[ 0.968030] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.984436] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.006295] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[ 1.030963] hub 1-0:1.0: USB hub found
[ 1.044596] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[ 1.052289] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0 SuperSpeed
[ 1.058977] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 1.067660] hub 2-0:1.0: USB hub found
[ 1.075905] usbcore: registered new interface driver usb-storage
[ 1.240391] usbcore: registered new interface driver usbhid
[ 1.246078] usbhid: USB HID core driver
Hello Kai Wu,
In your log, it shows the FSL EHCI controller was not initialized, only the XHCI controller init done.
Below is the items that needed for EHCI in kernel .config:
Basing on default LSDK config, make sure below CONFIGs have been selected:
If your problem remains, would you please provide full dtsi & dts source file and kernel’s .config file to do more investigation.
Thanks,
Yiping
Hi yipingwang
Thanks for your reply, I have enabled most of them in my menuconfig.
But I cannot find EHCI support for PPC USB controller on OF platform bus.
Also I found Support for Freescale on-chip EHCI USB controller but in your screenshot it is Support for Freescale PPC on-chip EHCI USB controller, see below.
I tried to search for USB_EHCI_HCD_PPC_OF in menuconfig, it is found in the search result, but I cannot find it in menuconfig. Is there any mistake in my menuconfig?
Below is the latest dmesg output, also I attached my device tree files.
Hi yipingwang,
We are connecting an LTE module(EC25 mini pci-e from quectel) to our board. LTE module is connected to the USB3300 via a mini PCI-E connector. But now the ULPI info is not found in dmesg at all.
LS1012a(ulpi interface) <----> USB3300(usb phy) <-------> LTE module
The diagram below shows the hardware design of EC25 mini pci-e.
I am following the instructions from quectel, but ulpi info is still not found in dmesg, also ttyUSBx is not found.
Hi yipingwang,
This is the uboot output. USB2.0 seems not found in boot. I attached the Linux kernel boot log and the dmesg output.
