AM3358: Arago-base-tisdk-image-am335x-evm

Hello Nancy,

To confirm, is the USB device working as expected with both filesystems? (in other words, are you just asking about different debug information getting printed to the terminal in different filesystems?)

If this is just a question about terminal debug output, I would first check the default log level for kernel logs on each filesystem, and then experiment with changing the default log level. There are lots of resources out there about doing that - one potentially useful link is this non-TI webpage Introduction to the Linux Kernel log levels.

Regards,

Nick

Hi,

USB not work with arago-base-tisdk-image-am335x-evm, no plug-in information prompt and data cannot be read.

Below is the log with arago-base-tisdk-image-am335x-evm：

[ 22.573840] am335x-phy-driver 47401300.usb-phy: using lookup tables for GPIO lookup
[ 22.573849] am335x-phy-driver 47401300.usb-phy: No GPIO consumer reset found
[ 22.573858] am335x-phy-driver 47401300.usb-phy: GPIO lookup for consumer vbus-detect
[ 22.573864] am335x-phy-driver 47401300.usb-phy: using device tree for GPIO lookup
[ 22.573880] of_get_named_gpiod_flags: can't parse 'vbus-detect-gpios' property of node '/ocp/usb@47400000/usb-phy@47401300[0]'
[ 22.573894] of_get_named_gpiod_flags: can't parse 'vbus-detect-gpio' property of node '/ocp/usb@47400000/usb-phy@47401300[0]'
[ 22.573902] am335x-phy-driver 47401300.usb-phy: using lookup tables for GPIO lookup
[ 22.573909] am335x-phy-driver 47401300.usb-phy: No GPIO consumer vbus-detect found
[ 22.574034] am335x-phy-driver 47401300.usb-phy: 47401300.usb-phy supply vcc not found, using dummy regulator
[ 22.645629] input: ti-tsc as /devices/platform/ocp/44e0d000.tscadc/TI-am335x-tsc.0.auto/input/input0
[ 22.702837] am335x-phy-driver 47401300.usb-phy: Linked as a consumer to regulator.0
[ 23.108968] usbcore: registered new interface driver usbfs
[ 23.202916] usbcore: registered new interface driver hub
[ 23.261219] usbcore: registered new device driver usb
[ 23.630205] musb-hdrc musb-hdrc.0: MUSB HDRC host driver
[ 23.730783] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 1
[ 23.850832] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 23.858133] usb usb1: Product: MUSB HDRC host driver
[ 23.955401] usb usb1: Manufacturer: Linux 4.19.94-gbe5389fd85 musb-hcd
[ 24.020327] usb usb1: SerialNumber: musb-hdrc.0
[ 24.055568] hub 1-0:1.0: USB hub found

Below is the log with tisdk-rootfs-image-am335x-evm

Hello Nancy,

Got it. I am reassigning this to our USB owner to comment.

Regards,

Nick

Hi Nancy,

Is the AM335x USB port in host or otg mode? The mode is defined by dr_mode property in kernel device tree.

If it is in "otg" mode, please provide the output of the command below for both cases.

root@am335x-evm:~# cat /sys/class/udc/musb-hdrc.0/uevent

Hi,

Thanks! There is no dr_mode defined in dts. And the usb can work now.

What does below log mean? Will it affect usage?

sd 0:0:0:0: [sda] Write Protect is off
[ 79.861614] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA

[ 78.335004] usb 1-1: New USB device found, idVendor=05e3, idProduct=0749, bcdDevice=15.35
[ 78.343361] usb 1-1: New USB device strings: Mfr=3, Product=4, SerialNumber=2
[ 78.353520] usb 1-1: Product: USB3.0 Card Reader
[ 78.358198] usb 1-1: Manufacturer: Generic
[ 78.365121] usb 1-1: SerialNumber: 000000001536
[ 78.432026] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 78.446284] scsi host0: usb-storage 1-1:1.0
[ 78.457608] usbcore: registered new interface driver usb-storage
[ 78.476455] usbcore: registered new interface driver uas
[ 79.522842] scsi 0:0:0:0: Direct-Access Generic MassStorageClass 1536 PQ: 0 ANSI: 6
[ 79.835726] sd 0:0:0:0: [sda] 62333952 512-byte logical blocks: (31.9 GB/29.7 GiB)
[ 79.844950] sd 0:0:0:0: [sda] Write Protect is off
[ 79.861614] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 79.885551] sda: sda1
[ 79.898068] sd 0:0:0:0: [sda] Attached SCSI removable disk