DESK-RZ-L/Peripherals/USB
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Contents
Peripheral USB[edit | edit source]
Configuration[edit | edit source]
These peripheral(s) can only be used with the following ConfigID(s) (see the associated BOM):
| ConfigID | Note |
|---|---|
| 2002 | - |
| 2003 | - |
Device tree configuration[edit | edit source]
Below is an example of a device tree configuration used on a standard DAVE kit for the ZERO SOM Evaluation Kit.
From kernel device tree rzt2h-eb23-cb2003.dts:
...
&ohci {
memory-region = <&global_cma>;
dr_mode = "otg";
status = "okay";
};
&ehci {
memory-region = <&global_cma>;
dr_mode = "otg";
status = "okay";
};
&hsusb {
dr_mode = "otg";
status = "okay";
};
&usb2_phy {
status = "okay";
};
...
Accessing the peripheral[edit | edit source]
USB sticks can be connected using a micro-USB to USB Type-A adapter.
U-boot[edit | edit source]
=> usb start
starting USB...
Bus usb@92040100: USB EHCI 1.10
scanning bus usb@92040100 for devices... 2 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
=> ls usb 0:1
System Volume Information/
1965792 test.txt
1 file(s), 1 dir(s)
Linux[edit | edit source]
[ 42.318331] usb 1-1: new high-speed USB device number 2 using ehci-platform [ 42.477574] usb-storage 1-1:1.0: USB Mass Storage device detected [ 42.478517] scsi host0: usb-storage 1-1:1.0 [ 43.896128] scsi 0:0:0:0: Direct-Access ADATA USB Flash Drive 1100 PQ: 0 ANSI: 0 CCS [ 43.897102] sd 0:0:0:0: [sda] 7913472 512-byte logical blocks: (4.05 GB/3.77 GiB) [ 43.897834] sd 0:0:0:0: [sda] Write Protect is off [ 43.897843] sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00 [ 43.898597] sd 0:0:0:0: [sda] No Caching mode page found [ 43.898606] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 43.922599] sda: sda1 [ 43.925463] sd 0:0:0:0: [sda] Attached SCSI removable disk
