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Difference between revisions of "DESK-MX6UL-L/Peripherals/USB Host"

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m (U0007 moved page DESK-MX6UL-L/Pheripherals/USB Host to DESK-MX6UL-L/Peripherals/USB Host without leaving a redirect)
 
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! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |DESK-MX6UL-L 4.0.0 release
 
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==Peripheral USB Host ==
 
==Peripheral USB Host ==
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<pre class="workstation-terminal">
 
<pre class="workstation-terminal">
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root@desk-mx6ul-axelulite:~# [  564.193377] usb 1-1: new high-speed USB device number 2 using ci_hdrc
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[  199.668004] usb 1-1: new high-speed USB device number 2 using ci_hdrc
−
[  564.435616] usb 1-1: New USB device found, idVendor=0951, idProduct=1665
+
[  199.876433] usb 1-1: New USB device found, idVendor=13fe, idProduct=6700, bcdDevice= 1.10
−
[  564.442457] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
+
[  199.876545] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
−
[  564.457846] usb 1-1: Product: DataTraveler 2.0
+
[  199.876604] usb 1-1: Product: USB DISK 3.0
−
[  564.462455] usb 1-1: Manufacturer: Kingston
+
[  199.876647] usb 1-1: Manufacturer: Wilk
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[  564.474290] usb 1-1: SerialNumber: 50E549C202681071F97202CB
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[  199.876690] usb 1-1: SerialNumber: 07012533C2BE5935
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[  564.488603] usb-storage 1-1:1.0: USB Mass Storage device detected
+
[  199.897372] usb-storage 1-1:1.0: USB Mass Storage device detected
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[  564.508986] scsi host0: usb-storage 1-1:1.0
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[  199.918075] scsi host0: usb-storage 1-1:1.0
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[  565.526470] scsi 0:0:0:0: Direct-Access    Kingston DataTraveler 2.0 0000 PQ: 0 ANSI: 4
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[  200.961571] scsi 0:0:0:0: Direct-Access    Wilk    USB DISK 3.0     PMAP PQ: 0 ANSI: 6
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[  565.555313] sd 0:0:0:0: [sda] 15151168 512-byte logical blocks: (7.76 GB/7.22 GiB)
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[  200.976402] sd 0:0:0:0: [sda] 60628992 512-byte logical blocks: (31.0 GB/28.9 GiB)
−
[  565.583739] sd 0:0:0:0: [sda] Write Protect is off
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[  200.977682] sd 0:0:0:0: [sda] Write Protect is off
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[  565.599208] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
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[  200.977729] sd 0:0:0:0: [sda] Mode Sense: 45 00 00 00
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[  565.637032]  sda: sda1
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[  200.989604] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
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[  565.663492] sd 0:0:0:0: [sda] Attached SCSI removable disk
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[  201.200618]  sda: sda1 sda2
−
 
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[  201.214974] sd 0:0:0:0: [sda] Attached SCSI removable disk
 
</pre>
 
</pre>
 
=== Additional information ===
 
=== Additional information ===
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<pre class="workstation-terminal">
 
<pre class="workstation-terminal">
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root@desk-mx6ul-axelulite:~# mkdir -p /mnt/usb
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root@desk-mx6ul-axelulite:~# mkdir -p /mnt/usbApr
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root@desk-mx6ul-axelulite:~# mount /dev/sda1 /mnt/usb
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root@desk-mx6ul-axelulite:~# mount /dev/sda1 /mnt/usb/
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[  640.717947] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
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root@desk-mx6ul-axelulite:~# ls -la /mnt/usb/
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root@desk-mx6ul-axelulite:~# ls -la /mnt/usb
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total 24
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total 6756
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drwxr-xr-x 3 root root   4096 Apr 1 14:16 .
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drwxr-xr-x 3 root root   16384 Jan  1 1970 .
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drwxr-xr-x 4 root root    4096 Apr 3 18:15 ..
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drwxr-xr-x 4 root root    4096 Oct  7 16:33 ..
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drwx------ 2 root root  16384 Apr 3 14:16 lost+found
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drwxr-xr-x 2 root root  16384 Feb 26  2020 System Volume Information
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-rwxr-xr-x 1 root root 6881192 Apr 3 14:16 uImage
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-rwxr-xr-x 1 root root 6881192 Mar 31  2020 uImage-4.14.98-xelk-5.0.0-rc2+gb0960b6
 
−
root@desk-mx6ul-axelulite:~#
 
 
</pre>
 
</pre>
 
----
 
----
  
 
[[Category:AXEL ULite]]
 
[[Category:AXEL ULite]]

Latest revision as of 18:02, 11 January 2024

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History
Issue Date Notes

2021/07/20

First DESK release

2022/03/16

DESK-MX6UL-L 3.0.0 release
2023/05/04 DESK-MX6UL-L 4.0.0 release


Contents

Peripheral USB HostEdit

The USB Host port requires to configure the USB VBUS regulator and the gpio used for enabling the 5V USB power switch.

Device tree configurationEdit

Here below an example of device tree configuration used on standard DAVE's kit for the AXEL ULite SOM:

From imx6ul-axelulite-cb003a.dts: 

        reg_usb_otg1_vbus: regulator@2 {
                compatible = "regulator-fixed";
                reg = <2>;
                pinctrl-names = "default";
                pinctrl-0 = <&pinctrl_usb_otg1>;
                regulator-name = "usb_otg1_vbus";
                regulator-min-microvolt = <5000000>;
                regulator-max-microvolt = <5000000>;
                gpio = <&gpio1 18 GPIO_ACTIVE_HIGH>;
                enable-active-high;
        };
...
...
&usbotg1 {
        vbus-supply = <&reg_usb_otg1_vbus>;
        disable-over-current;
        dr_mode = "host";
        status = "okay";
};
...
...
&iomuxc {
        pinctrl-0 = <&pinctrl_hog_gpios>;
        imx6ul-axelulite {
...
...
                pinctrl_usb_otg1: usbotg1grp {
                        fsl,pins = <
                                MX6UL_PAD_UART1_CTS_B__GPIO1_IO18       0x10b0          /* HOST PWR */
                                MX6UL_PAD_GPIO1_IO03__GPIO1_IO03        0x10b0          /* HOST OC */
                        >;
                };
};


Accessing the peripheralEdit

Linux messages at boot timeEdit

When a USB peripheral is inserted, in the following example a memory mass storage device, the kernel recognizes the device (i.e. xlass, vendor id, product id, etc.) 

[  199.668004] usb 1-1: new high-speed USB device number 2 using ci_hdrc
[  199.876433] usb 1-1: New USB device found, idVendor=13fe, idProduct=6700, bcdDevice= 1.10
[  199.876545] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  199.876604] usb 1-1: Product: USB DISK 3.0
[  199.876647] usb 1-1: Manufacturer: Wilk
[  199.876690] usb 1-1: SerialNumber: 07012533C2BE5935
[  199.897372] usb-storage 1-1:1.0: USB Mass Storage device detected
[  199.918075] scsi host0: usb-storage 1-1:1.0
[  200.961571] scsi 0:0:0:0: Direct-Access     Wilk     USB DISK 3.0     PMAP PQ: 0 ANSI: 6
[  200.976402] sd 0:0:0:0: [sda] 60628992 512-byte logical blocks: (31.0 GB/28.9 GiB)
[  200.977682] sd 0:0:0:0: [sda] Write Protect is off
[  200.977729] sd 0:0:0:0: [sda] Mode Sense: 45 00 00 00
[  200.989604] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[  201.200618]  sda: sda1 sda2
[  201.214974] sd 0:0:0:0: [sda] Attached SCSI removable disk

Additional informationEdit

If the root file system configuration does not automatically mount the partition, it is possible to mount the device using the following command: 

root@desk-mx6ul-axelulite:~# mkdir -p /mnt/usbApr
root@desk-mx6ul-axelulite:~# mount /dev/sda1 /mnt/usb/
root@desk-mx6ul-axelulite:~# ls -la /mnt/usb/
total 24
drwxr-xr-x 3 root root    4096 Apr 1 14:16 .
drwxr-xr-x 4 root root    4096 Apr 3 18:15 ..
drwx------ 2 root root   16384 Apr 3 14:16 lost+found
-rwxr-xr-x 1 root root 6881192 Apr 3 14:16 uImage
HOME SOMs SBCs ToloMEO Embedded Assistant Sale-tag.pngGET A QUOTE Customer-service.pngONLINE HELPDESK
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