topic Re: Boot kernel and filesystem from u-boot-2013 in i.MX Processors

Boot kernel and filesystem from u-boot-2013

manjunathjoshi — Tue, 12 Apr 2016 04:08:44 GMT

Hello All,

I have configured the u-boot 2013.04 to detect USB at u-boot. I am getting the following logs,

U-Boot > usb start

(Re)start USB...

USB0: USB EHCI 1.00

scanning bus 0 for devices... 1 USB Device(s) found

scanning usb for storage devices... 0 Storage Device(s) found

scanning usb for ethernet devices... 0 Ethernet Device(s) found

Even though there is a USB i can't access it. Please let me know if anybody has had this issue and please reply ASAP.

The most important thing is this port is USB OTG.

Re: Boot kernel and filesystem from u-boot-2013

igorpadykov — Tue, 12 Apr 2016 04:23:57 GMT

Hi Manjunath

there are other commands which could be used, as:

usb start

fatls usb 0:1

fatload usb 0:1 0x80800000 filename

usb read 0x80800000 0 10

for details please refer to descriptions on p.22 document

http://cache.freescale.com/files/32bit/doc/quick_ref_guide/MEDIA5200UBPG/MEDIA5200UBPG.pdf

http://stackoverflow.com/questions/30488942/how-to-boot-linux-kernel-from-u-boot

Best regards

igor

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Re: Boot kernel and filesystem from u-boot-2013

manjunathjoshi — Tue, 12 Apr 2016 04:30:39 GMT

Hello igorpadykov,

If i do fatls usb 0:1 i am getting,

U-Boot > fatls usb 0:1

** Bad device usb 0 **

Meanwhile the USB is not blinking.

Re: Boot kernel and filesystem from u-boot-2013

igorpadykov — Tue, 12 Apr 2016 04:44:01 GMT

if usb otg is used please check that ID signal

is grounded.

~igor

Re: Boot kernel and filesystem from u-boot-2013

manjunathjoshi — Tue, 12 Apr 2016 05:04:01 GMT

Hello igorpadykov,

I am really sorry, but i didn't get what is ID signal ?

Regards,

Manju

Re: Boot kernel and filesystem from u-boot-2013

igorpadykov — Tue, 12 Apr 2016 06:23:00 GMT

Re: Boot kernel and filesystem from u-boot-2013

manjunathjoshi — Tue, 12 Apr 2016 12:35:52 GMT

Hello Igor,

Thanks for your replies. Now i am able to detect and boot from USB.

But only the first time usb is detected. Second time when it boots there is an error. Have you seen this error before,

First time:

U-Boot > usb start

(Re)start USB...

USB0: USB EHCI 1.00

scanning bus 0 for devices... 2 USB Device(s) found

USB1: USB EHCI 1.00

scanning bus 1 for devices... 2 USB Device(s) found

scanning usb for storage devices... EHCI timed out on TD - token=0x80008c80

EHCI timed out on TD - token=0x80008d80

error in inquiry

1 Storage Device(s) found

scanning usb for ethernet devices... 0 Ethernet Device(s) found

Second time:

U-Boot > usb start

(Re)start USB...

USB0: USB EHCI 1.00

scanning bus 0 for devices... 1 USB Device(s) found

USB1: USB EHCI 1.00

scanning bus 1 for devices... 1 USB Device(s) found

scanning usb for storage devices... 0 Storage Device(s) found

scanning usb for ethernet devices... 0 Ethernet Device(s) found

U-Boot > usb start

(Re)start USB...

USB0: USB EHCI 1.00

scanning bus 0 for devices... 1 USB Device(s) found

USB1: USB EHCI 1.00

scanning bus 1 for devices... 1 USB Device(s) found

scanning usb for storage devices... 0 Storage Device(s) found

scanning usb for ethernet devices... 0 Ethernet Device(s) found

Re: Boot kernel and filesystem from u-boot-2013

manjunathjoshi — Fri, 15 Apr 2016 06:00:35 GMT

Hello All,

I am consistently getting this ehci timeout error. I googled a lot and i found that this is a bug from u-boot. Is there any patch that solves this issue?

I can't migrate to newer version since u-boot has some other changes as well which would be time consuming.

Regards,

Manju

Re: Boot kernel and filesystem from u-boot-2013

igorpadykov — Fri, 15 Apr 2016 07:17:58 GMT

one can post it to uboot mail list

U-Boot Info Page

or use newer uboot versions

~igor

Re: Boot kernel and filesystem from u-boot-2013

manjunathjoshi — Thu, 21 Apr 2016 06:40:15 GMT

Hello Igor,

This issue is not solved.

I have tried using debug prints and below are the logs,

U-Boot > usb start

(Re)start USB...

USB0: USB EHCI 1.00

scanning bus 0 for devices... New Device 0

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x40

set address 1

usb_control_msg: request: 0x5, requesttype: 0x0, value 0x1 index 0x0 length 0x0

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x12

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x9

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x19

get_conf_no 0 Result 25, wLength 25

if 0, ep 0

##EP epmaxpacketin[1] = 8

set configuration 1

usb_control_msg: request: 0x9, requesttype: 0x0, value 0x1 index 0x0 length 0x0

new device strings: Mfr=1, Product=2, SerialNumber=0

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x300 index 0x0 length 0xFF

USB device number 1 default language ID 0x1

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x301 index 0x1 length 0xFF

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x302 index 0x1 length 0xFF

Manufacturer u-boot

Product EHCI Host Controller

SerialNumber

usb_control_msg: request: 0x6, requesttype: 0xA0, value 0x2900 index 0x0 length 0x4

usb_control_msg: request: 0x6, requesttype: 0xA0, value 0x2900 index 0x0 length 0x8

usb_control_msg: request: 0x0, requesttype: 0xA0, value 0x0 index 0x0 length 0x4

usb_control_msg: request: 0x3, requesttype: 0x23, value 0x8 index 0x1 length 0x0

usb_control_msg: request: 0x0, requesttype: 0xA3, value 0x0 index 0x1 length 0x4

usb_control_msg: request: 0x1, requesttype: 0x23, value 0x10 index 0x1 length 0x0

usb_control_msg: request: 0x3, requesttype: 0x23, value 0x4 index 0x1 length 0x0

usb_control_msg: request: 0x0, requesttype: 0xA3, value 0x0 index 0x1 length 0x4

usb_control_msg: request: 0x1, requesttype: 0x23, value 0x14 index 0x1 length 0x0

New Device 1

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x40

usb_control_msg: request: 0x3, requesttype: 0x23, value 0x4 index 0x1 length 0x0

usb_control_msg: request: 0x0, requesttype: 0xA3, value 0x0 index 0x1 length 0x4

usb_control_msg: request: 0x1, requesttype: 0x23, value 0x14 index 0x1 length 0x0

set address 2

usb_control_msg: request: 0x5, requesttype: 0x0, value 0x2 index 0x0 length 0x0

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x12

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x9

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x20

get_conf_no 0 Result 32, wLength 32

if 0, ep 0

if 0, ep 1

##EP epmaxpacketin[1] = 512

##EP epmaxpacketout[2] = 512

set configuration 1

usb_control_msg: request: 0x9, requesttype: 0x0, value 0x1 index 0x0 length 0x0

new device strings: Mfr=1, Product=2, SerialNumber=3

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x300 index 0x0 length 0xFF

USB device number 2 default language ID 0x409

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x301 index 0x409 length 0xFF

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x302 index 0x409 length 0xFF

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x303 index 0x409 length 0xFF

Manufacturer JetFlash

Product Mass Storage Device

SerialNumber 99TL2DWA1OQMAIUS

2 USB Device(s) found

USB1: USB EHCI 1.00

scanning bus 1 for devices... New Device 2

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x40

set address 3

usb_control_msg: request: 0x5, requesttype: 0x0, value 0x3 index 0x0 length 0x0

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x12

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x9

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x19

get_conf_no 0 Result 25, wLength 25

if 0, ep 0

##EP epmaxpacketin[1] = 8

set configuration 1

usb_control_msg: request: 0x9, requesttype: 0x0, value 0x1 index 0x0 length 0x0

new device strings: Mfr=1, Product=2, SerialNumber=0

usb_control_msg: request: 0x6, requesttype: 0x80, value 0x300 index 0x0 length 0xFF

USB device number 3 default language ID 0x1