Using Cypress EZ-Host on ML403/5

Using Cypress EZ-Host on ML403/5

[Peter Mendham]

Dear all,

Has anyone had the Cypress EZ-Host chip working as a USB host under 
Linux?  It's the one that comes fitted as standard to ML403 and ML405 
boards (probably other Xilinx boards too).  If not, can anyone tell me 
where I should start?  Any advice at all?  Our own embedded device needs 
to have USB host support and we are using an ML40x for development so 
the EZ-Host is the preferred solution as we can prototype it.

Thanks in advance,
--Peter


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Re: Using Cypress EZ-Host on ML403/5

[Grant Likely]

On 4/16/07, Peter Mendham <petermendham@computing.dundee.ac.uk> wrote:
> Dear all,
>
> Has anyone had the Cypress EZ-Host chip working as a USB host under
> Linux?  It's the one that comes fitted as standard to ML403 and ML405
> boards (probably other Xilinx boards too).  If not, can anyone tell me
> where I should start?  Any advice at all?  Our own embedded device needs
> to have USB host support and we are using an ML40x for development so
> the EZ-Host is the preferred solution as we can prototype it.
>
> Thanks in advance,
> --Peter

It's on my task list to get working.  I could certainly use some help.

Xilinx did distrubute some driver code for that host controller a
while back.  I've got a copy of it somewhere.  I'll try to dig it up
today and let you know where you can get it.

Cheers,
g.

-- 
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195

Re: Using Cypress EZ-Host on ML403/5

[Peter Korsgaard]

>>>>> "Grant" == Grant Likely <grant.likely@secretlab.ca> writes:

Hi,

>> Has anyone had the Cypress EZ-Host chip working as a USB host under
>> Linux?  It's the one that comes fitted as standard to ML403 and
>> ML405 boards (probably other Xilinx boards too).  If not, can
>> anyone tell me where I should start?  Any advice at all?  Our own
>> embedded device needs to have USB host support and we are using an
>> ML40x for development so the EZ-Host is the preferred solution as
>> we can prototype it.

Grant> It's on my task list to get working.  I could certainly use
Grant> some help.

I have written a 2.6 USB host driver for the Cypress
EZ-Host/EZ-Otg. It's basically working, but needs a bit more
cleanup. I hope to be able to submit it next week.

-- 
Bye, Peter Korsgaard

Re: Using Cypress EZ-Host on ML403/5

[Grant Likely]

On 4/19/07, Peter Korsgaard <peter.korsgaard@barco.com> wrote:
> >>>>> "Grant" == Grant Likely <grant.likely@secretlab.ca> writes:
> Grant> It's on my task list to get working.  I could certainly use
> Grant> some help.
>
> I have written a 2.6 USB host driver for the Cypress
> EZ-Host/EZ-Otg. It's basically working, but needs a bit more
> cleanup. I hope to be able to submit it next week.

Very cool; any chance I could get a pre-release copy.  :-)

g.

-- 
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195

Re: Using Cypress EZ-Host on ML403/5

[Peter Mendham]

Peter Korsgaard wrote:
>>> Has anyone had the Cypress EZ-Host chip working as a USB host under
>>> Linux?  It's the one that comes fitted as standard to ML403 and
>>> ML405 boards (probably other Xilinx boards too).  If not, can
>>> anyone tell me where I should start?  Any advice at all?  Our own
>>> embedded device needs to have USB host support and we are using an
>>> ML40x for development so the EZ-Host is the preferred solution as
>>> we can prototype it.
>>>       
> Grant> It's on my task list to get working.  I could certainly use
> Grant> some help.
>
> I have written a 2.6 USB host driver for the Cypress
> EZ-Host/EZ-Otg. It's basically working, but needs a bit more
> cleanup. I hope to be able to submit it next week.
>   
Peter,

Are you any further forward with this?  Is there anything I could see 
(however pre-release)?  Is there anything I can do to help?

Many thanks,
-- Peter


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Re: Using Cypress EZ-Host on ML403/5

[Peter Korsgaard]

>>>>> "PM" == Peter Mendham <petermendham@computing.dundee.ac.uk> writes:

Hi,

>> I have written a 2.6 USB host driver for the Cypress
>> EZ-Host/EZ-Otg. It's basically working, but needs a bit more
>> cleanup. I hope to be able to submit it next week.

PM> Are you any further forward with this?  Is there anything I could
PM> see (however pre-release)?  Is there anything I can do to help?

I posted the driver to the usb list last week:

http://thread.gmane.org/gmane.linux.usb.devel/53285

It would be nice if you could give it a try and tell me if it works
for you.

-- 
Bye, Peter Korsgaard

Re: Using Cypress EZ-Host on ML403/5

[Grant Likely]

On 4/30/07, Grant Likely <grant.likely@secretlab.ca> wrote:
> On 4/27/07, Peter Korsgaard <jacmet@sunsite.dk> wrote:
> > On 4/24/07, Grant Likely <grant.likely@secretlab.ca> wrote:
> >
> > > > Anyway, here it is. It is structured as a base driver with
> > > > configurable host/peripheral support on top. The host part works
> > > > pretty ok, but the scheduling code can still be improved. Please
> > > > ignore the peripheral part for now.
> > >
> > > Awesome, thank you!  I'll try it out ASAP.
> >
> > Did you have a chance to try it out yet?

Hey Peter,

I've got it running on my board now after figuring out how to wire up
external interrupts in EDK.  :-)

Good success with keyboards and mice.  Events come through no problem.

Some block devices seem to be giving me grief.  I have no problem with
my SanDisk ImageMate CF reader.  However, I've got a SanDisk Curzer
Micro that gets reset during transfers.  Is this something you've seen
before?  Log output is below.

I've also got a QuickCam Messinger that I'm going to test isochronos
transfers with as well.

Cheers,
g.

/mnt #
/mnt # [ 2358.173508] usb 1-1.1: new full speed USB device using
c67x00 and address 15
[ 2358.309263] usb 1-1.1: configuration #1 chosen from 1 choice
[ 2358.318978] scsi4 : SCSI emulation for USB Mass Storage devices
[ 2358.328546] usb-storage: device found at 15
[ 2358.332860] usb-storage: waiting for device to settle before scanning
[ 2363.348145] scsi 4:0:0:0: Direct-Access     SanDisk  U3 Cruzer
Micro  2.18 PQ: 0 ANSI: 2
[ 2363.367956] SCSI device sda: 990865 512-byte hdwr sectors (507 MB)
[ 2363.379943] sda: Write Protect is off
[ 2363.383721] sda: Mode Sense: 03 00 00 00
[ 2363.387701] sda: assuming drive cache: write through
[ 2363.416940] SCSI device sda: 990865 512-byte hdwr sectors (507 MB)
[ 2363.428944] sda: Write Protect is off
[ 2363.432709] sda: Mode Sense: 03 00 00 00
[ 2363.436691] sda: assuming drive cache: write through
[ 2363.441730]  sda: sda1
[ 2363.465064] sd 4:0:0:0: Attached scsi removable disk sda
[ 2363.475029] usb-storage: device scan complete

/mnt #
/mnt # dd if=/dev/sda of=/dev/null bs=512 count=2048
[ 2390.851453] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2391.091406] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2391.331377] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2391.571349] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2391.811317] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2392.051286] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2392.173340] sd 4:0:0:0: SCSI error: return code = 0x00070000
[ 2392.179076] end_request: I/O error, dev sda, sector 0
[ 2392.184169] Buffer I/O error on device sda, logical block 0
[ 2392.189797] Buffer I/O error on device sda, logical block 1
[ 2392.195419] Buffer I/O error on device sda, logical block 2
[ 2392.201046] Buffer I/O error on device sda, logical block 3
[ 2392.206667] Buffer I/O error on device sda, logical block 4
[ 2392.212290] Buffer I/O error on device sda, logical block 5
[ 2392.217917] Buffer I/O error on device sda, logical block 6
[ 2392.223537] Buffer I/O error on device sda, logical block 7
[ 2392.229179] Buffer I/O error on device sda, logical block 8
[ 2392.234804] Buffer I/O error on device sda, logical block 9
[ 2392.331253] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2392.543226] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2392.755200] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2392.967174] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2393.179147] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2393.391121] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2393.513110] sd 4:0:0:0: SCSI error: return code = 0x00070000
[ 2393.518840] end_request: I/O error, dev sda, sector 0
dd: /dev/sda: Input/output error
/mnt # time dd if=/dev/sda of=/dev/null bs=512 count=2048
[ 2442.613020] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2442.852988] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2443.092959] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2443.332929] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2443.572902] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2443.812869] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2443.934899] sd 4:0:0:0: SCSI error: return code = 0x00070000
[ 2443.940624] end_request: I/O error, dev sda, sector 0
[ 2443.945717] printk: 30 messages suppressed.
[ 2443.949940] Buffer I/O error on device sda, logical block 0
[ 2443.955565] Buffer I/O error on device sda, logical block 1
[ 2443.961190] Buffer I/O error on device sda, logical block 2
[ 2443.966817] Buffer I/O error on device sda, logical block 3
[ 2443.972437] Buffer I/O error on device sda, logical block 4
[ 2443.978061] Buffer I/O error on device sda, logical block 5
[ 2443.983688] Buffer I/O error on device sda, logical block 6
[ 2443.989309] Buffer I/O error on device sda, logical block 7
[ 2443.994952] Buffer I/O error on device sda, logical block 8
[ 2444.000576] Buffer I/O error on device sda, logical block 9
[ 2444.096835] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2444.308808] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2444.520781] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2444.732771] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2444.944730] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2445.156704] usb 1-1.1: reset full speed USB device using c67x00 and
address 15
[ 2445.278663] sd 4:0:0:0: SCSI error: return code = 0x00070000
[ 2445.284390] end_request: I/O error, dev sda, sector 0
dd: /dev/sda: Input/output error
Command exited with non-zero status 1
real    0m 2.81s
user    0m 0.00s
sys     0m 0.02s
/mnt #

-- 
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195

Re: Using Cypress EZ-Host on ML403/5

[Peter Korsgaard]

>>>>> "Grant" == Grant Likely <grant.likely@secretlab.ca> writes:

Hi,

 >> > Did you have a chance to try it out yet?

 Grant> Hey Peter,

 Grant> I've got it running on my board now after figuring out how to wire up
 Grant> external interrupts in EDK.  :-)

 Grant> Good success with keyboards and mice.  Events come through no problem.

Great!

 Grant> Some block devices seem to be giving me grief.  I have no problem with
 Grant> my SanDisk ImageMate CF reader.  However, I've got a SanDisk Curzer
 Grant> Micro that gets reset during transfers.  Is this something you've seen
 Grant> before?  Log output is below.

Yeah, I've also had quite varied success with USB sticks - Some work
just fine, others not at all. I'm still trying to figure out what goes
wrong..

 Grant> I've also got a QuickCam Messinger that I'm going to test isochronos
 Grant> transfers with as well.

Ok. I've had a webcam and USB audio devices working OK. Isochronos
transfers are the most tricky ones to implement though, so don't
expect wonders (E.G. I get audio stutter if I do a lot of bulk
tranfers at the same time).

Thanks for the feedback!

-- 
Bye, Peter Korsgaard

Re: Using Cypress EZ-Host on ML403/5

[Grant Likely]

On 5/2/07, Peter Korsgaard <jacmet@sunsite.dk> wrote:
> Thanks for the feedback!

No problem.  I'll keep hacking on it here and keep you up-to-date on
my progress.

Cheers,
g.

-- 
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195

Re: Using Cypress EZ-Host on ML403/5

[Grant Likely]

On 5/22/07, Peter Luan <peterluan@truebroad.com> wrote:
>
>
>
>
> Hey Grant, >>I've got it running on my board now after figuring out how to
> wire up external interrupts in EDK.  :-)
>
>
> (http://ozlabs.org/pipermail/linuxppc-embedded/2007-May/026965.html)
>
> What do you mean? I've patched my linux kernel-2.6.22-rc1 according to the
> followings:
>
> http://thread.gmane.org/gmane.linux.usb.devel/53285
>
> and I compiled the kernel successfully, but my usb can't work very well.
> Could you tell me what I should do to make it work very well on my ml403
> board.

I'm sorry, I really don't understand what you're having a problem
with.  You need to provide a lot more detail about what you've done
and what does not work.

Also, please cc the mailing list when asking for help.  It's the
polite thing to do and there are more people than me who can help you.

Cheers,
g.


-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195

Re: Using Cypress EZ-Host on ML403/5

[Peter Luan]

[-- Attachment #1: Type: text/plain, Size: 2088 bytes --]

Hi First of all, I'm a beginner, so my questions may be funny .... sorry for
that. 

Any how your ideas are very valuable for me. I'm going to have the usb work
on ML403.

I have two questions about the usb on ml403 board.

 

1) In EDK9.1i, we can use the wizard to build a new design with usb. But I
found it's different from the reference design that xilinx provided for
edk8.1i. So which design should I choose? In datasheet of opb_epc, I found
that we should add the irq manually. So I added the irq and reset according
to xapp925. After that, I patched my linux kernel using the patch by Peter
Korsgaard. But when I pluged in the usb camera, it can't probe it. What
should I do additionally?

 

2) I can't find where to initialize the base registers and irq in the usb
driver for cy7c67300 provided by Peter Korsgaard. In the function
usb_c67x00_drv_probe, I found it called platform_get_resource(pdev,
IORESOURCE_MEM, 0). So I think I should add some register codes for usb like
uartlite or temac in virtex.c. I added the following codes:

 #ifdef XPAR_USB_0_BASEADDR

      [VIRTEX_USB_0] = {

           .name = "xilix_usb",

           .id = 0,

           .num_resource = 2,

           .resource = (struct resource[]) {

                 {

                      .start  = XPAR_USB_0_BASEADDR,

                      .end    = XPAR_USB_0_HIGHADDR,

                      .flags  = IORESOURCE_MEM,

                 },

                 {

                      .start  = XPAR_INTC_0_USB_0_VEC_ID,

                      .end    = XPAR_INTC_0_USB_0_VEC_ID,

                      .flags  = IORESOURCE_IRQ,

                 }

           }

      },

#endif

 

and define the following macro in xparameters_ml403.h.

 

#define XPAR_INTC_0_USB_0_VEC_ID XPAR_OPB_INTC_0_SYSTEM_USB_HPI_INT_INTR

#define XPAR_USB_0_BASEADDR XPAR_CYPRESS_USB_PRH0_BASEADDR

#define XPAR_USB_0_HIGHADDR XPAR_CYPRESS_USB_PRH0_HIGHADDR

 

After that, it still can't prob the usb device. So could you give me some
suggestion about making usb work on ml403?

 

Thank you very much!

 

Peter Luan


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Re: Using Cypress EZ-Host on ML403/5

[Grant Likely]

On 5/2/07, Peter Korsgaard <jacmet@sunsite.dk> wrote:
> >>>>> "Grant" == Grant Likely <grant.likely@secretlab.ca> writes:
>
>  Grant> Some block devices seem to be giving me grief.  I have no problem with
>  Grant> my SanDisk ImageMate CF reader.  However, I've got a SanDisk Curzer
>  Grant> Micro that gets reset during transfers.  Is this something you've seen
>  Grant> before?  Log output is below.
>
> Yeah, I've also had quite varied success with USB sticks - Some work
> just fine, others not at all. I'm still trying to figure out what goes
> wrong..

I think I've solved this problem.  The driver wasn't checking the
active flag on TDs in check_td_list().  If the c67x00 ran out of time
in a frame, not all the TDs would get processed.  Without this check
the HCD would interpret unprocessed TDs as successfully completed.

I've also got a fair number of comments/changes on the driver in patch
form.  I'll send it to the list shortly.

Cheers,
g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195

Re: Using Cypress EZ-Host on ML403/5

[Peter Korsgaard]

>>>>> "Grant" == Grant Likely <grant.likely@secretlab.ca> writes:

Hi,

 >> Yeah, I've also had quite varied success with USB sticks - Some work
 >> just fine, others not at all. I'm still trying to figure out what goes
 >> wrong..

 Grant> I think I've solved this problem.  The driver wasn't checking the
 Grant> active flag on TDs in check_td_list().  If the c67x00 ran out of time
 Grant> in a frame, not all the TDs would get processed.  Without this check
 Grant> the HCD would interpret unprocessed TDs as successfully completed.

Ahh - Good catch!

 Grant> I've also got a fair number of comments/changes on the driver in patch
 Grant> form.  I'll send it to the list shortly.

Great, I'm looking forward to seeing it!

-- 
Bye, Peter Korsgaard