Sebastian,
On Mon, Jul 29, 2013 at 12:51 PM, Sebastian Andrzej Siewior
wrote:
> On 07/29/2013 07:26 PM, Bin Liu wrote:
>> Sebastian,
>
> Hi Bin,
>
>> I did not say AM335xEVM is not able to run OTG mode. The problem is in
>> OTG mode the SESSION bit will be cleared once the device is unplugged,
>>
On 07/29/2013 07:26 PM, Bin Liu wrote:
> Sebastian,
Hi Bin,
> I did not say AM335xEVM is not able to run OTG mode. The problem is in
> OTG mode the SESSION bit will be cleared once the device is unplugged,
> then there is no way the SESSION bit will come back in the current
> mainline kernel.
Ye
Sebastian,
On Mon, Jul 29, 2013 at 11:53 AM, Sebastian Andrzej Siewior
wrote:
> So you say, am335x-evm is not able to run OTG mode and may only run in
> host mode and as a consequence it must not call musb_platform_try_idle()
> because it throws that one bit away and there is no way to bring it b
* Bin Liu | 2013-07-26 22:07:14 [-0500]:
>Sebastian,
Hi Bin,
>I have not tested it yet, but I believe I found why host mode works on
>TI 3.2 kernel but not on mainline. Please look at Line 786 in 3.2
>kernel musb_core.c [1].
>
>773 if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_dis
Sebastian,
On Fri, Jul 26, 2013 at 3:35 PM, Sebastian Andrzej Siewior
wrote:
>> My build server is down this afternoon. Once it comes back next week,
>> I will try 3.8 again, to see how I can help on this USB1 host mode
>> issue. its devctl register should stay on 0x19 even nothing is
>> connecte
On 07/26/2013 10:15 PM, Bin Liu wrote:
> Sebastian,
Hi Bin,
> I started thinking when I tried this git.ti.com 3.8 kernel, I might
> have done 'devmem2 0x47401c60 b 0x81' to manually set the SESSION bit
> after plugged a device. It was months ago, I don't quite remember what
> I tested.
Ah. You c
Sebastian,
On Fri, Jul 26, 2013 at 2:55 PM, Sebastian Andrzej Siewior
wrote:
> The bit is removed in otg_timer() because the phy gets into
> OTG_STATE_A_WAIT_BCON.
>
> Now, this is current HEAD + my stuff to get second port working. I
> downloaded v3.2 and browsed as I was looking for the workaro
On 07/26/2013 08:29 PM, Bin Liu wrote:
Hi Bin,
>> [ 97.570852] musb-hdrc musb-hdrc.1.auto: Poll devctl 19 (a_wait_bcon)
> I don't think you are testing with the 3.2 kernel you referred from
> the ti.com link you mentioned above.
> 3.2 kernel should have no '.auto' at the end of the device name.
Sebastian,
On Fri, Jul 26, 2013 at 1:22 PM, Sebastian Andrzej Siewior
wrote:
> On 07/26/2013 08:17 PM, Bin Liu wrote:
>
> Hi Bin.
>
>>> In TI 3.2 kernel, the otg_timer() toggles the SESSION bit in
>>> OTG_STATE_B_IDLE state. So whenever the ID pin is grounded by
>>> connecting a device, the contr
On 07/26/2013 08:17 PM, Bin Liu wrote:
Hi Bin.
>> In TI 3.2 kernel, the otg_timer() toggles the SESSION bit in
>> OTG_STATE_B_IDLE state. So whenever the ID pin is grounded by
>> connecting a device, the controller will try go into host mode.
>> But I have no idea why your board is in a_idle not
On Fri, Jul 26, 2013 at 12:53 PM, Bin Liu wrote:
> Sebastian,
>
> On Fri, Jul 26, 2013 at 11:31 AM, Sebastian Andrzej Siewior
> wrote:
>> * Bin Liu | 2013-07-23 13:55:27 [-0500]:
>>
>>>Hi Sebastian,
>> Hi Bin,
>>
>>>either by SRP or HNP, or something else. In TI 3.2 kernel, there is
>>>workaround
Sebastian,
On Fri, Jul 26, 2013 at 11:31 AM, Sebastian Andrzej Siewior
wrote:
> * Bin Liu | 2013-07-23 13:55:27 [-0500]:
>
>>Hi Sebastian,
> Hi Bin,
>
>>either by SRP or HNP, or something else. In TI 3.2 kernel, there is
>>workaround in otg_timer() to _toggle_ the SESSION bit to detect if ID
>>pi
* Bin Liu | 2013-07-23 13:55:27 [-0500]:
>Hi Sebastian,
Hi Bin,
>either by SRP or HNP, or something else. In TI 3.2 kernel, there is
>workaround in otg_timer() to _toggle_ the SESSION bit to detect if ID
>pin is grounded, which means a USB device is connected.
I've been looking at
http://downl
* Bin Liu | 2013-07-23 13:55:27 [-0500]:
>Hi Sebastian,
Hi Bin,
>> In my testing the bit remains set. How is the bit supposed to come back
>> after I connect a host device?
>The bit remains even when no device is plugged and ID ping is float?
After I set it, it remains set yes.
>what platform do
Hi Sebastian,
On Tue, Jul 23, 2013 at 12:31 PM, Sebastian Andrzej Siewior
wrote:
>
> On 07/23/2013 07:28 PM, Bin Liu wrote:
> > Hi,
>
> Hi,
>
> >
> > On Mon, Jul 22, 2013 at 1:10 PM, Sebastian Andrzej Siewior
> > mailto:bige...@linutronix.de>> wrote:
> >
> > This patch adds the MUSB_DEVCTL_SE
On 07/23/2013 07:28 PM, Bin Liu wrote:
> Hi,
Hi,
>
> On Mon, Jul 22, 2013 at 1:10 PM, Sebastian Andrzej Siewior
> mailto:bige...@linutronix.de>> wrote:
>
> This patch adds the MUSB_DEVCTL_SESSION back after it has been removed.
> If it is missing then the host session is not recognized.
This patch adds the MUSB_DEVCTL_SESSION back after it has been removed.
If it is missing then the host session is not recognized. This bit is
added initially added in musb_start() and removed after the first device
disconnect.
Signed-off-by: Sebastian Andrzej Siewior
---
drivers/usb/musb/musb_ds
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