Re: [PATCH 00/23] twl4030 patches (v4)

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On Tue, Sep 30, 2008 at 10:37 AM, Felipe Balbi <me@xxxxxxxxxxxxxxx> wrote:
> On Tue, Sep 30, 2008 at 09:26:09AM -0700, Steve Sakoman wrote:
>> On Tue, Sep 30, 2008 at 6:05 AM, Tony Lindgren <tony@xxxxxxxxxxx> wrote:
>>
>> > Let's plan on applying these tomorrow unless there are more comments.
>>
>> I'm seeing some issues on Overo when applying these patches.
>>
>> On a cold boot everything proceeds normally (including devices being
>> enumerated on the musb channel) until the kernel attempts to mount the
>> rootfs from mmc.  At that point boot messages stop:
>>
>> mmc0: new high speed SD card at address 55ce
>> mmcblk0: mmc0:55ce SD02G 1921024KiB
>>  mmcblk0:<7>mmc0: starting CMD18 arg 00000000 flags 000000b5
>>  p1 p2
>>
>> At first I thought mmc support was broken and the system was hung.
>> But after a 10 - 20 second delay I noticed that approximately every 10
>> seconds I get the following message:
>>
>> musb_h_tx_flush_fifo 124: Could not flush host TX fifo: csr: 000a
>>
>> After a few cycles of this the boot continues and completes normally,
>> but the musb port is now non-functional.
>>
>> If I do a reboot command or press the reset button, the overo reboots
>> without the above delays or error messages, however the musb port is
>> non-functional.
>>
>> It seems that something has gone awry in the twl4030 usb section,
>> since I get a functional system without these patches.  Any
>> suggestions as to where I should begin looking to help debug this?
>
> remove the devices you have attached to musb port for now. musb
> shouldn't prevent these patches from being applied. As I said before,
> musb otg-host mode is not quite ok for omap3.
>
> I'm pretty sure we're gonna have a lot to patch in order to get it in
> good shape. A few patches are already coming from mainline btw.

I should have mentioned that these patches were applied to current top
of tree *plus* the 7 musb patches you have queued up on linux-usb
list.

Steve
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