Re: OMAP support in mainline?

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On Thu, Sep 18, 2008 at 01:16:55PM +0200, ext Koen Kooi wrote:
>
> Op 18 sep 2008, om 11:55 heeft Felipe Balbi het volgende geschreven:
>
>> On Wed, Sep 17, 2008 at 03:23:49PM +0200, ext Koen Kooi wrote:
>>>
>>> Op 17 sep 2008, om 14:24 heeft Steve Sakoman het volgende geschreven:
>>>
>>>> On Wed, Sep 17, 2008 at 12:16 AM, Koen Kooi <k.kooi@xxxxxxxxxxxxxxxxxx>
>>>> wrote:
>>>>
>>>>> And they aren't working too well with current l-o git either with MUSB
>>>>> being
>>>>> broken. There's a patch to fix client mode, but host mode still isn't
>>>>> working.
>>>>
>>>> Host mode musb is working just fine on Overo with the "set
>>>> transceiver" patch.  Not sure why you are having trouble with Beagle
>>>> (and can't check since I don't have my Beagle board with me at the
>>>> moment)
>>>
>>> I should clarify: OTG mode with a host cable doesn't work in .27rc, it 
>>> does
>>> work in 2.6.26. I haven't tried specifying pure hostmode, only OTG.
>>> I would try it on the evm as well, but that is having serious irq issues
>>> with .27rc, pressing a key on the keypad triggers an irq overrun, 
>>> ethernet
>>> gives an oops on boot when trying to register and irq etc,etc. 2.6.27 is
>>> looking really, really bad on omap3 at the moment.
>>
>> Yeah, we lost some musb history when it went to mainline. I didn't test
>> this patch yet cuz I've been quite busy at work, but it should make
>> beagle work. Could you tell me if makes it work ?
>>
>> diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
>> index 9d2dcb1..f7fe91e 100644
>> --- a/drivers/usb/musb/omap2430.c
>> +++ b/drivers/usb/musb/omap2430.c
>> @@ -215,12 +215,14 @@ void musb_platform_set_mode(struct musb *musb, u8 
>> musb_mode)
>>
>> int __init musb_platform_init(struct musb *musb)
>> {
>> +       struct otg_transceiver *xceiv = otg_get_transceiver();
>>        u32 l;
>>
>> #if defined(CONFIG_ARCH_OMAP2430)
>>        omap_cfg_reg(AE5_2430_USB0HS_STP);
>> #endif
>>
>> +       memcpy(musb->xceiv, xceiv, sizeof(*xceiv));
>>        musb_platform_resume(musb);
>>
>>        l = omap_readl(OTG_SYSCONFIG);
>>
>
> That looks like 
> http://gitweb.openembedded.net/?p=org.openembedded.dev.git;a=blob;f=packages/linux/linux-omap/musb-mru-otgfix.diff;h=767858b8b1580ed7cd67d8e7627301600dda111c;hb=d733dd05e030a67dfbf4540fa1a041adccbe4ffc 
> which doesn't work for me :(

I got a report from another beagle user that this patch of mine is helping.
Well, if I have extra time I'll try it out on my 3430sdp and beagle ;-)

> And, no, I'm not going to try omapzoom stuff, I want it working on the 
> canonical linux-omap kernel, not some corporate version with god knows how 
> many hacks.

That was just a suggestion. We're just trying to narrow down the issues.
If it works with omapzoom.org, then we just diff both drivers and get
the fix to l-o as well ;-)

-- 
balbi
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