> -----Original Message-----
> From: Cousson, Benoit
> Sent: Tuesday, February 15, 2011 6:18 PM
> To: Premi, Sanjeev
> Cc: [email protected]
> Subject: Re: hwmod: multi-omap: disabling smartreflex on AM3517
>
> Hi Sanjeev,
>
> On 2/15/2011 12:51 PM, Premi, Sanjeev wrote:
> > AM3517 doesn't support SmartReflex.
> >
> > However, these HWMODS are defined in omap3xxxx_hwmods[]:
> > &omap34xx_sr1_hwmod,
> > &omap34xx_sr2_hwmod,
> > &omap36xx_sr1_hwmod,
> > &omap36xx_sr2_hwmod,
> >
> > (similar definition in l4_slaves as well)
> >
> > This leads to crash when booting the kernel on AM3517EVM during
> > _setup().
> >
> > I see the field .omap_chip being initialized; but not used.
>
> Yes, it is. During the hwmod initialization (omap_hwmod_init), only the
> hwmods that match the correct chip version are kept.
> I guess that your problem is that AM3517 is probably seen as a regular
> 3430 for the moment.
>
> > If I were to use this - along with cpu_is_omap3517(), I would need
> > to define a new flag e.g. CHIP_IS_AM3517 and add it to almost all
> > devices defined in omap_hwmod_3xxx_data.c.
> >
> > Before going all out on making changes, wanted to check if there is
> > a better way. Has this/similar possibility been considered earlier?
>
> Well, this is the best way to do that for my point of view. This
> .omap_chip field was done for that purpose.
> During device init, the sr code will do query for the smartreflex hwmod
> and will failed, thus avoiding to do further initialization.
[sp] Trying to avoid big change, and thinking 'narrowly' about this
issue in isolation, I had been mulling adding SmartReflex to
the omap3_features; and (somehow) using the same.
But after noticing the patch related to USBOTG on AM35x, I think
original proposal is unambiguous and best way forward.
Started working on the patch. Hope to have it ready later tonight
or tomorrow.
~sanjeev
>
> Regards,
> Benoit
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