Messages in this thread | | | Date | Wed, 9 Oct 2013 07:05:16 +0000 (UTC) | From | Paul Walmsley <> | Subject | Re: [PATCH] ARM: OMAP4: clock: Initialize USB DPLL |
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Hi Roger,
On Thu, 21 Mar 2013, Roger Quadros wrote:
> +Paul > > On 03/21/2013 03:48 PM, Roger Quadros wrote: > > If the bootloader doesn't configure USB DPLL (e.g. in u-boot, > > disable CONFIG_USB_EHCI_OMAP), then we get all sorts of problems > > like > > - division by zero errors at boot [1] > > - USB DPLL fails to enter locked state > > - USB EHCI Host is non functional > > - Device can't enter OFF mode > > > > Initializing the USB DPLL fixes all these issues.
Looks like I may have lost track of this - do we still need this one?
Also:
> > diff --git a/arch/arm/mach-omap2/cclock44xx_data.c b/arch/arm/mach-omap2/cclock44xx_data.c > > index bfc46c1..6127bb9 100644 > > --- a/arch/arm/mach-omap2/cclock44xx_data.c > > +++ b/arch/arm/mach-omap2/cclock44xx_data.c > > @@ -53,6 +53,12 @@ > > */ > > #define OMAP4_DPLL_ABE_DEFFREQ 98304000 > > > > +/* > > + * OMAP4450 TRM Rev X, section "3.6.3.9.5 DPLL_USB Preferred Settings"
4450?
- Paul
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