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SubjectRe: [PATCH] ARM: OMAP4: clock: Initialize USB DPLL
On 10/09/2013 10:05 AM, Paul Walmsley wrote:
> 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?

No, this is already in with the typo fix. Thanks.

>
> 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?

cheers,
-roger


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