Off-button reaction time just temporary?

kyak bas at bmail.ru
Sat Aug 20 12:25:43 EDT 2011


Make sure to include it in your startup scripts, otherwise it will work 
only once!

On Sat, 20 Aug 2011, Cristian Paul Peñaranda Rojas wrote:

> I noticed the On button time increase again as usual
> if you wait some minutes to power on the ben again.
>
> Can someone confirm this?
>
>
> On Sat, Aug 20, 2011 at 01:32:40PM +0400, kyak wrote:
>> Wow, wow, wow!
>>
>> Just tried it with "/usr/bin/poke 0x10003024 0".
>> The reaction to On button is instantanious!!!
>>
>> Xiangfu, how about putting this to our start script?
>> Bas, this is absolutely awesome, thank you!
>>
>> On Wed, 17 Aug 2011, Bas Wijnen wrote:
>>
>>> Andrea Bolognani schreef op wo 17-08-2011 om 12:17 [+0200]:
>>>> Hold on a second: either I’m utterly mistaken, or the kernel is still far
>>>> from being kicked in when the power button is pressed.
>>>
>>> That is correct. But the delay is made by the rtc, which can be set up
>>> when the kernel is running. It will retain its value as long as the rtc
>>> has power (that is, when you remove the battery, you lose both the
>>> current time and this setting).
>>>
>>>> I always assumed
>>>> the circuitry needed that delay, and it was not avoidable.
>>>
>>> It is avoidable, and I don't see a reason to use it.
>>>
>>>> Are you telling me that I’ve been wrong the whole time, and that it is
>>>> possible to achieve instant—boot making changes to the software only?
>>>
>>> Yes. If the kernel sets the rtc register, it will instant-boot from then
>>> on, until the power on the rtc goes down (which should never happen).
>>>
>>> I propose to write the rtc register on every boot, so that even if the
>>> battery was removed and the setting was lost, it still only results in
>>> the delay once.
>>>
>>> I'm talking about register HWFCR, page 131 of the programmer's manual.
>>> Writing 0 to this register (0x10003024) will remove the delay.
>>>
>>> Thanks,
>>> Bas
>>>
>>>
>>>
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