* [ECOS] spi driver on at91
@ 2004-08-12 14:28 davarn
2004-08-13 7:29 ` Mike Jastrebtsoff
0 siblings, 1 reply; 6+ messages in thread
From: davarn @ 2004-08-12 14:28 UTC (permalink / raw)
To: ecos-discuss
I am currently starting the devellopement of an spi driver on at91.
Does anobody have done that already or is currently doing?
If someone do this driver let me know to not devellop this twice.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [ECOS] spi driver on at91
2004-08-12 14:28 [ECOS] spi driver on at91 davarn
@ 2004-08-13 7:29 ` Mike Jastrebtsoff
2004-08-13 7:34 ` Andrew Lunn
2004-08-13 11:29 ` davarn
0 siblings, 2 replies; 6+ messages in thread
From: Mike Jastrebtsoff @ 2004-08-13 7:29 UTC (permalink / raw)
To: davarn; +Cc: ecos-discuss
Hello,
I've ported SPI driver form arm-linux to ecos(AT91M55800A) not so long ago.
I used it with Dataflash memory.
It has some issues:
1. The speed rate doesn't rise beyond 320 Kbit.
I've applied to the Atmel's support but didn't get a satisfactory answer.
2. Sometimes the spi device doesn't answer the command.
Probably these are peculiarities of AT91 SPI or my bugs.
I could send it to you.
By the way there is Atmel's software SPI driver.
-------
Regards,
Mike
dff> I am currently starting the devellopement of an spi driver on at91.
dff> Does anobody have done that already or is currently doing?
dff> If someone do this driver let me know to not devellop this twice.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [ECOS] spi driver on at91
2004-08-13 7:29 ` Mike Jastrebtsoff
@ 2004-08-13 7:34 ` Andrew Lunn
2004-08-13 8:34 ` Re[2]: " Mike Jastrebtsoff
2004-08-13 11:29 ` davarn
1 sibling, 1 reply; 6+ messages in thread
From: Andrew Lunn @ 2004-08-13 7:34 UTC (permalink / raw)
To: Mike Jastrebtsoff; +Cc: davarn, ecos-discuss
On Fri, Aug 13, 2004 at 02:29:41PM +0700, Mike Jastrebtsoff wrote:
> Hello,
>
> I've ported SPI driver form arm-linux to ecos(AT91M55800A) not so long ago.
It should be noted that the linux SPI driver will probably by GPL, not
modified GPL. This means that your entire system is now GPL and you
have to provide full sources for your application to anybody who can
legitimately ask for it..... Maybe this is OK for you, maybe not.
Andrew
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re[2]: [ECOS] spi driver on at91
2004-08-13 7:34 ` Andrew Lunn
@ 2004-08-13 8:34 ` Mike Jastrebtsoff
0 siblings, 0 replies; 6+ messages in thread
From: Mike Jastrebtsoff @ 2004-08-13 8:34 UTC (permalink / raw)
To: Andrew Lunn; +Cc: ecos-discuss
Hello, Andrew.
I meant for driver's developing I took some ideas from arm-linux
spi driver(actually this is a common layer not a driver) only idea
+ atmel's cdrom samples. The code is quite different.
Regards,
Mike
AL> On Fri, Aug 13, 2004 at 02:29:41PM +0700, Mike Jastrebtsoff wrote:
>> Hello,
>>
>> I've ported SPI driver form arm-linux to ecos(AT91M55800A) not so long ago.
AL> It should be noted that the linux SPI driver will probably by GPL, not
AL> modified GPL. This means that your entire system is now GPL and you
AL> have to provide full sources for your application to anybody who can
AL> legitimately ask for it..... Maybe this is OK for you, maybe not.
AL> Andrew
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [ECOS] spi driver on at91
2004-08-13 7:29 ` Mike Jastrebtsoff
2004-08-13 7:34 ` Andrew Lunn
@ 2004-08-13 11:29 ` davarn
1 sibling, 0 replies; 6+ messages in thread
From: davarn @ 2004-08-13 11:29 UTC (permalink / raw)
To: Michael Jastrebtsoff; +Cc: ecos-discuss
Hello,
I'm really interested to see your code, perhaps it wiil be a good starting
point, or perhaps just need a simple port to at91m42800.
What i want to do is "/dev/spi" type of driver wich can handle all type of AT91
board.
After make a dataFlash and ADC driver on it.
Regards
David
Selon Mike Jastrebtsoff <jam2000@pisem.net>:
> Hello,
>
> I've ported SPI driver form arm-linux to ecos(AT91M55800A) not so long ago.
> I used it with Dataflash memory.
>
> It has some issues:
> 1. The speed rate doesn't rise beyond 320 Kbit.
> I've applied to the Atmel's support but didn't get a satisfactory answer.
> 2. Sometimes the spi device doesn't answer the command.
>
> Probably these are peculiarities of AT91 SPI or my bugs.
> I could send it to you.
>
> By the way there is Atmel's software SPI driver.
>
> -------
> Regards,
> Mike
>
> dff> I am currently starting the devellopement of an spi driver on at91.
> dff> Does anobody have done that already or is currently doing?
> dff> If someone do this driver let me know to not devellop this twice.
>
>
>
>
>
>
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Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [ECOS] Re: spi driver on at91
@ 2004-08-19 14:31 Savin Zlobec
2004-08-19 14:55 ` davarn
0 siblings, 1 reply; 6+ messages in thread
From: Savin Zlobec @ 2004-08-19 14:31 UTC (permalink / raw)
To: davarn, jam2000; +Cc: ecos-discuss
davarn wrote:
>Hello,
>I'm really interested to see your code, perhaps it wiil be a good starting
>point, or perhaps just need a simple port to at91m42800.
>What i want to do is "/dev/spi" type of driver wich can handle all type of AT91
>board.
>After make a dataFlash and ADC driver on it.
>
>Regards
>David
>
>Selon Mike Jastrebtsoff <jam2000@pisem.net>:
>
>> Hello,
>>
>> I've ported SPI driver form arm-linux to ecos(AT91M55800A) not so long ago.
>> I used it with Dataflash memory.
>>
>> It has some issues:
>> 1. The speed rate doesn't rise beyond 320 Kbit.
>> I've applied to the Atmel's support but didn't get a satisfactory answer.
>> 2. Sometimes the spi device doesn't answer the command.
>>
>> Probably these are peculiarities of AT91 SPI or my bugs.
>> I could send it to you.
>>
>> By the way there is Atmel's software SPI driver.
>>
>> -------
>> Regards,
>> Mike
>>
>> dff> I am currently starting the devellopement of an spi driver on at91.
>> dff> Does anobody have done that already or is currently doing?
>> dff> If someone do this driver let me know to not devellop this twice.
>
>
Hi,
I've also started writing an spi driver some time ago, did an io_spi
device driver and
its low level part for the at91. I managed to do some tests with its
local loopback feature,
the next thing in plan is to write an dataFlash driver...
I can share my code and maybe eCos needs an spi device driver
infrastructure.
Anybody interested in merging our work ?
savin
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [ECOS] Re: spi driver on at91
2004-08-19 14:31 [ECOS] " Savin Zlobec
@ 2004-08-19 14:55 ` davarn
[not found] ` <20040819183022.548AEEC10C@delenn.bartv.net>
0 siblings, 1 reply; 6+ messages in thread
From: davarn @ 2004-08-19 14:55 UTC (permalink / raw)
To: Savin Zlobec; +Cc: jam2000, ecos-discuss
Hello,
I'm interested in merging all this work and give to ecos a /dev/spi type of
I already started to write cdl to give to this driver, flexibility.
I plan first to write only a spi master driver.
David Arnaud
Selon Savin Zlobec <savin@elatec.si>:
> davarn wrote:
>
> >Hello,
> >I'm really interested to see your code, perhaps it wiil be a good starting
> >point, or perhaps just need a simple port to at91m42800.
> >What i want to do is "/dev/spi" type of driver wich can handle all type of
> AT91
> >board.
> >After make a dataFlash and ADC driver on it.
> >
> >Regards
> >David
> >
> >Selon Mike Jastrebtsoff <jam2000@pisem.net>:
> >
> >> Hello,
> >>
> >> I've ported SPI driver form arm-linux to ecos(AT91M55800A) not so long
> ago.
> >> I used it with Dataflash memory.
> >>
> >> It has some issues:
> >> 1. The speed rate doesn't rise beyond 320 Kbit.
> >> I've applied to the Atmel's support but didn't get a satisfactory
> answer.
> >> 2. Sometimes the spi device doesn't answer the command.
> >>
> >> Probably these are peculiarities of AT91 SPI or my bugs.
> >> I could send it to you.
> >>
> >> By the way there is Atmel's software SPI driver.
> >>
> >> -------
> >> Regards,
> >> Mike
> >>
> >> dff> I am currently starting the devellopement of an spi driver on at91.
> >> dff> Does anobody have done that already or is currently doing?
> >> dff> If someone do this driver let me know to not devellop this twice.
> >
> >
>
> Hi,
>
> I've also started writing an spi driver some time ago, did an io_spi
> device driver and
> its low level part for the at91. I managed to do some tests with its
> local loopback feature,
> the next thing in plan is to write an dataFlash driver...
>
> I can share my code and maybe eCos needs an spi device driver
> infrastructure.
> Anybody interested in merging our work ?
>
> savin
>
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2004-08-25 15:13 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-08-12 14:28 [ECOS] spi driver on at91 davarn
2004-08-13 7:29 ` Mike Jastrebtsoff
2004-08-13 7:34 ` Andrew Lunn
2004-08-13 8:34 ` Re[2]: " Mike Jastrebtsoff
2004-08-13 11:29 ` davarn
2004-08-19 14:31 [ECOS] " Savin Zlobec
2004-08-19 14:55 ` davarn
[not found] ` <20040819183022.548AEEC10C@delenn.bartv.net>
2004-08-25 17:51 ` [ECOS] " Savin Zlobec
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