[U-Boot] at91 i2c support

Wolfgang Denk wd at denx.de
Wed May 26 11:21:42 CEST 2010


Dear Maxim Podbereznyy,

please keep the mailing list on cc:

In message <AANLkTikzGywfuVNktDD97PLeuiN0WN5mRZUVoqdjVwTH at mail.gmail.com> you wrote:
> 
> I'm sorry I did not mention about I need *AT91* i2c support in u-boot. I
> know that a general i2c is supported in u-boot since the ages.

It seems there are a number of AT91 based boards in mainline that use
I2C:

	-> g -l AT91 include/configs/* | xargs egrep -l I2C
	include/configs/at91rm9200ek.h
	include/configs/cmc_pu2.h
	include/configs/cpuat91.h
	include/configs/eb_cpux9k2.h
	include/configs/kb9202.h
	include/configs/m501sk.h
	include/configs/mp2usb.h
	include/configs/otc570.h

What exactly is the problem?

> I use references from linux4sam.org to build u-boot and v1.3.4 is used
> there. Actually I tried to find more recent version of u-boot for AT91 but

I have no idea what linux4sam.org is and in which way they might be
an authority of which U-Boot versions are considered to be current.
All I can tell you is that U-Boot 1.3.4 is 21 months old, which is a
long, long time.

> with no luck because u-boot/u-boot-at91.git refers to exactly 1.3.4.

This is wrong. The top of tree of u-boot/u-boot-at91.git is at commit

-> git describe remotes/u-boot-at91.git/master
v2009.06-rc1-5-gf8ddcd5

This is 2065 commits after v1.3.4 and means that a total of 299799
lines have been added since, 141729 lines removed, and 158070 lines
changed.

If you http://git.denx.de/?p=u-boot.git;a=forks you can also see that
the u-boot-at91.git repository is listed as "orphaned", which means
it is probably not the best base when looking for current code.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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