[U-Boot] [PATCH V5] ARM: OMAP: I2C: New read, write and probe functions

[Lubomir Popov <lpopov@mm-sol.com>]

Hi Heiko,

On 04/06/13 07:26, Heiko Schocher wrote:
> Hello Lubomir,
> 
> Am 03.06.2013 07:13, schrieb Heiko Schocher:
>> Hello Lubomir,
>>
>> Am 02.06.2013 13:42, schrieb Lubomir Popov:
>>>> Hello Lubomir,
>>>>
>>>> Am 01.06.2013 18:44, schrieb Lubomir Popov:
>>>>> New i2c_read, i2c_write and i2c_probe functions, tested on OMAP4
>>>>> (4430/60/70), OMAP5 (5430) and AM335X (3359); should work on older
>>>>> OMAPs and derivatives as well. The only anticipated exception would
>>>>> be the OMAP2420, which shall require driver modification.
>> [...]
>>>>>  drivers/i2c/omap24xx_i2c.c | 490 +++++++++++++++++++++++++++------------------
>>>>>  1 file changed, 299 insertions(+), 191 deletions(-)
>>>>
>>>> Tested on 3 arm335x based boards, which one uses i2c in SPL
>>>> code for getting ram parameters, so:
>>>>
>>>> Tested-by: Heiko Schocher <hs@denx.de>
>>> Many thanks for testing, to Tom as well (he did it on the
>>> Beagleboards, but for one of the older versions, V3 I believe,
>>> right?).
>>> When it comes to versions, I see that V1 and V2 are still listed
>>> in patchwork, probably because of slightly different wording of
>>> the subject:
>>> http://patchwork.ozlabs.org/patch/233823/
>>> http://patchwork.ozlabs.org/patch/246204/
>>> Could you or Tom clean this up, please? Thanks.
>>
>> Cleared the v3 v4 version, but missed the v2 and v1, Done.
> 
> just doing a "MAKEALL arm" with your patch applied and get this error:
> 
> Configuring for omap2420h4 board...
> omap24xx_i2c.c:497:17: error: 'struct i2c' has no member named 'irqstatus_raw'
> omap24xx_i2c.c:528:12: error: 'struct i2c' has no member named 'irqstatus_raw'
> arm-linux-gnueabi-size: './u-boot': No such file
> omap24xx_i2c.c: In function 'wait_for_bb':
> omap24xx_i2c.c:497:17: error: 'struct i2c' has no member named 'irqstatus_raw'
> omap24xx_i2c.c: In function 'wait_for_event':
> omap24xx_i2c.c:528:12: error: 'struct i2c' has no member named 'irqstatus_raw'
> make[1]: *** [omap24xx_i2c.o] Fehler 1
> make: *** [drivers/i2c/libi2c.o] Fehler 2
> make: *** Warte auf noch nicht beendete Prozesse...
> 
> Please fix this and run a "MAKEALL arm" before repost, thanks!
We have agreed upon this breakage with Tom - the OMAP2420 shall not
be supported anymore in the next release. At least I understood it
that way (and have noted it accordingly in the comments).

I could of course make a very simple modification that would allow
build without errors, but the driver shall not work on the 2420; in
order to make it work, a more serious rework is required. I don't
have however any 2420 hardware to test upon.

Tom?

> 
> bye,
> Heiko
> 
Regards,
Lubo