[U-Boot] [RFC] i2c, ppc4xx_i2c: switch to new multibus/multiadapter support

[Heiko Schocher <hs@denx.de>]

Hello Dirk,

On 24.04.2013 15:00, Dirk Eibach wrote:
> Hello Heiko,
> 
>> On 24.04.2013 13:43, Dirk Eibach wrote:
>>> Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
>>> Cc: Heiko Schocher <hs@denx.de>
>>> Cc: Stefan Roese <sr@denx.de>
>>> ---
>>>  drivers/i2c/Makefile     |    2 +-
>>>  drivers/i2c/ppc4xx_i2c.c |  193 
>>> +++++++++++++++++++++++-----------------------
>>>  2 files changed, 97 insertions(+), 98 deletions(-)
>>
>> Did you tried this patch with the mutlibus/multiadapter
>> framework?
> 
> sure. This RFC is based on 20130416_multibus_v2.

Great! :-)

Also with soft_i2c driver in use?

>> When switching one i2c driver to this new Framework, you
>> must adapt all config files, which use this driver ...
>> Sorry, some stupid work, but it must be done, without
>> this I will bet, MAKEALL fails ...
> 
> Certainly. But before starting this, I wanted to make sure, that the 
> basic implementation is allright.

Yep, looks fine too me.

>> [...]
>>> diff --git a/drivers/i2c/ppc4xx_i2c.c b/drivers/i2c/ppc4xx_i2c.c
>>> index 53fedd5..c924874 100644
>>> --- a/drivers/i2c/ppc4xx_i2c.c
>>> +++ b/drivers/i2c/ppc4xx_i2c.c
>> [...]
>>> +#ifdef CONFIG_SYS_I2C_PPC4XX_CH0
>>
>> You introduce here new defines, please document them in
>> the README, thanks!
> 
> OK.

Thanks!

>>> +U_BOOT_I2C_ADAP_COMPLETE(ppc4xx_0, ppc4xx_i2c_init, 
>>> ppc4xx_i2c_probe,
>>> +			 ppc4xx_i2c_read, ppc4xx_i2c_write,
>>> +			 ppc4xx_i2c_set_bus_speed,
>>> +			 CONFIG_SYS_I2C_PPC4XX_SPEED_0,
>>> +			 CONFIG_SYS_I2C_PPC4XX_SLAVE_0, 0)
>>> +#endif
>>> +#ifdef CONFIG_SYS_I2C_PPC4XX_CH1
>>> +U_BOOT_I2C_ADAP_COMPLETE(ppc4xx_1, ppc4xx_i2c_init, 
>>> ppc4xx_i2c_probe,
>>> +			 ppc4xx_i2c_read, ppc4xx_i2c_write,
>>> +			 ppc4xx_i2c_set_bus_speed,
>>> +			 CONFIG_SYS_I2C_PPC4XX_SPEED_1,
>>> +			 CONFIG_SYS_I2C_PPC4XX_SLAVE_1, 1)
>>> +#endif
>>
>> beside of this, your patch looks good ...
> 
> Fine, so I will start adapting all dependent boards. Should the patch 
> be based on 20130416_multibus_v2 or should I post a series based on 
> v2013.04 that includes the 20130416_multibus_v2 changes?

Against 20130416_multibus_v2 and if the merge window opens
I post this patch with the other patches for this new
i2c framework on the ML.

bye,
Heiko
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