[U-Boot] TI:OMAP: [PATCH 2/7] Enable I2C bus switching

[Dirk Behme <dirk.behme@googlemail.com>]

On 24.01.2010 01:05, Tom wrote:
> Khasim Syed Mohammed wrote:
>>  From 9bb1c3501c8f098dac6e224c99e409ebf92b0ab9 Mon Sep 17 00:00:00 2001
>> From: Syed Mohammed Khasim<khasim@ti.com>
>> Date: Mon, 18 Jan 2010 18:11:14 +0530
>> Subject: [PATCH] Enable I2C bus switching
>>
>> OMAP3 supports Multiple I2C channels, this patch allows
>> us to use i2c dev<bus no>  command to switch between busses.
>>
>> Signed-off-by: Syed Mohammed Khasim<khasim@ti.com>
>> Acked-by: Heiko Schocher<hs@denx.de>
>> ---
>>   drivers/i2c/omap24xx_i2c.c     |    5 +++++
>>   include/configs/omap3_beagle.h |    6 ++++++
>>   2 files changed, 11 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c
>> index ff18991..e8c8184 100644
>> --- a/drivers/i2c/omap24xx_i2c.c
>> +++ b/drivers/i2c/omap24xx_i2c.c
>> @@ -435,3 +435,8 @@ int i2c_set_bus_num(unsigned int bus)
>>
>>   	return 0;
>>   }
>> +
>> +int i2c_get_bus_num(void)
>> +{
>> +	return (int) current_bus;
>> +}
>> diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
>> index a8abb0e..4d516a4 100644
>> --- a/include/configs/omap3_beagle.h
>> +++ b/include/configs/omap3_beagle.h
>> @@ -100,6 +100,12 @@
>>   /* DDR - I use Micron DDR */
>>   #define CONFIG_OMAP3_MICRON_DDR		1
>>
>> +/* Enable Multi Bus support for I2C */
>> +#define CONFIG_I2C_MULTI_BUS		1
>> +
>> +/* Probe all devices */
>> +#define CONFIG_SYS_I2C_NOPROBES		{0x0, 0x0}
>
> Most/All of the configs I reviewed set the addr element
> to a valid address.  I do not believe 0 is a valid address
> on omap.  If the intent is a double negative
> {0, 0} == probe all
> Then add a comment.

I would fix this, but I have no idea what to add :( Any hint?

Dirk