Dirk,
On 2/5/2010 11:30 PM, Dirk Behme wrote:
> 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<kha...@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<kha...@ti.com>
>>> Acked-by: Heiko Schocher<h...@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?
>
>
CONFIG_SYS_I2C_NOPROBES doesn't have to be defined. It's there as a
convenience in case there are devices that you don't want to be included
when probing the bus. If there's nothing you want to skip, don't define it.
> Dirk
> _____
>
regards,
Ben
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