* Multiple I2C busses on PPC405
@ 2005-08-12 22:37 Tolunay Orkun
2005-08-18 15:06 ` Tolunay Orkun
0 siblings, 1 reply; 2+ messages in thread
From: Tolunay Orkun @ 2005-08-12 22:37 UTC (permalink / raw)
To: linuxppc-embedded
I have a working embedded linux on Cogent CSB472 board (PPC405GP)
currently based on off 2.4.31. We are already using the I2C bus on
PowerPC using hardware I2C driver (IBM IIC I2C Interface) at Fast
(400khz) mode.
We need to add support for yet another (slow) I2C bus with PPC405 being
the master and I'm looking at implementing bit bang interface using GPIO
pins.
What is the best way to get this going? I am looking at modifying the
bit bang driver (PPC_405_I2C_Algorithm?) for the I/O pins I'll use.
Anyone has done something similar. I appreciate all the advice I can get.
Best Regards,
Tolunay
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Multiple I2C busses on PPC405
2005-08-12 22:37 Multiple I2C busses on PPC405 Tolunay Orkun
@ 2005-08-18 15:06 ` Tolunay Orkun
0 siblings, 0 replies; 2+ messages in thread
From: Tolunay Orkun @ 2005-08-18 15:06 UTC (permalink / raw)
To: Tolunay Orkun; +Cc: linuxppc-embedded
I've not received any reply to my inquiry. Since it was last Friday
afternoon it might have been missed.
I really do appreciate if someone would suggest a bitbang I2C interface
driver generic enough to modify. I only need /dev/i2c? support from the
driver.
Tolunay
Tolunay Orkun wrote:
> I have a working embedded linux on Cogent CSB472 board (PPC405GP)
> currently based on off 2.4.31. We are already using the I2C bus on
> PowerPC using hardware I2C driver (IBM IIC I2C Interface) at Fast
> (400khz) mode.
>
> We need to add support for yet another (slow) I2C bus with PPC405 being
> the master and I'm looking at implementing bit bang interface using GPIO
> pins.
>
> What is the best way to get this going? I am looking at modifying the
> bit bang driver (PPC_405_I2C_Algorithm?) for the I/O pins I'll use.
> Anyone has done something similar. I appreciate all the advice I can get.
>
> Best Regards,
> Tolunay
>
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2005-08-18 15:06 ` Tolunay Orkun
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