> Yes the STM32F7 has a new I2C IP core compared to STM32F4.
> The engine, the machine state are very different.
> I tried few months ago to write a common driver but it was very very
> difficilcut as the 2 IP are not so much things in common.
Good, thanks for the heads up!
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Hi Wolfram,
Yes the STM32F7 has a new I2C IP core compared to STM32F4.
The engine, the machine state are very different.
I tried few months ago to write a common driver but it was very very
difficilcut as the 2 IP are not so much things in common.
BR,
Cedric
2017-03-23 21:17 GMT+01:00 Wolfram Sa
On Fri, Mar 17, 2017 at 10:58:56AM +0100, M'boumba Cedric Madianga wrote:
> This patch adds initial support for the STM32F7 I2C controller.
>
> Signed-off-by: M'boumba Cedric Madianga
So, the STM32F7 has a new I2C IP core compared to STM32F4?
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Hi Neil,
>> As, I2C rise/fall time have some impacts in I2C timings value, the
>> question is: it is very relevant to let customer control these
>> parameters ?
>
> Actually, you could specify a different rise time in DT if it's relevant for
> a specific design, this is why you have the following
Hi Cedric,
On 03/17/2017 04:35 PM, M'boumba Cedric Madianga wrote:
>> Sorry I don't understand.
>> The value you use from the DT and the one calculated from the
>> setup/hold/high/low value
>> with the algorithm I developed will set the same values.
>
> With the ST tool, I could set the followin
> Sorry I don't understand.
> The value you use from the DT and the one calculated from the
> setup/hold/high/low value
> with the algorithm I developed will set the same values.
With the ST tool, I could set the following values:
I2C speed mode (Master, Fast Mode, Fast Mode Plus)
I2C speed frequ
On 03/17/2017 02:52 PM, M'boumba Cedric Madianga wrote:
> Hi,
>
>
>>> +static int stm32f7_i2c_hw_config(struct stm32f7_i2c_dev *i2c_dev)
>>> +{
>>> + struct device_node *of_node = i2c_dev->dev->of_node;
>>> + u32 timing;
>>> + int ret;
>>> +
>>> + ret = of_property_read_u32(of_nod
Hi,
>> +static int stm32f7_i2c_hw_config(struct stm32f7_i2c_dev *i2c_dev)
>> +{
>> + struct device_node *of_node = i2c_dev->dev->of_node;
>> + u32 timing;
>> + int ret;
>> +
>> + ret = of_property_read_u32(of_node, "st,i2c-timing", &timing);
>> + if (ret) {
>> + de
On 03/17/2017 10:58 AM, M'boumba Cedric Madianga wrote:
> This patch adds initial support for the STM32F7 I2C controller.
>
> Signed-off-by: M'boumba Cedric Madianga
> ---
> drivers/i2c/busses/Kconfig | 10 +
> drivers/i2c/busses/Makefile | 1 +
> drivers/i2c/busses/i2c-stm32f7.c |
This patch adds initial support for the STM32F7 I2C controller.
Signed-off-by: M'boumba Cedric Madianga
---
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-stm32f7.c | 562 +++
3 files changed, 573 ins
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