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On 11/6/13 12:45 AM, Michal Simek wrote:
> On 11/06/2013 05:17 AM, Dinh Nguyen wrote:
>>
>> On 11/5/13 11:46 AM, Jagannadha Sutradharudu Teki wrote:
>>> Zynq uart controller support two serial ports like
>>> CONFIG_ZYNQ_SERIAL_UART0 and CONFIG_ZYNQ_SERIAL_UART1
>>> enabled both so-that the respective board will define
>>> these macros based on their usage.
>>>
>>> Signed-off-by: Jagannadha Sutradharudu Teki <jaga...@xilinx.com>
>>> ---
>>> include/configs/zynq.h | 20 ++++++++++++++++----
>>> 1 file changed, 16 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/include/configs/zynq.h b/include/configs/zynq.h
>>> index f32008b..1bcb28d 100644
>>> --- a/include/configs/zynq.h
>>> +++ b/include/configs/zynq.h
>>> @@ -33,10 +33,22 @@
>>> {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
230400}
>>>
>>> /* Zynq Serial driver */
>>> -#define CONFIG_ZYNQ_SERIAL
>>> -#define CONFIG_ZYNQ_SERIAL_BASEADDR0 0xE0001000
>>> -#define CONFIG_ZYNQ_SERIAL_BAUDRATE0 CONFIG_BAUDRATE
>>> -#define CONFIG_ZYNQ_SERIAL_CLOCK0 50000000
>>> +#define CONFIG_ZYNQ_SERIAL_UART1
>>> +#ifdef CONFIG_ZYNQ_SERIAL_UART0
>>> +# define CONFIG_ZYNQ_SERIAL_BASEADDR0 0xE0000000
>>> +# define CONFIG_ZYNQ_SERIAL_BAUDRATE0 CONFIG_BAUDRATE
>> Why couldn't you just use CONFIG_BAUDRATE? Why do you need to add
>> another define?
>
> If we start to use the same CONFIG_BAUDRATE(or better gd->baudrate)
> in the driver then we lose config options to setup different baudrate
> for every single device.
>
> I haven't seen any code for SERIAL_MULTI if you want to configure
> 2 serial drivers but on different baudrate.
> If there is better way how to do it please let us know.
I guess the question then is what would be the use case for supporting
different baudrates on different device?
Dinh
>
>
> Thanks,
> Michal
>
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