[U-Boot] [PATCH 0/5] PL01x: baudrate & line control fixes

vikasm vikas.manocha at st.com
Tue Nov 25 01:40:39 CET 2014


Hi Simon,

On 11/24/2014 07:51 AM, Simon Glass wrote:
> Hi Vikas,
>
> On 18 November 2014 at 11:59, vikasm <vikas.manocha at st.com> wrote:
>> Thanks Simon,
>>
>>
>> On 11/17/2014 09:30 PM, Simon Glass wrote:
>>> Hi Vikas,
>>>
>>> On 18 November 2014 00:17, Vikas Manocha <vikas.manocha at st.com> wrote:
>>>> This patchset fixes the pl01x driver esp for pl011 baudrate & line
>>>> control.
>>>>
>>>> Vikas Manocha (5):
>>>>     serial: pl01x: pass pl01x_type to set baudrate
>>>>     serial: pl01x: fix pl011 baud rate configuration
>>>>     serial: pl01x: move all line control at same place
>>>>     serial: pl01x: disable as per type of pl01x
>>>>     serial: pl01x: avoid pl01x type check two times
>>>>
>>>>    drivers/serial/serial_pl01x.c |   46
>>>> +++++++++++++++++++++--------------------
>>>>    1 file changed, 24 insertions(+), 22 deletions(-)
>>> Great to see this series. If you have not tested on p1010 I can do
>>> this in a week or so (am travelling). At least a few of these looks
>>> like bug fixes to my recent refactor so I could bring them through the
>>> DM tree if no one else picks them up.
>>
>> I was able to test it only for pl011, don't have any board with pl010.
> Sadly I was wrong, I only have pl011 also. It makes me wonder how it
> worked so nicely for me without your patches.
Please find below the possible explanation for all patches:

serial: pl01x: pass pl01x_type to set baudrate
- This patch only affect if DM is not defined.
If you are using driver model for pl011, pl011 will work without this patch.

serial: pl01x: fix pl011 baud rate configuration
- If pl011 is already configured to correct baudrate or LCR register is 
being written later.

serial: pl01x: move all line control at same place
- this patch does not affect the functionality.

serial: pl01x: disable as per type of pl01x
- pl011 might work without disabling it properly at start.
pl010 control register(disable bit) location is reserved in case of pl011.

serial: pl01x: avoid pl01x type check two times
- does not affect the functionality.

>
> Regards,
> Simon



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