[U-Boot] [PATCH 2/2] watchdog: designware: Convert to DM and DT probing

Marek Vasut marex at denx.de
Thu Oct 3 18:06:28 UTC 2019


On 10/3/19 8:03 PM, Simon Goldschmidt wrote:
> Marek Vasut schrieb am Do., 3. Okt. 2019, 14:19:
> 
>> On 10/3/19 1:40 PM, Marek Vasut wrote:
>>> On 10/3/19 9:55 AM, Jagan Teki wrote:
>>>> On Thu, Oct 3, 2019 at 4:26 AM Marek Vasut wrote:
>>>>>
>>>>> Convert the designware watchdog timer driver to DM and add DT probing
>>>>> support. Perform minor coding style clean up, like drop superfluous
>>>>> braces. These ought to be no functional change.
>>>>> ---
>>>>>  configs/socfpga_stratix10_defconfig   |  1 +
>>>>>  configs/socfpga_vining_fpga_defconfig |  1 +
>>>>>  drivers/watchdog/Kconfig              | 14 ++--
>>>>>  drivers/watchdog/designware_wdt.c     | 97 +++++++++++++++++++--------
>>>>>  4 files changed, 77 insertions(+), 36 deletions(-)
>>>>
>>>> fyi: this is already in ML [1] and yet to pick for next MW. let me
>>>> know if you have any questions?
>>>>
>>>> [1] https://patchwork.ozlabs.org/patch/1153389/
>>>
>>> It's a pity I wasn't CCed on that patch.
>>>
>>> That patch won't work for SoCFPGA, see my reply to Ley. We will need one
>>> which can do non-DM WDT in SPL, so I will be sending a V2 of this one
>>> which retains the common code and still supports HW_WATCHDOG in SPL and
>>> DM-WDT in U-Boot proper.
>>
>> Oh, and the clock/reset stuff should be optional, since at least DM
>> clock are not present on socfpga gen5 yet.
>>
> 
> I'm working on that. Sadly, I haven't fou,d the time to finish it up since
> mid August, but I'm planning to do it in the upcoming merge window.

Great!

Note that if you build a board without DM watchdog today, it complains
about removal until 2019.10, so that's one issue here. The other is that
I don't think we can do DM watchdog in SPL on Gen5, can we ?


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