[U-Boot] [PATCH] arm64: zynqmp: Fix misspelled choice default

[Ulf Magnusson <ulfalizer@gmail.com>]

On Tue, Jan 30, 2018 at 2:58 PM, Michal Simek <michal.simek@xilinx.com> wrote:
> On 30.1.2018 14:38, Ulf Magnusson wrote:
>> On Tue, Jan 30, 2018 at 2:25 PM, Michal Simek <michal.simek@xilinx.com> wrote:
>>> On 30.1.2018 14:02, Ulf Magnusson wrote:
>>>> There is no JTAG symbol in the "Boot mode" choice. JTAG_MODE was
>>>> probably intended.
>>>>
>>>> No functional changes. Kconfig choices fall back on using the first
>>>> (visible) symbol in the choice as the default if the default symbol is
>>>> not visible.
>>>>
>>>> Discovered in Kconfiglib (https://github.com/ulfalizer/Kconfiglib),
>>>> which prints the following warning:
>>>>
>>>>       warning: the default selection JTAG (undefined) of <choice> (defined at arch/arm/cpu/armv8/zynqmp/Kconfig:107) is not contained in the choice
>>>>
>>>> I've added a corresponding warning to the C tools too, which is
>>>> currently in linux-next: https://patchwork.kernel.org/patch/9983667/
>>>>
>>>> Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
>>>> ---
>>>>  arch/arm/cpu/armv8/zynqmp/Kconfig | 2 +-
>>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff --git a/arch/arm/cpu/armv8/zynqmp/Kconfig b/arch/arm/cpu/armv8/zynqmp/Kconfig
>>>> index 3f922b4097..56b7846f63 100644
>>>> --- a/arch/arm/cpu/armv8/zynqmp/Kconfig
>>>> +++ b/arch/arm/cpu/armv8/zynqmp/Kconfig
>>>> @@ -107,7 +107,7 @@ config SPL_ZYNQMP_ALT_BOOTMODE
>>>>  choice
>>>>       prompt "Boot mode"
>>>>       depends on SPL_ZYNQMP_ALT_BOOTMODE_ENABLED
>>>> -     default JTAG
>>>> +     default JTAG_MODE
>>>>
>>>>  config JTAG_MODE
>>>>       bool "JTAG_MODE"
>>>>
>>>
>>> Applied. How to run this tool inside u-boot?
>>>
>>> Thanks,
>>> Michal
>>
>> Thanks.
>>
>> The following should work, in the U-Boot root:
>>
>>         $ pip install kconfiglib
>>         $ UBOOTVERSION=2018.03-rc1 python
>>         >>> import kconfiglib
>>         >>> kconf = kconfiglib.Kconfig()
>
> Nice.
>
>>
>> That will parse the Kconfig files (and generate any parsing-related
>> errors and warnings). See the documentation for what functionality is
>> available.
>>
>> I just set the UBOOTVERSION environment variable to avoid a warning,
>> since it's referenced inside the Kconfig files (ordinarily it would be
>> exported from the makefiles). Not sure what actually depends on it.
>>
>> There's already an old version of Kconfiglib that's used by
>> tools/genboardscfg.py and some other scripts in U-Boot by the way. If
>> that one ever starts to feel slow, Kconfiglib 2 should be faster
>> (though it would require updating genboardscfg.py to the new API).
>
> I see this as the part of buildman and I use this tool quite often but
> have never seen this zynqmp error.
> I see it as part of genboardscfg and moveconfig but not buildman.
>
> Thanks,
> Michal
>

The warning is new in both Kconfiglib and the C tools (only in
linux-next currently), so it won't get generated by anything in U-Boot
at the moment.

Cheers,
Ulf