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

[Ulf Magnusson]

On Tue, Jan 30, 2018 at 2:25 PM, Michal Simek <michal.simek at 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 at 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()

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).

Cheers,
Ulf