[U-Boot] [RFC] FIT: use default configuration, if given configuration is not found

[Joe Hershberger]

Hi Yegor,

On Tue, May 12, 2015 at 1:43 AM, Yegor Yefremov
<yegorslists at googlemail.com> wrote:
> Hi Joe,
>
> On Mon, May 4, 2015 at 8:16 PM, Joe Hershberger
> <joe.hershberger at gmail.com> wrote:
>> Hi Yegor,
>>
>> On Mon, May 4, 2015 at 2:53 AM,  <yegorslists at googlemail.com> wrote:
>>> From: Yegor Yefremov <yegorslists at googlemail.com>
>>>
>>> Signed-off-by: Yegor Yefremov <yegorslists at googlemail.com>
>>> ---
>>>  common/image-fit.c |    4 ++++
>>>  1 files changed, 4 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/common/image-fit.c b/common/image-fit.c
>>> index c61be65..b892d06 100644
>>> --- a/common/image-fit.c
>>> +++ b/common/image-fit.c
>>> @@ -1547,6 +1547,10 @@ int fit_image_load(bootm_headers_t *images, ulong addr,
>>>                 } else {
>>>                         cfg_noffset = fit_conf_get_node(fit,
>>>                                                         fit_uname_config);
>>> +
>>> +                       if (cfg_noffset < 0) {
>>> +                               cfg_noffset = fit_conf_get_node(fit, NULL);
>>> +                       }
>>
>> It seems if you ask for a specific configuration that is not
>> available, you should get an error.
>>
>> You can accomplish similar behavior you are implementing here by using
>> the shell to try the default if the specified one returns an error.
>
> Thanks. It is working:
>
> bootm ${loadaddr}#conf${board_name}; if test $? -ne 0; then echo
> "Using default FIT configuration"; bootm ${loadaddr}; fi;

Great!

> Now I have another question, how can I split long line in uEnv.txt? Is
> it possible at all?

I assume you are loading it and eventually calling env import on the memory?

Have you tried passing the -t switch to the env import command?

Or are you talking about a single variable value that is a long line?

-Joe