[U-Boot] [PATCH] ti_armv7_common: enable setexpr

[Vitaly Andrianov <vitalya@ti.com>]

On 08/06/2015 11:31 AM, Tom Rini wrote:
> On Thu, Aug 06, 2015 at 10:08:59AM -0500, Nishanth Menon wrote:
>> On 08/06/2015 10:04 AM, Tom Rini wrote:
>>> On Thu, Aug 06, 2015 at 09:48:27AM -0500, Nishanth Menon wrote:
>>>
>>>> This allows us to do basic math in hush shell. For example:
>>>> U-Boot# r1=10
>>>> U-Boot# r2=20
>>>> U-Boot# setexpr.l r3 $r1 + $r2
>>>> U-Boot# echo $r3
>>>> 30
>>>>
>>>> Reported-by: Vitaly Andrianov <vitalya@ti.com>
>>>> Suggested-by: Tom Rini <trini@ti.com>
>>>> Signed-off-by: Nishanth Menon <nm@ti.com>
>>>
>>> This needs to be done in the configs/ files now instead as we have
>>> CMD_EXPR there.  In fact I'm not sure right now which would win, the
>>> define here or the disable currently in the config files :)
>>>
>> yeah, I do many defconfigs define CONFIG_CMD_SETEXPR..
>>
>> We dont have a common config file there(similar to ti_armv7_common) ..
>> we'd have to introduce this for every board config then... is'nt that
>> in-efficient?
>
> Much like the kernel we try and pick sensible defaults.  In this case
> you'd be removing a line from the defconfig files.
>
> But you're not the first to suggest that something better could be done
> here and maybe further down the line we'll play with the upstream tools
> for merging defconfig snippets so that we could have some common ones
> pulled together.
>
I just curious whether setexpr.l will work with 64bit variable, which
required to represent initrd address with LPAE enabled. Does the
setexpr have uint_64_t version?