[U-Boot] [PATCH 3/5] Add fuse API and commands

Stefano Babic sbabic at denx.de
Mon Dec 3 12:41:26 CET 2012


On 03/12/2012 12:25, Benoît Thébaudeau wrote:
> Hi Stefano,
> 
> On Monday, December 3, 2012 10:03:22 AM, Stefano Babic wrote:
>> I am thinking about if we need some kind of protection to avoid to
>> destroy very easy the SOC. Running a fuse command can be much more
>> dangerous as scrubbing NAND or erasing flash.
>>
>> What about to add at least a "-y" option when we write the fuses, in
>> the
>> same way we have for the "nand scrub command" ? This does not forbid
>> to
>> use the command in scripts, but it can maybe avoid to destroy the SOC
>> when the command is wrong tipped on the console.
>>
>> What do you think ?
> 
> That makes sense. There could be the same kind of warning confirmation
> defaulting to no that would repeat which fuse is about to be programmed.
> 
> As to the value passed for fuse row programming or overriding, do you think that
> it's fine to force it to be hex, or that choice should be given with '0x'? I
> don't really like implicit base selection, but it's clear in the help message,
> and it is handy for writing MAC addresses without repeating the '0x' for each
> byte.

U-boot uses as default hex as base for numbers, not decimals, and if you
use hex as default you are consistent with the rest of code.

Best regards,
Stefano

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