[U-Boot] hi, I could not understand the memsize.c, somebody help me?

[Wolfgang Denk]

Dear IaMaPlAyEr,

In message <2ae8403e0906242014k7e37b8f0tebaffaeeaea3f6bc at mail.gmail.com> you wrote:
> 
> I could not understand common/memsize.c, how it works?

It writes markers at specific memory locations and then reads these
back. The algorithm is chosen to be fast but still to be able to
detect mirrored address ranges and other memory errors.

> maxsize / sizeof (long), what's meaning of it? why sizeof (long) is
> dividend?

Please read some boot about C programming, section pointer arithmetics.

> just like stack,  push every step mem addr to save:
> 
> save[i++] = *addr;
> and then?

The test is intended to be a non-desctructive one.

Best regards,

Wolfgang Denk

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