On 1 August 2011 15:39, Wolfgang Denk
<wd@denx.de> wrote:
Dear Chander Kashyap,
In message <CANuQgHGGaB3fWEFCXfgd97QxOfnizxLYvO8ke-v=5PzHyTN-Jg@mail.gmail.com> you wrote:
>
[200+ lines of unrelated quote deleted.]
> > > +void copy_uboot_to_ram(void)
> > > +{
> > > + copy_sd_mmc_to_mem copy_bl2 = (copy_sd_mmc_to_mem)*(u32 *)(0x02020030);
> > > + copy_bl2(BL2_START_OFFSET,\
> > > + BL2_SIZE_BLOC_COUNT, (u32 *)CONFIG_SYS_TEXT_BASE);
> > > +}
> >
> > Curious to know, what the 0x02020030 hardcoding number means here?
> > It is a pointer to a API or hardware register, or anything else, how
> > this simple function perform the
> > data transfer from mmc to ram?
> >
> > 0x02020030 is iROM address, which contains pointer to API (copy from mmc
> from DDR) in iROM.
Well, as you can see yourself here, an external reviewer has no
chance to reand and understand this code. As mentioned before, this
needs serious rework.
Yes I am reworking on it. I make it more readable. But still i need to use the inbuilt function to copy u-boot from mmc to ddr.
Best regards,
Wolfgang Denk
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DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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wd@denx.de
stopped.
-- Spock, "Day of the Dove", stardate unknown