[U-Boot-Users] [PATCH] PPC40x: Rework CFG_INIT_DCACHE_CS Block to Avoid Machine Checks

Wolfgang Denk
2008-05-18T20:38:02Z

In message <1210973711-1855-1-git-send-email-gerickson@nuovations.com> you wrote:
>
...
> cpu/ppc4xx/start.S:
> Reworked code to handle the primordial stack and data area initialization when CFG_INIT_DCACHE_CS is asserted.
...
> - * Boards like the Kilauea (405EX) don't have OCM and can't use
> - * DCache for init-ram. So setup stack here directly after the
> - * SDRAM is initialized.
> + * For boards that don't have OCM and can't use the data cache
> + * for their primordial stack, setup stack here directly after the
> + * SDRAM is initialized in ext_bus_cntlr_init.

Was there ever a useful explanation given why these boards should not
be able to use DC as initial RAM?

Best regards,

Wolfgang Denk

--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
[Braddock:] Mr. Churchill, you are drunk.
[Churchill:] And you madam, are ugly. But I shall be sober tomorrow.