[U-Boot-Users] MPC83xx data cache lock?

Wolfgang Denk wd at denx.de
Tue May 23 10:52:04 CEST 2006

In message <9FCDBA58F226D911B202000BDBAD4673026FD90F at zch01exm40.ap.freescale.net> you wrote:
> MPC83xx data cache locked all ways in u-boot. This means data cache looks like cache-inhibit. when kernel run at this u-boot, kernel don't unlock data cache, so the data cache actually run at inhibited state. I suggest we need unlock data cache after re
> locate_code in start.S file.

Can you please retrict your line legth to the usual 70 characters  or
so? Thanks.

> If unlock data cache in start.S file, we need change everything, such as BATs settings and DDR ECC test code. I have found some bugs in ECC test code.

Ummm.... Can you please  be  a  bit  more  specific?  I'm  definitely
interested   in  details.  Did  you  find  any  way  to  improve  the
[non-existent] write performance?

> ------_=_NextPart_001_01C67E43.D555AAE4
> Content-Type: text/html
> Content-Transfer-Encoding: base64

And please, don't post HTML, especially not encoded as  base64  which
is a double PITA.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
It is dangerous to be sincere unless you are also stupid.
                                                - George Bernard Shaw

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