10 Mar
2004
10 Mar
'04
9:12 a.m.
In message 20040310020510.99183.qmail@web12009.mail.yahoo.com you wrote:
As a general rule should the caches (data / instruction) be enabled or disabled?
There is no general rule. It depends on the architecture / processor.
I noticed in the MIPS code that the caches were being enabled.
If you don't have any on-chip memory or SRAM or so which can be used for intiial data and stack, the "memopry-in-data-cache" trick must be used, and then you obviously have to enable the DC.
IC should always be on.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
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