I reviewed the data sheet of Mips CPU - QED RM5231.
There is a wait instruction.
But when the SysAD bus goes to idle, the wait instruction is valid.
How can I SysAD bus make idle state?
From: Ralf Baechle [mailto:firstname.lastname@example.org]
Sent: Monday, November 12, 2001 9:31 PM
To: Han-Seong Kim
Cc: email@example.com; firstname.lastname@example.org
Subject: Re: Power MGMT on mips
On Mon, Nov 12, 2001 at 05:13:40PM +0900, Han-Seong Kim wrote:
> I want to ask about Power-Mnagement on mips.
> 1. Is it possible to use power mgnt (ex. apm,acpi) features of linux kernel?
Both are PC stuff, so no.
> 2.If no, how can manage CPU and Bidge chips for power mgnt ?
Right now Linux/MIPS will only use the CPU's power managment features, that
is the wait instruction or similar.