Subject: Re: MP, SP, extintr, mc, ofb
To: Michael <macallan18@earthlink.net>
From: Tim Kelly <hockey@dialectronics.com>
List: port-macppc
Date: 12/14/2004 11:02:38
At 10:23 AM -0500 12/14/04, Michael wrote:
>I only see the 7455s differ in flag - pfCanNap vs. pfWillNap vs nothing,
>the 7400 and the G3 has pfCanDoze and pfCanNap. So it's clear why the 745x
>are excluded - no doze mode. But the 7455 v2.1 and the 7457 should be
>included for nap mode.
According to MPC7455 User's Manual, the bit defined as HID_DOZE in
arch/powerpc/include/oea/hid.h is not DOZE mode for this family. It is
HIGH_BAT_ENABLE, for additional address space mapping. This gets turned off
on cpu_subr.c
/* Select NAP mode. */
hid0 &= ~(HID0_DOZE | HID0_NAP | HID0_SLEEP);
hid0 |= HID0_NAP | HID0_DPM;
tim