[src/trunk]: src/sys/arch/sparc64/dev adjust some comments to reality.

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ae9282f6d479
branches:  trunk
changeset: 504369:ae9282f6d479
user:      mrg <mrg%NetBSD.org@localhost>
date:      Wed Feb 28 15:21:08 2001 +0000

description:
adjust some comments to reality.

diffstat:

 sys/arch/sparc64/dev/psycho.c |  23 +++++++++++------------
 1 files changed, 11 insertions(+), 12 deletions(-)

diffs (47 lines):

diff -r 8f5d2bba57e0 -r ae9282f6d479 sys/arch/sparc64/dev/psycho.c
--- a/sys/arch/sparc64/dev/psycho.c     Wed Feb 28 15:17:48 2001 +0000
+++ b/sys/arch/sparc64/dev/psycho.c     Wed Feb 28 15:21:08 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: psycho.c,v 1.29 2001/02/11 00:02:58 eeh Exp $  */
+/*     $NetBSD: psycho.c,v 1.30 2001/02/28 15:21:08 mrg Exp $  */
 
 /*
  * Copyright (c) 1999, 2000 Matthew R. Green
@@ -249,12 +249,10 @@
         * (0) per-PBM PCI configuration space, containing only the
         *     PBM 256-byte PCI header
         * (1) the shared psycho configuration registers (struct psychoreg)
-        *
-        * XXX use the prom address for the psycho registers?  we do so far.
         */
        sc->sc_regs = (struct psychoreg *)(u_long)ma->ma_address[0];
        sc->sc_basepaddr = (paddr_t)ma->ma_reg[0].ur_paddr;
-       sc->sc_ign = 0x7c0; /* XXX - try not to hardcode? */
+       sc->sc_ign = 0x7c0; /* APB IGN is always 0x7c */
 
        /* who? said a voice, incredulous */
        sc->sc_mode = PSYCHO_MODE_SABRE;
@@ -419,14 +417,15 @@
 
 /*
  * SUNW,psycho initialisation ..
- *     - XXX what do we do here?
- *
- * i think that an attaching psycho should here find it's partner psycho
- * and if they haven't been attached yet, allocate both psycho_pbm's and
- * fill them both in here, and when the partner attaches, there is little
- * to do... perhaps keep a static array of what psycho have been found so
- * far (or perhaps those that have not yet been finished).  .mrg.
- * note that the partner can be found via matching `ranges' properties.
+ *     - find the per-psycho registers
+ *     - figure out the IGN.
+ *     - find our partner psycho
+ *     - configure ourselves
+ *     - bus range, bus, 
+ *     - get interrupt-map and interrupt-map-mask
+ *     - setup the chipsets.
+ *     - if we're the first of the pair, initialise the IOMMU, otherwise
+ *       just copy it's tags and addresses.
  */
 static void
 psycho_init(sc, ma, pba)