From owner-freebsd-ppc@FreeBSD.ORG  Sat Jun  2 15:22:07 2012
Return-Path: <owner-freebsd-ppc@FreeBSD.ORG>
Delivered-To: powerpc@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id D535E1065670
	for <powerpc@freebsd.org>; Sat,  2 Jun 2012 15:22:07 +0000 (UTC)
	(envelope-from marcelm@juniper.net)
Received: from exprod7og111.obsmtp.com (exprod7og111.obsmtp.com [64.18.2.175])
	by mx1.freebsd.org (Postfix) with ESMTP id 2C2198FC0A
	for <powerpc@freebsd.org>; Sat,  2 Jun 2012 15:22:05 +0000 (UTC)
Received: from P-EMHUB01-HQ.jnpr.net ([66.129.224.36]) (using TLSv1) by
	exprod7ob111.postini.com ([64.18.6.12]) with SMTP
	ID DSNKT8ovloD3+QfRa+UOTlIXDgg97PgC7voq@postini.com;
	Sat, 02 Jun 2012 08:22:07 PDT
Received: from EMBX01-HQ.jnpr.net ([fe80::c821:7c81:f21f:8bc7]) by
	P-EMHUB01-HQ.jnpr.net ([fe80::fc92:eb1:759:2c72%11]) with mapi;
	Sat, 2 Jun 2012 08:21:05 -0700
From: Marcel Moolenaar <marcelm@juniper.net>
To: "powerpc@freebsd.org" <powerpc@freebsd.org>
Date: Sat, 2 Jun 2012 08:21:06 -0700
Thread-Topic: [P2020] FreeBSD cannot enable 2nd core.
Thread-Index: Ac1A01Nv0CGznz9mQOSWv9H+qLdsUg==
Message-ID: <9F7F498C-22D3-4D6D-8242-019FB36B998A@juniper.net>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
acceptlanguage: en-US
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Cc: 
Subject: [P2020] FreeBSD cannot enable 2nd core.
X-BeenThere: freebsd-ppc@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Porting FreeBSD to the PowerPC <freebsd-ppc.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ppc>,
	<mailto:freebsd-ppc-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ppc>
List-Post: <mailto:freebsd-ppc@freebsd.org>
List-Help: <mailto:freebsd-ppc-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ppc>,
	<mailto:freebsd-ppc-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 02 Jun 2012 15:22:07 -0000

All,

I'm running into a weird issue where the 2nd core of a P2020 SoC isn't bein=
g woken
up by FreeBSD.  If I manually frob the EEBPCR register from the U-Boot prom=
pt I see
that the second core is booting U-Boot (after which things go bad obviously=
).  But
from FreeBSD I don't seem to be able to get a kick.  The only real differen=
ce I see
between U-Boot and FreeBSD is that in FreeBSD we need to program the BPTR r=
egister
to have the boot page mapped to where the kernel is loaded. But I have no r=
eason to
suspect that this is in any way related to why I can't bring the 2nd core u=
p.
BTW: The logic in FreeBSD worked fine on a P1020.

Does anyone know of any erratas I should be concerned about or have had sim=
ilar
experiences they can share.

Thanks,

--=20
Marcel Moolenaar
marcelm@juniper.net