From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id 11BCCB70B7 for ; Sun, 7 Jun 2009 18:21:33 +1000 (EST) Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [92.198.50.35]) by ozlabs.org (Postfix) with ESMTP id 75F4CDDD04 for ; Sun, 7 Jun 2009 18:21:32 +1000 (EST) Date: Sun, 7 Jun 2009 10:20:56 +0200 From: Wolfram Sang To: John Rigby Subject: Re: [PATCH 05/04] *** NOT FOR RELEASE *** HACK *** Work around MII clock issue *** Message-ID: <20090607082056.GA6385@pengutronix.de> References: <1241641262-5202-1-git-send-email-wd@denx.de> <1241641262-5202-6-git-send-email-wd@denx.de> <4b73d43f0905071909v6e6e8b2el9eb6d4a1b9038f45@mail.gmail.com> <20090606221618.701E0832E416@gemini.denx.de> <4b73d43f0906061527p7ca1b301ybcfc576870a168d5@mail.gmail.com> <20090606232148.4E0BD832E416@gemini.denx.de> <4b73d43f0906061708o763409d0u10a344dfc30e32c1@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="k1lZvvs/B4yU6o8G" In-Reply-To: <4b73d43f0906061708o763409d0u10a344dfc30e32c1@mail.gmail.com> Cc: linuxppc-dev@ozlabs.org, Chen Hongjun , Wolfgang Denk List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --k1lZvvs/B4yU6o8G Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > My best guess is still that it is ips clock. I think I stated in a I fully agree. a) Table 16-18 in the manual mentions ips and the values given there look m= uch more like ips than ppc_proc_freq (25MHz?) b) the excerpt from clock.c Wolfgang posted mentions ips as parent c) I cannot imagine a divider wrapping around at a frequency which is insid= e the range of what the processor is capable of. MII only up to 300MHz seems l= ike a show-stopper to me :) d) According to the MPC5200B-manual, ipb _is_ used there (and the linux-dri= ver adheres to that). I'd guess those two CPUs are related enough to assume = it is ips here. Regards, Wolfram --=20 Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | --k1lZvvs/B4yU6o8G Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkoreGgACgkQD27XaX1/VRu8jgCfX+aDxj1AXC5JtxivFzrirkSF wsAAoIu3EpnJCXIp2qOMV1pJLJwFG9y2 =1Gkq -----END PGP SIGNATURE----- --k1lZvvs/B4yU6o8G--