From mboxrd@z Thu Jan 1 00:00:00 1970 From: broonie@opensource.wolfsonmicro.com (Mark Brown) Date: Tue, 5 Jun 2012 13:40:37 +0100 Subject: Freescale fec.c driver breakage In-Reply-To: <4FCDFD4E.1000906@snapgear.com> References: <4FCC3CB4.5030107@snapgear.com> <20120604081937.GH30400@pengutronix.de> <20120604091616.GA3943@opensource.wolfsonmicro.com> <4FCDAD5B.8010106@snapgear.com> <20120605094141.GE23408@opensource.wolfsonmicro.com> <4FCDF8BE.6010509@snapgear.com> <20120605122444.GS23408@opensource.wolfsonmicro.com> <4FCDFD4E.1000906@snapgear.com> Message-ID: <20120605124037.GT23408@opensource.wolfsonmicro.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Jun 05, 2012 at 10:36:30PM +1000, Greg Ungerer wrote: > I am pretty sure AHB was bolted on later. This FEC core has progressed > from very old Motorola PowerPC platforms to ColdFire/M68k to ARM, over > something coming close to a 20 year period. In the earlier uses of it > there is quite a few differences (including some quite odd register > layout differences). > There may be other things that are somewhat like an ahb clock and ipg > clock, but really these are things that have come along later with a > specific platform implementation. For AHB that sounds plausible, but for the IPG clock (assuming I've identified the function correctly) I've got a very hard time believing that the IP ever didn't need a clock - my understanding is that it's the master clock for the IP ("IP gate"). -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 836 bytes Desc: Digital signature URL: