From mboxrd@z Thu Jan 1 00:00:00 1970 From: jbe@pengutronix.de (Juergen Borleis) Date: Wed, 15 Nov 2017 10:53:12 +0100 Subject: DryIce , RTC not working on imx53. In-Reply-To: <201711141343.15309.jbe@pengutronix.de> References: <3BB206AB2B1BD448954845CE6FF69A8E01B8E754AA@NT-Mail07.beckhoff.com> <20171114105517.74ycmwcjsab7xp2j@piout.net> <201711141343.15309.jbe@pengutronix.de> Message-ID: <201711151053.13676.jbe@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi all, On Tuesday 14 November 2017 13:43:14 Myself wrote: > On Tuesday 14 November 2017 11:55:17 Alexandre Belloni wrote: > > On 14/11/2017 at 08:33:09 -0200, Fabio Estevam wrote: > > > On Tue, Nov 14, 2017 at 8:26 AM, Alexandre Belloni > > > > > > wrote: > > > >> I have the impression that the dryice driver has never worked in > > > >> mainlune for mx53. > > > > > > > > I doubt that because it seems to have been used by Pengutronix. > > > > > > Juergen can confirm, but it seems the dryice driver was only used on > > > mx25 in mainline. > > > > Ok, that would explain it. > > Yes. The development was made on an i.MX25. But currently I have an > i.MX53 on my desk here and could test... After a quick look into the reference manuals: Patch 5b72505 ("ARM: dts: imx53: add srtc node") is bad. The i.MX53 provides an RTC more close to the i.MX6 instead (e.g. rtc-snvs.c). But unfortunately it uses a different register layout than the i.MX6 does. So we can't use this driver without i.MX53 specific adaptions. But at least 5b72505 should be reverted. jb -- Pengutronix e.K. ? ? ? ? ? ? ? ? ? ? ? ? ?? ?| Juergen Borleis ? ? ? ? ? ? | Industrial Linux Solutions ? ? ? ? ? ? ? ?? ?| http://www.pengutronix.de/ ?|