From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X02ep-0000nN-0X for barebox@lists.infradead.org; Thu, 26 Jun 2014 05:55:39 +0000 Date: Thu, 26 Jun 2014 07:55:16 +0200 From: Sascha Hauer Message-ID: <20140626055516.GV15686@pengutronix.de> References: <20140618195849.GL15686@pengutronix.de> <20140623074308.GU15686@pengutronix.de> <20140623165754.GA27898@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: i.MX6 frame buffer inside barebox? To: Holger Schurig Cc: "barebox@lists.infradead.org" On Wed, Jun 25, 2014 at 03:46:28PM +0200, Holger Schurig wrote: > I just noticed that simplefb wouldn't work with i.MX6 anyway, even if > I adapt it. > > When I setup the framebuffer from barebox and display a splash and > then boot into Linux, then my framebuffer vanishes. Even when I don't > have simplefb or ipu enabled. > > I think (!) the reason is the clock framework.The clocks for the IPU > are turned off, and so I don't see anything anymore (this is, however, > a wild assumption, I haven't checked it yet). You're probably right. You could check that with passing 'clk_ignore_unused' to the kernel. Indeed I remember that we tweaked the clocks in a project we used simplefb in. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox