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 canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QnoVc-0004md-6N for barebox@lists.infradead.org; Mon, 01 Aug 2011 09:10:01 +0000 Date: Mon, 1 Aug 2011 11:09:56 +0200 From: Sascha Hauer Message-ID: <20110801090956.GG31404@pengutronix.de> References: <1312175092-26164-1-git-send-email-plagnioj@jcrosoft.com> <20110801080530.GA31404@pengutronix.de> <20110801080545.GD6255@game.jcrosoft.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20110801080545.GD6255@game.jcrosoft.org> 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-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH] arm: introduce arm_add_mem_device to register dram device To: Jean-Christophe PLAGNIOL-VILLARD Cc: barebox@lists.infradead.org On Mon, Aug 01, 2011 at 10:05:45AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote: > On 10:05 Mon 01 Aug , Sascha Hauer wrote: > > On Mon, Aug 01, 2011 at 07:04:52AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote: > > > this will automaticaly register the device to armlinux_add_dram > > > > > > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD > > > --- > > > diff --git a/include/driver.h b/include/driver.h > > > index b011f98..0faafe3 100644 > > > --- a/include/driver.h > > > +++ b/include/driver.h > > > @@ -214,6 +214,11 @@ static inline struct device_d *add_mem_device(const char *name, resource_size_t > > > IORESOURCE_MEM | flags, NULL); > > > } > > > > > > +#ifdef CONFIG_ARM > > > +struct device_d *arm_add_mem_device(const char* name, resource_size_t start, > > > + resource_size_t size); > > > +#endif > > > + > > > > No ifdefs around function declarations please. Also, this should > > go somewhere under arch/arm/include. > armlinux? > > > > BTW this conflicts with my mmu series I recently sent. Having this > > arm_add_mem_device function is a good thing, but now one of us has > > to do his series again :( > > > For the mmu to just work on all boards I need a place where I know > > that all memory has been registered. For this I wanted to introduce > > a memory_initcall (we could also reuse console_initcall, but I thought > > having a dedicated initcall is cleaner). Then I could initialize the > > mmu in a later initcall. > I known but I wish we drop the mmu_init in the board at all > and manage it in a generic part That's my goal aswell, but the mmu init needs to be done when the memory is registered but still no driver uses dma_alloc_coherent. Currently this place does not exist since every board does the memory registration at some random place. The mmu code can't remap sdram without knowing where it is. 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