From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 30.mail-out.ovh.net ([213.186.62.213]) by canuck.infradead.org with smtp (Exim 4.72 #1 (Red Hat Linux)) id 1P87bo-00011I-O6 for barebox@lists.infradead.org; Tue, 19 Oct 2010 08:31:49 +0000 Date: Tue, 19 Oct 2010 10:29:21 +0200 From: Jean-Christophe PLAGNIOL-VILLARD Message-ID: <20101019082921.GM11127@game.jcrosoft.org> References: <1287474532-31528-1-git-send-email-marek.belisko@gmail.com> <201010191028.28405.jbe@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <201010191028.28405.jbe@pengutronix.de> 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] Add basic support for mini2440 dev board. To: Juergen Beisert Cc: barebox@lists.infradead.org On 10:28 Tue 19 Oct , Juergen Beisert wrote: > Marek Belisko wrote: > > This work is mainly based on a9m2440 board implementation > > from Juergen Beisert . Functionality > > was tested only running barebox from ram. Loading to flash > > and booting will not work because missing lowlevel_init > > functionality (lack of jtag debugger on my side ;)). > > I have now access to a mini2440 at Pengutronix. I will add this feature soon. > > > [...] > > +static int mini2440_devices_init(void) > > +{ > > + uint32_t reg; > > + > > + reg = readl(BWSCON); > > + > > + /* CS#4 to access the network controller */ > > + reg &= ~0x000f0000; > > + reg |= 0x000d0000; /* 16 bit */ > > + writel(0x1f4c, BANKCON4); > > + > > + writel(reg, BWSCON); > > + > > + /* release the reset signal to external devices */ > > + reg = readl(MISCCR); > > + reg |= 0x10000; > > + writel(reg, MISCCR); > > + > > + register_device(&nand_dev); > > + register_device(&sdram_dev); > > + register_device(&dm9000_dev); > > +#ifdef CONFIG_NAND > > + /* ----------- add some vital partitions -------- */ > > + devfs_del_partition("self_raw"); > > + devfs_add_partition("nand0", 0x00000, 0x40000, PARTITION_FIXED, > > "self_raw"); + dev_add_bb_dev("self_raw", NULL); > > + > > + devfs_del_partition("env_raw"); > > + devfs_add_partition("nand0", 0x40000, 0x20000, PARTITION_FIXED, > > "env_raw"); + dev_add_bb_dev("env_raw", NULL); > > +#endif > > + armlinux_add_dram(&sdram_dev); > > + armlinux_set_bootparams((void *)sdram_dev.map_base + 0x100); > > + armlinux_set_architecture(MACH_TYPE_MINI2440); > > + > > + return 0; > > +} > > We need some kind of management here, because the mini2440 comes with NOR and > NAND flash. And both can be configured to boot the system from: We need a > location to store the environment. Maybe in NOR, when booting from NOR, and > in NAND, when booting form NAND? Or only one single location where to store > the environment, independent from the boot source? Ideas? I like the idea to store in the boot media Best Regards, J. _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox