From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wg0-f53.google.com ([74.125.82.53]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YIKKt-0006mB-Ha for barebox@lists.infradead.org; Mon, 02 Feb 2015 16:58:56 +0000 Received: by mail-wg0-f53.google.com with SMTP id a1so39820006wgh.12 for ; Mon, 02 Feb 2015 08:58:33 -0800 (PST) MIME-Version: 1.0 Date: Mon, 2 Feb 2015 09:58:33 -0700 Message-ID: From: Doug Brainard 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: Passing kernel arguments - SAMA5D4EK To: barebox@lists.infradead.org Hello all, I've been following barebox for a few months and working with the SAMA5D4EK and barebox for about a week now. I'm trying to successfully boot into Android with it. I am able to do so with u-boot, and so I'm trying to figure out how to match the bootargs, so that I can transfer over to barebox. u-boot sends the following: Kernel command line: console=ttyS0,115200 mtdparts=atmel_nand:8M(Bootstrap),176M(system),304M(userdata),-(cache) ubi.mtd=2 ubi.mtd=3 ubi.mtd=4 rw root=ubi0:system systemtype=ubifs init=/init androidboot.hardware=sama5-pda androidboot.lcd=wvga androidboot.console=ttyS0 barebox sends the following: Kernel command line: console=ttyS0,115200 init=/init androidboot.hardware=sama5-pda androidboot.lcd=wvga androidboot.console=ttyS0 ip=dhcp root=ubi0:system ubi.mtd=8 rootfstype=ubifs noinitrd mtdparts=atmel_nand:256k(at91bootstrap),512k(barebox)ro,256k(bareboxenv),256k(bareboxenv2),256k(spare),512k(oftree),6M(kernel),8M(recovery),176M(system),304M(userdata),-(cache) The problem has to do with "ubi.mtd=2 ubi.mtd=3 ubi.mtd=4". Without 3 sections mounted, Android is missing pieces. I've figured out that rootfs_mtdblock_nand sets the ubi.mtd, and I changed it to 8, because I broke up the first 8M that u-boot didn't. If I just add "ubi.mtd=9 ubi.mtd=10" to the bootargs, they are out order, and that also messes things up. Commenting out rootfs_mtdblock_nand leaves a "ubi.mtd=" in the command line. Frankly, I'm confused where rootfs_mtdblock_nand is defined. I'd love to just define userdata_mtdblock_nand, etc. and have the information filled in, but I'm not seeing where that is done, and the documentation (that I've found) doesn't mention anything like that. Also, where is "noinitrd" coming from? If I were to match u-boot, it should be "rw". Finally, is there a list of keywords (like rootfs_mtdblock_nand, ubiroot, etc.) you can use in the config file? I appreciate you helping a newbie out. Below is my current config file: #!/bin/sh # use 'dhcp' to do dhcp in barebox and in kernel # use 'none' if you want to skip kernel ip autoconfiguration ip=dhcp # or set your networking parameters here #eth0.ipaddr=a.b.c.d #eth0.netmask=a.b.c.d #eth0.gateway=a.b.c.d #eth0.serverip=a.b.c.d # can be either 'nfs', 'tftp', 'nor' or 'nand' kernel_loc=nand # can be either 'net', 'nor', 'nand' or 'initrd' rootfs_loc=nand # can be either 'nfs', 'tftp', 'nand' or empty oftree_loc=nand # can be either 'jffs2' or 'ubifs' rootfs_type=ubifs rootfsimage=root.$rootfs_type ubiroot=system # The image type of the kernel. Can be uimage, zimage, raw, or raw_lzo kernelimage=zImage #kernelimage=uImage #kernelimage=Image #kernelimage=Image.lzo nand_device=atmel_nand nand_parts="256k(at91bootstrap),512k(barebox)ro,256k(bareboxenv),256k(bareboxenv2),256k(spare),512k(oftree),6M(kernel),176M(system),304M(userdata),-(cache)" rootfs_mtdblock_nand=7 #m25p80_parts="64k(bootstrap),384k(barebox),256k(bareboxenv),256k(bareboxenv2),128k(oftree),-(updater)" autoboot_timeout=3 bootargs="console=ttyS0,115200 init=/init androidboot.hardware=sama5-pda androidboot.lcd=wvga androidboot.console=ttyS0" # set a fancy prompt (if support is compiled in) PS1="\e[1;32mbarebox@\e[1;31m\h:\w\e[0m\n# " _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox