From patchwork Fri Nov 21 01:26:29 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suriyan Ramasami X-Patchwork-Id: 412932 X-Patchwork-Delegate: promsoft@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 0CF7814011E for ; Fri, 21 Nov 2014 12:26:50 +1100 (AEDT) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 19CAF4B7FF; Fri, 21 Nov 2014 02:26:46 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QXRmX35Klatp; Fri, 21 Nov 2014 02:26:45 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 507284B7F3; Fri, 21 Nov 2014 02:26:45 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id E8E614B7F3 for ; Fri, 21 Nov 2014 02:26:40 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9cIIvEn7mM2q for ; Fri, 21 Nov 2014 02:26:40 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail-pd0-f179.google.com (mail-pd0-f179.google.com [209.85.192.179]) by theia.denx.de (Postfix) with ESMTPS id 545A54B7F0 for ; Fri, 21 Nov 2014 02:26:37 +0100 (CET) Received: by mail-pd0-f179.google.com with SMTP id w10so4205169pde.10 for ; Thu, 20 Nov 2014 17:26:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=r63PUG1muSEuUv0zzck1m9ianuhvKpxIqoefsNjrTWo=; b=KNo/fwerstRcgIF8lRBF0ifz1N9sMFQ1H8vviZ0EQUt6lu1xUVY0p5sXd1oQMsyUSR 3nPBH+BAJNqajfwHYXlrKXv8FelV9+veiFMMAWdeFejgdUOXRAnG3tIbTw8C28qFL2Bc lTbnJzG8fQdCMMXjLgmPjlQPWIXLCUWLaOCw5ZRynmySlRH/WVSD5Hd0Ppg1Pty4yOsn RW/XxfHuxnryWBOaIZ8kZUI4mdkFd5F2MbUMz9xJbXNq6Anq/lE7NwvuKDksgChF1mLd EcIfOw+/YAX3rbQ8UrJ/PG8AxkrGwRf3CIYZH3GSimGdlC67rZj7M6loWkHGfIoX+3nT 7+2w== X-Received: by 10.66.218.42 with SMTP id pd10mr1788100pac.151.1416533195700; Thu, 20 Nov 2014 17:26:35 -0800 (PST) Received: from Stealth.localdomain ([73.170.223.86]) by mx.google.com with ESMTPSA id pc8sm3140545pdb.54.2014.11.20.17.26.33 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 20 Nov 2014 17:26:34 -0800 (PST) From: Suriyan Ramasami To: Przemyslaw Marczak Date: Thu, 20 Nov 2014 17:26:29 -0800 Message-Id: <1416533190-10662-1-git-send-email-suriyan.r@gmail.com> X-Mailer: git-send-email 1.8.3.1 Cc: Suriyan Ramasami , u-boot@lists.denx.de Subject: [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.13 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de Add information wrt using the USB host interface for loading kernel over ethernet and/or usb mass storage. Signed-off-by: Suriyan Ramasami Acked-by: Przemyslaw Marczak --- Changes in v2: - Make updates to be of use from a user's perspective Series-changes: 1 - Add USB host notes for the Odroid doc/README.odroid | 169 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 169 insertions(+) diff --git a/doc/README.odroid b/doc/README.odroid index 528bb95..25b962b 100644 --- a/doc/README.odroid +++ b/doc/README.odroid @@ -141,3 +141,172 @@ And the boot sequence is: - boot_fit - if "Image.itb" exists - boot_zimg - if "zImage" exists - boot_uimg - if "uImage" exists + +11. USB host support +==================== + +The ethernet can be accessed after starting the USB subsystem in U-Boot. +The adapter does not come with a preconfigured MAC address, and hence it needs +to be set before starting USB. +setenv usbethaddr 02:DE:AD:BE:EF:FF + +Note that in this example a locally managed MAC address is chosen. Care should +be taken to make these MAC addresses unique within the same subnet. + +Start the USB subsystem: +Odroid # setenv usbethaddr 02:DE:AD:BE:EF:FF +Odroid # usb start +(Re)start USB... +USB0: USB EHCI 1.00 +scanning bus 0 for devices... 4 USB Device(s) found + scanning usb for storage devices... 1 Storage Device(s) found + scanning usb for ethernet devices... 1 Ethernet Device(s) found +Odroid # + +Automatic IP assignment: +------------------------ +If the ethernet is connected to a DHCP server (router maybe with DHCP enabled), +then the below will automatically assign an ip address through DHCP. +setenv autoload no +dhcp + +Odroid # setenv autoload no +Odroid # dhcp +Waiting for Ethernet connection... done. +BOOTP broadcast 1 +DHCP client bound to address 192.168.1.10 (524 ms) +Odroid # + +Note that this automatically sets the many IP address related variables in +U-Boot that is obtained from the DHCP server. + +Odroid # printenv ipaddr netmask gatewayip dnsip +ipaddr=192.168.1.10 +netmask=255.255.255.0 +gatewayip=192.168.1.1 +dnsip=192.168.1.1 + +Ping example: +The ping command can be used a test to check connectivity. In this example, +192.168.1.27 is a pingable server in the network. +Odroid # ping 192.168.1.27 +Waiting for Ethernet connection... done. +Using sms0 device +host 192.168.1.27 is alive +Odroid # + +Static IP assignment: +--------------------- +In the case where there are no DHCP servers in the network, or you want to +set the IP address statically, it can be done by: +Odroid # setenv ipaddr 192.168.1.10 +Odroid # ping 192.168.1.27 +Waiting for Ethernet connection... done. +Using sms0 device +host 192.168.1.27 is alive + +TFTP booting: +------------- +Say there exists a tftp server in the network with address 192.168.1.27 and +it serves a kernel image (zImage.3.17) and a DTB blob (exynos4412-odroidu3.dtb) +that needs to be loaded and booted. It can be accomplished as below: +(Assumes that you have setenv usbethaddr, and have not set autoload to no) + +Odroid # setenv serverip 192.168.1.27 +Odroid # tftpboot 0x40080000 zImage.3.17 +Waiting for Ethernet connection... done. +Using sms0 device +TFTP from server 192.168.1.27; our IP address is 192.168.1.10 +Filename 'zImage.3.17'. +Load address: 0x40080000 +Loading: ################################################################# + ################################################################# + ################################################################# + ####################### + 52.7 KiB/s +done +Bytes transferred = 3194200 (30bd58 hex) +Odroid # tftpboot 0x42000000 exynos4412-odroidu3.dtb +Waiting for Ethernet connection... done. +Using sms0 device +TFTP from server 192.168.1.27; our IP address is 192.168.1.10 +Filename 'exynos4412-odroidu3.dtb'. +Load address: 0x42000000 +Loading: #### + 40 KiB/s +done +Bytes transferred = 46935 (b757 hex) +Odroid # printenv bootargs +bootargs=Please use defined boot +Odroid # setenv bootargs console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait +Odroid # bootz 40080000 - 42000000 +Kernel image @ 0x40080000 [ 0x000000 - 0x30bd58 ] +## Flattened Device Tree blob at 42000000 + Booting using the fdt blob at 0x42000000 + Loading Device Tree to 4fff1000, end 4ffff756 ... OK + +Starting kernel ... + +[ 0.000000] Booting Linux on physical CPU 0xa00 +... etc ... + +In the above example you can substitute 'dhcp' for 'tftpboot' as well. + +USB Storage booting: +-------------------- +Similarly we can use the USB storage to load the kernel image/initrd/fdt etc +and boot. For this example, there is a USB drive plugged in. It has a FAT +1st partition and an EXT 2nd partition. Using the generic FS (ls/load) makes +it even easier to work with FAT/EXT file systems. +For this example the second EXT partition is used for booting and as rootfs. +The boot files - kernel and the dtb are present in the /boot directory of the +second partition. + +Odroid # usb start +(Re)start USB... +USB0: USB EHCI 1.00 +scanning bus 0 for devices... 4 USB Device(s) found + scanning usb for storage devices... 1 Storage Device(s) found + scanning usb for ethernet devices... +Error: sms0 address not set. <----- Note the error as usbethaddr +Warning: failed to set MAC address <----- is not set. +1 Ethernet Device(s) found +Odroid # usb part 0 + +Partition Map for USB device 0 -- Partition Type: DOS + +Part Start Sector Num Sectors UUID Type + 1 3072 263168 000c4046-01 06 + 2 266240 13457408 000c4046-02 83 + +Odroid # ls usb 0:2 /boot + 4096 . + 4096 .. + 353 boot.scr + 281 boot.txt + 101420 config-3.8.13.23 + 2127254 initrd.img-3.8.13.23 + 2194825 uInitrd + 2194825 uInitrd-3.8.13.23 + 2453112 zImage + 101448 config-3.8.13.26 + 2127670 uInitrd-3.8.13.26 + 2127606 initrd.img-3.8.13.26 + 3194200 zImage.3.17 <--- Kernel + 46935 exynos4412-odroidu3.dtb <--- DTB +Odroid # load usb 0:2 40080000 /boot/zImage.3.17 +3194200 bytes read in 471 ms (6.5 MiB/s) +Odroid # load usb 0:2 42000000 /boot/exynos4412-odroidu3.dtb +46935 bytes read in 233 ms (196.3 KiB/s) +Odroid # setenv bootargs console=ttySAC1,115200n8 root=/dev/sda2 rootwait +Odroid # bootz 40080000 - 42000000 +Kernel image @ 0x40080000 [ 0x000000 - 0x30bd58 ] +## Flattened Device Tree blob at 42000000 + Booting using the fdt blob at 0x42000000 + Loading Device Tree to 4fff1000, end 4ffff756 ... OK + +Starting kernel ... + +[ 0.000000] Booting Linux on physical CPU 0xa00 + +Please refer to README.usb for additional information.