From mboxrd@z Thu Jan 1 00:00:00 1970 From: Birin Sanchez Subject: Help on getting serial output on the arndale board Date: Tue, 18 Jun 2013 05:39:54 +0200 Message-ID: <51BFD68A.60206@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org Hi, Now that the Arndale board is supported in upstream Xen I don't get any output on the serial console. I followed the instructions on the wiki with no luck: The xen repository I'm using is: git://xenbits.xen.org/xen.git last commit: 61c6dfce3296da2643c4c4f90eaab6fa3c1cf8b3 The linux repository is: git://xenbits.xen.org/people/julieng/linux-arm.git last commit: 3f35c6f2b805901fbde2ce7553478a8cd4249a33 The linux-domU repository is the same but branch arndale-domU-3.9: git://xenbits.xen.org/people/julieng/linux-arm.git last commit: 510c35298dfbb6ccb0d883cb34a27eff2f291cea I tried to add 'CONFIG_EARLY_PRINTK = exynos5250' and 'debug=y' in .config file and in Config.mk but still no output. This is all I get: U-Boot 2012.10-rc1-g0faa5ad-dirty (May 01 2013 - 23:42:46) for ARNDALE5250 CPU: Exynos5250@1000MHz Board: for ARNDALE5250 I2C: ready DRAM: 2 GiB WARNING: Caches not enabled Checking Boot Mode ... SDMMC MMC: EXYNOS DWMMC: 0, EXYNOS DWMMC: 1, EXYNOS DWMMC: 2 SATA: AHCI 0001.0300 32 slots 1 ports ? Gbps 0x1 impl SATA mode flags: ncq stag pm led clo only pmp pio slum part No port device detected! In: serial Out: serial Err: serial (Re)start USB... USB: Register 1313 NbrPorts 3 USB EHCI 1.00 scanning bus for devices... 4 USB Device(s) found scanning bus for storage devices... 0 Storage Device(s) found scanning bus for ethernet devices... 1 Ethernet Device(s) found Hit any key to stop autoboot: 0 Waiting for Ethernet connection... done. Using asx0 device TFTP from server 192.168.1.10; our IP address is 192.168.1.2 Filename '/linux-zImage'. Load address: 0x60000000 Loading: ################################################################# ################################################################# ############# done Bytes transferred = 2086904 (1fd7f8 hex) Waiting for Ethernet connection... done. Using asx0 device TFTP from server 192.168.1.10; our IP address is 192.168.1.2 Filename '/xen-uImage'. Load address: 0x50000000 Loading: ############################################################ done Bytes transferred = 867400 (d3c48 hex) ## Booting kernel from Legacy Image at 50000000 ... Image Name: Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 867336 Bytes = 847 KiB Load Address: 80200000 Entry Point: 80200000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Startingggggggggggggggg- UART enabled - - CPU 00000000 booting - - Started in Hyp mode - - Zero BSS - - Setting up control registers - - Turning on paging - - Ready - RAM: 0000000040000000 - 00000000bfffffff MODULE[1]: 0000000060000000 - 0000000060400000 Placing Xen at 0x00000000bfe00000-0x00000000c0000000 Xen heap: 262144 pages Dom heap: 262144 pages - CPU 00000001 booting - - Started in Secure state - - Entering Hyp mode - - Setting up control registers - - Turning on paging - - Ready - What am I missing? Cheers, Birin