From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from WA4EHSOBE001.bigfish.com (outbound-wa4.frontbridge.com [216.32.181.16]) by ozlabs.org (Postfix) with ESMTP id 8A733DDEE2 for ; Wed, 31 Dec 2008 05:16:42 +1100 (EST) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: virtex uImage and serial ports Date: Tue, 30 Dec 2008 11:16:34 -0700 In-Reply-To: <1230158881.82162837@192.168.1.35> References: <1230158881.82162837@192.168.1.35> From: John Linn To: "Joshua Lamorie" , Message-ID: <20081230181636.49A821BA0065@mail222-wa4.bigfish.com> List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Joshua, Have you looked at our wiki site at http://xilinx.wikidot.com as we quite a bit of information there. The ML405 board is a V2Pro chip so it should be pretty close to what you want using the default kernel config for virtex4. I haven't tested the console at 115,200 as I use it at 9600. Shouldn't be a problem, but may not hurt to stay at 9600 to get it working. There are pages on the wiki about using u-boot with the kernel also as it sounds like that's what you're doing. Thanks, John > -----Original Message----- > From: linuxppc-embedded-bounces+john.linn=3Dxilinx.com@ozlabs.org [mailto:linuxppc-embedded- > bounces+john.linn=3Dxilinx.com@ozlabs.org] On Behalf Of Joshua Lamorie > Sent: Wednesday, December 24, 2008 3:48 PM > To: linuxppc-embedded@ozlabs.org > Subject: virtex uImage and serial ports > = > Gidday there, > = > I am trying to get 2.6.27(ish) running on my custom Virtex-II Pro platform (I call it Q5). I already > have many years of running 2.4.26 and booting from u-boot. > = > The problem is getting the console running. I have a device tree blob built and loaded into memory, > and by peeking at __log_buf I can see that it is reading this okay (i.e. it is correctly finding my > interrupt controller). However, by the time it goes to mount the ramdisk as root, it complains that > there is no console. > = > I'm fairly certain /chosen has stdout pointing to the correct UART, and the console arguments are > ttyS0,115200. > = > In looking through the code however, I cannot figure out how the uImage code actually initializes the > serial-ports for the XILINX_VIRTEX_GENERIC_BOARD. As I understand it, the only place where > serial_console_init is called, is within platform_init, and this isn't called for uImage. > = > So, three questions. > = > 1) How is the serial driver supposed to know where the platforms serial ports are? > = > 2) If I wanted to scrap u-boot and just copy kernel/ramdisk/dtb to memory, which kernel make target > should I use? dtbImage, simpleImage? > = > 3) What is the best, most modern image to build that should be used by u-boot? > = > Thanks in advance > = > Joshua > = > p.s. I've been trying with kernel.org mainline, xilinx git and denx ELDK xenomai (2.6.24). U-boot is > built from latest git source. DTS file built from XPS 9.1i with latest service packs, and turned > into DTB with latest dtc source from git. > = > = > -- > Xiphos Technologies > (514) 847-9474 x227 > (514) 848-9644 fax > = > www.xiphos.com > _______________________________________________ > The information transmitted is intended only for the > person or entity to which it is addressed and may contain > confidential and/or privileged material. If you have > received this in error, please contact the sender and delete > this communication and any copy immediately. Thank you. > = > = > = > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded This email and any attachments are intended for the sole use of the named r= ecipient(s) and contain(s) confidential information that may be proprietary= , privileged or copyrighted under applicable law. If you are not the intend= ed recipient, do not read, copy, or forward this email message or any attac= hments. Delete this email message and any attachments immediately.