From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.201]) by ozlabs.org (Postfix) with ESMTP id 328756895A for ; Thu, 5 Jan 2006 03:19:44 +1100 (EST) Received: by wproxy.gmail.com with SMTP id i24so1616193wra for ; Wed, 04 Jan 2006 08:19:43 -0800 (PST) Message-ID: Date: Wed, 4 Jan 2006 17:19:42 +0100 From: Matthias Transier To: Wolfgang Denk In-Reply-To: <20060104154812.24858352B1E@atlas.denx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 References: <20060104154812.24858352B1E@atlas.denx.de> Cc: linuxppc-embedded@ozlabs.org Subject: Re: Segmentation fault with X.org and Coral-P drivers List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Wolfgang, thanks for the quick response. 2006/1/4, Wolfgang Denk : > > I have been trying to get X.org running on a board called "Embedded > > Planet EP5200C" (it seems to be a "Freescale Lite5200") and a Fujitsu > > Umm... no. Embedded Plaet and Freescale are two different companies, > and EP5200 and Lite5200 are two different boards. Ok, my fault. I saw a Lite5200 on a picture somewhere and it looked pretty much like my EP board :-). But what I can tell for sure is: when I remove the "Embedded Planet" sticker on the board, there is a Freescale logo and a print (directly on the board): "IceCube Version 103" > > Coral-P (Rev 5.0). I am using the 2.4 kernel from denx.de and > > Our kernel does not include any support for the EP5200 board. I checked it out from CVS, configured it, and it works (besides the X11 thi= ng). > > succesfully installed gentoo-ppc on nfs. The framebuffer works, I get > > a login prompt on the monitor. > > > > Now I compiled x.org-6.8.2 (gentoo -r4) and the mb86290 driver from > > denx.de. Unfortunately, it does not work and I get a segmentation > > fault when trying to startx. strace produces the output attached > > below. > > Please read the documentation that comes with the driver: > ftp://ftp.denx.de/pub/fujitsu/Coral-P/README.html That is what I already read in order to compile the driver. > Note that the driver was built and tested against xfree86-4.3.0; > don't expect the binary to work in a completely different X11 > release. You wil have to rebuild (and eventually adapt) the driver > for your environment. I did not use the prebuilt binaries, but I was able to compile the driver within my x.org tree. (I had to adapt the Imakefiles by myself, the provided ones were too different from the originals.) In the meantime, I can provide you with further debugging information: from Xorg.0.log: =3D=3D=3D=3D=3D=3D (II) MB86290(0): Using XFree86 Acceleration Architecture (XAA) Screen to screen bit blits Solid filled rectangles 8x8 mono pattern filled rectangles Indirect CPU to Screen color expansion Solid Lines Dashed Lines (II) MB86290(0): Acceleration enabled fbdevHW: LoadPalette 0 (II) MB86290(0): fbdevHWLoadPalette succeeded =3D=3D=3D=3D=3D=3D The last line is a message that I added. Since the output stops at that point, it must be the next call that fails (mb86290_driver.c:604): if (!xf86I2CProbeAddress(fPtr->I2C, I2C_SAA7113)) return FALSE; May that be a problem with the i2c driver in the kernel which does not exactly fit with my board? The following message also appears in Xorg.0.log, some lines above: (II) MB86290(0): I2C bus "MB86290 I2C bus" removed. Thanks in advance for any hint that you can give me. Best regards, Matthias