Problems on porting linux 2.6 to xilinx ML410

[林瑶]

   Maybe you did not set your baud rate while config the kernel.     If you use UART16550, you should set your baud rate while config the kernel.In the kernel 2.6.22, the option is in "Platform options", selecting "Default bootloader kernel arguments" and then setting your baud rate. However, if you use UARTLITE, the baud rate dose not need to be set by yourself.   If the problem did not due to the baud rate, then perhaps your xparameters_ml40x.h file did not correctly define the register address of the serial port device. Your can find the correct register address of the serial port device in BSP generated by EDK.                                                                   linyao    
在2007-08-24，linuxppc-embedded-request at ozlabs.org 写道：
Send Linuxppc-embedded mailing list submissions to linuxppc-embedded at ozlabs.org To subscribe or unsubscribe via the World Wide Web, visit https://ozlabs.org/mailman/listinfo/linuxppc-embedded or, via email, send a message with subject or body 'help' to linuxppc-embedded-request at ozlabs.org You can reach the person managing the list at linuxppc-embedded-owner at ozlabs.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Linuxppc-embedded digest..." Today's Topics: 1. Problems on porting linux 2.6 to xilinx ML410 (woyuzhilei) 2. little endian page mapping on PQ3 (Jose Almeida) 3. RE: little endian page mapping on PQ3 (Joyeau Sylvain) 4. Re: little endian page mapping on PQ3 (Jose Almeida) 5. Re: little endian page mapping on PQ3 (Clemens Koller) 6. [linux kernel 2.6.19] ethernet driver for Marvell bridge GT-64260 (joachim.bader at diehl-aerospace.de) 7. Re: little endian page mapping on PQ3 (David Hawkins) ---------------------------------------------------------------------- Message: 1 Date: Fri, 24 Aug 2007 11:11:57 +0800 From: "woyuzhilei" <woyuzhilei at 163.com> Subject: Problems on porting linux 2.6 to xilinx ML410 To: "grant.likely" <grant.likely at secretlab.ca> Cc: linuxppc-embedded <linuxppc-embedded at ozlabs.org> Message-ID: <200708241111513591137 at 163.com> Content-Type: text/plain; charset="gb2312" Hey: Recently I'm doing some project on Xilinx Ml410 evaluation board.The first step is porting linux 2.6 to ml410,but I got some problems on this,and my project cann't proceed,so I come to you for some help. I use the linux kernel source tree download from http://git.secretlab.ca/git/linux-2.6-virtex.git (The latest one).Add the file the xparameters.h,xparameter_ml40x.h. Then add arch/ppc/platforms/4xx/xilinx_generic_ppc.c(Use the patch I get here),and change it's name to ml40x.c,then I make some necessay change of the configuration files to accept selecting a Ml40x type board.Then compile the kernel,and get the image file from arch/ppc/boot/images, (On kernel compiling,the only device driver I sellect is " 8250/16550 and compatible serial support ").After that I download the zImage.elf file to the target board,and run it.But there is no output from the serial port at all.Am I doing somthing wrong?I really don't know goes wrong. Can anyone here help me with this?Any help from you is appreciated.Thank you very much! woyuzhilei 2007-08-24 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20070824/b495befd/attachment-0001.htm ------------------------------ Message: 2 Date: Fri, 24 Aug 2007 09:59:17 +0200 From: Jose Almeida <jalmeida at sysgo.fr> Subject: little endian page mapping on PQ3 To: Linuxppc-embedded at ozlabs.org Message-ID: <46CE8FD5.2060609 at sysgo.fr> Content-Type: text/plain; charset=ISO-8859-1 Hi all, Looking at PQ3 documentation, it looks like there is a way to select on a page basis if we would like to map one particular page in BIG or LITTLE endian. This is a very nice feature when you need to exchange some data between a PC and a PQ3 target. I am wondering if someone have already tryed this PQ3 feature ? I guess this would require some kind of hook in the kernel ... Any clue ? Thanks - Jose ------------------------------ Message: 3 Date: Fri, 24 Aug 2007 13:40:31 +0200 From: "Joyeau Sylvain" <Sylvain.Joyeau at thomson.net> Subject: RE: little endian page mapping on PQ3 To: "Jose Almeida" <jalmeida at sysgo.fr>, <Linuxppc-embedded at ozlabs.org> Message-ID: <B00307ADBC68954AA8D6FB3AC8FD66F30141DE36 at rennsmail05.eu.thmulti.com> Content-Type: text/plain; charset="iso-8859-1" Jose, You are right, PQ3 supports endianess choice on a per page basis. Without any hook in Linux, you can remap physical address range (but RAM), by calling __ioremap() with the "_PAGE_ENDIAN" bit set in the flags. -- sj > -----Original Message----- > From: > linuxppc-embedded-bounces+sylvain.joyeau=thomson.net at ozlabs.or > g > [mailto:linuxppc-embedded-bounces+sylvain.joyeau=thomson.net at o > zlabs.org] On Behalf Of Jose Almeida > Sent: vendredi 24 ao?t 2007 09:59 > To: Linuxppc-embedded at ozlabs.org > Subject: little endian page mapping on PQ3 > > Hi all, > > Looking at PQ3 documentation, it looks like there is a way to select > on a page basis if we would like to map one particular page in BIG or > LITTLE endian. > This is a very nice feature when you need to exchange some data > between a PC and a PQ3 target. > > I am wondering if someone have already tryed this PQ3 feature ? > I guess this would require some kind of hook in the kernel ... > > Any clue ? > > Thanks - Jose > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > ------------------------------ Message: 4 Date: Fri, 24 Aug 2007 15:08:33 +0200 From: Jose Almeida <jalmeida at sysgo.fr> Subject: Re: little endian page mapping on PQ3 To: Joyeau Sylvain <Sylvain.Joyeau at thomson.net> Cc: Linuxppc-embedded at ozlabs.org Message-ID: <46CED851.70002 at sysgo.fr> Content-Type: text/plain; charset="us-ascii" An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20070824/3072d9f9/attachment-0001.htm ------------------------------ Message: 5 Date: Fri, 24 Aug 2007 15:19:17 +0200 From: Clemens Koller <clemens.koller at anagramm.de> Subject: Re: little endian page mapping on PQ3 To: Jose Almeida <jalmeida at sysgo.fr> Cc: Linuxppc-embedded at ozlabs.org Message-ID: <46CEDAD5.1070506 at anagramm.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi, Jose! Jose Almeida schrieb: > Hi all, > > Looking at PQ3 documentation, it looks like there is a way to select > on a page basis if we would like to map one particular page in BIG or > LITTLE endian. > This is a very nice feature when you need to exchange some data > between a PC and a PQ3 target. I would be interested, however cannot spend time right now to work on that subject. > I am wondering if someone have already tryed this PQ3 feature ? > I guess this would require some kind of hook in the kernel ... Just some random bits I found in the web: http://developer.apple.com/documentation/Hardware/DeviceManagers/pci_srvcs/pci_cards_drivers/PCI_BOOK.250.html The Interesting part is: "Thus, the address swizzle is completely transparent to software." So, I would just try to setup some memory mapping and turn on little endian mode to access that area... MMMV. Just a guess. Regards, -- Clemens Koller __________________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Stra?e 45/1 Linhof Werksgel?nde D-81379 M?nchen Tel.089-741518-50 Fax 089-741518-19 http://www.anagramm-technology.com ------------------------------ Message: 6 Date: Fri, 24 Aug 2007 15:51:33 +0200 From: joachim.bader at diehl-aerospace.de Subject: [linux kernel 2.6.19] ethernet driver for Marvell bridge GT-64260 To: linuxppc-embedded at ozlabs.org Message-ID: <OF2C2E8C6F.3860730F-ONC1257341.004B3D4B-C1257341.004C2882 at diehl-gruppe.de> Content-Type: text/plain; charset="utf-8" Hello everybody, I continue the work of ThomasB to get a linux kernel 2.6.19 up and running on a PPC750FX based platform using a GT-64260. From Thomas I got a patched mv643xx_eth driver which is ported to support the 64260, too. Now the driver is integrated and runs complete through initialisation bringing up an eth0 device. The initialisation seams to be ok (no error messages), the device is up and routing information is setup. Now I try to ping a remote station but I receive nothing and I get no feedback from the remote compter. As soon as I turn of the net interface (ifconfig eth0 down) I get the message "Tx time out or no link?) Is there anything else I can check? Any idea what may cause this problem? Thanks a lot for your help Joachim _______________________________________________________________________________________________________________________ Der Inhalt dieser E-Mail ist f?r den Absender rechtlich nicht verbindlich. Informieren Sie uns bitte, wenn Sie diese E-Mail f?lschlicherweise erhalten haben (Fax: +49-69-5805-1399). Bitte l?schen Sie in diesem Fall die Nachricht. Jede Form der weiteren Benutzung ist untersagt. The content of this e-mail is not legally binding upon the sender. If this e-mail was transmitted to you by error, then please inform us accordingly (Fax: +49-69-5805-1399). In such case you are requested to erase the message. Any use of such e-mail message is strictly prohibited. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20070824/5bb5a616/attachment-0001.htm ------------------------------ Message: 7 Date: Fri, 24 Aug 2007 08:49:46 -0700 From: David Hawkins <dwh at ovro.caltech.edu> Subject: Re: little endian page mapping on PQ3 To: Jose Almeida <jalmeida at sysgo.fr> Cc: Joyeau Sylvain <Sylvain.Joyeau at thomson.net>, Linuxppc-embedded at ozlabs.org Message-ID: <46CEFE1A.40905 at ovro.caltech.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi Jose, > I want to do using an mmap() entry point in a driver, in order to map > this to the user. Of course in that case ioremap() does not work. > > Any Clue ? > I used the little-endian flag on the Yosemite board (440EP) to test what the flag did. http://www.ovro.caltech.edu/~dwh/correlator/pdf/LNX-762-Hawkins.pdf http://www.ovro.caltech.edu/~dwh/correlator/software/driver_design.tar.gz Look at the mmap function in pci_io.c. /* PowerPC endian control * - default is cleared, big-endian */ #ifdef _PAGE_ENDIAN if (bar->little_endian) { pgprot_val(vma->vm_page_prot) |= _PAGE_ENDIAN; } else { pgprot_val(vma->vm_page_prot) &= ~_PAGE_ENDIAN; } if (pgprot_val(vma->vm_page_prot) & _PAGE_ENDIAN) { LOG_DEBUG("_PAGE_ENDIAN is set\n"); } else { LOG_DEBUG("_PAGE_ENDIAN is not set\n"); } #endif It might be the same for the PQ3 ... at least it'll be pretty similar. Dave ------------------------------ _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded End of Linuxppc-embedded Digest, Vol 36, Issue 59 *************************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20070825/4513b5ff/attachment.htm