Hello Raja, We too are working on customized board with amcc 440SPe processor & xilinx System Ace controller. The System Ace controller is connected to compact flash driver. We use u-boot 1.1.2 as bootloader & linux kernel - 2.6.16-2.
System ace is connected to amcc440SPE processor via GPIO and External Peripheral Bus Controller(EBC). While booting the linux, it crashes when i am trying to access(read/write) a system ace register. In the u-boot though i have support, as of now i am not doing anything with system ace as it not required now. In u-boot/include/configs/custom_board.h, i could see #define CFG_ACE_BASE 0xe0000000 /* Xilinx ACE controller - Compact Flash */ So i have used this address in Linux driver to to ioremap to access the ace registers. Though i could do ioremap, it crashes while booting exactly when it is trying the access any ace register. I doubt with the address i have used . But could not get any clue from the docs given. I want to know how to access the system ace registers and how to get the address to ioremap. Please let me know if any details required and also if i am missing any fundamentals. Thanks & Regards Sudheer sudheer wrote: > Hi Ameet, > > Firstly, thanks for the mail. > > I am able to compile the linux-2.6.16 and got the ace support files with > the patch. > While compiling got some errors with xparameters, but am rectify them. > > I need to wait for the hardware to test the source. > > Thanks & Regards > Sudheer > > > Ameet Patil wrote: > >> Hi Sudheer, >> Frank has already answered your questions. If you have any problems >> with the SysAce patch... do let me know. I have written a small >> tutorial here if it helps... >> >> http://linux.get2knowmore.com >> >> >> -Ameet >> >> sudheer wrote: >> >>> Hello Ameet Patil >>> >>> I am looking for linux kernel source 2.6.16 with system ace >>> controller support. I downloaded the linux-2.6.16 and linux-2.6.17-1 >>> source from kernel.org but could not find any files related to system >>> ace controller ( No xilinx_sysace directory in drivers/block/) . I >>> have checked penguinppc.org also but could not get it. >>> >>> Can you please send to me the link where i could download the >>> linuxppc-2.6.16 source with system ace support. >>> >>> Thanks & Regards >>> Sudheer >>> >>> Ameet Patil wrote: >>> >>>> Hi Raja, >>>> I have ported the Xilinx System ACE driver to 2.6 kernel. Find >>>> the latest one here: >>>> http://www.cs.york.ac.uk/rtslab/demos/amos/xupv2pro/patches/linuxppc-2.6.17.1-sysace-1.2.patch >>>> >>>> >>>> >>>> NOTE: this patch wouldn't work if you are using the TEMAC driver. In >>>> which case use the -after-TEMAC patch found in the patches folder >>>> above. >>>> >>>> Check the following discussions (threads) for more details: >>>> 1. "Xilinx SystemACE driver for 2.6" >>>> 2. "Xilinx BSP for linux 2.6" >>>> 3. "Kernel hangs after "Now booting the kernel"." >>>> >>>> cheers, >>>> -Ameet >>>> >>>> Raja Chidambaram wrote: >>>> >>>> >>>>> Hi all, >>>>> We are working on customized board with amcc 440SPe >>>>> processor & xilinx System Ace controller. The System >>>>> Ace controller is connected to compact flash driver. >>>>> >>>>> We use u-boot 1.2 as bootloader & linux kernel >>>>> 2.6.16-2. >>>>> >>>>> On the process the u-boot is able to detect compact >>>>> flash through Xilinx SystemAce controller & able to >>>>> load the kernel image into compact flash.But when the >>>>> linux boot's up it not able to detect the System Ace >>>>> controller or compact flash. >>>>> >>>>> Note:we need to have the root file system in compact >>>>> flash. >>>>> >>>>> Is their any drivers available for SystemAce >>>>> controller on linux 2.6,if their how to get it.please >>>>> help me in this >>>>> with regards >>>>> raja >>>>> >>>>> >>>>> >>>>> __________________________________________________ >>>>> Do You Yahoo!? >>>>> Tired of spam? Yahoo! Mail has the best spam protection around >>>>> http://mail.yahoo.com _______________________________________________ >>>>> Linuxppc-embedded mailing list >>>>> Linuxppc-embedded at ozlabs.org >>>>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> Linuxppc-embedded mailing list >>>> Linuxppc-embedded at ozlabs.org >>>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded >>>> >>>> >>>> > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20060822/1646f260/attachment.htm