Re: SystemAce Driver.
From: sudheer <hidden>
Date: 2006-08-22 15:08:12
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:quoted
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:quoted
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:quoted
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:quoted
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@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded_______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded_______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded