Load Kernel 2.6 using U-boot on ML403

Sun Jan 27 18:10:47 EST 2008

   Hi,
/I have downloaded the 2.6 kernel from  
/http://git.secretlab.ca/git/linux-2.6-virtex.git , installed &  
compiled it. I used "make ARCH=ppc CROSS_COMPILE=ppc_4xx-  
ml403_defconfig" to build the .config file. (As explained in  
http://wiki.secretlab.ca/index.php/Linux_on_Xilinx_Virtex)PROBLEM -

   1)Downloaded(sourceforge.net) & compiled the U-boot 1.1.6 files to  
get u-boot, u-boot.srec & u-boot.bin (I didn't find ml403 board config  
for the uboot. So used ml300_config).

   After this, I tried to convert the u-boot (README says that this is  
an ELF file) into an ace file. But, it gave me the error saying unable  
to read elf file. Is it because ML403 board is not supported or is it  
possible that the u-boot image that I created is corrupted?

   $ xmd -tcl genace.tcl -jprog -board ml403 -hw download.bit -elf  
u-boot -ace uboot.ace
Xilinx EDK 9.1 Build EDK_J.19
Executing xmd script : $HOME/EDK/data/xmd/genace.tcl

#######################################################################
XMD GenACE utility. Generate SystemACE File from bit/elf/data Files
#######################################################################
Target Type not defined for Processor 1, Using default Target Type ppc_hw
GenACE Options:
        Board      : ml403
        Jtag Devs  : xcf32p xc4vfx12 xc95144xl
        FPGA pos   : 2
        JPROG      : true
        HW File    : download.bit
        ACE File   : uboot.ace
        nCPUs      : 1

        Processor ppc_hw_1 Information
                Debug opt : -debugdevice devicenr 2 cpunr 1
                ELF files : u-boot
                Start PC Address : 0xfff80000

############################################################
Converting Bitstream 'download.bit' to SVF file 'download.svf'
Executing 'impact -batch bit2svf.scr'
Copying download.svf File to  uboot.svf File
############################################################
Converting ELF file 'u-boot' to SVF file 'u-boot.svf'
Error: E02 Failed to download ELF file

ERROR(1053): UNABLE to Read Elf File. The Elf File Maybe Corrupted
        : u-boot
#$
-------------------------
PROBLEM -
2) Since generating ace files failed, I tried to search the net for an  
u-boot ace file that could run on ML403 & found it at   
http://88.191.24.164/docenligne/projets/samba/2006/linux-embarque-sur-ml-403/u-boot-ml403.ace/view

   I copied this ace file (u-boot-ml403.ace) along with the kernel 2.6  
image (uImage) onto my CF card & booted the board. After loading the  
kernel, it fails to read the correct root device. I tried changing the  
"bootargs" env variable root = /dev/xsysace/disc0/part2 rw to root =  
/dev/xsysace2 rw & root = /dev/xsda2 rw.

   But, it failed in both cases. (There was a previous post on  
Problem2 a year ago & he solved it by giving root =/dev/xsysace2)

   Environment size: 246/1020 bytes
#u-boot> setenv bootargs console=ttyS0,9600 root=/dev/xsysace2 rw    
#u-boot> fatload ace 0 0x400000 uImage
reading uImage

952237 bytes read
#u-boot>  bootm 0x400000
## Booting image at 00400000 ...
   Image Name:   Linux-2.6.24-rc3
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    952173 Bytes = 929.9 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
[    0.000000] Linux version 2.6.24-rc3 (icdt at icdt05) (gcc version  
4.0.0 (DENX ELDK 4.0 4.0.0)) #1 Fri Jan 25 21:23:54 PST 2008
[    0.000000] Xilinx ML403 Reference System (Virtex-4 FX)
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA             0 ->    16384
[    0.000000]   Normal      16384 ->    16384
[    0.000000] Movable zone start PFN for each node
[    0.000000] early_node_map[1] active PFN ranges
[    0.000000]     0:        0 ->    16384
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.   
Total pages: 16256
[    0.000000] Kernel command line: console=ttyS0,9600 ip=off  
root=/dev/xsysace  root=/dev/xsysace2 rw
[    0.000000] Xilinx INTC #0 at 0xD1000FC0 mapped to 0xFDFFEFC0
[    0.000000] PID hash table entries: 256 (order: 8, 1024 bytes)
[    0.000179] Console: colour dummy device 80x25
[    0.000669] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.001431] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.015197] Memory: 62860k available (1452k kernel code, 496k data,  
96k init, 0k highmem)
[    0.204614] Mount-cache hash table entries: 512
[    0.209345] net_namespace: 64 bytes
[    0.213840] NET: Registered protocol family 16
[    0.252576] NET: Registered protocol family 2
[    0.288713] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.291229] TCP established hash table entries: 2048 (order: 2,  
16384 bytes)
[    0.291535] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[    0.291709] TCP: Hash tables configured (established 2048 bind 2048)
[    0.291737] TCP reno registered
[    0.301433] sysctl table check failed: /kernel/l2cr .1.31 Missing strategy
[    0.301509] Call Trace:
[    0.301528] [c3c17e80] [c00084f4] show_stack+0x4c/0x174 (unreliable)
[    0.301611] [c3c17eb0] [c00305e0] set_fail+0x50/0x68
[    0.301678] [c3c17ed0] [c0030c68] sysctl_check_table+0x670/0x6bc
[    0.301726] [c3c17f10] [c0030c7c] sysctl_check_table+0x684/0x6bc
[    0.301771] [c3c17f50] [c001df28] register_sysctl_table+0x5c/0xac
[    0.301832] [c3c17f70] [c01dca84] register_ppc_htab_sysctl+0x18/0x2c
[    0.301897] [c3c17f80] [c01d6848] kernel_init+0xc8/0x284
[    0.301938] [c3c17ff0] [c0004af8] kernel_thread+0x44/0x60
[    0.307739] io scheduler noop registered
[    0.307792] io scheduler anticipatory registered (default)
[    0.307817] io scheduler deadline registered
[    0.307967] io scheduler cfq registered
[    0.364669] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports,  
IRQ sharing disabled
[    0.370815] serial8250.0: ttyS0 at MMIO 0xa0001003 (irq = 9) is a 16450
[    0.370893] console [ttyS0] enabled
[    3.286815] RAMDISK driver initialized: 16 RAM disks of 65536K size  
1024 blocksize
[    3.376997] tun: Universal TUN/TAP device driver, 1.6
[    3.437161] tun: (C) 1999-2004 Max Krasnyansky <maxk at qualcomm.com>
[    3.512736] mice: PS/2 mouse device common for all mice
[    3.574814] TCP cubic registered
[    3.613145] NET: Registered protocol family 1
[    3.665227] NET: Registered protocol family 17
[    3.720647] VFS: Cannot open root device "xsysace2" or unknown-block(0,0)
[    3.801333] Please append a correct "root=" boot option; here are  
the available partitions:
[    3.901354] Kernel panic - not syncing: VFS: Unable to mount root  
fs on unknown-block(0,0)
[    4.000286] Rebooting in 180 seconds..
-------------------------
Can anyone help me with either one (or both) of the above problems?  I  
have pretty much run out of ideas. :(

   Thanks & Regards,
Yedu

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Hi,

/ GOAL - To use the USB Host on ML403 in a PowerPC processor reference  
system to store some data on a Thumb Drive./

   /BACKGROUND - I downloaded the 2.6 kernel from  
/http://git.secretlab.ca/git/linux-2.6-virtex.git , installed &  
compiled it to get uImage & zImage.elf files. I used "make  
ml403_defconfig" to build the .config file. (As explained in  
http://wiki.secretlab.ca/index.php/Linux_on_Xilinx_Virtex)

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