[oe] How do I build OE for PPC-405 inside Virtex 4?

Mon Sep 28 21:46:10 UTC 2009

On 09/28/2009 05:24 PM, Ali Akbar Zarezadeh wrote:
> Hi everybody,
>
> Currently the Xilinx Open Source Linux is running on our PICSY designed
> platform (based on Virtex 4 FX20 FPGA for smart camera). ELDK is used as
> cross compiler. Now we are going to change it with OpenEmbedded to be
> more flexible with the ramdisk or root filesystem and also take benefit
> of existing recipes in OE (for example openCV and ACE).
> To be in the safe corner and proceed step be step, the first try was
> only to create new ramdisk with OE and again use the Xilinx Open Source
> Linux but with new generated ramdisk by OE. In the first try these
> settings are used in the local.conf:
>
> MACHINE = "xilinx-ml403"
> DISTRO = "angstrom-2008.1"
>
> This step with the "bibake helloworld-image" was successful. Afterwards,
> in the second step the "bitbake console-image" is tested. Unfortunately
> we got stuck in this step and is not system hangs on in init step. For
> your information the Kernel version we used is 1.6.29-rc5. You could see
> log of system in boot up in following:
>
>
> ----------------------------------------------------------------------------------------------------------------------
>
> zImage starting: loaded at 0x00400000 (sp: 0x00be7eb0)
> Allocating 0x2f9a19 bytes for kernel ...
> gunzipping (0x00000000<- 0x0040d000:0x00564427)...done 0x2dde20 bytes
> Attached initrd image at 0x00565000-0x00be6d1d
> initrd head: 0x1f8b0808
>
> Linux/PowerPC load: console=ttyUL0 root=/dev/ram rw init=/bin/init
> Finalizing device tree... flat tree at 0xbf4300
> Using Xilinx Virtex machine description
> Linux version 2.6.29-rc5 (akzare at orest) (gcc version 4.2.2) #63 PREEMPT
> Thu Sep 24 20:17:09 CEST 2009
> Found initrd at 0xc0565000:0xc0be6d1d
> Zone PFN ranges:
>    DMA      0x00000000 ->  0x000075ff
>    Normal   0x000075ff ->  0x000075ff
> Movable zone start PFN for each node
> early_node_map[1] active PFN ranges
>      0: 0x00000000 ->  0x000075ff
> MMU: Allocated 1088 bytes of context maps for 255 contexts
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages:
> 29971
> Kernel command line: console=ttyUL0 root=/dev/ram rw init=/bin/init
> Xilinx intc at 0x81800000 mapped to 0xfdfff000
> PID hash table entries: 512 (order: 9, 2048 bytes)
> clocksource: timebase mult[d55555] shift[22] registered
> Console: colour dummy device 80x25
> console [ttyUL0] enabled
> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Memory: 109876k/120828k available (2784k kernel code, 10808k reserved,
> 128k data, 110k bss, 148k init)
> Calibrating delay loop... 598.01 BogoMIPS (lpj=1196032)
> Mount-cache hash table entries: 512
> net_namespace: 880 bytes
> NET: Registered protocol family 16
> bio: create slab<bio-0>  at 0
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> TCP established hash table entries: 4096 (order: 3, 32768 bytes)
> TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
> TCP: Hash tables configured (established 4096 bind 4096)
> TCP reno registered
> NET: Registered protocol family 1
> checking if image is initramfs...it isn't (no cpio magic); looks like an
> initrd
> Freeing initrd memory: 6663k freed
> msgmni has been set to 227
> alg: No test for stdrng (krng)
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> 84000000.serial: ttyUL0 at MMIO 0x84000003 (irq = 16) is a uartlite
> brd: module loaded
> loop: module loaded
> nbd: registered device at major 43
> Device Tree Probing 'ethernet'
> xilinx_lltemac 81c00000.ethernet: MAC address is now  2: 0: 0: 0: 0: 0
> xilinx_lltemac 81c00000.ethernet: XLlTemac: using DMA mode.
> XLlTemac: Dma base address: phy: 0x84600100, virt: 0xc8018100
> XLlTemac: buffer descriptor size: 32768 (0x8000)
> XLlTemac: Allocating DMA descriptors with kmalloc<6>XLlTemac:
> (buffer_descriptor_init) phy: 0x6c80000, virt: 0xc6c80000, size: 0x8000
> XTemac: No PHY detected.  Assuming a PHY at address 0
> eth0 (): not using net_device_ops yet
> eth0: Dropping NETIF_F_SG since no checksum feature.
> xilinx_lltemac 81c00000.ethernet: eth0: Xilinx TEMAC at 0x81C00000
> mapped to 0xC8012000, irq=17
> Linux video capture interface: v2.00
> TCP cubic registered
> NET: Registered protocol family 17
> RAMDISK: Compressed image found at block 0
> VFS: Mounted root (ext2 filesystem) on device 1:0.
> Freeing unused kernel memory: 148k init
> Failed to execute /bin/init.  Attempting defaults...
> INIT: version 2.86 booting
> Starting udev and populating dev cache
> Remounting root file system...
> WARNING: Couldn't open directory /lib/modules/2.6.29-rc5: No such file
> or directory
> FATAL: Could not open /lib/modules/2.6.29-rc5/modules.dep.temp for
> writing: No such file or directory
> root: mount: mount point /proc/bus/usb does not exist
> Configuring network interfaces... eth0: XLlTemac: Options: 0x3fa
> eth0: XLlTemac: allocating interrupt 19 for dma mode tx.
> eth0: XLlTemac: allocating interrupt 18 for dma mode rx.
> eth0: XLlTemac: We renegotiated the speed to: 100
> eth0: XLlTemac: speed set to 100Mb/s
> eth0: XLlTemac: Send Threshold = 24, Receive Threshold = 4
> eth0: XLlTemac: Send Wait bound = 254, Receive Wait bound = 254
> udhcpc (v1.13.2) started
> run-parts: /etc/udhcpc.d/00avahi-autoipd exited with code 1
> Sending discover...
> Sending discover...
> Sending discover...
> run-parts: /etc/udhcpc.d/99avahi-autoipd exited with code 1
> No lease, failing
> done.
> Starting portmap daemon: portmap.
> net.ipv4.conf.default.rp_filter = 1
> net.ipv4.conf.all.rp_filter = 1
> hwclock: can't open '/dev/misc/rtc': No such file or directory
> Fri Sep 25 17:43:00 UTC 2009
> hwclock: can't open '/dev/misc/rtc': No such file or directory
> Configuring avahi-daemon
>   System startup links for /etc/init.d/avahi-daemon already exist.
> Configuring libnss-mdns
> Configuring ppp-dialin
> Configuring avahi-autoipd
> Configuring angstrom-libc-fixup-hack
> Configuring dbus
>   System startup links for /etc/init.d/dbus-1 already exist.
> Configuring ppp
> INIT: Entering runlevel: 5
> Creating Dropbear SSH server RSA host key.
> Will output 1024 bit rsa secret key to
> '/etc/dropbear/dropbear_rsa_host_key'
> Generating key, this may take a while...
> Public key portion is:
> ssh-rsa
> AAAAB3NzaC1yc2EAAAADAQABAAAAgwC5CKkPhMsuidec4TYxjnSBcQk57SZBiIXbVPkt5SvXVv008piyVuaYFnowJVqa8WkYtdr80lSmHNfquU0PmlHHzaiXZJbjETtj7LRFKYbrjrD+LpcypqyzyMLM+r9F/Ngm31Xj6Ms45K21MZgksB3plafgD855LwLNnKnBF5V/1kJj root at xilinx-ml403
> Fingerprint: md5 43:57:34:3b:13:e7:5d:bb:76:21:29:8b:c1:56:5d:a7
> Starting Dropbear SSH server: modprobe: FATAL: Could not
> load /lib/modules/2.6.29-rc5/modules.dep: No such file or directory
>
> modprobe: FATAL: Could not load /lib/modules/2.6.29-rc5/modules.dep: No
> such file or directory
>
> dropbear.
> Starting system message bus: dbus.
> Starting syslogd/klogd: done
>   * Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon
> [ ok ]
> INIT: Id "S" respawning too fast: disabled for 5 minutes

I've heard of this, but I do not know the answer. Googling for 
"respawning too fast ml403" may give you some more ideas.

> .
> .
> .
> ----------------------------------------------------------------------------------------------------------------------
>
> Considering the log, I have checked the /lib/modules/ directory in my OE
> and it seems the version is "oe/tmp/rootfs/lib/modules/2.6.24-rc3" and I
> guess maybe the problem is the mismatch between the version of Linux
> kernel from Xilinx and OE. IF it is the reason, what should be the
> solution?
>
> On the other hand, it seems the generated ramdisk is not fit into our
> desire. Total DDR memory of our system is 128M and this generated
> ramdsik occupied nearly 25M. Maybe it is because of using
> "angstrom-2008.1". In our system we don't need X11 or ... Now, the
> question is how could I remove all unnecessary staff from ramdisk to
> make it smaller? Or is there any other solution better than
> angstrom-2008.1?

You need to create a custom image with only the packages you need. 
Console-image creates a "full featured" image for system with only text 
consoles.

Look in 
tmp/deploy/glibc/images/beagleboard/Angstrom-console-image-glibc-ipk-2009.X-test-20090927-beagleboard-testlab 
(OK, this is for a beagle board, but you should find a similar directory 
for the ml403) and look at the files there. There are files listing the 
installed packages and their sizes. Once you get an idea of the changes 
you need, we can make some suggestions how to shrink your image.

I have an ml403, but have never had time play much with it. If possible, 
I'd like to figure out how to build a working kernel in OE that we could 
use as a simple kernel for testing the board. I'll need some help 
understanding what files are needed from ELDK (which I only sort off 
have access too)

Philip

>
> I've started to read usermanual of OE, but still I have not found out a
> solution for this problem. Is there any idea how could I proceed to have
> a running OE Linux on our Virtex 4 platform from scratch with
> consideration of all tricky ways not to face with such pitfall again?
>
> I would be grateful to receive promptly your solution through
> compilation and installation of OE on hardcore Power PC 405 inside
> Virtex 4.
>
> Thanks in advance.
>
> Regards
> Ali
>
>
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