Failed to attach to END device when boot from flash.

ren...@yahoo.com.cn

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Apr 19, 2006, 12:45:28 AM4/19/06

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PPC440GX have 4 networks ports, I only enable 2nd.
I can load and run vxworks image from ftp based on PPC440GX.
But when boot vxWorks_rom .bin from flash it will shows some message as
below,

Failed to attach to END device
Attaching interface lo0...done
wdbConfig: error configuring WDB communication interface

VxWorks

CPU: IBM PowerPC 440GX Rev. 2.1
Runtime Name: VxWorks
Runtime Version: 5.5
BSP version: 1.2/3
Created: Apr 18 2006, 22:44:59
WDB Comm Type: WDB_COMM_END
WDB: Agent configuration failed.

0xffffe00 (tRootTask): ipAttach: Can't attach (unit 0). It is not
an END device.
0xffffe00 (tRootTask): Could not find device unit 0!

I don't know why. Have anyone give me some insights?

Thanks & Regards,
Rencrux

LarryC

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Apr 20, 2006, 7:55:40 PM4/20/06

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Sounds familiar. Do you have the "other" field specified in the boot
params? That might do it.

lc

Norman

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Apr 20, 2006, 10:15:01 PM4/20/06

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Hello,

What are "boot params" mentioned by you?
Thank you.

Regards,
Rencrux

Norman

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Apr 21, 2006, 4:16:12 AM4/21/06

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After Boot from ftp, I run ifShow on shell.

-> ifShow
emac (unit number 2):
Flags: (0x8063) UP BROADCAST RUNNING ARP MULTICAST
Type: ETHERNET_CSMACD
Internet address: 192.168.0.99
Broadcast address: 192.168.0.255
Netmask 0xffffff00 Subnetmask 0xffffff00
Ethernet address is 00:04:ac:6c:6c:6c
Metric is 0
Maximum Transfer Unit size is 1500
7 packets received; 3 packets sent
7 multicast packets received
2 multicast packets sent
0 input errors; 0 output errors
0 collisions; 0 dropped
lo (unit number 0):
Flags: (0x8069) UP LOOPBACK RUNNING ARP MULTICAST
Type: SOFTWARE_LOOPBACK
Internet address: 127.0.0.1
Netmask 0xff000000 Subnetmask 0xff000000
Metric is 0
Maximum Transfer Unit size is 32768
0 packets received; 0 packets sent
0 multicast packets received
0 multicast packets sent
0 input errors; 0 output errors
0 collisions; 0 dropped
value = 0 = 0x0

I want to know what is 'lo', I suspect that the problem is from it.

LarryC

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Apr 21, 2006, 1:16:05 PM4/21/06

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lo is the local software loopback to localhost (127.0.0.1), so you can
run ip without an ethernet driver.
The other i mention is in the bootParams below:

Orion DY4[cpu0]->bootChange

'.' = clear field; '-' = go to previous field; ^D = quit

boot device : gteth0
processor number : 0
host name : test1
file name : dy4_183/vxworks_dy4_183.cpu0
inet on ethernet (e) : 146.58.54.21:ffffffc0
inet on backplane (b): 192.203.0.101
host inet (h) : 146.58.54.2
gateway inet (g) : 146.58.54.0
user (u) :
ftp password (pw) (blank = use rsh): ?
flags (f) : 0x80
target name (tn) : ?
startup script (s) : startup_dy4-gcp.cpu0
other (o) : This is what you should fill in with your
ethernet device when you boot from /tffs

value = 0 = 0x0

Good luck,
lc

Norman

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Apr 21, 2006, 10:53:41 PM4/21/06

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Now, I want to boot from vxWorks_rom.bin directly.
How to indicate Boot Device?

Thank you,
Norman

Norman

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Apr 22, 2006, 5:30:21 AM4/22/06

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Hello lc,

Now I want to trace the progress of booting from vxworks_rom,bin
I find the code do not enter usrInit() in usrConfig.c after romStart()
in romStart.c.
It should turn into usrInit() after usrInit().

When booting from vxworks_rom,bin, It will show message as below,
Where does the message come from?

Failed to attach to END device

Attaching inte**ce lo0...done
wdbConfig: error configuring WDB communication inte**ce

VxWorks

Runtime Name: VxWorks
Runtime Version: 5.5
BSP version: 1.2/3

Created: Apr 19 2006, 09:17:03

WDB Comm Type: WDB_COMM_END
WDB: Agent configuration failed.

Could give me some insight?

Thank you very much
Norman

LarryC 写道：

LarryC

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Apr 22, 2006, 3:16:39 PM4/22/06

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Hi:

Did you flash that vxWorks_rom.bin into flash or eprom? That's a
bootrom image I believe which will want to load a kernel from a net or
flash or other location.

I'm not clear what you are trying to do - do you want to use a bootrom
to boot from a flash file system, or bypass the bootrom and just start
vxWorks from rom/flash?

Can you show how your boot parameters are set up for what you are
doing?

Thanks
lc

Norman

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Apr 23, 2006, 10:51:06 PM4/23/06

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Hello lc,

I only want to start vxWorks_rom.bin from flash and bypass the bootrom.

I only have enable one of 4 EMACs and have not set up other 'boot
parameters'.
Which 'boot parameters' should be set up?

#define INCLUDE_NETWORK
#define INCLUDE_END
#define INCLUDE_EMAC_NETWORK

#define ENET_GROUP 6
#define EMAC2_PHY_MODE PHY_MODE_RGMII
#define EMAC3_PHY_MODE PHY_MODE_DISABLED
#undef EMAC0_ENABLE
#undef EMAC1_ENABLE
#undef EMAC3_ENABLE
#define EMAC2_ENABLE

#undef IP_MAX_UNITS
#define IP_MAX_UNITS 1

END_TBL_ENTRY endDevTbl [] =
{

#ifdef INCLUDE_EMAC_NETWORK

#ifdef EMAC0_ENABLE
{0, IBM_EMAC_LOAD_FUNC, IBM_EMAC_LOAD_STR_0, TRUE, NULL, FALSE},

#endif
#ifdef EMAC1_ENABLE
{1, IBM_EMAC_LOAD_FUNC, IBM_EMAC_LOAD_STR_1, TRUE, NULL, FALSE},

#endif
#ifdef EMAC2_ENABLE
{2, IBM_EMAC_LOAD_FUNC, IBM_EMAC_LOAD_STR_2, TRUE, NULL, FALSE},
#endif
#ifdef EMAC3_ENABLE
{3, IBM_EMAC_LOAD_FUNC, IBM_EMAC_LOAD_STR_3, TRUE, NULL, FALSE},
#endif
#endif
};

Thank you very much.

Regards,
Norman

LarryC

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Apr 24, 2006, 12:03:35 PM4/24/06

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Hi:

Did you use tornado to config the rom.bin or are you modding the
config.h yourself? Trying it with Tornado might show some config
erros, or at least a missing component.

The error you are getting comes from usrNetEndDevStart in
usrNetEndBoot.c. That's called from usrNetworkDevStart in
usrNetworkBoot which should be built automatically in your prjConfig.c.
Most of this has to do with booting from a network, which is what you
aren't doing anymore, so it sounds like you should bypass all this.

The Tornado users manual explains how a romstart differs from a net or
other boot - G.9 Initialization Sequence for ROM-Based VxWorks. There
are also instructions on doing a romstart image. Note that generally
the image gets copied into RAM (text and data) before starting. If you
really want to run from ROM. you may have to hack romStart coce to do
this, though there may be some #defines that will configure it
correctly.

Good luck,
lc