3Com 574BT PCMCIA Card on PowerPC

3Com 574BT PCMCIA Card on PowerPC

[Andreas Plaickner]

Hello,

I am new to the development of RTAI Linux on
PowerPC boards, therefore I would be very
grateful for some advice.

I want to use the PCMCIA card 3Com
3CCFE574BT in the pcmcia-slot on the board. On the
board is a Motorola MPC855T.

I have seen that there exists already a solution
for a wireless LAN card. I took these steps as
a basis to try to bring to work my card. On my
board it is not possible to start the card
services with the script
/etc/rc.d/rc.pcmcia start
as there is no bash to interpret the script, there
is only a BusyBox.

S I start the PCMCIA card services manually:
insmod pcmcia_core.o
insmod m8xx_pcmcia.o
insmod ds.o
insmod 3c574_cs.o

When I don't insert the card in the slot and I only
start the cardmgr everything seems to be fine,
the cardmgr responds with:

cardmgr[61]: watching 1 sockets
cardmgr[62]: starting, version is 3.2.0

When I insert the card, nothing happens so I have
to call the command
cardctl insert

When I do this one I get the following error message,
and the system reboots:

/ # Oops: Kernel Mode Software FPU Emulation, sig: 8
NIP: 00000304 XER: A000007F LR: C3040490 SP: C07F1810 REGS: c07f1760 TRAP:
1000
MSR: 00001000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00
TASK = c07f0000[58] 'cardmgr' Last syscall: 54
last math 00000000 last altivec 00000000
GPR00: 00000800 C07F1810 C07F0000 0000001F 00100000 00000002 C07F17AB
00000000
GPR08: 0000000F 0000030E 00000058 C000B2D4 95743B34 018223F8 00FF3D00
007FFF5D
GPR16: 00000000 00000001 007FFF00 FFFFFFFF 00009032 007F1E80 C07F19B8
C07F1838
GPR24: C093D0FC C093D000 C093D08C C0941170 0000002B C093D1BC 00000300
C093D000
Call backtrace:
C3040490 C304098C C3030208 C3031880 C3040244 C303C894 C303D614
C004377C C00025BC 01802D18 01803444 01804A20 016D9DBC 00000000

When I, after inserting the modules, dont start the cardmgr,
but write cardctl insert I can check with the commands

cardctl status
cardctl config
cardctl ident

and get some information that the card is in the socket.
But I think this one doesn't help as I need to start the
cardmgr to use the card. When I start the cardmgr now
I get again the above errormessage.

What I also tried is to change the file config.opts,
setting the memory area to 0xe0000000-0xec000000
because when I start the board during the boot
process appears
PCMCIA slot B: phys mem e0000000...ec000000 (size 0c000000)

When I did this one I got the following error-msg:

/lib/modules/2.4.4-rthal5/pcmcia # cardmgr
cardmgr[61]: watching 1 sockets
cardmgr[62]: starting, version is 3.2.0
/lib/modules/2.4.4-rthal5/pcmcia # cardctl insert
/lib/modules/2.4.4-rthal5/pcmcia # __ioremap(): phys addr 0 is RAM lr
c000b25c
Oops: kernel access of bad area, sig: 11
NIP: CF032C34 XER: A000007E LR: CF032C10 SP: C09AF8F0 REGS: c09af840 TRAP:
0300
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 00000000, DSISR: 00000405
TASK = c09ae000[62] 'cardmgr' Last syscall: 54
last math 00000000 last altivec 00000000
....


My Kernel-Image is

## Booting image at 40040000 ...
   Image Name:   Linux-2.4.4
   Created:      2002-07-17  10:40:49 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    614209 Bytes = 599 kB = 0 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK

I didn't create a new kernel, but I used one that was already
pre-installed on the board. Could this one be the reason
for the above error?

I am stuck and don't know how to continue, therefore I
would be very grateful if someone could give me some advice.

Thanks very much in advance.

Andreas

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Re: 3Com 574BT PCMCIA Card on PowerPC

[Magnus Damm]

Make sure that the socket driver is configured correctly for
your board. Voltage control pins and stuff like that are
board-specific.

I would first try a PCMCIA card that is known to work easily
right out of the box. Maybe the wireless board.

Then you could verify the 3Com card.
Scan the source-code for the 3Com card and see if it's endian-aware.

/ magnus

On Fri, 31 Jan 2003 13:04:38 +0100 (MET)
Andreas Plaickner <apxx@gmx.net> wrote:

>
> Hello,
>
> I am new to the development of RTAI Linux on
> PowerPC boards, therefore I would be very
> grateful for some advice.
>
> I want to use the PCMCIA card 3Com
> 3CCFE574BT in the pcmcia-slot on the board. On the
> board is a Motorola MPC855T.
>
> I have seen that there exists already a solution
> for a wireless LAN card. I took these steps as
> a basis to try to bring to work my card. On my
> board it is not possible to start the card
> services with the script
> /etc/rc.d/rc.pcmcia start
> as there is no bash to interpret the script, there
> is only a BusyBox.
>
> S I start the PCMCIA card services manually:
> insmod pcmcia_core.o
> insmod m8xx_pcmcia.o
> insmod ds.o
> insmod 3c574_cs.o
>
> When I don't insert the card in the slot and I only
> start the cardmgr everything seems to be fine,
> the cardmgr responds with:
>
> cardmgr[61]: watching 1 sockets
> cardmgr[62]: starting, version is 3.2.0
>
> When I insert the card, nothing happens so I have
> to call the command
> cardctl insert
>
> When I do this one I get the following error message,
> and the system reboots:
>
> / # Oops: Kernel Mode Software FPU Emulation, sig: 8
> NIP: 00000304 XER: A000007F LR: C3040490 SP: C07F1810 REGS: c07f1760 TRAP:
> 1000
> MSR: 00001000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00
> TASK = c07f0000[58] 'cardmgr' Last syscall: 54
> last math 00000000 last altivec 00000000
> GPR00: 00000800 C07F1810 C07F0000 0000001F 00100000 00000002 C07F17AB
> 00000000
> GPR08: 0000000F 0000030E 00000058 C000B2D4 95743B34 018223F8 00FF3D00
> 007FFF5D
> GPR16: 00000000 00000001 007FFF00 FFFFFFFF 00009032 007F1E80 C07F19B8
> C07F1838
> GPR24: C093D0FC C093D000 C093D08C C0941170 0000002B C093D1BC 00000300
> C093D000
> Call backtrace:
> C3040490 C304098C C3030208 C3031880 C3040244 C303C894 C303D614
> C004377C C00025BC 01802D18 01803444 01804A20 016D9DBC 00000000
>
> When I, after inserting the modules, dont start the cardmgr,
> but write cardctl insert I can check with the commands
>
> cardctl status
> cardctl config
> cardctl ident
>
> and get some information that the card is in the socket.
> But I think this one doesn't help as I need to start the
> cardmgr to use the card. When I start the cardmgr now
> I get again the above errormessage.
>
> What I also tried is to change the file config.opts,
> setting the memory area to 0xe0000000-0xec000000
> because when I start the board during the boot
> process appears
> PCMCIA slot B: phys mem e0000000...ec000000 (size 0c000000)
>
> When I did this one I got the following error-msg:
>
> /lib/modules/2.4.4-rthal5/pcmcia # cardmgr
> cardmgr[61]: watching 1 sockets
> cardmgr[62]: starting, version is 3.2.0
> /lib/modules/2.4.4-rthal5/pcmcia # cardctl insert
> /lib/modules/2.4.4-rthal5/pcmcia # __ioremap(): phys addr 0 is RAM lr
> c000b25c
> Oops: kernel access of bad area, sig: 11
> NIP: CF032C34 XER: A000007E LR: CF032C10 SP: C09AF8F0 REGS: c09af840 TRAP:
> 0300
> MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
> DAR: 00000000, DSISR: 00000405
> TASK = c09ae000[62] 'cardmgr' Last syscall: 54
> last math 00000000 last altivec 00000000
> ....
>
>
> My Kernel-Image is
>
> ## Booting image at 40040000 ...
>    Image Name:   Linux-2.4.4
>    Created:      2002-07-17  10:40:49 UTC
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    614209 Bytes = 599 kB = 0 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
>
> I didn't create a new kernel, but I used one that was already
> pre-installed on the board. Could this one be the reason
> for the above error?
>
> I am stuck and don't know how to continue, therefore I
> would be very grateful if someone could give me some advice.
>
> Thanks very much in advance.
>
> Andreas
>
> --
> +++ GMX - Mail, Messaging & more  http://www.gmx.net +++
> NEU: Mit GMX ins Internet. Rund um die Uhr für 1 ct/ Min. surfen!
>
>
>

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Re: 3Com 574BT PCMCIA Card on PowerPC

[Wolfgang Denk]

In message <2651.1044014678@www39.gmx.net> you wrote:
>
> I have seen that there exists already a solution
> for a wireless LAN card. I took these steps as

Which one are you talking about? Where did you get the kernel sources
and the PCMCIA CS package from?

> ## Booting image at 40040000 ...
>    Image Name:   Linux-2.4.4
>    Created:      2002-07-17  10:40:49 UTC
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)

Looks suspiciously like one of "our" source trees. But  this  version
is  much  too  old  for  WLAN support; this was added / fixed several
months later.

> I didn't create a new kernel, but I used one that was already
> pre-installed on the board. Could this one be the reason
> for the above error?

Definitely. You will need a current kernel,  and  currend  PCMCIA  CS
package.


Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Niklaus Wirth has lamented that, whereas Europeans pronounce his name
correctly  (Ni-klows  Virt),  Americans  invariably  mangle  it  into
(Nick-les  Worth).  Which  is to say that Europeans call him by name,
but Americans call him by value.

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Re: 3Com 574BT PCMCIA Card on PowerPC

[Andreas Plaickner]

Hello,

thanks a lot for the answers and the suggestion to create
a new kernel.

On Fri, 31 Jan 2003, Wolfgang Denk wrote:

> > I have seen that there exists already a solution
> > for a wireless LAN card. I took these steps as
>
> Which one are you talking about? Where did you get the kernel sources
> and the PCMCIA CS package from?

I am working in a university, and there I got the sources.

> > I didn't create a new kernel, but I used one that was already
> > pre-installed on the board. Could this one be the reason
> > for the above error?
>
> Definitely. You will need a current kernel,  and  currend  PCMCIA  CS
> package.

The steps on how to build a RAM-Disk explained in a previous posting,
I think I have done right.

I have a question regarding the building of a new kernel. The eldk,
linux-2.4 kernel and pcmcia-cs-3.2.0.tgz tarball are needed.
They can be downloaded on www.denx.de.
For the kernel there are two modules available, according to
ftp://ftp.denx.de/pub/RTAI/24.1.10/README.install
the linux-2.4 is used. Is this ok, or should the linuxppc_2_4_devel
be used?

Then I think it is necessary to apply the latest patch, depending on the
module chosen.

In ftp://ftp.denx.de/pub/RTAI/24.1.10/README.install point 3 says,

3. Configure and make the RTAI patched Linux kernel:

   $ export CROSS_COMPILE=ppc_8xx-
   $ make TQM860L_config
....

I use a board of TTTech, with MPC855T processor. Do you have any
suggestions if this make is alright or I need to change, or let away?
.....
   $ make dep
   $ make pImage
   $ cp -p arch/ppc/mbxboot/pImage /tftpboot

Can this image already be used on the PowerPC. I tried once, but
it was not possible. Is it possible to compile RTAI somehow into the
kernel and to load this so created kernel onto the board? Or are
the next steps described in README.install also necessary?

Thanks a lot in advance for any suggestions.

Andreas


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NEU: Mit GMX ins Internet. Rund um die Uhr für 1 ct/ Min. surfen!


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