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 f?r 1 ct/ Min. surfen! ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
