From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <3AD1B33D.439A45D2@enst.fr> Date: Mon, 09 Apr 2001 15:03:57 +0200 From: Stefan Nunninger Reply-To: nunninger@web.de MIME-Version: 1.0 To: linuxppc-embedded List Subject: How to debug ethernet Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hello, I got problems to get the ethernet working on my board with Montavista linux 2.2.14. As I'm using a custom board with a MPC860 I adjusted the ethernet driver to reflect the configuration of my board. To do so I changed the file /arch/ppc/8xx_io/commproc.h the values for ethernet (SCC1) as follows: #define PA_ENET_RXD ((ushort)0x0001) /* Pin 15 Port A */ #define PA_ENET_TXD ((ushort)0x0002) /* Pin 14 Port A */ #define PA_ENET_TCLK ((ushort)0x0200) /* Pin 6 Port A */ #define PA_ENET_RCLK ((ushort)0x0100) /* Pin 7 Port A */ #define PB_ENET_TENA ((ushort)0x00001000) /* Pin 19 Port B */ #define PC_ENET_CLSN ((ushort)0x0010) /* Pin 11 Port C */ #define PC_ENET_RENA ((ushort)0x0020) /* Pin 10 Port C */ In the file /arch/ppc/8xx_io/enet.c a changement was necessary as well a my TENA signal uses port B instead of port C. Now I see the receive LED on the ethernet card flashing when connected to a hub. Also while booting the kernel sends some RARP messages (transmit LED flashes as well). There is an answer from my BOOTP server. However my card seems not to react to this. Thus I get the impression my kernel is not able to receive the packets properly. I dumped the packets that go over the cable using tcpdump. My server is 137.194.161.13 called paris the card is aa:00:05:c2:a0:16 or 137.194.161.22 called paris2 using tcpdump 14:39:42.748407 B rarp who-is 137.194.161.22 tell 137.194.161.22 14:39:42.748423 > rarp reply 137.194.161.22 at 137.194.161.22 using tcpdump -n (numeric output) 14:39:33.521500 > 137.194.161.13.bootps > 255.255.255.255.bootpc: xid:0x9c99997b secs:13 Y:137.194.161.22 S:137.194.161.13 ether 137.194.161.22 [|bootp] (ttl 64, id 44655) 14:39:42.731635 > 137.194.161.13.bootps > 255.255.255.255.bootpc: xid:0x9c99997b secs:22 Y:137.194.161.22 S:137.194.161.13 ether 137.194.161.22 [|bootp] (ttl 64, id 44656) The logfile on the DHCP server contains these messages: Apr 9 14:30:38 paris dhcpd: BOOTREQUEST from aa:00:05:c2:a0:16 via eth0 Apr 9 14:30:38 paris dhcpd: BOOTREPLY for 137.194.161.22 to paris2.enst.fr (aa:00:05:c2:a0:16) via eth0 Apr 9 14:30:47 paris dhcpd: BOOTREQUEST from aa:00:05:c2:a0:16 via eth0 Apr 9 14:30:47 paris dhcpd: BOOTREPLY for 137.194.161.22 to paris2.enst.fr (aa:00:05:c2:a0:16) via eth0 Apr 9 14:30:58 paris dhcpd: BOOTREQUEST from aa:00:05:c2:a0:16 via eth0 Apr 9 14:30:58 paris dhcpd: BOOTREPLY for 137.194.161.22 to paris2.enst.fr (aa:00:05:c2:a0:16) via eth0 At the moment I have no idea how to figure out whats wrong. Please, could anybody suggest what might be worth trying. Thanks a lot Stefan For the case that it is important I attach the kernel output during booting. -------------------------------------------------------- decomp : ZIMAGE_OFFSET: 0001C1F0 INITRD_OFFSET: 00000000 INITRD_SIZE: 00000000 memory end_avail = 01000000 loaded at: 00550000 005505FC board data at: 005501C4 005501F0 relocated to: 00540100 0054012C ZIMAGE_OFFSET: 0001C1F0 ZIMAGE_SIZE : 00060FB9 zimage_start : 0055C1F0 zimage_size : 00060FB9 initrd_start : 00000000 initrd_end : 00000000 zimage at: 0055C1F0 005BD1A9 avail ram: 005BE000 01000000 Linux/PPC load: Uncompressing Linux... Gunzip ... Dest address : 00000000 Dest length : 00200000 Source address : 0055C1F0 zip flags look ok inflateInit2 returned OK Calling inflate Inflate returned OK done. Now booting the kernel mem_initialize, mp : FA200100 mem_initialize, mp->memc_mdr : FFFFFC04 mem_initialize, mp->memc_br0 : FFF00401 mem_initialize : done ! m8xx_setup.c::m8xx_init commandline = root=/dev/nfs rw Linux version 2.2.14 (stefan@paris.enst.fr) (gcc version 2.95.2 19991030 (2.95.1m8xx_setup.c::m8xx_setup_arch Boot arguments: root=/dev/nfs rw time_init: decrementer frequency = 120000000/60 Calibrating delay loop... 31.74 BogoMIPS Memory: 15112k available (772k kernel code, 460k data, 40k init) [c0000000,c100]Dentry hash table entries: 2048 (order 2, 16k) Buffer cache hash table entries: 16384 (order 4, 64k) Page cache hash table entries: 4096 (order 2, 16k) POSIX conformance testing by UNIFIX main.c::do_basic_setup Linux NET4.0 for Linux 2.2 Based upon Swansea University Computer Society NET3.039 NET4: Unix domain sockets 1.0 for Linux NET4.0. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP TCP: Hash tables configured (ehash 16384 bhash 16384) Initializing RT netlink socket kswapd_setup Starting kswapd v 1.5 start initialising the ram disk initrd_start = 0 root_mountflags 0 mount_initrd = 0 device_setup chr_dev_init CPM UART driver version 0.03 ttyS00 at 0x0280 is a SMC ttyS01 at 0x0380 is a SMC ttyS02 at 0x0100 is a SCC ttyS03 at 0x0200 is a SCC pty: 256 Unix98 ptys configured blk_dev_init ll_rw_blk.c::blk_dev_init harsect_size = c00fe3f8 blksize_size = c00fe438 blk_size = c00fe478 RAM disk driver initialized: 16 RAM disks of 4096K size loop.c::loop_init loop: registered device at major 7 sti passed behind sti net_dev_init eth0: CPM ENET Version 0.2, aa:00:05:c2:a0:16 Sending BOOTP and RARP requests...Send BOOTP packed .Send BOOTP packed .Send BOOTP packed .Send BOOTP packed .Send BOOTP packed .Send BOOTP packed .Send BOOTP packed .Send BOOTP packed .Send BOOTP packed .Send BOOTP packed . timed out! ** Sent via the linuxppc-embedded mail list. 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