Hello
>>I've managed to compile U-Boot in a lowboot configuration : >> >># make MPC5200LITE_LOWBOOT_config >># <edit the config.mk of the board to set TEXTADDR> >> >> > >No such edit is necessary!!!! > > Oh, ok. I've changed it back, and recompiled / reinstalled U-boot just to be sure ( I don't think it can be of any influence but ... ) >> From there I download the freshly downloaded/compiled kernel image ( >>from denx cvs linux_2_4_devel, configured with icecube_5200_config ) and >>try to boot it : >> >> >... > > >>zone(1): 0 pages. >>zone(2): 0 pages. >>Kernel command line: >> >> > >You don't pass any "bootargs" here? Where is your root filesystem? > >See http://www.denx.de/twiki/bin/view/DULG/LinuxKernelArgs > > > I had none. I just planned to do it as soon as I got an unable to mount root error. To be sure it was not the problem, I took the pRamdisk file from ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/ppc_82xx/ as I seen from another post. To launch it I use : tftp 100000 mpc5200/uImage; tftp 200000 mpc5200/pRamdisk; bootm 100000 200000 The environment variable bootargs is set to "root=/dev/ram rw" The "new" output is included at the end , quite similar. One other weird things is that I was forced to setenv bootargs, then saveenv it, then reset to try to boot. If i just set the bootargs before the bootm, it decompressed the two images, but the kernel was not (apparently) starting ... >>POSIX conformance testing by UNIFIX >>PCI: Probing PCI hardware >>PCI: Cannot allocate resource region 0 of device 00:1a.0 >> >> > >This looks fishy. Is there a PCI card installed? Remove it!! > > Huh, no. The only things connected to the board are the alim, the serial cable, and a crossed RJ45 cable ( direct connection to my PC ). Jumper setting are all default execpt for the low boot settings. U-Boot seems to 'see' a device too : U-Boot 1.0.2 (Feb 12 2004 - 00:17:05) CPU: MPC5200 (JTAG ID 0001101d) at 396 MHz Bus 132 MHz, IPB 66 MHz, PCI 33 MHz Board: Motorola MPC5200 (IceCube) I2C: 85 kHz, ready DRAM: 64 MB FLASH: 16 MB PCI: Bus Dev VenId DevId Class Int 00 1a 1057 5803 0680 00 In: serial Out: serial Err: serial Net: FEC ETHERNET Maybe I'm mistaken, but isn't this the motorola itself ? >>But as you can see, it doesn't exactly do what I hoped ;) I was waiting >>for an "Unable to mount root" since I didn't put a rootfs yet but it >>crashes before that ( i think ) >> >> > >Did you modify the kernel configuration? Did you try passing useful >kernel boot arguments? > > At first, I tried with a kernel I compiled some time ago, when I ordered the board but didn't yet have it. ( 27 january ), and I had changed some stuff. When I saw it didn't work, I took a new fresh copy from cvs and make the default config and compiled it. Is a default, precompiled kernel image available somewhere ? Maybe my toolchain is producing weird binaries .... I'll try to install the toolchain from denx. Thanks for your help, Sylvain Munaut [ New output ] Bytes transferred = 1400262 (155dc6 hex) ## Booting image at 00100000 ... Image Name: Linux-2.4.24-pre2 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 635420 Bytes = 620.5 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK ## Loading RAMDisk Image at 00200000 ... Image Name: Simple Embedded Linux Framework Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 1400198 Bytes = 1.3 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Loading Ramdisk to 03e4b000, end 03fa0d86 ... OK Memory BAT mapping: BAT2=64Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.24-pre2 (tnt at 246tNt-main) (gcc version 3.4.0 20040127 (prerelease)) #4 Wed Feb 11 19:55:20 CET 2004 On node 0 totalpages: 16384 zone(0): 16384 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/ram rw Calibrating delay loop... 263.78 BogoMIPS Memory: 61372k available (1096k kernel code, 356k data, 60k init, 0k highmem) Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) Inode cache hash table entries: 4096 (order: 3, 32768 bytes) Mount cache hash table entries: 512 (order: 0, 4096 bytes) Buffer cache hash table entries: 4096 (order: 2, 16384 bytes) Page-cache hash table entries: 16384 (order: 4, 65536 bytes) POSIX conformance testing by UNIFIX PCI: Probing PCI hardware PCI: Cannot allocate resource region 0 of device 00:1a.0 Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket floating point used in kernel (task=c3e44000, pc=ffbad4c4) Oops: kernel access of bad area, sig: 11 NIP: FFF02448 XER: 20000000 LR: FFF00024 SP: C3E45FD0 REGS: c3e45f20 TRAP: 0300 Not tainted MSR: 0000b032 EE: 1 PR: 0 FP: 1 ME: 1 IR/DR: 11 DAR: 00016F88, DSISR: 22000000 TASK = c3e44000[1] 'swapper' Last syscall: 120 last math 00000000 last altivec 00000000 GPR00: FFBAD4C7 C3E45FD0 C3E44000 00000000 00001032 C3FDBF48 00000016 C3E4403C GPR08: C3E44000 C0150000 C3FDA03C C0150000 00000000 FFE7FFFF 03FFA000 00000000 GPR16: 00000001 FFFFFFFF 00000000 03FF432C C0130000 C014BC00 C0130000 00000001 GPR24: C0110000 00000002 C014BC00 00000000 00352B46 00000000 C014BC00 00016F88 Call backtrace: C00039B0 C0007498 Kernel panic: Attempted to kill init! <0>Rebooting in 180 seconds.. [ End of output ] ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
