You have a load address and entry point of 0x0. You can't load and run Linux at 0x0. Try something more sensible like 0x400000.
Chuck
-----Original Message----- From: u-boot-users-admin@lists.sourceforge.net [mailto:u-boot-users-admin@lists.sourceforge.net]On Behalf Of Andy Hawkins Sent: Tuesday, February 24, 2004 5:45 AM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] Problems with u-boot, PPChameleonEVB and MontaVista kernel
Hi all,
I'm trying to get up and running with u-boot on a PPChameleonEVB, running the MontaVista kernel.
I can successfully compile u-boot 1.0.0-pre and the kernel that came with the board (2.4.20 from the eldk), and boot the board successfully.
However, when I try to compile the MontaVista kernel, the board will not boot. Their kernel doesn't directly support the PPChameleonEVB, so I'm using the one for the IBM 405EP eval (which the PPChameleon appears to be very similar to). I'm 'manually' running make pImage to build the kernel after the MontaVista targetconf tool has run the build, and booting from vmlinux.PPCBoot using tftp.
I've been in touch with MontaVista, and they suggest re-building u-boot, but changing the definition of the bd_info struction (in include/asm-ppc/u-boot.h) to match that in the kernel. I've done this, but the boot still stops in the same place.
I've compiled u-boot in debug mode, and this is what we see:
reset
U-Boot 1.0.0-pre (Feb 24 2004 - 10:11:24)
CPU: IBM PowerPC 405EP Rev. B at 133.333 MHz (PLB=133, OPB=66, EBC=33 MHz) IIC Boot EEPROM disabled PCI async ext clock used, internal PCI arbiter enabled 16 kB I-Cache 16 kB D-Cache Board: ### No HW ID - assuming PPChameleonEVB I2C: ready DRAM: 32 MB Top of RAM usable for U-Boot at: 02000000 Reserving 182k for U-Boot at: 01fd2000 Reserving 257k for malloc() at: 01f91900 Reserving 132 Bytes for Board Info at: 01f9187c Reserving 48 Bytes for Global Data at: 01f9184c Stack Pointer at: 01f91828 New Stack Pointer is: 01f91828 Now running in RAM - U-Boot at: 01fd2000 FLASH: 4 MB U-Boot relocated to 01fd2000 NAND:Probing at 0xff000000 32 MB ### main_loop entered: bootdelay=10
### main_loop: bootcmd="run nfsargs addip addcons;bootm $(kernel_addr)" Hit any key to stop autoboot: 10 0 => run net_selc f
ENET Speed is 10 Mbps - HALF duplex connection TFTP from server 191.53.51.21; our IP address is 191.53.51.200 Filename 'vmlinux.PPCBoot'. Load address: 0x200000 Loading:
[snip tftp progress]
done Bytes transferred = 629509 (99b05 hex) ## Booting image at 00200000 ... Image Name: Linux-2.4.18_mvl30-405ep_eval Created: 2004-02-24 10:18:07 UTC Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 629445 Bytes = 614.7 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK ## Current stack ends at 0x01F911D8 => set upper limit to 0x00800000 ## cmdline at 0x007FFF00 ... 0x007FFF70 bd address = 0x01F9187C memstart = 0x00000000 memsize = 0x02000000 flashstart = 0xFFFC0000 flashsize = 0x00400000 flashoffset = 0x00029B00 sramstart = 0x00000000 sramsize = 0x00000000 bootflags = 0x0000A000 procfreq = 133.333 MHz plb_busfreq = 133.333 MHz pci_busfreq = 33.333 MHz ethaddr = 00:50:C2:1E:AF:FE eth1addr = 00:50:C2:1E:AF:FD IP addr = 191.53.51.200 baudrate = 115200 bps ## Loading RAMDisk Image at ffd00000 ... Image Name: Simple Embedded Linux Framework Created: 2002-10-24 9:30:38 UTC Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 1476478 Bytes = 1.4 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## initrd at 0xFFD00040 ... 0xFFE687BD (len=1476478=0x16877E) Loading Ramdisk to 01e28000, end 01f9077e ... OK ## Transferring control to Linux (at address 00000000) ...
I do have access to a BDI2000, that I've used to break into a running kernel (at start_here), but can't get it to break when I use the MontaVista kernel. From this, I assume that it's failing somewhere very early in the linux boot process.
Can anyone offer any advice?
Many thanks.
Andy
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