[U-Boot-Users] hang after "Transferring Control to Linux": bd_info difference ?

[Josef Angermeier]

Dear u-boot-users,

u-boot works on my custom board (MPC875, 64MB RAM, 16MB flash) but linux
hangs (see debug console output below) when started with bootm-command. 

I am using the ELDK 3.1.1 kernel sources (version 2.4.25) and a u-boot CVS
version which is slightly newer than the 1.1.3 release. CLOCKS_IN_MHZ is not
defined in my u-boot board config file and the IMMR define is in kernel and
u-boot board config file identical.

I noticed, that bd_info structure in u-boot/asm-ppc/u-boot.h and eldk/ppc_8xx/
usr/src/linux/include/asm-ppc/ppcboot.h differ abit: in the kernel sources a

	mon_fnc_t	*bi_mon_fnc;	/* Pointer to monitor functions	*/
} bd_t;

pointer to monitor funcs is defined, which is does not appear in u-boot.h. Is
this intended or a bug ?

What else could i tryout before analyzing kernel log buffer and debugging the
kernel ?

best regards,

Josef



---------------- SERIAL DEBUG OUTPUT ------------------------------

U-Boot 1.1.3 (Feb 20 2006 - 09:31:08)

CPU:   MPC885ZPnn at 40 MHz: 8 kB I-Cache 8 kB D-Cache FEC present
clock 40000000Hz != 100000Hz
You made sure it's an ESM this is running on, right?
DRAM:  64 MB
Top of RAM usable for U-Boot at: 04000000
Reserving 203k for U-Boot at: 03fcd000
Reserving 2564k for malloc() at: 03d4c000
Reserving 60 Bytes for Board Info at: 03d4bfc4
Reserving 48 Bytes for Global Data at: 03d4bf94
Stack Pointer at: 03d4bf78
New Stack Pointer is: 03d4bf78
Now running in RAM - U-Boot at: 03fcd000
FLASH: 61.3 MB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
U-Boot relocated to 03fcd000
Net:   FEC ETHERNET
=> bootm 0xe0080000
## Booting image at e0080000 ...
   Image Name:   Linux-2.4.25
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    284357 Bytes = 277.7 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Current stack ends at 0x03D4BCE8 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF00
bd address  = 0x03D4BFC4
memstart    = 0x00000000
memsize     = 0x04000000
flashstart  = 0xE0000000
flashsize   = 0x03D4BF78
flashoffset = 0x00000000
sramstart   = 0x00000000
sramsize    = 0x00000000
immr_base   = 0xFF000000
bootflags   = 0x00000001
intfreq     =     40 MHz
busfreq     =     40 MHz
ethaddr     = D6:60:1B:EF:B4:11
IP addr     = 131.188.51.169
baudrate    =  38400 bps
No initrd
## Transferring control to Linux (at address 00000000) ...