Franck,

Try to check that the board info structure exchanged by u-boot and the kernel use the same bd_t definition. Kernel from Montavista for the Walnut board generally use a board info structure definition relative to the IBM bootloader. If it's the case, you need to replace the bd_t structure defined in arch/ppc/platforms/walnut.h by the one found in include/asm-ppc/ppcboot.h

Hope this helps,

Laurent

"Frank Young" young726@hotmail.com Sent by: u-boot-users-admin@lists.sourceforge.net 09/07/04 00:46

To: u-boot-users@lists.sourceforge.net cc: Subject: [U-Boot-Users] C function call in Linux kernel

Hi,

This is probably not a typical u-boot question. Forgive me if you think this is not a proper place to post. I just want to find someone who happens to have the same experience.

I have installed u-boot 1.0.0 on my walnut board with PPC405. But when I tried to load the kernel from monta vista (I am using 3.0 pro), the system

hangs after "# Transferring control to Linux (at address 00000000) ...". The console output is attached at the end of this email. I checked the kernel and found the kernel was started but it was stopped when the early_init() in kernel/head_4xx.S is called. early_init() is a c function. So I guess there must be something wrong with the memory configuration thus it affects the stack setup. Does anyone have any clue what is happening here?

BTW, since I am using kernel 2.4.18, I don't think I have to set clocks_in_mhz. I tried it though, it doesn't work.

Thanks!

======================================================== => bootm ## Booting image at 00400000 ... Image Name: Linux-2.4.18_mvl30-walnut Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 631784 Bytes = 617 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK ## Current stack ends at 0x01FBBB98 => set upper limit to 0x00800000 ## cmdline at 0x007FFF00 ... 0x007FFF48 bd address = 0x01FBBF84 memstart = 0x00000000 memsize = 0x02000000 flashstart = 0xFF800000 flashsize = 0x00400000 flashoffset = 0x00000000 sramstart = 0x00000000 sramsize = 0x00000000 bootflags = 0x0000A000 procfreq = 200 MHz plb_busfreq = 100 MHz pci_busfreq = 25 MHz ethaddr = 00:00:48:B9:00:52 IP addr = 138.31.3.77 baudrate = 9600 bps No initrd # Transferring control to Linux (at address 00000000) ...

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