Hi all

I am new at this, so excuse my ignorance, but I have been playing with u-boot and have hit a bit of a wall with loading the kernel.

The u-boot and kernel are compiled for PPC. The kernel is mkimaged to a uImage.

i am loading it to RAM with tftp, and running it with bootm <addr>.

Up to the point where it 'Transfers to Linux', everything looks OK, but after that I get no more tracing.

mpc8313> bootm 0x01000000 ## Current stack ends at 0x0ff01be0 * kernel: cmdline image address = 0x01000000 ## Booting kernel from Legacy Image at 01000000 ... Image Name: Image Type: PowerPC Linux Kernel Image (uncompressed) Data Size: 6348856 Bytes = 6.1 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK kernel data at 0x01000040, len = 0x0060e038 (6348856) ## No init Ramdisk ramdisk start = 0x00000000, ramdisk end = 0x00000000 ## No Flattened Device Tree Continuing to boot without FDT Initial value for argc=3 Final value for argc=3 Loading Kernel Image ... OK kernel loaded at 0x00000000, end = 0x0060e038 ## initrd_high = 0x10000000, copy_to_ram = 1 ramdisk load start = 0x00000000, ramdisk load end = 0x00000000 Initial value for argc=3 Final value for argc=3 Initial value for argc=3 Final value for argc=3 ## cmdline at 0x0ff007e0 ... 0x0ff007fc ## kernel board info at 0x0ff00790 bd address = 0x0ff01fb0 memstart = 0x00000000 memsize = 0x10000000 flashstart = 0xfc000000 flashsize = 0x04000000 flashoffset = 0x00000000 sramstart = 0x00000000 sramsize = 0x00000000 bootflags = 0x00000000 intfreq = 333.333 MHz busfreq = 133.333 MHz ethaddr = 00:D1:11:A4:03:37 eth1addr = (not set) IP addr = 10.0.0.20 baudrate = 115200 bps relocaddr = 0x0ff84000 ## cmdline at 0x0ff00390 ... 0x0ff003ac ## Transferring control to Linux (at address 00000000) ... Booting using board info...

Is this Linux failing to run, or Linux failing to trace?

Also, do I need to create a separate FDT or does the kernel compile with one built in (I dont see a specific option to control this in the kernel config)?

Thanks in advance for any help here.

-- Sent from: http://u-boot.10912.n7.nabble.com/