Re: How to boot powerPC linux-2.6.10 from diifferent address other than 0x0000
You need to do two things:
- mem remap your boot sector memory block to virtual address 0xc0008000
- using uboot commond "go xxx" to boot it from 0xc0008000, or define env variable "bootcmd", and run "boot".
We are working on MPC 8540, Linux kernel version is 2.6.10 from Montavista. The
bootloader used in Uboot and currently it loads the uImage at physical memory
address 0x0 and transfers control to it. We want to load the kernel at a
different address say 0x8000 and for this we made the following
1) Altered the
Makefile to linked the kernel at virtual address 0xc0008000 ( the default was
2) Modified Uboot to
load kernel at 0x8000 instead of 0x0
The kernel space still starts from
When we transferred
control to the kernel (loaded at 0x8000) we found that the execution proceeds
only till the mapping and invalidation on TLBs. We do not know where the
control goes after this as the further instructions does not seems to get
executed. Currently we do not have the provision to connect a debugger and hence
we are unable to make out what is happening.
Can some one
give us any clue as to what we might have done wrong? This is our first
experience on PowerPC.