Hi,linuxers
I am total newbie to embedded linux systems.
I trying to connect the 8xxrom to my MPC860ADS board.
Can someone tell me how do I load the kernel onto the board.
I have 2M flash(29f040) and 4M dram(mcm51816) only.
I understood the 8xxrom need additional memory for linux kernel.Is that right ?
I saw MPC8XX_XIN is 4MHz in config.h(No ifdef) but my ADS860 B'd has 5MHz. I want to know this code was tested to ADS860 B'd.
Because this is first time to make a kind of bootrom, my question has something wrong maybe.
I will looking forward to your help.
Regards,
Jinoung
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Hi,
Nowadays, I'm trying load the kernel on my custom board. (which has MPC860)
when I was following the procedure : initialize console on SMC2, memory allocation for kernel and ramdisk...
there was a problem. The compressed kernel image wasn't loaded. So the procedure stopped on gunzip process.
I use AMC BDM port, and I speculate the messages.
It's the message when kernel is loaded.
---------------------------------------
LOAD 'c:\860source\zvmlinux.initrd'
Warning: symbols deleted - check use in macros etc.
Loading section '.text' located at 0x00400000..0x004046E4
Loading section '.rodata' located at 0x004046F0..0x00404B90
Loading section '.data' located at 0x00405000..0x0040530C
Loading section '.bss' located at 0x00406000..0x0040B1F0
Warning:
'main' function not found in file: c:\860source\zvmlinux.initrd
Note: in startup routine. Enter STEP to go to High-level module.
This is the section map through the command 'objdump -h zvmlinux.initrd'
--------------------
zvmlinux.initrd: file format elf32-big
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 000046e4 00400000 00400000 00010000 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .rodata 000004a0 004046f0 004046f0 000146f0 2**4
CONTENTS, ALLOC, LOAD, READONLY, DATA
2 .data 0000030c 00405000 00405000 00015000 2**2
CONTENTS, ALLOC, LOAD, DATA
3 .bss 000051f0 00406000 00406000 00016000 2**2
ALLOC
4 .image 00064605 00000000 00000000 00016000 2**0
CONTENTS, READONLY
5 .initrd 00201d19 00000000 00000000 0007a605 2**0
CONTENTS, READONLY
Why weren't .image, .initrd section loaded? Because they aren't elf format file?
But I tried. I changed the zipped files into elf data file as
.byte 0x00 0x00 blah blah blah...
And there was the same message, only four sections were loaded.
What can I do? I haven't any idea.
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