[U-Boot] [Coldfire] Crash when writing into memory (mtest, tftpboot, ...)

[Metalod]

Hi,
I have a custom board, based on Freescale M5271EVB, use codesourcery
toolchains 2010.09-41.
Board code are almost same as the evb board:
- include/configs/M5271EVB.h
- board/freescale/m5271evb/
- arch/m68k/cpu/mcf52x2/

$ export CROSS_COMPILE=...
$ make M5271EVB_config
$ make
1. I got linking error in version 2010-09 and later: libgcc.o not found.
It is just fine in 2010-06, which use libgcc.a from the toolchains.
How to change back the build rules to link to libgcc.a in the latest
version of u-boot?

2. I have u-boot 2010-06 booted on my board. Everything seems ok
(uart, ethernet, ram, flash,...)
 * 0x00000000 - 0x00FFFFFF      SDRAM 16M
 * 0x20000000 - 0x2000FFFF      Int SRAM 64k
 * 0xFF800000 - 0xFFFFFFFF      Flash 8M

==========
U-Boot 2010.06-svn8 (Jan 26 2011 - 10:08:06)
CPU:   Freescale ColdFire MCF5271 rev. 1, at 100 MHz
Board: TEST
DRAM:  16 MiB
Top of RAM usable for U-Boot at: 01000000
Reserving 132k for U-Boot at: 00fde000
Reserving 264k for malloc() at: 00f9c000
Reserving 58 Bytes for Board Info at: 00f9bfc6
Reserving 48 Bytes for Global Data at: 00f9bf96
Reserving 64k for boot parameters at: 00f8bf96
Stack Pointer at: 00f8bf78
Start relocate of code from ff800400 to 00fde000
Now running in RAM - U-Boot at: 00fde000
FLASH: Manufacturer ID: 0001
Manufacturer: AMD (Spansion)
Device ID: 227E
Mirror Bit flash: addr[14] = 00002210  addr[15] = 00002200
Chip: S29GL064N
flash_protect ON: from 0xFF800400 to 0xFF81AAFF
protect on 0
protect on 1
protect on 2
protect on 3
protect on 4
protect on 5
protect on 6
protect on 7
protect on 8
8 MiB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
U-Boot relocated to 00fde000
Net:   FEC0
### main_loop entered: bootdelay=5

### main_loop: bootcmd="<UNDEFINED>"
>
==========

But if I run mtest (0x400 - 0x380000), it crashed:
> mtest
==========
Pattern 00000000  Writing...  Reading...

*** Unexpected exception ***
Vector Number: 3  Format: 04  Fault Status: 4

PC: 00fe73a2    SR: 00002019    SP: 00f8bd8c
D0: 00018a9f    D1: 0000000a    D2: ffffffff    D3: 00000000
D4: 00000000    D5: ffffffff    D6: 00018aa0    D7: 00f9bf96
A0: 00062e7d    A1: 00fe54ca    A2: 00062e80    A3: 00000002
A4: 00000400    A5: 00ff6300    A6: 00f8bdfc

*** Please Reset Board! ***
==========
Vector #3 is Invalid Address.
PC is at do_mem_mtest() @ 0x176
==========
#else /* The original, quickie test */
	incr = 1;
	for (;;) {
		if (ctrlc()) {
 16e:	2d48 fff8      	movel %a0,%fp@(-8)
 172:	206e fff8      	moveal %fp@(-8),%a0
 176:	4e90           	jsr %a0@
 178:	4a80           	tstl %d0
 17a:	6600 0088      	bnew 204 <do_mem_mtest+0x122>
			putc ('\n');
			return 1;
		}
==========
I remove calling ctrlc(), then it is only fine if I run mtest 0x400 0x190a00
Memory dump:
==========
> md 190cd0 64
00190cd0: ....md.190cd0.64
00190ce0: ...&..|....(....
...
00190dc0: .......D...J....
00190dd0: ....md 190cd0 64
00190de0: ...........l....
...
00190e00: .....### main_lo
00190e10: op: bootcmd="<UN
00190e20: DEFINED>".......
==========
I have no idea why the command i just typed is in this address.
The problem seems u-boot memory is overwritten, But I think it must be
in the preserved range (> 00f8bf96) after relocating.

Thanks in advance.