Bootloader 8xxrom on ADS860, gcc 2.95

Ruedi.Hofer at ascom.ch Ruedi.Hofer at ascom.ch
Mon Apr 10 23:59:08 EST 2000


Hi

I'm using almost the standard 8xxrom bootloader on my ADS860 board.

When I cross compile it on my I386 Linux host using the egcs-2.91, it works ok.

When I cross compile it on my I386 Linux host using the gcc 2.95.2, it doesn't work.
That means, it always crashes like:

-----
8xxROM 0.3.0

compiletime options:
board: ADS DRAM_25MHZ
disk: DISK_ATA PCMCIABUG

cpu: XPC860xxZPnnA3 at 25 MHz: 4Kbyte icache 4Kbyte dcache

<warning: cpu core has silicon bugs, check the errata>

board: ADS rev A - warning, read errata
flash: 2 Mbytes, delay 90 ns
dram: 32 Mbyte, 70 ns, OK
pcmcia: 5V and 3V
pcsr = 0x0070fe70

ATA disk: 'SunDisk SDP'.

Boot device list:ata.c : Card Not Ready 0x0

disk: No disk found.
NIP: 00000000 XER: E0004A7F LR: FE004604 REGS: 01fefb80 TRAP: 1000
MSR: 00001002 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00

GPR00: 00000000 01FEFC70 FE004310 00000000 00000001 01FEFC88 FFFFFFFB 01FEFE10
GPR08: 00000000 FE00B264 00000000 00012600 01FEFD48 1011AFB0 000125C0 00000000
GPR16: 00000000 00000000 00000002 FE010000 00009032 000125B8 00010000 C0002544
GPR24: 00000002 00000001 00000001 01FF0000 01FEFEE8 FF002FDC 01FEFF08 01FEFEA8
Call backtrace:
Software Emulation Exception
-----

Did someone encounter the same problem??

Maybe the gcc 2.95 does some better optimisations!

Cheers, Ruedi


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