Hi..
I have a problem for porting PPC-BOOT to STT755EMC.
Here is my BD spec.
CPU: MPC750 ( main core ) + MPC8260 ( companion only )
L2 cache: 1M
SDRAM on 60x bus: 64M
SDRAM on Local bus: 32M
FLASH: 8MB
10/100 Base T port on FFC2
Dual RS232 port residing SMC1 & SMC2.
The problem is cache.
Whenever boot process reach at cache init code,
all system is stoped!. No more progress!
But if the cache init code is commented out from boot codes,
Everything's fine except perfomence.
I don't know why the code doesn't work. please help..
Here is the code i used.
/* icache_enable */
mfspr r3, HID0
li r5, HID0_ICFI|HID0_ILOCK
andc r3, r3, r5
ori r3, r3, HID0_ICE
ori r5, r3, HID0_ICFI
mtspr HID0, r5
mtspr HID0, r3
isync
/* dcache_enable */
mfspr r3,HID0
ori r3,r3,HID0_DCE | HID0_DCFI
sync
mtspr HID0,r3
Thanks
ps ) sorry for my previous Multi-mimed mail.
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