On Sun, Jan 30, 2005 at 02:24:34AM +0100, Wolfgang Denk wrote:
In message 20050130002030.GA24482@gate.ebshome.net you wrote:
As a side note, "Setup temporary stack" is completely bogus and isn't needed, at least for 4kc which has a write-through dcache (4kc is the only MIPS arch currently supported, btw).
Supported where or by what? You aren't speaking about U-Boot here, right? Because Infineon's Purple board is a 5Kc system.
This is taken from cpu/mips/config.mk
MIPSFLAGS=$(shell \ if [ "$v" -lt "14" ]; then \ echo "-mcpu=4kc -EB -mabicalls"; \ else \ echo "-march=4kc -mtune=4kc -Wa,-mips_allow_branch_to_undefined -EB -mabicalls"; \ fi)
Also, this is part from Makefile:
ifeq ($(ARCH),mips) CROSS_COMPILE = mips_4KC- endif
So, what is all this then, an exercise in obfuscation? I can tell, it was successfully, I really thought only 4kc is supported, my apologies, Wolfgang.
Anyway, my comment still stands, this is bogus and cannot work for 4kc at least. The only reason INCA-IP port works is because memory is really initialized before stack is accessed.
-- Eugene