Hi Bob,
rwarner wrote:
Michael Schnell wrote:
I read that the now officially released Kernel 2.6.25 offers a lot of
goodies for embedded / soft-realtime systems.
Will this version included in the tools (Buildroot etc) ?
Is it recommended to use 2.6.25 for new projects ?
Did they fix the ARM no mmu stuff in the kernel for the ARM7TDMI?
By "they" do you mean me?
I have been sending patches to Russell to get the last
remaining core pieces for non-MMU ARM included in mainline.
Otherwise no-one else is doing it.
He accepted 2 patches to fix compile problems in head.S.
So it is a little closer again. Still not complete though.
Thing is, this isn't a case of just throwing patches at Russell.
The changes need to be re-worked and acceptable to him before
they will go in.
The 2 most critical outstanding pieces is the consistent-nommu
handling, and the non-MMU fault changes. Both are not large, and
it isn't clear to me yet how Russell wants them structured to
be acceptable.
Now of course ARM7TDMI is too generic to really be useful
anyway. ARM7TDMI from almost every vendor is different in
terms of interrupt setup, timers and memory map. So there are
SoC specifics that need to be handled as well. I am only working
with, and maintaining, the AT91M40 currently.
Last
time i tried it the build was broken and someone admitted it was not
maintained since the last attempt 2.6.14?
non-MMU ARM has never be in mainline, not in 2.6.14, not ever.
I have been keeping and updating patches (kept in the uClinux-dist
linux-2.6.x sources).
In addition, the XIP portion
of the kernel also appeared broken for the ARM7TDMI.
Has it ever worked in the 2.6 series kernels?
Regards
Greg
------------------------------------------------------------------------
Greg Ungerer -- Chief Software Dude EMAIL: [EMAIL PROTECTED]
Secure Computing Corporation PHONE: +61 7 3435 2888
825 Stanley St, FAX: +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia WEB: http://www.SnapGear.com
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