Date: Sat, 28 May 2011 04:10:44 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/powerpc/booke locore.S machdep.c pmap.c Message-ID: <201105280410.p4S4Awag083691@repoman.freebsd.org>
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marcel 2011-05-28 04:10:44 UTC
FreeBSD src repository
Modified files:
sys/powerpc/booke locore.S machdep.c pmap.c
Log:
SVN rev 222400 on 2011-05-28 04:10:44Z by marcel
Better support different kernel hand-offs. When loaded directly
from U-Boot, the kernel is passed a standard argc/argv pair.
The Juniper loader passes the metadata pointer as the second
argument and passes 0 in the first. The FreeBSD loader passes
the metadata pointer in the first argument.
As such, have locore preserve the first 2 arguments in registers
r30 & r31. Change e500_init() to accept these arguments. Don't
pass global offsets (i.e. kernel_text and _end) as arguments to
e500_init(). We can reference those directly.
Rename e500_init() to booke_init() now that we're changing the
prototype.
In booke_init(), "decode" arg1 and arg2 to obtain the metadata
pointer correctly. For the U-Boot case, clear SBSS and BSS and
bank on having a static FDT for now. This allows loading the
ELF kernel and jumping to the entry point without trampoline.
Revision Changes Path
1.15 +29 -31 src/sys/powerpc/booke/locore.S
1.36 +32 -21 src/sys/powerpc/booke/machdep.c
1.42 +1 -1 src/sys/powerpc/booke/pmap.c
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