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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-01-12 17:17:57 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-01-12 17:17:57 +0000
commitf4619025a51747a3788fd1bb6bdc46e368a889a7 (patch)
tree81b5c860e1e9b08dbf8ba292ae17eb9ac688f23a /arch/arm/mach-realview
parent90303b102353302e84758f245906368907e6a23b (diff)
[ARM] Allow r2 to be passed through the decompressor to the kernel
This is part of a patch from Marc Singer to allow r2 to be passed to the kernel. Marc's original comments follow: This revised R2 (atags pointer) patch incorporates comments from Nico Pitre and Ben Dooks. It modifies the head.S files such that the R2 value set by the bootloader is conveyed to the kernel startup code. The kernel head.S heuristically validates the pointer. It will set R2 to zero if it believes the pointer is invalid. Presently, it requires that the ATAGS list reside in the first 16KiB of physical RAM. Relaxing this contraint may be both desirable as well as tricky. Signed-off-by: Marc Singer <elf@buici.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-realview')
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