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[ARM] 4712/2: Adds functions to read and write IXP4xx "feature" bits

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Adds functions to read and write IXP4xx "feature" (aka "fuse")
bits, containing information about available/enabled CPU features.

The uncompress.h included by boot/compressed/misc.c resides in
a different space than rest of the kernel and thus can't use
asm/hardware.h (including asm/arch/cpu.h - which, in turn, may use
EXPORTed symbol "processor_id").

Posted to linux-arm-kernel on 2 Dec 2007 and revised.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Krzysztof Halasa
2007-12-18 03:53:27 +01:00
committed by Russell King
parent a9a424ce9a
commit c18f65816e
5 changed files with 52 additions and 8 deletions
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1
arch/arm/kernel/setup.c
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@@ -62,6 +62,7 @@ extern int root_mountflags;
extern void _stext, _text, _etext, __data_start, _edata, _end;
unsigned int processor_id;
EXPORT_SYMBOL(processor_id);
unsigned int __machine_arch_type;
EXPORT_SYMBOL(__machine_arch_type);