ARM: introduce atag_offset to replace boot_params

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The boot_params member of the mdesc structure is used to provide a
default physical address for the ATAG list.  Since this value is fixed
at compile time and sometimes based on constants such as ARCH_PHYS_OFFSET,
it gets in the way of runtime PHYS_OFFSET and CONFIG_ARM_PATCH_PHYS_VIRT
usage.

Let's introduce atag_offset which should contains only the relative
offset from PHYS_OFFSET instead of an absolute value, in preparation
to move all instance of boot_params over to it.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: Petr Štetiar <ynezz@true.cz>
Acked-by: Arnd Bergmann <arnd@arndb.de>

...

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Nicolas Pitre 2011-07-05 22:38:10 -04:00 • committed by Nicolas Pitre

parent 93ee7a9340

commit 2bb9839e31

2 changed files with 3 additions and 0 deletions

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1

arch/arm/include/asm/mach/arch.h

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2

arch/arm/kernel/setup.c

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