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authorNicolas Pitre <nicolas.pitre@linaro.org>2011-07-05 22:38:10 -0400
committerNicolas Pitre <nico@fluxnic.net>2011-08-21 17:09:13 -0400
commit2bb9839e312ed55a6d5824ffa6077ce3d7d63b1e (patch)
treec71d4cc38c828784a96d5cbbc6bfb53ef336a911 /arch/arm/include/asm/mach
parent93ee7a9340d64f20295aacc3fb6a22b759323280 (diff)
downloadlinux-2bb9839e312ed55a6d5824ffa6077ce3d7d63b1e.tar.bz2
ARM: introduce atag_offset to replace boot_params
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>
Diffstat (limited to 'arch/arm/include/asm/mach')
-rw-r--r--arch/arm/include/asm/mach/arch.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 217aa1911dd7..cc240c03efec 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -18,6 +18,7 @@ struct machine_desc {
unsigned int nr; /* architecture number */
const char *name; /* architecture name */
unsigned long boot_params; /* tagged list */
+ unsigned long atag_offset; /* tagged list (relative) */
const char **dt_compat; /* array of device tree
* 'compatible' strings */