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MIPS: Make the default for PHYSICAL_START always 64-bit 

Make the default for PHYSICAL_START always 64-bit, ensuring that a
correct sign-extended value is used if a 32-bit image is loaded by a
64-bit system, and matching how the load address is set in platform
Makefile fragments (arch/mips/*/Platform) in the absence of the
PHYSICAL_START configuration option.

Of course PHYSICAL_START itself is a misnomer as the load address is
virtual rather than physical (or otherwise sign-extension would not
apply).

Fixes: 7aa1c8f47e ("MIPS: kdump: Add support")
Signed-off-by: Maciej W. Rozycki <macro@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Maxim Uvarov <muvarov@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18939/
Signed-off-by: James Hogan <jhogan@kernel.org>
This commit is contained in:
Maciej W. Rozycki 2018-03-26 19:11:51 +01:00 committed by James Hogan
parent 27c524d174
commit 8bda3e269e
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1 changed files with 1 additions and 2 deletions
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arch/mips/Kconfig
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@ -2853,8 +2853,7 @@ config CRASH_DUMP
config PHYSICAL_START
hex "Physical address where the kernel is loaded"
default "0xffffffff84000000" if 64BIT
default "0x84000000" if 32BIT
default "0xffffffff84000000"
depends on CRASH_DUMP
help
This gives the CKSEG0 or KSEG0 address where the kernel is loaded.