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: 929a9c6ae0e1 ("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>

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 79cf7ac918b84175447157e4d4375d61c43d8462..a64346c209041851b2acac5e479de917c175bdea 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -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.