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- m68k: enabled software emulation of separate supervisor/user stack
- Recent Coldfires have separate supervisor and user stack pointers, but
- since older Coldfires didn't have that, the Linux kernel has a kind of
- emulation mechanism for those pointers.
- Apparently, according to the Kconfig.cpu file, the 5208 is supposed to
- support such separate pointers, but Qemu doesn't implement it. So we
- cheat a bit here and force the usage of emulated separate stack
- pointers.
- Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
- diff -Nur linux-3.14.26.orig/arch/m68k/Kconfig.cpu linux-3.14.26/arch/m68k/Kconfig.cpu
- --- linux-3.14.26.orig/arch/m68k/Kconfig.cpu 2014-12-06 17:56:06.000000000 -0600
- +++ linux-3.14.26/arch/m68k/Kconfig.cpu 2014-12-28 03:00:39.279037664 -0600
- @@ -146,6 +146,7 @@
- depends on !MMU
- select GENERIC_CLOCKEVENTS
- select HAVE_CACHE_SPLIT
- + select COLDFIRE_SW_A7
- help
- Freescale Coldfire 5207/5208 processor support.
-
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