blob: 5bbda8c4df33322887e2ad3c2373d0b027286019 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
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.
|
