diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2014-10-11 08:37:48 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2014-10-11 08:37:48 +0200 |
| commit | e9f0638ef97a854899fd3cca734a91e682e3953c (patch) | |
| tree | cd9b1e54d9354fca34e465a13d7e95e244df36b0 /target/m68k/qemu-m68k/patches/3.16.4/qemu-coldfire.patch | |
| parent | 618e0b61bc296740d04485167f8370536a25e7fd (diff) | |
| parent | f0a578df945e3680efb0dffc7915accf19e60716 (diff) | |
Merge branch 'master' of git+ssh://openadk.org/git/openadk
Diffstat (limited to 'target/m68k/qemu-m68k/patches/3.16.4/qemu-coldfire.patch')
| -rw-r--r-- | target/m68k/qemu-m68k/patches/3.16.4/qemu-coldfire.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/m68k/qemu-m68k/patches/3.16.4/qemu-coldfire.patch b/target/m68k/qemu-m68k/patches/3.16.4/qemu-coldfire.patch new file mode 100644 index 000000000..503fe8ef3 --- /dev/null +++ b/target/m68k/qemu-m68k/patches/3.16.4/qemu-coldfire.patch @@ -0,0 +1,24 @@ +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-3.16.orig/arch/m68k/Kconfig.cpu linux-3.16/arch/m68k/Kconfig.cpu +--- linux-3.16.orig/arch/m68k/Kconfig.cpu 2014-08-04 00:25:02.000000000 +0200 ++++ linux-3.16/arch/m68k/Kconfig.cpu 2014-08-13 16:58:59.568332805 +0200 +@@ -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. + |