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| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-06-03 16:53:31 -0500 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2015-06-03 16:54:21 -0500 |
| commit | e38204a8348094cf703ad70680d4b50b865759e0 (patch) | |
| tree | 1ebb31885a3d30075c030c8c42ce3c678f96689f /target/m68k/qemu-m68k/patches/3.18.14/qemu-coldfire.patch | |
| parent | f81fe6f2d52cc051f11a9be53e937b242390a2d1 (diff) | |
update kernel to 3.18.14, refresh realtime and rpi patches
Diffstat (limited to 'target/m68k/qemu-m68k/patches/3.18.14/qemu-coldfire.patch')
| -rw-r--r-- | target/m68k/qemu-m68k/patches/3.18.14/qemu-coldfire.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/m68k/qemu-m68k/patches/3.18.14/qemu-coldfire.patch b/target/m68k/qemu-m68k/patches/3.18.14/qemu-coldfire.patch new file mode 100644 index 000000000..14d2f610b --- /dev/null +++ b/target/m68k/qemu-m68k/patches/3.18.14/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-3.17.7.orig/arch/m68k/Kconfig.cpu linux-3.17.7/arch/m68k/Kconfig.cpu +--- linux-3.17.7.orig/arch/m68k/Kconfig.cpu 2014-12-16 11:37:26.000000000 -0600 ++++ linux-3.17.7/arch/m68k/Kconfig.cpu 2014-12-27 14:12:19.291459730 -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. + |