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MIPS: microMIPS: Disable LL/SC and fix linker bug.

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Partially revert commit e0c14a260d66ba35935600d6435940a566fe806b
and turn off LL/SC when building a pure microMIPS kernel. This is
a temporary fix until the cmpxchg assembly macro functions are
re-written to not use the HI/LO registers in address calculations.

Also add .insn in selected user access functions which would
otherwise produce ISA mode jump incompatibilities. This is also a
temporary fix.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
This commit is contained in:
Steven J. Hill
2013-03-25 13:22:59 -05:00
committed by Ralf Baechle
parent 01be057b33
commit 1658f914ff
2 changed files with 16 additions and 2 deletions
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4
arch/mips/include/asm/mach-sead3/cpu-feature-overrides.h
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@@ -28,7 +28,11 @@
/* #define cpu_has_prefetch ? */
#define cpu_has_mcheck 1
/* #define cpu_has_ejtag ? */
#ifdef CONFIG_CPU_MICROMIPS
#define cpu_has_llsc 0
#else
#define cpu_has_llsc 1
#endif
/* #define cpu_has_vtag_icache ? */
/* #define cpu_has_dc_aliases ? */
/* #define cpu_has_ic_fills_f_dc ? */