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| author | Greg Ungerer <gerg@linux-m68k.org> | 2016-08-25 16:12:22 +0300 |
|---|---|---|
| committer | Greg Ungerer <gerg@linux-m68k.org> | 2016-09-26 05:02:58 +0300 |
| commit | cbd5b982f6a1540ebb0144774d64381e7b2d39fd (patch) | |
| tree | 75d26823fb8bfd1d4120b4b83adcfd7c3818ef0e /arch/m68k | |
| parent | 81d33350bab8b6889ac0f9c98bce58128be1c72d (diff) | |
| download | linux-cbd5b982f6a1540ebb0144774d64381e7b2d39fd.tar.xz | |
m68k: report correct FPU type on ColdFire MMU platforms
Not all ColdFire SoC parts that have an MMU also have an FPU - so set
an FPU type (via m68k_fputype) appropriate for the configured platform.
With this set correctly /proc/cpuinfo will report FPU "none" on devices
that don't have one. And kernel code paths that initialize FPU hardware
will now only execute if an FPU is actually present.
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/coldfire/head.S | 4 | ||||
| -rw-r--r-- | arch/m68k/include/asm/m5441xsim.h | 1 | ||||
| -rw-r--r-- | arch/m68k/include/asm/m54xxsim.h | 1 |
3 files changed, 4 insertions, 2 deletions
diff --git a/arch/m68k/coldfire/head.S b/arch/m68k/coldfire/head.S index 4ba5d5628067..bdb472c48401 100644 --- a/arch/m68k/coldfire/head.S +++ b/arch/m68k/coldfire/head.S @@ -280,8 +280,8 @@ _clear_bss: movel %d0,m68k_cputype /* Mark us as a ColdFire */ movel #MMU_COLDFIRE,%d0 movel %d0,m68k_mmutype - movel #FPU_COLDFIRE,%d0 - movel %d0,m68k_fputype + movel #FPUTYPE,%d0 + movel %d0,m68k_fputype /* Mark FPU type */ movel #MACHINE,%d0 movel %d0,m68k_machtype /* Mark machine type */ lea init_task,%a2 /* Set "current" init task */ diff --git a/arch/m68k/include/asm/m5441xsim.h b/arch/m68k/include/asm/m5441xsim.h index 60768b5973db..4279c0df0844 100644 --- a/arch/m68k/include/asm/m5441xsim.h +++ b/arch/m68k/include/asm/m5441xsim.h @@ -11,6 +11,7 @@ #define CPU_INSTR_PER_JIFFY 2 #define MCF_BUSCLK (MCF_CLK / 2) #define MACHINE MACH_M5441X +#define FPUTYPE 0 #include <asm/m54xxacr.h> diff --git a/arch/m68k/include/asm/m54xxsim.h b/arch/m68k/include/asm/m54xxsim.h index cde03902da24..7dd6cc4bcd72 100644 --- a/arch/m68k/include/asm/m54xxsim.h +++ b/arch/m68k/include/asm/m54xxsim.h @@ -9,6 +9,7 @@ #define CPU_INSTR_PER_JIFFY 2 #define MCF_BUSCLK (MCF_CLK / 2) #define MACHINE MACH_M54XX +#define FPUTYPE FPU_COLDFIRE #include <asm/m54xxacr.h> |