diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2017-06-05 11:21:27 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-08-29 15:21:51 +0200 |
| commit | 3b2db173f01229410129f438d2f261c16a360eef (patch) | |
| tree | 080f38e2506a8ff4a32a71b16ceaa3e135a10a72 /arch/mips/kernel/cpu-probe.c | |
| parent | 114c370845111d4f2e31f9c6d4eedd9e4fc01f86 (diff) | |
MIPS: Remove unused R6000 support
The kernel contains a small amount of incomplete code aimed at
supporting old R6000 CPUs. This is:
- Unused, as no machine selects CONFIG_SYS_HAS_CPU_R6000.
- Broken, since there are glaring errors such as r6000_fpu.S moving
the FCSR register to t1, then ignoring it & instead saving t0 into
struct sigcontext...
- A maintenance headache, since it's code that nobody can test which
nevertheless imposes constraints on code which it shares with other
machines.
Remove this incomplete & broken R6000 CPU support in order to clean up
and in preparation for changes which will no longer need to consider
dragging the pretense of R6000 support along with them.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16236/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index d08afc7dc507..19ae0e279c86 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -1394,24 +1394,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) MIPS_CPU_DIVEC | MIPS_CPU_LLSC; c->tlbsize = 48; break; - case PRID_IMP_R6000: - c->cputype = CPU_R6000; - __cpu_name[cpu] = "R6000"; - set_isa(c, MIPS_CPU_ISA_II); - c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS; - c->options = MIPS_CPU_TLB | MIPS_CPU_FPU | - MIPS_CPU_LLSC; - c->tlbsize = 32; - break; - case PRID_IMP_R6000A: - c->cputype = CPU_R6000A; - __cpu_name[cpu] = "R6000A"; - set_isa(c, MIPS_CPU_ISA_II); - c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS; - c->options = MIPS_CPU_TLB | MIPS_CPU_FPU | - MIPS_CPU_LLSC; - c->tlbsize = 32; - break; case PRID_IMP_RM7000: c->cputype = CPU_RM7000; __cpu_name[cpu] = "RM7000"; |