diff options
| author |   Paul Cercueil <paul@crapouillou.net> | 2021-05-30 18:17:57 +0100 |
|---|---|---|
| committer |   Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2021-06-01 11:44:47 +0200 |
| commit | fc52f92a653215fbd6bc522ac5311857b335e589 (patch) | |
| tree | 60c9e5e953d9292bd4a8798eb9221267164f587b /arch/mips/kernel/cpu-probe.c | |
| parent | MIPS: boot: Support specifying UART port on Ingenic SoCs (diff) | |
| download | linux-dev-fc52f92a653215fbd6bc522ac5311857b335e589.tar.xz linux-dev-fc52f92a653215fbd6bc522ac5311857b335e589.zip | |
MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B)
Ingenic JZ4760 and JZ4760B do have a FPU, but the config registers don't
report it. Force the FPU detection in case the processor ID match the
JZ4760(B) one.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 0ef240adefb5..630fcb4cb30e 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -1840,6 +1840,11 @@ static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu) */ case PRID_COMP_INGENIC_D0: c->isa_level &= ~MIPS_CPU_ISA_M32R2; + + /* FPU is not properly detected on JZ4760(B). */ + if (c->processor_id == 0x2ed0024f) + c->options |= MIPS_CPU_FPU; + fallthrough; /* |