From: Ralf Baechle <ralf@linux-mips.org>
Date: Sun, 28 May 2006 23:02:12 +0000 (+0100)
Subject: [MIPS] SB1: Only pass1 FPUs are broken beyond recovery.
X-Git-Tag: firefly_0821_release~35551
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aa32374aaa2e516a9b0719477efae0782a62a79e;p=firefly-linux-kernel-4.4.55.git

[MIPS] SB1: Only pass1 FPUs are broken beyond recovery.

The wrong revision number in the check was forcing a fallback to FPU
emulation for all SB1 cores in 2.6.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index bef3e2dc7c52..8c2c359a05f4 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -655,7 +655,7 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
 	case PRID_IMP_SB1:
 		c->cputype = CPU_SB1;
 		/* FPU in pass1 is known to have issues. */
-		if ((c->processor_id & 0xff) < 0x20)
+		if ((c->processor_id & 0xff) < 0x02)
 			c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR);
 		break;
 	case PRID_IMP_SB1A: