From: David Daney <ddaney@caviumnetworks.com>
Date: Thu, 7 Oct 2010 23:03:44 +0000 (-0700)
Subject: MIPS: Octeon: Handle Octeon II caches.
X-Git-Tag: firefly_0821_release~7613^2~3561^2~28
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f8bf7e688c226ba83b35a1547146e296e14b33c7;p=firefly-linux-kernel-4.4.55.git

MIPS: Octeon: Handle Octeon II caches.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Patchwork: http://patchwork.linux-mips.org/patch/1664/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c
index 0f9c488044d1..16c4d256b76f 100644
--- a/arch/mips/mm/c-octeon.c
+++ b/arch/mips/mm/c-octeon.c
@@ -181,10 +181,10 @@ static void __cpuinit probe_octeon(void)
 	unsigned int config1;
 	struct cpuinfo_mips *c = &current_cpu_data;
 
+	config1 = read_c0_config1();
 	switch (c->cputype) {
 	case CPU_CAVIUM_OCTEON:
 	case CPU_CAVIUM_OCTEON_PLUS:
-		config1 = read_c0_config1();
 		c->icache.linesz = 2 << ((config1 >> 19) & 7);
 		c->icache.sets = 64 << ((config1 >> 22) & 7);
 		c->icache.ways = 1 + ((config1 >> 16) & 7);
@@ -204,6 +204,20 @@ static void __cpuinit probe_octeon(void)
 		c->options |= MIPS_CPU_PREFETCH;
 		break;
 
+	case CPU_CAVIUM_OCTEON2:
+		c->icache.linesz = 2 << ((config1 >> 19) & 7);
+		c->icache.sets = 8;
+		c->icache.ways = 37;
+		c->icache.flags |= MIPS_CACHE_VTAG;
+		icache_size = c->icache.sets * c->icache.ways * c->icache.linesz;
+
+		c->dcache.linesz = 128;
+		c->dcache.ways = 32;
+		c->dcache.sets = 8;
+		dcache_size = c->dcache.sets * c->dcache.ways * c->dcache.linesz;
+		c->options |= MIPS_CPU_PREFETCH;
+		break;
+
 	default:
 		panic("Unsupported Cavium Networks CPU type\n");
 		break;