[MIPS] Fix detection and handling of the 74K processor.

    
Nothing exciting; Linux just didn't know it yet so this is most adding
a value to a case statement.
    
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

6 files changed, 14 insertions, 1 deletions

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 58b3b14873cb..17184921b71d 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -121,6 +121,7 @@ static inline void check_wait(void)
         case CPU_24K:
         case CPU_25KF:
         case CPU_34K:
+        case CPU_74K:
         case CPU_PR4450:
                 cpu_wait = r4k_wait;
                 printk(" available.\n");
@@ -593,6 +594,9 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c)
         case PRID_IMP_34K:
                 c->cputype = CPU_34K;
                 break;
+        case PRID_IMP_74K:
+                c->cputype = CPU_74K;
+                break;
         }
 }
 
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 84ab959f924a..197952c44467 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -74,6 +74,7 @@ static const char *cpu_name[] = {
         [CPU_24K]       = "MIPS 24K",
         [CPU_25KF]      = "MIPS 25Kf",
         [CPU_34K]       = "MIPS 34K",
+        [CPU_74K]       = "MIPS 74K",
         [CPU_VR4111]    = "NEC VR4111",
         [CPU_VR4121]    = "NEC VR4121",
         [CPU_VR4122]    = "NEC VR4122",
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 053dbacac56b..4ff07e2efcb3 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -906,6 +906,7 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
         case CPU_4KEC:
         case CPU_24K:
         case CPU_34K:
+        case CPU_74K:
                 i_ehb(p);
                 tlbw(p);
                 break;
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index f2b4862aaae5..91b799d2cd88 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -80,6 +80,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
         case CPU_24K:
         case CPU_25KF:
         case CPU_34K:
+        case CPU_74K:
         case CPU_SB1:
         case CPU_SB1A:
                 lmodel = &op_model_mipsxx;
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 95d488ca0754..e7ce92391303 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -205,6 +205,10 @@ static int __init mipsxx_init(void)
         case CPU_34K:
                 op_model_mipsxx.cpu_type = "mips/34K";
                 break;
+
+        case CPU_74K:
+                op_model_mipsxx.cpu_type = "mips/74K";
+                break;
 #endif
 
         case CPU_5KC:
diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h
index 818b9a97e214..0117138149bc 100644
--- a/include/asm-mips/cpu.h
+++ b/include/asm-mips/cpu.h
@@ -87,6 +87,7 @@
 #define PRID_IMP_24K            0x9300
 #define PRID_IMP_34K            0x9500
 #define PRID_IMP_24KE           0x9600
+#define PRID_IMP_74K            0x9700
 
 /*
  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
@@ -196,7 +197,8 @@
 #define CPU_34K                 60
 #define CPU_PR4450              61
 #define CPU_SB1A                62
-#define CPU_LAST                62
+#define CPU_74K                 63
+#define CPU_LAST                63
 
 /*
  * ISA Level encodings