MIPS: Add support for interAptiv cores

The interAptiv is a power-efficient multi-core microprocessor
for use in system-on-chip (SoC) applications. The interAptiv combines
a multi-threading pipeline with a coherence manager to deliver improved
computational throughput and power efficiency. The interAptiv can
contain one to four MIPS32R3 interAptiv cores, system level
coherence manager with L2 cache, optional coherent I/O port,
and optional floating point unit.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6163/

9 files changed, 12 insertions, 1 deletions

diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index 00413508da99..02f591bd95ca 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -44,6 +44,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 	case CPU_74K:
 	case CPU_M14KC:
 	case CPU_M14KEC:
+	case CPU_INTERAPTIV:
 	case CPU_PROAPTIV:
 #endif
 
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 60adaad6d5d5..a0ec93054636 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -295,7 +295,7 @@ enum cpu_type_enum {
 	CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
 	CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
 	CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
-	CPU_M14KEC, CPU_PROAPTIV,
+	CPU_M14KEC, CPU_INTERAPTIV, CPU_PROAPTIV,
 
 	/*
 	 * MIPS64 class processors
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index cb2c94f13d01..3553243bf9d6 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -184,6 +184,7 @@ void __init check_wait(void)
 	case CPU_24K:
 	case CPU_34K:
 	case CPU_1004K:
+	case CPU_INTERAPTIV:
 	case CPU_PROAPTIV:
 		cpu_wait = r4k_wait;
 		if (read_c0_config7() & MIPS_CONF7_WII)
diff --git a/arch/mips/kernel/spram.c b/arch/mips/kernel/spram.c
index fb72b803b754..dfed8a41c696 100644
--- a/arch/mips/kernel/spram.c
+++ b/arch/mips/kernel/spram.c
@@ -206,6 +206,7 @@ void spram_config(void)
 	case CPU_34K:
 	case CPU_74K:
 	case CPU_1004K:
+	case CPU_INTERAPTIV:
 	case CPU_PROAPTIV:
 		config0 = read_c0_config();
 		/* FIXME: addresses are Malta specific */
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 39370e1d4362..e0b499694d18 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1337,6 +1337,7 @@ static inline void parity_protection_init(void)
 	case CPU_34K:
 	case CPU_74K:
 	case CPU_1004K:
+	case CPU_INTERAPTIV:
 	case CPU_PROAPTIV:
 		{
 #define ERRCTL_PE	0x80000000
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index eded642e1fef..13b549a67a1e 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1106,6 +1106,7 @@ static void probe_pcache(void)
 	case CPU_34K:
 	case CPU_74K:
 	case CPU_1004K:
+	case CPU_INTERAPTIV:
 	case CPU_PROAPTIV:
 		if (current_cpu_type() == CPU_74K)
 			alias_74k_erratum(c);
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 317c2497a75c..7a56aee5fce7 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -76,6 +76,7 @@ static inline int mips_sc_is_activated(struct cpuinfo_mips *c)
 	case CPU_34K:
 	case CPU_74K:
 	case CPU_1004K:
+	case CPU_INTERAPTIV:
 	case CPU_PROAPTIV:
 	case CPU_BMIPS5000:
 		if (config2 & (1 << 12))
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index efd2eb3d92e3..2a86e38872a7 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -86,6 +86,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 	case CPU_34K:
 	case CPU_1004K:
 	case CPU_74K:
+	case CPU_INTERAPTIV:
 	case CPU_PROAPTIV:
 	case CPU_LOONGSON1:
 	case CPU_SB1:
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 3e28aaa39bc9..4d94d75ec6f9 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -376,6 +376,10 @@ static int __init mipsxx_init(void)
 		op_model_mipsxx_ops.cpu_type = "mips/74K";
 		break;
 
+	case CPU_INTERAPTIV:
+		op_model_mipsxx_ops.cpu_type = "mips/interAptiv";
+		break;
+
 	case CPU_PROAPTIV:
 		op_model_mipsxx_ops.cpu_type = "mips/proAptiv";
 		break;