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/

diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index 0041350..02f591b 100644 (file)
--- 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 60adaad..a0ec930 100644 (file)
--- 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 cb2c94f..3553243 100644 (file)
--- 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 fb72b80..dfed8a4 100644 (file)
--- 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 39370e1..e0b4996 100644 (file)
--- 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 eded642..13b549a 100644 (file)
--- 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 317c249..7a56aee 100644 (file)
--- 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 efd2eb3..2a86e38 100644 (file)
--- 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 3e28aaa..4d94d75 100644 (file)
--- 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;