[MIPS] MT: Reenable EIC support and add support for SOCit SC.

Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

5 files changed, 27 insertions, 17 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 16ecea3c0813..b684385c4e65 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1557,6 +1557,7 @@ config MIPS_MT_SMP
         bool "Use 1 TC on each available VPE for SMP"
         depends on SYS_SUPPORTS_MULTITHREADING
         select CPU_MIPSR2_IRQ_VI
+        select CPU_MIPSR2_IRQ_EI
         select CPU_MIPSR2_SRS
         select MIPS_MT
         select NR_CPUS_DEFAULT_2
@@ -1572,6 +1573,7 @@ config MIPS_MT_SMTC
         #depends on CPU_MIPS64_R2               # once there is hardware ...
         depends on SYS_SUPPORTS_MULTITHREADING
         select CPU_MIPSR2_IRQ_VI
+        select CPU_MIPSR2_IRQ_EI
         select CPU_MIPSR2_SRS
         select MIPS_MT
         select NR_CPUS_DEFAULT_8
@@ -1584,6 +1586,8 @@ config MIPS_MT_SMTC
 config MIPS_VPE_LOADER
         bool "VPE loader support."
         depends on SYS_SUPPORTS_MULTITHREADING
+        select CPU_MIPSR2_IRQ_VI
+        select CPU_MIPSR2_IRQ_EI
         select MIPS_MT
         help
           Includes a loader for loading an elf relocatable object
diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c
index 2967537221e2..410868b5ea5f 100644
--- a/arch/mips/kernel/irq-msc01.c
+++ b/arch/mips/kernel/irq-msc01.c
@@ -132,11 +132,11 @@ struct irq_chip msc_edgeirq_type = {
 };
 
 
-void __init init_msc_irqs(unsigned int base, msc_irqmap_t *imp, int nirq)
+void __init init_msc_irqs(unsigned long icubase, unsigned int irqbase, msc_irqmap_t *imp, int nirq)
 {
         extern void (*board_bind_eic_interrupt)(unsigned int irq, unsigned int regset);
 
-        _icctrl_msc = (unsigned long) ioremap (MIPS_MSC01_IC_REG_BASE, 0x40000);
+        _icctrl_msc = (unsigned long) ioremap (icubase, 0x40000);
 
         /* Reset interrupt controller - initialises all registers to 0 */
         MSCIC_WRITE(MSC01_IC_RST, MSC01_IC_RST_RST_BIT);
@@ -148,14 +148,14 @@ void __init init_msc_irqs(unsigned int base, msc_irqmap_t *imp, int nirq)
 
                 switch (imp->im_type) {
                 case MSC01_IRQ_EDGE:
-                        set_irq_chip(base+n, &msc_edgeirq_type);
+                        set_irq_chip(irqbase+n, &msc_edgeirq_type);
                         if (cpu_has_veic)
                                 MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT);
                         else
                                 MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT | imp->im_lvl);
                         break;
                 case MSC01_IRQ_LEVEL:
-                        set_irq_chip(base+n, &msc_levelirq_type);
+                        set_irq_chip(irqbase+n, &msc_levelirq_type);
                         if (cpu_has_veic)
                                 MSCIC_WRITE(MSC01_IC_SUP+n*8, 0);
                         else
@@ -163,7 +163,7 @@ void __init init_msc_irqs(unsigned int base, msc_irqmap_t *imp, int nirq)
                 }
         }
 
-        irq_base = base;
+        irq_base = irqbase;
 
         MSCIC_WRITE(MSC01_IC_GENA, MSC01_IC_GENA_GENA_BIT);     /* Enable interrupt generation */
 
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 83d76025d61d..1cd830e3d933 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -311,16 +311,21 @@ void __init arch_init_irq(void)
         if (!cpu_has_veic)
                 mips_cpu_irq_init();
 
-        switch(mips_revision_corid) {
-        case MIPS_REVISION_CORID_CORE_MSC:
-        case MIPS_REVISION_CORID_CORE_FPGA2:
-        case MIPS_REVISION_CORID_CORE_FPGA3:
-        case MIPS_REVISION_CORID_CORE_24K:
-        case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+        switch(mips_revision_sconid) {
+        case MIPS_REVISION_SCON_SOCIT:
+        case MIPS_REVISION_SCON_ROCIT:
+                if (cpu_has_veic)
+                        init_msc_irqs (MIPS_MSC01_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
+                else
+                        init_msc_irqs (MIPS_MSC01_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs);
+                break;
+
+        case MIPS_REVISION_SCON_SOCITSC:
+        case MIPS_REVISION_SCON_SOCITSCP:
                 if (cpu_has_veic)
-                        init_msc_irqs (MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
+                        init_msc_irqs (MIPS_SOCITSC_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
                 else
-                        init_msc_irqs (MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs);
+                        init_msc_irqs (MIPS_SOCITSC_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs);
         }
 
         if (cpu_has_veic) {
diff --git a/include/asm-mips/mips-boards/malta.h b/include/asm-mips/mips-boards/malta.h
index b0ba3c5a921e..eec91001bb65 100644
--- a/include/asm-mips/mips-boards/malta.h
+++ b/include/asm-mips/mips-boards/malta.h
@@ -25,6 +25,10 @@
 #include <asm/mips-boards/msc01_pci.h>
 #include <asm/gt64120.h>
 
+/* Mips interrupt controller found in SOCit variations */
+#define MIPS_MSC01_IC_REG_BASE          0x1bc40000
+#define MIPS_SOCITSC_IC_REG_BASE        0x1ffa0000
+
 /*
  * Malta I/O ports base address for the Galileo GT64120 and Algorithmics
  * Bonito system controllers.
diff --git a/include/asm-mips/msc01_ic.h b/include/asm-mips/msc01_ic.h
index aa7ad9a71762..7989b9ffc1d2 100644
--- a/include/asm-mips/msc01_ic.h
+++ b/include/asm-mips/msc01_ic.h
@@ -94,10 +94,7 @@
 /*
  * MIPS System controller interrupt register base.
  *
- * FIXME - are these macros specific to Malta and co or to the MSC?  If the
- * latter, they should be moved elsewhere.
  */
-#define MIPS_MSC01_IC_REG_BASE  0x1bc40000
 
 /*****************************************************************************
  * Absolute register addresses
@@ -144,7 +141,7 @@ typedef struct msc_irqmap {
 #define MSC01_IRQ_LEVEL         0
 #define MSC01_IRQ_EDGE          1
 
-extern void __init init_msc_irqs(unsigned int base, msc_irqmap_t *imp, int nirq);
+extern void __init init_msc_irqs(unsigned long icubase, unsigned int base, msc_irqmap_t *imp, int nirq);
 extern void ll_msc_irq(void);
 
 #endif /* __ASM_MIPS_BOARDS_MSC01_IC_H */