From 479a0e3e0245fa116412bc105ab1161636c220cb Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 16 Aug 2005 15:44:06 +0000
Subject: Support for CoreFPGA-3.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mips-boards/generic/init.c
index 58256ea..eab5a70 100644
--- a/arch/mips/mips-boards/generic/init.c
+++ b/arch/mips/mips-boards/generic/init.c
@@ -337,6 +337,7 @@ void __init prom_init(void)
 
 	case MIPS_REVISION_CORID_CORE_MSC:
 	case MIPS_REVISION_CORID_CORE_FPGA2:
+	case MIPS_REVISION_CORID_CORE_FPGA3:
 	case MIPS_REVISION_CORID_CORE_EMUL_MSC:
 		_pcictrl_msc = (unsigned long)ioremap(MIPS_MSC01_PCI_REG_BASE, 0x2000);
 
diff --git a/arch/mips/mips-boards/generic/pci.c b/arch/mips/mips-boards/generic/pci.c
index c8398c4..1f6f9df 100644
--- a/arch/mips/mips-boards/generic/pci.c
+++ b/arch/mips/mips-boards/generic/pci.c
@@ -197,6 +197,7 @@ void __init mips_pcibios_init(void)
 
 	case MIPS_REVISION_CORID_CORE_MSC:
 	case MIPS_REVISION_CORID_CORE_FPGA2:
+	case MIPS_REVISION_CORID_CORE_FPGA3:
 	case MIPS_REVISION_CORID_CORE_EMUL_MSC:
 		/* Set up resource ranges from the controller's registers.  */
 		MSC_READ(MSC01_PCI_SC2PMBASL, start);
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 6f99a44..d06dc5ad 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -57,6 +57,7 @@ static inline int mips_pcibios_iack(void)
 	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_EMUL_MSC:
 	        MSC_READ(MSC01_PCI_IACK, irq);
 		irq &= 0xff;
@@ -103,22 +104,10 @@ static inline int get_int(void)
 	irq = mips_pcibios_iack();
 
 	/*
-	 * IRQ7 is used to detect spurious interrupts.
-	 * The interrupt acknowledge cycle returns IRQ7, if no
-	 * interrupts is requested.
-	 * We can differentiate between this situation and a
-	 * "Normal" IRQ7 by reading the ISR.
+	 * The only way we can decide if an interrupt is spurious
+	 * is by checking the 8259 registers.  This needs a spinlock
+	 * on an SMP system,  so leave it up to the generic code...
 	 */
-	if (irq == 7)
-	{
-		outb(PIIX4_OCW3_SEL | PIIX4_OCW3_ISR,
-		     PIIX4_ICTLR1_OCW3);
-		if (!(inb(PIIX4_ICTLR1_OCW3) & (1 << 7))) {
-			irq = -1; /* Spurious interrupt */
-			printk("We got a spurious interrupt from PIIX4.\n");
-			atomic_inc(&irq_err_count);
-		}
-	}
 
 	spin_unlock_irqrestore(&mips_irq_lock, flags);
 
@@ -153,6 +142,7 @@ void corehi_irqdispatch(struct pt_regs *regs)
         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_EMUL_MSC:
                 ll_msc_irq(regs);
                 break;
@@ -233,6 +223,7 @@ void __init arch_init_irq(void)
         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_EMUL_MSC:
 		if (cpu_has_veic)
 			init_msc_irqs (MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs);
diff --git a/include/asm-mips/mips-boards/generic.h b/include/asm-mips/mips-boards/generic.h
index ed01124..25b6ffc 100644
--- a/include/asm-mips/mips-boards/generic.h
+++ b/include/asm-mips/mips-boards/generic.h
@@ -66,6 +66,7 @@
 #define MIPS_REVISION_CORID_CORE_EMUL      6
 #define MIPS_REVISION_CORID_CORE_FPGA2     7
 #define MIPS_REVISION_CORID_CORE_FPGAR2    8
+#define MIPS_REVISION_CORID_CORE_FPGA3     9
 
 /**** Artificial corid defines ****/
 /*
-- 
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