The range of MIPS_CPU IRQ and the range of LASAT IRQ overlap.
This patch has fixed it.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@xxxxxxxxxxxxxx>
diff -pruN -X mips/Documentation/dontdiff mips-orig/arch/mips/lasat/interrupt.c mips/arch/mips/lasat/interrupt.c
--- mips-orig/arch/mips/lasat/interrupt.c 2007-11-09 07:54:54.572826750 +0900
+++ mips/arch/mips/lasat/interrupt.c 2007-11-09 08:15:06.752835750 +0900
@@ -19,17 +19,14 @@
* Lasat boards.
*/
#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
+#include <linux/irq.h>
#include <asm/bootinfo.h>
#include <asm/irq_cpu.h>
#include <asm/lasat/lasatint.h>
-#include <asm/time.h>
-#include <asm/gdb-stub.h>
+
+#include <irq.h>
static volatile int *lasat_int_status;
static volatile int *lasat_int_mask;
@@ -97,12 +94,18 @@ asmlinkage void plat_irq_dispatch(void)
/* if int_status == 0, then the interrupt has already been cleared */
if (int_status) {
- irq = LASATINT_BASE + ls1bit32(int_status);
+ irq = LASAT_IRQ_BASE + ls1bit32(int_status);
do_IRQ(irq);
}
}
+static struct irqaction cascade = {
+ .handler = no_action,
+ .mask = CPU_MASK_NONE,
+ .name = "cascade",
+};
+
void __init arch_init_irq(void)
{
int i;
@@ -127,6 +130,9 @@ void __init arch_init_irq(void)
}
mips_cpu_irq_init();
- for (i = LASATINT_BASE; i <= LASATINT_END; i++)
+
+ for (i = LASAT_IRQ_BASE; i <= LASAT_IRQ_END; i++)
set_irq_chip_and_handler(i, &lasat_irq_type, handle_level_irq);
+
+ setup_irq(LASAT_CASCADE_IRQ, &cascade);
}
diff -pruN -X mips/Documentation/dontdiff mips-orig/arch/mips/pci/pci-lasat.c mips/arch/mips/pci/pci-lasat.c
--- mips-orig/arch/mips/pci/pci-lasat.c 2007-11-09 07:54:55.596890750 +0900
+++ mips/arch/mips/pci/pci-lasat.c 2007-11-09 08:33:30.421810750 +0900
@@ -5,12 +5,14 @@
*
* Copyright (C) 2000, 2001, 04 Keith M Wesolowski
*/
-#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/types.h>
+
#include <asm/bootinfo.h>
-#include <asm/lasat/lasatint.h>
+
+#include <irq.h>
extern struct pci_ops nile4_pci_ops;
extern struct pci_ops gt64xxx_pci0_ops;
@@ -55,15 +57,15 @@ static int __init lasat_pci_setup(void)
arch_initcall(lasat_pci_setup);
-#define LASATINT_ETH1 (LASATINT_BASE + 0)
-#define LASATINT_ETH0 (LASATINT_BASE + 1)
-#define LASATINT_HDC (LASATINT_BASE + 2)
-#define LASATINT_COMP (LASATINT_BASE + 3)
-#define LASATINT_HDLC (LASATINT_BASE + 4)
-#define LASATINT_PCIA (LASATINT_BASE + 5)
-#define LASATINT_PCIB (LASATINT_BASE + 6)
-#define LASATINT_PCIC (LASATINT_BASE + 7)
-#define LASATINT_PCID (LASATINT_BASE + 8)
+#define LASAT_IRQ_ETH1 (LASAT_IRQ_BASE + 0)
+#define LASAT_IRQ_ETH0 (LASAT_IRQ_BASE + 1)
+#define LASAT_IRQ_HDC (LASAT_IRQ_BASE + 2)
+#define LASAT_IRQ_COMP (LASAT_IRQ_BASE + 3)
+#define LASAT_IRQ_HDLC (LASAT_IRQ_BASE + 4)
+#define LASAT_IRQ_PCIA (LASAT_IRQ_BASE + 5)
+#define LASAT_IRQ_PCIB (LASAT_IRQ_BASE + 6)
+#define LASAT_IRQ_PCIC (LASAT_IRQ_BASE + 7)
+#define LASAT_IRQ_PCID (LASAT_IRQ_BASE + 8)
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
@@ -71,13 +73,13 @@ int __init pcibios_map_irq(const struct
case 1:
case 2:
case 3:
- return LASATINT_PCIA + (((slot-1) + (pin-1)) % 4);
+ return LASAT_IRQ_PCIA + (((slot-1) + (pin-1)) % 4);
case 4:
- return LASATINT_ETH1; /* Ethernet 1 (LAN 2) */
+ return LASAT_IRQ_ETH1; /* Ethernet 1 (LAN 2) */
case 5:
- return LASATINT_ETH0; /* Ethernet 0 (LAN 1) */
+ return LASAT_IRQ_ETH0; /* Ethernet 0 (LAN 1) */
case 6:
- return LASATINT_HDC; /* IDE controller */
+ return LASAT_IRQ_HDC; /* IDE controller */
default:
return 0xff; /* Illegal */
}
diff -pruN -X mips/Documentation/dontdiff mips-orig/include/asm-mips/lasat/lasatint.h mips/include/asm-mips/lasat/lasatint.h
--- mips-orig/include/asm-mips/lasat/lasatint.h 2007-11-09 07:57:42.283308000 +0900
+++ mips/include/asm-mips/lasat/lasatint.h 2007-11-09 08:04:47.862157500 +0900
@@ -1,11 +1,6 @@
#ifndef __ASM_LASAT_LASATINT_H
#define __ASM_LASAT_LASATINT_H
-#include <linux/irq.h>
-
-#define LASATINT_BASE MIPS_CPU_IRQ_BASE
-#define LASATINT_END (LASATINT_BASE + 16)
-
/* lasat 100 */
#define LASAT_INT_STATUS_REG_100 (KSEG1ADDR(0x1c880000))
#define LASAT_INT_MASK_REG_100 (KSEG1ADDR(0x1c890000))
diff -pruN -X mips/Documentation/dontdiff mips-orig/include/asm-mips/mach-lasat/irq.h mips/include/asm-mips/mach-lasat/irq.h
--- mips-orig/include/asm-mips/mach-lasat/irq.h 1970-01-01 09:00:00.000000000 +0900
+++ mips/include/asm-mips/mach-lasat/irq.h 2007-11-09 08:13:55.012352250 +0900
@@ -0,0 +1,13 @@
+#ifndef _ASM_MACH_LASAT_IRQ_H
+#define _ASM_MACH_LASAT_IRQ_H
+
+#define LASAT_CASCADE_IRQ (MIPS_CPU_IRQ_BASE + 0)
+
+#define LASAT_IRQ_BASE 8
+#define LASAT_IRQ_END 23
+
+#define NR_IRQS 24
+
+#include_next <irq.h>
+
+#endif /* _ASM_MACH_LASAT_IRQ_H */
