Blackfin arch: If we double fault, rather than hang forever, reset

[pandora-kernel.git] / arch / mips / tx4938 / toshiba_rbtx4938 / irq.c

diff --git a/arch/mips/tx4938/toshiba_rbtx4938/irq.c b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
index f001850..4d6a8dc 100644 (file)
--- a/arch/mips/tx4938/toshiba_rbtx4938/irq.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
@@ -67,24 +67,7 @@ IRQ  Device
 63 RBTX4938-IOC/07 SWINT
 */
 #include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
 #include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/timex.h>
-#include <asm/bootinfo.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/processor.h>
-#include <asm/reboot.h>
-#include <asm/time.h>
-#include <asm/wbflush.h>
-#include <linux/bootmem.h>
 #include <asm/tx4938/rbtx4938.h>
 
 static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq);
@@ -99,21 +82,16 @@ static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
        .unmask = toshiba_rbtx4938_irq_ioc_enable,
 };
 
-#define TOSHIBA_RBTX4938_IOC_INTR_ENAB 0xb7f02000
-#define TOSHIBA_RBTX4938_IOC_INTR_STAT 0xb7f0200a
-
 int
 toshiba_rbtx4938_irq_nested(int sw_irq)
 {
        u8 level3;
 
-       level3 = reg_rd08(TOSHIBA_RBTX4938_IOC_INTR_STAT) & 0xff;
-       if (level3) {
+       level3 = readb(rbtx4938_imstat_addr);
+       if (level3)
                /* must use fls so onboard ATA has priority */
                sw_irq = TOSHIBA_RBTX4938_IRQ_IOC_BEG + fls(level3) - 1;
-       }
 
-       wbflush();
        return sw_irq;
 }
 
@@ -144,25 +122,23 @@ toshiba_rbtx4938_irq_ioc_init(void)
 static void
 toshiba_rbtx4938_irq_ioc_enable(unsigned int irq)
 {
-       volatile unsigned char v;
+       unsigned char v;
 
-       v = TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
+       v = readb(rbtx4938_imask_addr);
        v |= (1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
-       TX4938_WR08(TOSHIBA_RBTX4938_IOC_INTR_ENAB, v);
+       writeb(v, rbtx4938_imask_addr);
        mmiowb();
-       TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
 }
 
 static void
 toshiba_rbtx4938_irq_ioc_disable(unsigned int irq)
 {
-       volatile unsigned char v;
+       unsigned char v;
 
-       v = TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
+       v = readb(rbtx4938_imask_addr);
        v &= ~(1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
-       TX4938_WR08(TOSHIBA_RBTX4938_IOC_INTR_ENAB, v);
+       writeb(v, rbtx4938_imask_addr);
        mmiowb();
-       TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
 }
 
 void __init arch_init_irq(void)
@@ -174,14 +150,12 @@ void __init arch_init_irq(void)
        /* all IRC interrupt mode are Low Active. */
 
        /* mask all IOC interrupts */
-       *rbtx4938_imask_ptr = 0;
+       writeb(0, rbtx4938_imask_addr);
 
        /* clear SoftInt interrupts */
-       *rbtx4938_softint_ptr = 0;
+       writeb(0, rbtx4938_softint_addr);
        tx4938_irq_init();
        toshiba_rbtx4938_irq_ioc_init();
        /* Onboard 10M Ether: High Active */
        set_irq_type(RBTX4938_IRQ_ETHER, IRQF_TRIGGER_HIGH);
-
-       wbflush();
 }