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authorDavid Woodhouse <dwmw2@infradead.org>2006-05-03 13:30:35 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2006-05-03 13:30:35 +0100
commitedc4ff7c08e9885c40e60c4fb39fa42cc91a0602 (patch)
treef375d28043dd4457428a841167dc93d760ba9a46 /arch/mips/ite-boards/generic
parentcbb9a56177b16294ed347ba7fcb1c66c8adb5dc4 (diff)
parente17df688f7064dae1417ce425dd1e4b71d24d63b (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/mips/ite-boards/generic')
-rw-r--r--arch/mips/ite-boards/generic/Makefile2
-rw-r--r--arch/mips/ite-boards/generic/int-handler.S63
-rw-r--r--arch/mips/ite-boards/generic/irq.c18
-rw-r--r--arch/mips/ite-boards/generic/time.c1
4 files changed, 14 insertions, 70 deletions
diff --git a/arch/mips/ite-boards/generic/Makefile b/arch/mips/ite-boards/generic/Makefile
index 0e7853f4398..63431538d0e 100644
--- a/arch/mips/ite-boards/generic/Makefile
+++ b/arch/mips/ite-boards/generic/Makefile
@@ -6,7 +6,7 @@
# Makefile for the ITE 8172 (qed-4n-s01b) board, generic files.
#
-obj-y += it8172_setup.o irq.o int-handler.o pmon_prom.o \
+obj-y += it8172_setup.o irq.o pmon_prom.o \
time.o lpc.o puts.o reset.o
obj-$(CONFIG_IT8172_CIR)+= it8172_cir.o
diff --git a/arch/mips/ite-boards/generic/int-handler.S b/arch/mips/ite-boards/generic/int-handler.S
deleted file mode 100644
index d190d8add9c..00000000000
--- a/arch/mips/ite-boards/generic/int-handler.S
+++ /dev/null
@@ -1,63 +0,0 @@
-#include <asm/asm.h>
-#include <asm/mipsregs.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-
- .text
- .set macro
- .set noat
- .align 5
-
-NESTED(it8172_IRQ, PT_SIZE, sp)
- SAVE_ALL
- CLI # Important: mark KERNEL mode !
-
- /* We're working with 'reorder' set at this point. */
- /*
- * Get pending interrupts
- */
-
- mfc0 t0,CP0_CAUSE # get pending interrupts
- mfc0 t1,CP0_STATUS # get enabled interrupts
- and t0,t1 # isolate allowed ones
-
- andi t0,0xff00 # isolate pending bits
- beqz t0, 3f # spurious interrupt
-
- andi a0, t0, CAUSEF_IP7
- beq a0, zero, 1f
-
- li a0, 127 # MIPS_CPU_TIMER_IRQ = (NR_IRQS-1)
- move a1, sp
- jal ll_timer_interrupt
- j ret_from_irq
- nop
-
-1:
- andi a0, t0, CAUSEF_IP2 # the only int we expect at this time
- beq a0, zero, 3f
- move a0,sp
- jal it8172_hw0_irqdispatch
-
- mfc0 t0,CP0_STATUS # disable interrupts
- ori t0,1
- xori t0,1
- mtc0 t0,CP0_STATUS
- nop
- nop
- nop
-
- la a1, ret_from_irq
- jr a1
- nop
-
-3:
- move a0, sp
- jal mips_spurious_interrupt
- nop
- la a1, ret_from_irq
- jr a1
- nop
-
-END(it8172_IRQ)
-
diff --git a/arch/mips/ite-boards/generic/irq.c b/arch/mips/ite-boards/generic/irq.c
index e67f9612949..77be7216bdd 100644
--- a/arch/mips/ite-boards/generic/irq.c
+++ b/arch/mips/ite-boards/generic/irq.c
@@ -62,12 +62,8 @@
#define ALLINTS_NOTIMER (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4)
-void disable_it8172_irq(unsigned int irq_nr);
-void enable_it8172_irq(unsigned int irq_nr);
-
extern void set_debug_traps(void);
extern void mips_timer_interrupt(int irq, struct pt_regs *regs);
-extern asmlinkage void it8172_IRQ(void);
struct it8172_intc_regs volatile *it8172_hw0_icregs =
(struct it8172_intc_regs volatile *)(KSEG1ADDR(IT8172_PCI_IO_BASE + IT_INTC_BASE));
@@ -181,8 +177,6 @@ void __init arch_init_irq(void)
int i;
unsigned long flags;
- set_except_vector(0, it8172_IRQ);
-
/* mask all interrupts */
it8172_hw0_icregs->lb_mask = 0xffff;
it8172_hw0_icregs->lpc_mask = 0xffff;
@@ -282,6 +276,18 @@ void it8172_hw0_irqdispatch(struct pt_regs *regs)
do_IRQ(irq, regs);
}
+asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+{
+ unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
+
+ if (!pending)
+ mips_spurious_interrupt(regs);
+ else if (pending & CAUSEF_IP7)
+ ll_timer_interrupt(127, regs);
+ else if (pending & CAUSEF_IP2)
+ it8172_hw0_irqdispatch(regs);
+}
+
void show_pending_irqs(void)
{
fputs("intstatus: ");
diff --git a/arch/mips/ite-boards/generic/time.c b/arch/mips/ite-boards/generic/time.c
index b79817bb6cc..dee497a9180 100644
--- a/arch/mips/ite-boards/generic/time.c
+++ b/arch/mips/ite-boards/generic/time.c
@@ -29,6 +29,7 @@
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/spinlock.h>
+#include <linux/mc146818rtc.h>
#include <asm/time.h>
#include <asm/mipsregs.h>