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Diffstat (limited to 'arch/mips/loongson/fuloong-2e/irq.c')
-rw-r--r--arch/mips/loongson/fuloong-2e/irq.c52
1 files changed, 6 insertions, 46 deletions
diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c
index 9585f5aa7cce..7888cf69424a 100644
--- a/arch/mips/loongson/fuloong-2e/irq.c
+++ b/arch/mips/loongson/fuloong-2e/irq.c
@@ -7,39 +7,12 @@
7 * Free Software Foundation; either version 2 of the License, or (at your 7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. 8 * option) any later version.
9 */ 9 */
10#include <linux/delay.h>
11#include <linux/interrupt.h> 10#include <linux/interrupt.h>
12 11
13#include <asm/irq_cpu.h> 12#include <asm/irq_cpu.h>
14#include <asm/i8259.h> 13#include <asm/i8259.h>
15 14
16#include <loongson.h> 15#include <loongson.h>
17/*
18 * the first level int-handler will jump here if it is a bonito irq
19 */
20static void bonito_irqdispatch(void)
21{
22 u32 int_status;
23 int i;
24
25 /* workaround the IO dma problem: let cpu looping to allow DMA finish */
26 int_status = BONITO_INTISR;
27 if (int_status & (1 << 10)) {
28 while (int_status & (1 << 10)) {
29 udelay(1);
30 int_status = BONITO_INTISR;
31 }
32 }
33
34 /* Get pending sources, masked by current enables */
35 int_status = BONITO_INTISR & BONITO_INTEN;
36
37 if (int_status != 0) {
38 i = __ffs(int_status);
39 int_status &= ~(1 << i);
40 do_IRQ(BONITO_IRQ_BASE + i);
41 }
42}
43 16
44static void i8259_irqdispatch(void) 17static void i8259_irqdispatch(void)
45{ 18{
@@ -52,10 +25,8 @@ static void i8259_irqdispatch(void)
52 spurious_interrupt(); 25 spurious_interrupt();
53} 26}
54 27
55asmlinkage void plat_irq_dispatch(void) 28asmlinkage void mach_irq_dispatch(unsigned int pending)
56{ 29{
57 unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
58
59 if (pending & CAUSEF_IP7) 30 if (pending & CAUSEF_IP7)
60 do_IRQ(MIPS_CPU_IRQ_BASE + 7); 31 do_IRQ(MIPS_CPU_IRQ_BASE + 7);
61 else if (pending & CAUSEF_IP6) /* perf counter loverflow */ 32 else if (pending & CAUSEF_IP6) /* perf counter loverflow */
@@ -73,26 +44,15 @@ static struct irqaction cascade_irqaction = {
73 .name = "cascade", 44 .name = "cascade",
74}; 45};
75 46
76void __init arch_init_irq(void) 47void __init set_irq_trigger_mode(void)
77{ 48{
78 /*
79 * Clear all of the interrupts while we change the able around a bit.
80 * int-handler is not on bootstrap
81 */
82 clear_c0_status(ST0_IM | ST0_BEV);
83 local_irq_disable();
84
85 /* most bonito irq should be level triggered */ 49 /* most bonito irq should be level triggered */
86 BONITO_INTEDGE = BONITO_ICU_SYSTEMERR | BONITO_ICU_MASTERERR | 50 BONITO_INTEDGE = BONITO_ICU_SYSTEMERR | BONITO_ICU_MASTERERR |
87 BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES; 51 BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES;
88 BONITO_INTSTEER = 0; 52}
89
90 /*
91 * Mask out all interrupt by writing "1" to all bit position in
92 * the interrupt reset reg.
93 */
94 BONITO_INTENCLR = ~0;
95 53
54void __init mach_init_irq(void)
55{
96 /* init all controller 56 /* init all controller
97 * 0-15 ------> i8259 interrupt 57 * 0-15 ------> i8259 interrupt
98 * 16-23 ------> mips cpu interrupt 58 * 16-23 ------> mips cpu interrupt