diff options
Diffstat (limited to 'arch/arm/mach-at91rm9200/irq.c')
-rw-r--r-- | arch/arm/mach-at91rm9200/irq.c | 70 |
1 files changed, 14 insertions, 56 deletions
diff --git a/arch/arm/mach-at91rm9200/irq.c b/arch/arm/mach-at91rm9200/irq.c index dcd560dbcfb7..9b0911320417 100644 --- a/arch/arm/mach-at91rm9200/irq.c +++ b/arch/arm/mach-at91rm9200/irq.c | |||
@@ -36,58 +36,20 @@ | |||
36 | 36 | ||
37 | #include "generic.h" | 37 | #include "generic.h" |
38 | 38 | ||
39 | /* | ||
40 | * The default interrupt priority levels (0 = lowest, 7 = highest). | ||
41 | */ | ||
42 | static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = { | ||
43 | 7, /* Advanced Interrupt Controller */ | ||
44 | 7, /* System Peripheral */ | ||
45 | 0, /* Parallel IO Controller A */ | ||
46 | 0, /* Parallel IO Controller B */ | ||
47 | 0, /* Parallel IO Controller C */ | ||
48 | 0, /* Parallel IO Controller D */ | ||
49 | 6, /* USART 0 */ | ||
50 | 6, /* USART 1 */ | ||
51 | 6, /* USART 2 */ | ||
52 | 6, /* USART 3 */ | ||
53 | 0, /* Multimedia Card Interface */ | ||
54 | 4, /* USB Device Port */ | ||
55 | 0, /* Two-Wire Interface */ | ||
56 | 6, /* Serial Peripheral Interface */ | ||
57 | 5, /* Serial Synchronous Controller */ | ||
58 | 5, /* Serial Synchronous Controller */ | ||
59 | 5, /* Serial Synchronous Controller */ | ||
60 | 0, /* Timer Counter 0 */ | ||
61 | 0, /* Timer Counter 1 */ | ||
62 | 0, /* Timer Counter 2 */ | ||
63 | 0, /* Timer Counter 3 */ | ||
64 | 0, /* Timer Counter 4 */ | ||
65 | 0, /* Timer Counter 5 */ | ||
66 | 3, /* USB Host port */ | ||
67 | 3, /* Ethernet MAC */ | ||
68 | 0, /* Advanced Interrupt Controller */ | ||
69 | 0, /* Advanced Interrupt Controller */ | ||
70 | 0, /* Advanced Interrupt Controller */ | ||
71 | 0, /* Advanced Interrupt Controller */ | ||
72 | 0, /* Advanced Interrupt Controller */ | ||
73 | 0, /* Advanced Interrupt Controller */ | ||
74 | 0 /* Advanced Interrupt Controller */ | ||
75 | }; | ||
76 | 39 | ||
77 | 40 | static void at91_aic_mask_irq(unsigned int irq) | |
78 | static void at91rm9200_mask_irq(unsigned int irq) | ||
79 | { | 41 | { |
80 | /* Disable interrupt on AIC */ | 42 | /* Disable interrupt on AIC */ |
81 | at91_sys_write(AT91_AIC_IDCR, 1 << irq); | 43 | at91_sys_write(AT91_AIC_IDCR, 1 << irq); |
82 | } | 44 | } |
83 | 45 | ||
84 | static void at91rm9200_unmask_irq(unsigned int irq) | 46 | static void at91_aic_unmask_irq(unsigned int irq) |
85 | { | 47 | { |
86 | /* Enable interrupt on AIC */ | 48 | /* Enable interrupt on AIC */ |
87 | at91_sys_write(AT91_AIC_IECR, 1 << irq); | 49 | at91_sys_write(AT91_AIC_IECR, 1 << irq); |
88 | } | 50 | } |
89 | 51 | ||
90 | static int at91rm9200_irq_type(unsigned irq, unsigned type) | 52 | static int at91_aic_set_type(unsigned irq, unsigned type) |
91 | { | 53 | { |
92 | unsigned int smr, srctype; | 54 | unsigned int smr, srctype; |
93 | 55 | ||
@@ -122,7 +84,7 @@ static int at91rm9200_irq_type(unsigned irq, unsigned type) | |||
122 | static u32 wakeups; | 84 | static u32 wakeups; |
123 | static u32 backups; | 85 | static u32 backups; |
124 | 86 | ||
125 | static int at91rm9200_irq_set_wake(unsigned irq, unsigned value) | 87 | static int at91_aic_set_wake(unsigned irq, unsigned value) |
126 | { | 88 | { |
127 | if (unlikely(irq >= 32)) | 89 | if (unlikely(irq >= 32)) |
128 | return -EINVAL; | 90 | return -EINVAL; |
@@ -149,28 +111,24 @@ void at91_irq_resume(void) | |||
149 | } | 111 | } |
150 | 112 | ||
151 | #else | 113 | #else |
152 | #define at91rm9200_irq_set_wake NULL | 114 | #define at91_aic_set_wake NULL |
153 | #endif | 115 | #endif |
154 | 116 | ||
155 | static struct irqchip at91rm9200_irq_chip = { | 117 | static struct irqchip at91_aic_chip = { |
156 | .ack = at91rm9200_mask_irq, | 118 | .ack = at91_aic_mask_irq, |
157 | .mask = at91rm9200_mask_irq, | 119 | .mask = at91_aic_mask_irq, |
158 | .unmask = at91rm9200_unmask_irq, | 120 | .unmask = at91_aic_unmask_irq, |
159 | .set_type = at91rm9200_irq_type, | 121 | .set_type = at91_aic_set_type, |
160 | .set_wake = at91rm9200_irq_set_wake, | 122 | .set_wake = at91_aic_set_wake, |
161 | }; | 123 | }; |
162 | 124 | ||
163 | /* | 125 | /* |
164 | * Initialize the AIC interrupt controller. | 126 | * Initialize the AIC interrupt controller. |
165 | */ | 127 | */ |
166 | void __init at91rm9200_init_irq(unsigned int priority[NR_AIC_IRQS]) | 128 | void __init at91_aic_init(unsigned int priority[NR_AIC_IRQS]) |
167 | { | 129 | { |
168 | unsigned int i; | 130 | unsigned int i; |
169 | 131 | ||
170 | /* No priority list specified for this board -> use defaults */ | ||
171 | if (priority == NULL) | ||
172 | priority = at91rm9200_default_irq_priority; | ||
173 | |||
174 | /* | 132 | /* |
175 | * The IVR is used by macro get_irqnr_and_base to read and verify. | 133 | * The IVR is used by macro get_irqnr_and_base to read and verify. |
176 | * The irq number is NR_AIC_IRQS when a spurious interrupt has occurred. | 134 | * The irq number is NR_AIC_IRQS when a spurious interrupt has occurred. |
@@ -178,10 +136,10 @@ void __init at91rm9200_init_irq(unsigned int priority[NR_AIC_IRQS]) | |||
178 | for (i = 0; i < NR_AIC_IRQS; i++) { | 136 | for (i = 0; i < NR_AIC_IRQS; i++) { |
179 | /* Put irq number in Source Vector Register: */ | 137 | /* Put irq number in Source Vector Register: */ |
180 | at91_sys_write(AT91_AIC_SVR(i), i); | 138 | at91_sys_write(AT91_AIC_SVR(i), i); |
181 | /* Store the Source Mode Register as defined in table above */ | 139 | /* Active Low interrupt, with the specified priority */ |
182 | at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]); | 140 | at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]); |
183 | 141 | ||
184 | set_irq_chip(i, &at91rm9200_irq_chip); | 142 | set_irq_chip(i, &at91_aic_chip); |
185 | set_irq_handler(i, do_level_IRQ); | 143 | set_irq_handler(i, do_level_IRQ); |
186 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); | 144 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); |
187 | 145 | ||