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 | ||
