mirror of https://gitee.com/openkylin/linux.git
[ARM] 3711/1: AT91 timer update
Patch from Andrew Victor The AIC interrupt controller is the same on the Atmel AT91RM9200, AT91SAM9261 and AT91SAM9260 processors. This patch removes any RM9200-specific naming from the IRQ driver, and moves the AT91RM9200's default IRQ priority table into at91rm9200.c. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor
Russell King
parent
5904a7f916
commit
ba854e1841
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@ -107,3 +107,48 @@ void __init at91rm9200_map_io(void)
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iotable_init(at91rm9200_io_desc, ARRAY_SIZE(at91rm9200_io_desc));
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}
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/*
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* The default interrupt priority levels (0 = lowest, 7 = highest).
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*/
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static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = {
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7, /* Advanced Interrupt Controller (FIQ) */
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7, /* System Peripherals */
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0, /* Parallel IO Controller A */
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0, /* Parallel IO Controller B */
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0, /* Parallel IO Controller C */
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0, /* Parallel IO Controller D */
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6, /* USART 0 */
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6, /* USART 1 */
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6, /* USART 2 */
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6, /* USART 3 */
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0, /* Multimedia Card Interface */
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4, /* USB Device Port */
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0, /* Two-Wire Interface */
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6, /* Serial Peripheral Interface */
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5, /* Serial Synchronous Controller 0 */
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5, /* Serial Synchronous Controller 1 */
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5, /* Serial Synchronous Controller 2 */
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0, /* Timer Counter 0 */
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0, /* Timer Counter 1 */
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0, /* Timer Counter 2 */
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0, /* Timer Counter 3 */
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0, /* Timer Counter 4 */
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0, /* Timer Counter 5 */
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3, /* USB Host port */
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3, /* Ethernet MAC */
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0, /* Advanced Interrupt Controller (IRQ0) */
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0, /* Advanced Interrupt Controller (IRQ1) */
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0, /* Advanced Interrupt Controller (IRQ2) */
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0, /* Advanced Interrupt Controller (IRQ3) */
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0, /* Advanced Interrupt Controller (IRQ4) */
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0, /* Advanced Interrupt Controller (IRQ5) */
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0 /* Advanced Interrupt Controller (IRQ6) */
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};
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void __init at91rm9200_init_irq(unsigned int priority[NR_AIC_IRQS])
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{
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if (!priority)
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priority = at91rm9200_default_irq_priority;
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at91_aic_init(priority);
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}
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@ -8,13 +8,19 @@
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* published by the Free Software Foundation.
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*/
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void at91_gpio_irq_setup(unsigned banks);
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/* Interrupts */
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extern void __init at91rm9200_init_irq(unsigned int priority[]);
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extern void __init at91_aic_init(unsigned int priority[]);
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extern void __init at91_gpio_irq_setup(unsigned banks);
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/* Timer */
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struct sys_timer;
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extern struct sys_timer at91rm9200_timer;
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/* Memory Map */
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extern void __init at91rm9200_map_io(void);
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/* Clocks */
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extern int __init at91_clock_init(unsigned long main_clock);
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struct device;
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extern void __init at91_clock_associate(const char *id, struct device *dev, const char *func);
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@ -36,58 +36,20 @@
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#include "generic.h"
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/*
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* The default interrupt priority levels (0 = lowest, 7 = highest).
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*/
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static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = {
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7, /* Advanced Interrupt Controller */
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7, /* System Peripheral */
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0, /* Parallel IO Controller A */
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0, /* Parallel IO Controller B */
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0, /* Parallel IO Controller C */
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0, /* Parallel IO Controller D */
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6, /* USART 0 */
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6, /* USART 1 */
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6, /* USART 2 */
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6, /* USART 3 */
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0, /* Multimedia Card Interface */
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4, /* USB Device Port */
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0, /* Two-Wire Interface */
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6, /* Serial Peripheral Interface */
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5, /* Serial Synchronous Controller */
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5, /* Serial Synchronous Controller */
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5, /* Serial Synchronous Controller */
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0, /* Timer Counter 0 */
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0, /* Timer Counter 1 */
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0, /* Timer Counter 2 */
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0, /* Timer Counter 3 */
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0, /* Timer Counter 4 */
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0, /* Timer Counter 5 */
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3, /* USB Host port */
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3, /* Ethernet MAC */
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0, /* Advanced Interrupt Controller */
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0, /* Advanced Interrupt Controller */
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0, /* Advanced Interrupt Controller */
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0, /* Advanced Interrupt Controller */
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0, /* Advanced Interrupt Controller */
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0, /* Advanced Interrupt Controller */
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0 /* Advanced Interrupt Controller */
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};
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static void at91rm9200_mask_irq(unsigned int irq)
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static void at91_aic_mask_irq(unsigned int irq)
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{
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/* Disable interrupt on AIC */
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at91_sys_write(AT91_AIC_IDCR, 1 << irq);
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}
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static void at91rm9200_unmask_irq(unsigned int irq)
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static void at91_aic_unmask_irq(unsigned int irq)
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{
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/* Enable interrupt on AIC */
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at91_sys_write(AT91_AIC_IECR, 1 << irq);
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}
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static int at91rm9200_irq_type(unsigned irq, unsigned type)
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static int at91_aic_set_type(unsigned irq, unsigned type)
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{
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unsigned int smr, srctype;
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@ -122,7 +84,7 @@ static int at91rm9200_irq_type(unsigned irq, unsigned type)
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static u32 wakeups;
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static u32 backups;
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static int at91rm9200_irq_set_wake(unsigned irq, unsigned value)
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static int at91_aic_set_wake(unsigned irq, unsigned value)
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{
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if (unlikely(irq >= 32))
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return -EINVAL;
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@ -149,28 +111,24 @@ void at91_irq_resume(void)
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}
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#else
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#define at91rm9200_irq_set_wake NULL
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#define at91_aic_set_wake NULL
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#endif
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static struct irqchip at91rm9200_irq_chip = {
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.ack = at91rm9200_mask_irq,
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.mask = at91rm9200_mask_irq,
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.unmask = at91rm9200_unmask_irq,
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.set_type = at91rm9200_irq_type,
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.set_wake = at91rm9200_irq_set_wake,
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static struct irqchip at91_aic_chip = {
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.ack = at91_aic_mask_irq,
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.mask = at91_aic_mask_irq,
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.unmask = at91_aic_unmask_irq,
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.set_type = at91_aic_set_type,
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.set_wake = at91_aic_set_wake,
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};
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/*
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* Initialize the AIC interrupt controller.
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*/
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void __init at91rm9200_init_irq(unsigned int priority[NR_AIC_IRQS])
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void __init at91_aic_init(unsigned int priority[NR_AIC_IRQS])
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{
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unsigned int i;
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/* No priority list specified for this board -> use defaults */
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if (priority == NULL)
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priority = at91rm9200_default_irq_priority;
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/*
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* The IVR is used by macro get_irqnr_and_base to read and verify.
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* The irq number is NR_AIC_IRQS when a spurious interrupt has occurred.
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@ -178,10 +136,10 @@ void __init at91rm9200_init_irq(unsigned int priority[NR_AIC_IRQS])
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for (i = 0; i < NR_AIC_IRQS; i++) {
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/* Put irq number in Source Vector Register: */
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at91_sys_write(AT91_AIC_SVR(i), i);
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/* Store the Source Mode Register as defined in table above */
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/* Active Low interrupt, with the specified priority */
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at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
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set_irq_chip(i, &at91rm9200_irq_chip);
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set_irq_chip(i, &at91_aic_chip);
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set_irq_handler(i, do_level_IRQ);
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set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
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@ -39,12 +39,4 @@
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*/
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#define NR_IRQS (NR_AIC_IRQS + (4 * 32))
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#ifndef __ASSEMBLY__
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/*
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* Initialize the IRQ controller.
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*/
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extern void at91rm9200_init_irq(unsigned int priority[]);
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#endif
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#endif
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