#ifndef AT91_AIC_H
#define AT91_AIC_H
-#define AT91_AIC_SMR(n) (AT91_AIC + ((n) * 4)) /* Source Mode Registers 0-31 */
+#ifndef __ASSEMBLY__
+extern void __iomem *at91_aic_base;
+
+#define at91_aic_read(field) \
+ __raw_readl(at91_aic_base + field)
+
+#define at91_aic_write(field, value) \
+ __raw_writel(value, at91_aic_base + field);
+#else
+.extern at91_aic_base
+#endif
+
+#define AT91_AIC_SMR(n) ((n) * 4) /* Source Mode Registers 0-31 */
#define AT91_AIC_PRIOR (7 << 0) /* Priority Level */
#define AT91_AIC_SRCTYPE (3 << 5) /* Interrupt Source Type */
#define AT91_AIC_SRCTYPE_LOW (0 << 5)
#define AT91_AIC_SRCTYPE_HIGH (2 << 5)
#define AT91_AIC_SRCTYPE_RISING (3 << 5)
-#define AT91_AIC_SVR(n) (AT91_AIC + 0x80 + ((n) * 4)) /* Source Vector Registers 0-31 */
-#define AT91_AIC_IVR (AT91_AIC + 0x100) /* Interrupt Vector Register */
-#define AT91_AIC_FVR (AT91_AIC + 0x104) /* Fast Interrupt Vector Register */
-#define AT91_AIC_ISR (AT91_AIC + 0x108) /* Interrupt Status Register */
+#define AT91_AIC_SVR(n) (0x80 + ((n) * 4)) /* Source Vector Registers 0-31 */
+#define AT91_AIC_IVR 0x100 /* Interrupt Vector Register */
+#define AT91_AIC_FVR 0x104 /* Fast Interrupt Vector Register */
+#define AT91_AIC_ISR 0x108 /* Interrupt Status Register */
#define AT91_AIC_IRQID (0x1f << 0) /* Current Interrupt Identifier */
-#define AT91_AIC_IPR (AT91_AIC + 0x10c) /* Interrupt Pending Register */
-#define AT91_AIC_IMR (AT91_AIC + 0x110) /* Interrupt Mask Register */
-#define AT91_AIC_CISR (AT91_AIC + 0x114) /* Core Interrupt Status Register */
+#define AT91_AIC_IPR 0x10c /* Interrupt Pending Register */
+#define AT91_AIC_IMR 0x110 /* Interrupt Mask Register */
+#define AT91_AIC_CISR 0x114 /* Core Interrupt Status Register */
#define AT91_AIC_NFIQ (1 << 0) /* nFIQ Status */
#define AT91_AIC_NIRQ (1 << 1) /* nIRQ Status */
-#define AT91_AIC_IECR (AT91_AIC + 0x120) /* Interrupt Enable Command Register */
-#define AT91_AIC_IDCR (AT91_AIC + 0x124) /* Interrupt Disable Command Register */
-#define AT91_AIC_ICCR (AT91_AIC + 0x128) /* Interrupt Clear Command Register */
-#define AT91_AIC_ISCR (AT91_AIC + 0x12c) /* Interrupt Set Command Register */
-#define AT91_AIC_EOICR (AT91_AIC + 0x130) /* End of Interrupt Command Register */
-#define AT91_AIC_SPU (AT91_AIC + 0x134) /* Spurious Interrupt Vector Register */
-#define AT91_AIC_DCR (AT91_AIC + 0x138) /* Debug Control Register */
+#define AT91_AIC_IECR 0x120 /* Interrupt Enable Command Register */
+#define AT91_AIC_IDCR 0x124 /* Interrupt Disable Command Register */
+#define AT91_AIC_ICCR 0x128 /* Interrupt Clear Command Register */
+#define AT91_AIC_ISCR 0x12c /* Interrupt Set Command Register */
+#define AT91_AIC_EOICR 0x130 /* End of Interrupt Command Register */
+#define AT91_AIC_SPU 0x134 /* Spurious Interrupt Vector Register */
+#define AT91_AIC_DCR 0x138 /* Debug Control Register */
#define AT91_AIC_DCR_PROT (1 << 0) /* Protection Mode */
#define AT91_AIC_DCR_GMSK (1 << 1) /* General Mask */
-#define AT91_AIC_FFER (AT91_AIC + 0x140) /* Fast Forcing Enable Register [SAM9 only] */
-#define AT91_AIC_FFDR (AT91_AIC + 0x144) /* Fast Forcing Disable Register [SAM9 only] */
-#define AT91_AIC_FFSR (AT91_AIC + 0x148) /* Fast Forcing Status Register [SAM9 only] */
+#define AT91_AIC_FFER 0x140 /* Fast Forcing Enable Register [SAM9 only] */
+#define AT91_AIC_FFDR 0x144 /* Fast Forcing Disable Register [SAM9 only] */
+#define AT91_AIC_FFSR 0x148 /* Fast Forcing Status Register [SAM9 only] */
#endif
#define AT91_BCRAMC (0xffffe400 - AT91_BASE_SYS)
#define AT91_DDRSDRC0 (0xffffe600 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffea00 - AT91_BASE_SYS)
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (cpu_is_at91cap9_revB() ? \
/*
* System Peripherals (offset from AT91_BASE_SYS)
*/
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS) /* Advanced Interrupt Controller */
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) /* Power Management Controller */
#define AT91_ST (0xfffffd00 - AT91_BASE_SYS) /* System Timer */
#define AT91_RTC (0xfffffe00 - AT91_BASE_SYS) /* Real-Time Clock */
*/
#define AT91_SDRAMC0 (0xffffea00 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffee00 - AT91_BASE_SYS)
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
*/
#define AT91_SDRAMC0 (0xffffea00 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffee00 - AT91_BASE_SYS)
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
#define AT91_SDRAMC0 (0xffffe200 - AT91_BASE_SYS)
#define AT91_SDRAMC1 (0xffffe800 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffec00 - AT91_BASE_SYS)
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
#define AT91_DDRSDRC1 (0xffffe400 - AT91_BASE_SYS)
#define AT91_DDRSDRC0 (0xffffe600 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffea00 - AT91_BASE_SYS)
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
*/
#define AT91_SDRAMC0 (0xffffea00 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffee00 - AT91_BASE_SYS)
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_SCKCR (0xfffffd50 - AT91_BASE_SYS)
#define AT91_PIOA (0xffff0000 - AT91_BASE_SYS) /* PIO Controller A */
#define AT91_PS (0xffff4000 - AT91_BASE_SYS) /* Power Save */
#define AT91_WD (0xffff8000 - AT91_BASE_SYS) /* Watchdog Timer */
-#define AT91_AIC (0xfffff000 - AT91_BASE_SYS) /* Advanced Interrupt Controller */
/*
* The AT91x40 series doesn't have a debug unit like the other AT91 parts.
.endm
.macro get_irqnr_preamble, base, tmp
- ldr \base, =(AT91_VA_BASE_SYS + AT91_AIC) @ base virtual address of AIC peripheral
+ ldr \base, =at91_aic_base @ base virtual address of AIC peripheral
+ ldr \base, [\base]
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- ldr \irqnr, [\base, #(AT91_AIC_IVR - AT91_AIC)] @ read IRQ vector register: de-asserts nIRQ to processor (and clears interrupt)
- ldr \irqstat, [\base, #(AT91_AIC_ISR - AT91_AIC)] @ read interrupt source number
- teq \irqstat, #0 @ ISR is 0 when no current interrupt, or spurious interrupt
- streq \tmp, [\base, #(AT91_AIC_EOICR - AT91_AIC)] @ not going to be handled further, then ACK it now.
+ ldr \irqnr, [\base, #AT91_AIC_IVR] @ read IRQ vector register: de-asserts nIRQ to processor (and clears interrupt)
+ ldr \irqstat, [\base, #AT91_AIC_ISR] @ read interrupt source number
+ teq \irqstat, #0 @ ISR is 0 when no current interrupt, or spurious interrupt
+ streq \tmp, [\base, #AT91_AIC_EOICR] @ not going to be handled further, then ACK it now.
.endm
#endif
/*
+ * On all at91 have the Advanced Interrupt Controller starts at address
+ * 0xfffff000
+ */
+#define AT91_AIC 0xfffff000
+
+/*
* Peripheral identifiers/interrupts.
*/
#define AT91_ID_FIQ 0 /* Advanced Interrupt Controller (FIQ) */
* Acknowledge interrupt with AIC after interrupt has been handled.
* (by kernel/irq.c)
*/
-#define irq_finish(irq) do { at91_sys_write(AT91_AIC_EOICR, 0); } while (0)
+#define irq_finish(irq) do { at91_aic_write(AT91_AIC_EOICR, 0); } while (0)
/*
#include <asm/mach/irq.h>
#include <asm/mach/map.h>
+void __iomem *at91_aic_base;
static void at91_aic_mask_irq(struct irq_data *d)
{
/* Disable interrupt on AIC */
- at91_sys_write(AT91_AIC_IDCR, 1 << d->irq);
+ at91_aic_write(AT91_AIC_IDCR, 1 << d->irq);
}
static void at91_aic_unmask_irq(struct irq_data *d)
{
/* Enable interrupt on AIC */
- at91_sys_write(AT91_AIC_IECR, 1 << d->irq);
+ at91_aic_write(AT91_AIC_IECR, 1 << d->irq);
}
unsigned int at91_extern_irq;
return -EINVAL;
}
- smr = at91_sys_read(AT91_AIC_SMR(d->irq)) & ~AT91_AIC_SRCTYPE;
- at91_sys_write(AT91_AIC_SMR(d->irq), smr | srctype);
+ smr = at91_aic_read(AT91_AIC_SMR(d->irq)) & ~AT91_AIC_SRCTYPE;
+ at91_aic_write(AT91_AIC_SMR(d->irq), smr | srctype);
return 0;
}
void at91_irq_suspend(void)
{
- backups = at91_sys_read(AT91_AIC_IMR);
- at91_sys_write(AT91_AIC_IDCR, backups);
- at91_sys_write(AT91_AIC_IECR, wakeups);
+ backups = at91_aic_read(AT91_AIC_IMR);
+ at91_aic_write(AT91_AIC_IDCR, backups);
+ at91_aic_write(AT91_AIC_IECR, wakeups);
}
void at91_irq_resume(void)
{
- at91_sys_write(AT91_AIC_IDCR, wakeups);
- at91_sys_write(AT91_AIC_IECR, backups);
+ at91_aic_write(AT91_AIC_IDCR, wakeups);
+ at91_aic_write(AT91_AIC_IECR, backups);
}
#else
{
unsigned int i;
+ at91_aic_base = ioremap(AT91_AIC, 512);
+
+ if (!at91_aic_base)
+ panic("Impossible to ioremap AT91_AIC\n");
+
/*
* The IVR is used by macro get_irqnr_and_base to read and verify.
* The irq number is NR_AIC_IRQS when a spurious interrupt has occurred.
*/
for (i = 0; i < NR_AIC_IRQS; i++) {
/* Put irq number in Source Vector Register: */
- at91_sys_write(AT91_AIC_SVR(i), i);
+ at91_aic_write(AT91_AIC_SVR(i), i);
/* Active Low interrupt, with the specified priority */
- at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
+ at91_aic_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
irq_set_chip_and_handler(i, &at91_aic_chip, handle_level_irq);
set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
/* Perform 8 End Of Interrupt Command to make sure AIC will not Lock out nIRQ */
if (i < 8)
- at91_sys_write(AT91_AIC_EOICR, 0);
+ at91_aic_write(AT91_AIC_EOICR, 0);
}
/*
* Spurious Interrupt ID in Spurious Vector Register is NR_AIC_IRQS
* When there is no current interrupt, the IRQ Vector Register reads the value stored in AIC_SPU
*/
- at91_sys_write(AT91_AIC_SPU, NR_AIC_IRQS);
+ at91_aic_write(AT91_AIC_SPU, NR_AIC_IRQS);
/* No debugging in AIC: Debug (Protect) Control Register */
- at91_sys_write(AT91_AIC_DCR, 0);
+ at91_aic_write(AT91_AIC_DCR, 0);
/* Disable and clear all interrupts initially */
- at91_sys_write(AT91_AIC_IDCR, 0xFFFFFFFF);
- at91_sys_write(AT91_AIC_ICCR, 0xFFFFFFFF);
+ at91_aic_write(AT91_AIC_IDCR, 0xFFFFFFFF);
+ at91_aic_write(AT91_AIC_ICCR, 0xFFFFFFFF);
}
| (1 << AT91_ID_FIQ)
| (1 << AT91_ID_SYS)
| (at91_extern_irq))
- & at91_sys_read(AT91_AIC_IMR),
+ & at91_aic_read(AT91_AIC_IMR),
state);
switch (state) {
}
pr_debug("AT91: PM - wakeup %08x\n",
- at91_sys_read(AT91_AIC_IPR) & at91_sys_read(AT91_AIC_IMR));
+ at91_aic_read(AT91_AIC_IPR) & at91_aic_read(AT91_AIC_IMR));
error:
target_state = PM_SUSPEND_ON;
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