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The number of lines of AIC5 has increased from 32 to 128. Due to this increase, a source select register has been introduced for the interrupt line selection. Moreover, register mapping has been changed. For that reasons, we need some dedicated callbacks for AIC5. Power management is also concerned by these changes. On suspend, we can't get the whole interrupt mask register as before, we have to read this register 128 times. To reduce this overhead, a snapshot of the whole IMR is maintained. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
100 lines
4.4 KiB
C
100 lines
4.4 KiB
C
/*
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* arch/arm/mach-at91/include/mach/at91_aic.h
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*
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* Copyright (C) 2005 Ivan Kokshaysky
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* Copyright (C) SAN People
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*
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* Advanced Interrupt Controller (AIC) - System peripherals registers.
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* Based on AT91RM9200 datasheet revision E.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef AT91_AIC_H
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#define AT91_AIC_H
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#ifndef __ASSEMBLY__
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extern void __iomem *at91_aic_base;
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#define at91_aic_read(field) \
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__raw_readl(at91_aic_base + field)
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#define at91_aic_write(field, value) \
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__raw_writel(value, at91_aic_base + field)
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#else
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.extern at91_aic_base
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#endif
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/* Number of irq lines managed by AIC */
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#define NR_AIC_IRQS 32
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#define NR_AIC5_IRQS 128
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#define AT91_AIC5_SSR 0x0 /* Source Select Register [AIC5] */
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#define AT91_AIC5_INTSEL_MSK (0x7f << 0) /* Interrupt Line Selection Mask */
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#define AT91_AIC_IRQ_MIN_PRIORITY 0
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#define AT91_AIC_IRQ_MAX_PRIORITY 7
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#define AT91_AIC_SMR(n) ((n) * 4) /* Source Mode Registers 0-31 */
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#define AT91_AIC5_SMR 0x4 /* Source Mode Register [AIC5] */
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#define AT91_AIC_PRIOR (7 << 0) /* Priority Level */
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#define AT91_AIC_SRCTYPE (3 << 5) /* Interrupt Source Type */
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#define AT91_AIC_SRCTYPE_LOW (0 << 5)
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#define AT91_AIC_SRCTYPE_FALLING (1 << 5)
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#define AT91_AIC_SRCTYPE_HIGH (2 << 5)
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#define AT91_AIC_SRCTYPE_RISING (3 << 5)
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#define AT91_AIC_SVR(n) (0x80 + ((n) * 4)) /* Source Vector Registers 0-31 */
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#define AT91_AIC5_SVR 0x8 /* Source Vector Register [AIC5] */
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#define AT91_AIC_IVR 0x100 /* Interrupt Vector Register */
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#define AT91_AIC5_IVR 0x10 /* Interrupt Vector Register [AIC5] */
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#define AT91_AIC_FVR 0x104 /* Fast Interrupt Vector Register */
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#define AT91_AIC5_FVR 0x14 /* Fast Interrupt Vector Register [AIC5] */
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#define AT91_AIC_ISR 0x108 /* Interrupt Status Register */
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#define AT91_AIC5_ISR 0x18 /* Interrupt Status Register [AIC5] */
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#define AT91_AIC_IRQID (0x1f << 0) /* Current Interrupt Identifier */
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#define AT91_AIC_IPR 0x10c /* Interrupt Pending Register */
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#define AT91_AIC5_IPR0 0x20 /* Interrupt Pending Register 0 [AIC5] */
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#define AT91_AIC5_IPR1 0x24 /* Interrupt Pending Register 1 [AIC5] */
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#define AT91_AIC5_IPR2 0x28 /* Interrupt Pending Register 2 [AIC5] */
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#define AT91_AIC5_IPR3 0x2c /* Interrupt Pending Register 3 [AIC5] */
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#define AT91_AIC_IMR 0x110 /* Interrupt Mask Register */
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#define AT91_AIC5_IMR 0x30 /* Interrupt Mask Register [AIC5] */
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#define AT91_AIC_CISR 0x114 /* Core Interrupt Status Register */
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#define AT91_AIC5_CISR 0x34 /* Core Interrupt Status Register [AIC5] */
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#define AT91_AIC_NFIQ (1 << 0) /* nFIQ Status */
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#define AT91_AIC_NIRQ (1 << 1) /* nIRQ Status */
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#define AT91_AIC_IECR 0x120 /* Interrupt Enable Command Register */
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#define AT91_AIC5_IECR 0x40 /* Interrupt Enable Command Register [AIC5] */
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#define AT91_AIC_IDCR 0x124 /* Interrupt Disable Command Register */
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#define AT91_AIC5_IDCR 0x44 /* Interrupt Disable Command Register [AIC5] */
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#define AT91_AIC_ICCR 0x128 /* Interrupt Clear Command Register */
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#define AT91_AIC5_ICCR 0x48 /* Interrupt Clear Command Register [AIC5] */
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#define AT91_AIC_ISCR 0x12c /* Interrupt Set Command Register */
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#define AT91_AIC5_ISCR 0x4c /* Interrupt Set Command Register [AIC5] */
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#define AT91_AIC_EOICR 0x130 /* End of Interrupt Command Register */
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#define AT91_AIC5_EOICR 0x38 /* End of Interrupt Command Register [AIC5] */
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#define AT91_AIC_SPU 0x134 /* Spurious Interrupt Vector Register */
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#define AT91_AIC5_SPU 0x3c /* Spurious Interrupt Vector Register [AIC5] */
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#define AT91_AIC_DCR 0x138 /* Debug Control Register */
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#define AT91_AIC5_DCR 0x6c /* Debug Control Register [AIC5] */
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#define AT91_AIC_DCR_PROT (1 << 0) /* Protection Mode */
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#define AT91_AIC_DCR_GMSK (1 << 1) /* General Mask */
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#define AT91_AIC_FFER 0x140 /* Fast Forcing Enable Register [SAM9 only] */
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#define AT91_AIC5_FFER 0x50 /* Fast Forcing Enable Register [AIC5] */
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#define AT91_AIC_FFDR 0x144 /* Fast Forcing Disable Register [SAM9 only] */
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#define AT91_AIC5_FFDR 0x54 /* Fast Forcing Disable Register [AIC5] */
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#define AT91_AIC_FFSR 0x148 /* Fast Forcing Status Register [SAM9 only] */
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#define AT91_AIC5_FFSR 0x58 /* Fast Forcing Status Register [AIC5] */
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void at91_aic_handle_irq(struct pt_regs *regs);
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void at91_aic5_handle_irq(struct pt_regs *regs);
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#endif
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