From 88ff5fbaaa2d7334764c814c52836ba1c5be0c3a Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Thu, 3 Nov 2011 01:12:50 +0800 Subject: [PATCH] ARM: at91: make aic soc independent on all at91 have the Advanced Interrupt Controller starts at address 0xfffff000 Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Nicolas Ferre --- arch/arm/mach-at91/include/mach/at91_aic.h | 46 +++++++++++-------- arch/arm/mach-at91/include/mach/at91cap9.h | 1 - arch/arm/mach-at91/include/mach/at91rm9200.h | 1 - arch/arm/mach-at91/include/mach/at91sam9260.h | 1 - arch/arm/mach-at91/include/mach/at91sam9261.h | 1 - arch/arm/mach-at91/include/mach/at91sam9263.h | 1 - arch/arm/mach-at91/include/mach/at91sam9g45.h | 1 - arch/arm/mach-at91/include/mach/at91sam9rl.h | 1 - arch/arm/mach-at91/include/mach/at91x40.h | 1 - arch/arm/mach-at91/include/mach/entry-macro.S | 10 ++-- arch/arm/mach-at91/include/mach/hardware.h | 6 +++ arch/arm/mach-at91/include/mach/irqs.h | 2 +- arch/arm/mach-at91/irq.c | 38 ++++++++------- 13 files changed, 62 insertions(+), 48 deletions(-) diff --git a/arch/arm/mach-at91/include/mach/at91_aic.h b/arch/arm/mach-at91/include/mach/at91_aic.h index 03566799d3be..f163bb6218b3 100644 --- a/arch/arm/mach-at91/include/mach/at91_aic.h +++ b/arch/arm/mach-at91/include/mach/at91_aic.h @@ -16,7 +16,17 @@ #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); +#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) @@ -24,30 +34,30 @@ #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 diff --git a/arch/arm/mach-at91/include/mach/at91cap9.h b/arch/arm/mach-at91/include/mach/at91cap9.h index bca2b54de73e..4c0e2f6011d7 100644 --- a/arch/arm/mach-at91/include/mach/at91cap9.h +++ b/arch/arm/mach-at91/include/mach/at91cap9.h @@ -82,7 +82,6 @@ #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() ? \ diff --git a/arch/arm/mach-at91/include/mach/at91rm9200.h b/arch/arm/mach-at91/include/mach/at91rm9200.h index 1f767e28ea50..90e92a8b3cb5 100644 --- a/arch/arm/mach-at91/include/mach/at91rm9200.h +++ b/arch/arm/mach-at91/include/mach/at91rm9200.h @@ -79,7 +79,6 @@ /* * 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 */ diff --git a/arch/arm/mach-at91/include/mach/at91sam9260.h b/arch/arm/mach-at91/include/mach/at91sam9260.h index e360d6665437..f937c476bb67 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9260.h +++ b/arch/arm/mach-at91/include/mach/at91sam9260.h @@ -82,7 +82,6 @@ */ #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) diff --git a/arch/arm/mach-at91/include/mach/at91sam9261.h b/arch/arm/mach-at91/include/mach/at91sam9261.h index 2ccc8a53985b..175604e261be 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9261.h +++ b/arch/arm/mach-at91/include/mach/at91sam9261.h @@ -67,7 +67,6 @@ */ #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) diff --git a/arch/arm/mach-at91/include/mach/at91sam9263.h b/arch/arm/mach-at91/include/mach/at91sam9263.h index aee137ba5bcf..80c915002d83 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9263.h +++ b/arch/arm/mach-at91/include/mach/at91sam9263.h @@ -77,7 +77,6 @@ #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) diff --git a/arch/arm/mach-at91/include/mach/at91sam9g45.h b/arch/arm/mach-at91/include/mach/at91sam9g45.h index 211721b790a7..ac5c471635dc 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9g45.h +++ b/arch/arm/mach-at91/include/mach/at91sam9g45.h @@ -89,7 +89,6 @@ #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) diff --git a/arch/arm/mach-at91/include/mach/at91sam9rl.h b/arch/arm/mach-at91/include/mach/at91sam9rl.h index 4f7367a53f04..c466e8c898ad 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9rl.h +++ b/arch/arm/mach-at91/include/mach/at91sam9rl.h @@ -71,7 +71,6 @@ */ #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) diff --git a/arch/arm/mach-at91/include/mach/at91x40.h b/arch/arm/mach-at91/include/mach/at91x40.h index a152ff87e688..a57829f4fd18 100644 --- a/arch/arm/mach-at91/include/mach/at91x40.h +++ b/arch/arm/mach-at91/include/mach/at91x40.h @@ -40,7 +40,6 @@ #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. diff --git a/arch/arm/mach-at91/include/mach/entry-macro.S b/arch/arm/mach-at91/include/mach/entry-macro.S index 7ab68f972227..631f654681de 100644 --- a/arch/arm/mach-at91/include/mach/entry-macro.S +++ b/arch/arm/mach-at91/include/mach/entry-macro.S @@ -17,16 +17,16 @@ .endm .macro get_irqnr_preamble, base, tmp - ldr \base, =(AT91_VA_BASE_SYS + AT91_AIC) @ base virtual address of AIC peripheral + ldr \base, =AT91_IO_P2V(AT91_AIC) @ base virtual address of AIC peripheral .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 diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h index 435764ee8490..2d0e4e998566 100644 --- a/arch/arm/mach-at91/include/mach/hardware.h +++ b/arch/arm/mach-at91/include/mach/hardware.h @@ -57,6 +57,12 @@ #define AT91_BASE_SYS 0xffffc000 #endif +/* + * On all at91 have the Advanced Interrupt Controller starts at address + * 0xfffff000 + */ +#define AT91_AIC 0xfffff000 + /* * Peripheral identifiers/interrupts. */ diff --git a/arch/arm/mach-at91/include/mach/irqs.h b/arch/arm/mach-at91/include/mach/irqs.h index 36bd55f3fc6e..ac8b7dfc85ef 100644 --- a/arch/arm/mach-at91/include/mach/irqs.h +++ b/arch/arm/mach-at91/include/mach/irqs.h @@ -31,7 +31,7 @@ * 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) /* diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c index 9665265ec757..be6b639ecd7b 100644 --- a/arch/arm/mach-at91/irq.c +++ b/arch/arm/mach-at91/irq.c @@ -33,17 +33,18 @@ #include #include +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; @@ -77,8 +78,8 @@ static int at91_aic_set_type(struct irq_data *d, unsigned type) 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; } @@ -102,15 +103,15 @@ static int at91_aic_set_wake(struct irq_data *d, unsigned value) 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 @@ -133,34 +134,39 @@ void __init at91_aic_init(unsigned int priority[NR_AIC_IRQS]) { 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); } -- 2.39.5