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author | Eric Miao <eric.y.miao@gmail.com> | 2009-12-26 16:23:02 +0800 |
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committer | Eric Miao <eric.y.miao@gmail.com> | 2010-03-02 07:40:51 +0800 |
commit | 19851c58e680f71d087b79b53edbf814193e1d33 (patch) | |
tree | 50a1c533c9953ec5e9c95d970a1e9788cf5308aa /arch/arm/common/sa1111.c | |
parent | 08fa159003aa510027951671b94aadc380ab2d2a (diff) | |
download | kernel_samsung_smdk4412-19851c58e680f71d087b79b53edbf814193e1d33.zip kernel_samsung_smdk4412-19851c58e680f71d087b79b53edbf814193e1d33.tar.gz kernel_samsung_smdk4412-19851c58e680f71d087b79b53edbf814193e1d33.tar.bz2 |
[ARM] sa1111: allow cascaded IRQs to be used by platforms
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/common/sa1111.c')
-rw-r--r-- | arch/arm/common/sa1111.c | 112 |
1 files changed, 88 insertions, 24 deletions
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 8ba7044..a52a27c 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -35,6 +35,58 @@ #include <asm/hardware/sa1111.h> +/* SA1111 IRQs */ +#define IRQ_GPAIN0 (0) +#define IRQ_GPAIN1 (1) +#define IRQ_GPAIN2 (2) +#define IRQ_GPAIN3 (3) +#define IRQ_GPBIN0 (4) +#define IRQ_GPBIN1 (5) +#define IRQ_GPBIN2 (6) +#define IRQ_GPBIN3 (7) +#define IRQ_GPBIN4 (8) +#define IRQ_GPBIN5 (9) +#define IRQ_GPCIN0 (10) +#define IRQ_GPCIN1 (11) +#define IRQ_GPCIN2 (12) +#define IRQ_GPCIN3 (13) +#define IRQ_GPCIN4 (14) +#define IRQ_GPCIN5 (15) +#define IRQ_GPCIN6 (16) +#define IRQ_GPCIN7 (17) +#define IRQ_MSTXINT (18) +#define IRQ_MSRXINT (19) +#define IRQ_MSSTOPERRINT (20) +#define IRQ_TPTXINT (21) +#define IRQ_TPRXINT (22) +#define IRQ_TPSTOPERRINT (23) +#define SSPXMTINT (24) +#define SSPRCVINT (25) +#define SSPROR (26) +#define AUDXMTDMADONEA (32) +#define AUDRCVDMADONEA (33) +#define AUDXMTDMADONEB (34) +#define AUDRCVDMADONEB (35) +#define AUDTFSR (36) +#define AUDRFSR (37) +#define AUDTUR (38) +#define AUDROR (39) +#define AUDDTS (40) +#define AUDRDD (41) +#define AUDSTO (42) +#define IRQ_USBPWR (43) +#define IRQ_HCIM (44) +#define IRQ_HCIBUFFACC (45) +#define IRQ_HCIRMTWKP (46) +#define IRQ_NHCIMFCIR (47) +#define IRQ_USB_PORT_RESUME (48) +#define IRQ_S0_READY_NINT (49) +#define IRQ_S1_READY_NINT (50) +#define IRQ_S0_CD_VALID (51) +#define IRQ_S1_CD_VALID (52) +#define IRQ_S0_BVD1_STSCHG (53) +#define IRQ_S1_BVD1_STSCHG (54) + extern void __init sa1110_mb_enable(void); /* @@ -49,6 +101,7 @@ struct sa1111 { struct clk *clk; unsigned long phys; int irq; + int irq_base; /* base for cascaded on-chip IRQs */ spinlock_t lock; void __iomem *base; #ifdef CONFIG_PM @@ -152,36 +205,37 @@ static void sa1111_irq_handler(unsigned int irq, struct irq_desc *desc) { unsigned int stat0, stat1, i; - void __iomem *base = get_irq_data(irq); + struct sa1111 *sachip = get_irq_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; - stat0 = sa1111_readl(base + SA1111_INTSTATCLR0); - stat1 = sa1111_readl(base + SA1111_INTSTATCLR1); + stat0 = sa1111_readl(mapbase + SA1111_INTSTATCLR0); + stat1 = sa1111_readl(mapbase + SA1111_INTSTATCLR1); - sa1111_writel(stat0, base + SA1111_INTSTATCLR0); + sa1111_writel(stat0, mapbase + SA1111_INTSTATCLR0); desc->chip->ack(irq); - sa1111_writel(stat1, base + SA1111_INTSTATCLR1); + sa1111_writel(stat1, mapbase + SA1111_INTSTATCLR1); if (stat0 == 0 && stat1 == 0) { do_bad_IRQ(irq, desc); return; } - for (i = IRQ_SA1111_START; stat0; i++, stat0 >>= 1) + for (i = 0; stat0; i++, stat0 >>= 1) if (stat0 & 1) - handle_edge_irq(i, irq_desc + i); + generic_handle_irq(i + sachip->irq_base); - for (i = IRQ_SA1111_START + 32; stat1; i++, stat1 >>= 1) + for (i = 32; stat1; i++, stat1 >>= 1) if (stat1 & 1) - handle_edge_irq(i, irq_desc + i); + generic_handle_irq(i + sachip->irq_base); /* For level-based interrupts */ desc->chip->unmask(irq); } -#define SA1111_IRQMASK_LO(x) (1 << (x - IRQ_SA1111_START)) -#define SA1111_IRQMASK_HI(x) (1 << (x - IRQ_SA1111_START - 32)) +#define SA1111_IRQMASK_LO(x) (1 << (x - sachip->irq_base)) +#define SA1111_IRQMASK_HI(x) (1 << (x - sachip->irq_base - 32)) static void sa1111_ack_irq(unsigned int irq) { @@ -189,7 +243,8 @@ static void sa1111_ack_irq(unsigned int irq) static void sa1111_mask_lowirq(unsigned int irq) { - void __iomem *mapbase = get_irq_chip_data(irq); + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned long ie0; ie0 = sa1111_readl(mapbase + SA1111_INTEN0); @@ -199,7 +254,8 @@ static void sa1111_mask_lowirq(unsigned int irq) static void sa1111_unmask_lowirq(unsigned int irq) { - void __iomem *mapbase = get_irq_chip_data(irq); + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned long ie0; ie0 = sa1111_readl(mapbase + SA1111_INTEN0); @@ -216,8 +272,9 @@ static void sa1111_unmask_lowirq(unsigned int irq) */ static int sa1111_retrigger_lowirq(unsigned int irq) { + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned int mask = SA1111_IRQMASK_LO(irq); - void __iomem *mapbase = get_irq_chip_data(irq); unsigned long ip0; int i; @@ -237,8 +294,9 @@ static int sa1111_retrigger_lowirq(unsigned int irq) static int sa1111_type_lowirq(unsigned int irq, unsigned int flags) { + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned int mask = SA1111_IRQMASK_LO(irq); - void __iomem *mapbase = get_irq_chip_data(irq); unsigned long ip0; if (flags == IRQ_TYPE_PROBE) @@ -260,8 +318,9 @@ static int sa1111_type_lowirq(unsigned int irq, unsigned int flags) static int sa1111_wake_lowirq(unsigned int irq, unsigned int on) { + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned int mask = SA1111_IRQMASK_LO(irq); - void __iomem *mapbase = get_irq_chip_data(irq); unsigned long we0; we0 = sa1111_readl(mapbase + SA1111_WAKEEN0); @@ -286,7 +345,8 @@ static struct irq_chip sa1111_low_chip = { static void sa1111_mask_highirq(unsigned int irq) { - void __iomem *mapbase = get_irq_chip_data(irq); + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned long ie1; ie1 = sa1111_readl(mapbase + SA1111_INTEN1); @@ -296,7 +356,8 @@ static void sa1111_mask_highirq(unsigned int irq) static void sa1111_unmask_highirq(unsigned int irq) { - void __iomem *mapbase = get_irq_chip_data(irq); + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned long ie1; ie1 = sa1111_readl(mapbase + SA1111_INTEN1); @@ -313,8 +374,9 @@ static void sa1111_unmask_highirq(unsigned int irq) */ static int sa1111_retrigger_highirq(unsigned int irq) { + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned int mask = SA1111_IRQMASK_HI(irq); - void __iomem *mapbase = get_irq_chip_data(irq); unsigned long ip1; int i; @@ -334,8 +396,9 @@ static int sa1111_retrigger_highirq(unsigned int irq) static int sa1111_type_highirq(unsigned int irq, unsigned int flags) { + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned int mask = SA1111_IRQMASK_HI(irq); - void __iomem *mapbase = get_irq_chip_data(irq); unsigned long ip1; if (flags == IRQ_TYPE_PROBE) @@ -357,8 +420,9 @@ static int sa1111_type_highirq(unsigned int irq, unsigned int flags) static int sa1111_wake_highirq(unsigned int irq, unsigned int on) { + struct sa1111 *sachip = get_irq_chip_data(irq); + void __iomem *mapbase = sachip->base + SA1111_INTC; unsigned int mask = SA1111_IRQMASK_HI(irq); - void __iomem *mapbase = get_irq_chip_data(irq); unsigned long we1; we1 = sa1111_readl(mapbase + SA1111_WAKEEN1); @@ -412,14 +476,14 @@ static void sa1111_setup_irq(struct sa1111 *sachip) for (irq = IRQ_GPAIN0; irq <= SSPROR; irq++) { set_irq_chip(irq, &sa1111_low_chip); - set_irq_chip_data(irq, irqbase); + set_irq_chip_data(irq, sachip); set_irq_handler(irq, handle_edge_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } for (irq = AUDXMTDMADONEA; irq <= IRQ_S1_BVD1_STSCHG; irq++) { set_irq_chip(irq, &sa1111_high_chip); - set_irq_chip_data(irq, irqbase); + set_irq_chip_data(irq, sachip); set_irq_handler(irq, handle_edge_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } @@ -428,7 +492,7 @@ static void sa1111_setup_irq(struct sa1111 *sachip) * Register SA1111 interrupt */ set_irq_type(sachip->irq, IRQ_TYPE_EDGE_RISING); - set_irq_data(sachip->irq, irqbase); + set_irq_data(sachip->irq, sachip); set_irq_chained_handler(sachip->irq, sa1111_irq_handler); } |