diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-shmobile/board-ag5evm.c | 17 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/sh73a0.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/intc-sh73a0.c | 65 |
3 files changed, 71 insertions, 15 deletions
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c index d6e46171052..83624e26b88 100644 --- a/arch/arm/mach-shmobile/board-ag5evm.c +++ b/arch/arm/mach-shmobile/board-ag5evm.c @@ -59,7 +59,7 @@ static struct resource smsc9220_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = gic_spi(33), /* PINT1 */ + .start = SH73A0_PINT0_IRQ(2), /* PINTA2 */ .flags = IORESOURCE_IRQ, }, }; @@ -474,19 +474,6 @@ static void __init ag5evm_map_io(void) shmobile_setup_console(); } -#define PINTC_ADDR 0xe6900000 -#define PINTER0A (PINTC_ADDR + 0xa0) -#define PINTCR0A (PINTC_ADDR + 0xb0) - -void __init ag5evm_init_irq(void) -{ - sh73a0_init_irq(); - - /* setup PINT: enable PINTA2 as active low */ - __raw_writel(__raw_readl(PINTER0A) | (1<<29), PINTER0A); - __raw_writew(__raw_readw(PINTCR0A) | (2<<10), PINTCR0A); -} - #define DSI0PHYCR 0xe615006c static void __init ag5evm_init(void) @@ -620,7 +607,7 @@ struct sys_timer ag5evm_timer = { MACHINE_START(AG5EVM, "ag5evm") .map_io = ag5evm_map_io, - .init_irq = ag5evm_init_irq, + .init_irq = sh73a0_init_irq, .handle_irq = shmobile_handle_irq_gic, .init_machine = ag5evm_init, .timer = &ag5evm_timer, diff --git a/arch/arm/mach-shmobile/include/mach/sh73a0.h b/arch/arm/mach-shmobile/include/mach/sh73a0.h index b385e976797..18ae6a990bc 100644 --- a/arch/arm/mach-shmobile/include/mach/sh73a0.h +++ b/arch/arm/mach-shmobile/include/mach/sh73a0.h @@ -507,4 +507,8 @@ enum { SHDMA_SLAVE_MMCIF_RX, }; +/* PINT interrupts are located at Linux IRQ 768 and up */ +#define SH73A0_PINT0_IRQ(irq) ((irq) + 768) +#define SH73A0_PINT1_IRQ(irq) ((irq) + 800) + #endif /* __ASM_SH73A0_H__ */ diff --git a/arch/arm/mach-shmobile/intc-sh73a0.c b/arch/arm/mach-shmobile/intc-sh73a0.c index 836e8155798..1eda6b0b69e 100644 --- a/arch/arm/mach-shmobile/intc-sh73a0.c +++ b/arch/arm/mach-shmobile/intc-sh73a0.c @@ -23,6 +23,7 @@ #include <linux/io.h> #include <linux/sh_intc.h> #include <mach/intc.h> +#include <mach/sh73a0.h> #include <asm/hardware/gic.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -363,6 +364,59 @@ static irqreturn_t sh73a0_irq_pin_demux(int irq, void *dev_id) static struct irqaction sh73a0_irq_pin_cascade[32]; +#define PINTER0 0xe69000a0 +#define PINTER1 0xe69000a4 +#define PINTRR0 0xe69000d0 +#define PINTRR1 0xe69000d4 + +#define PINT0A_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq)) +#define PINT0B_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq + 8)) +#define PINT0C_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq + 16)) +#define PINT0D_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq + 24)) +#define PINT1E_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT1_IRQ(irq)) + +INTC_PINT(intc_pint0, PINTER0, 0xe69000b0, "sh73a0-pint0", \ + INTC_PINT_E(A), INTC_PINT_E(B), INTC_PINT_E(C), INTC_PINT_E(D), \ + INTC_PINT_V(A, PINT0A_IRQ), INTC_PINT_V(B, PINT0B_IRQ), \ + INTC_PINT_V(C, PINT0C_IRQ), INTC_PINT_V(D, PINT0D_IRQ), \ + INTC_PINT_E(A), INTC_PINT_E(B), INTC_PINT_E(C), INTC_PINT_E(D), \ + INTC_PINT_E(A), INTC_PINT_E(B), INTC_PINT_E(C), INTC_PINT_E(D)); + +INTC_PINT(intc_pint1, PINTER1, 0xe69000c0, "sh73a0-pint1", \ + INTC_PINT_E(E), INTC_PINT_E_EMPTY, INTC_PINT_E_EMPTY, INTC_PINT_E_EMPTY, \ + INTC_PINT_V(E, PINT1E_IRQ), INTC_PINT_V_NONE, \ + INTC_PINT_V_NONE, INTC_PINT_V_NONE, \ + INTC_PINT_E_NONE, INTC_PINT_E_NONE, INTC_PINT_E_NONE, INTC_PINT_E(E), \ + INTC_PINT_E(E), INTC_PINT_E_NONE, INTC_PINT_E_NONE, INTC_PINT_E_NONE); + +static struct irqaction sh73a0_pint0_cascade; +static struct irqaction sh73a0_pint1_cascade; + +static void pint_demux(unsigned long rr, unsigned long er, int base_irq) +{ + unsigned long value = ioread32(rr) & ioread32(er); + int k; + + for (k = 0; k < 32; k++) { + if (value & (1 << (31 - k))) { + generic_handle_irq(base_irq + k); + iowrite32(~(1 << (31 - k)), rr); + } + } +} + +static irqreturn_t sh73a0_pint0_demux(int irq, void *dev_id) +{ + pint_demux(PINTRR0, PINTER0, SH73A0_PINT0_IRQ(0)); + return IRQ_HANDLED; +} + +static irqreturn_t sh73a0_pint1_demux(int irq, void *dev_id) +{ + pint_demux(PINTRR1, PINTER1, SH73A0_PINT1_IRQ(0)); + return IRQ_HANDLED; +} + void __init sh73a0_init_irq(void) { void __iomem *gic_dist_base = __io(0xf0001000); @@ -375,6 +429,8 @@ void __init sh73a0_init_irq(void) register_intc_controller(&intcs_desc); register_intc_controller(&intca_irq_pins_desc); + register_intc_controller(&intc_pint0_desc); + register_intc_controller(&intc_pint1_desc); /* demux using INTEVTSA */ sh73a0_intcs_cascade.name = "INTCS cascade"; @@ -393,4 +449,13 @@ void __init sh73a0_init_irq(void) handle_level_irq, "level"); set_irq_flags(n, IRQF_VALID); /* yuck */ } + + /* PINT pins are sanely tied to the GIC as SPI */ + sh73a0_pint0_cascade.name = "PINT0 cascade"; + sh73a0_pint0_cascade.handler = sh73a0_pint0_demux; + setup_irq(gic_spi(33), &sh73a0_pint0_cascade); + + sh73a0_pint1_cascade.name = "PINT1 cascade"; + sh73a0_pint1_cascade.handler = sh73a0_pint1_demux; + setup_irq(gic_spi(34), &sh73a0_pint1_cascade); } |