diff options
Diffstat (limited to 'arch/sh/boards/se/73180/irq.c')
| -rw-r--r-- | arch/sh/boards/se/73180/irq.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/arch/sh/boards/se/73180/irq.c b/arch/sh/boards/se/73180/irq.c new file mode 100644 index 00000000000..70f04caad9a --- /dev/null +++ b/arch/sh/boards/se/73180/irq.c @@ -0,0 +1,137 @@ +/* + * arch/sh/boards/se/73180/irq.c + * + * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp> + * Based on arch/sh/boards/se/7300/irq.c + * + * Modified for SH-Mobile SolutionEngine 73180 Support + * by YOSHII Takashi <yoshii-takashi@hitachi-ul.co.jp> + * + * + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/mach/se73180.h> + +static int +intreq2irq(int i) +{ + if (i == 5) + return 10; + return 32 + 7 - i; +} + +static int +irq2intreq(int irq) +{ + if (irq == 10) + return 5; + return 7 - (irq - 32); +} + +static void +disable_intreq_irq(unsigned int irq) +{ + ctrl_outb(1 << (7 - irq2intreq(irq)), INTMSK0); +} + +static void +enable_intreq_irq(unsigned int irq) +{ + ctrl_outb(1 << (7 - irq2intreq(irq)), INTMSKCLR0); +} + +static void +mask_and_ack_intreq_irq(unsigned int irq) +{ + disable_intreq_irq(irq); +} + +static unsigned int +startup_intreq_irq(unsigned int irq) +{ + enable_intreq_irq(irq); + return 0; +} + +static void +shutdown_intreq_irq(unsigned int irq) +{ + disable_intreq_irq(irq); +} + +static void +end_intreq_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) + enable_intreq_irq(irq); +} + +static struct hw_interrupt_type intreq_irq_type = { + .typename = "intreq", + .startup = startup_intreq_irq, + .shutdown = shutdown_intreq_irq, + .enable = enable_intreq_irq, + .disable = disable_intreq_irq, + .ack = mask_and_ack_intreq_irq, + .end = end_intreq_irq +}; + +void +make_intreq_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].handler = &intreq_irq_type; + disable_intreq_irq(irq); +} + +int +shmse_irq_demux(int irq) +{ + if (irq == IRQ5_IRQ) + return 10; + return irq; +} + +/* + * Initialize IRQ setting + */ +void __init +init_73180se_IRQ(void) +{ + make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY); + + ctrl_outw(0x2000, 0xb03fffec); /* mrshpc irq enable */ + ctrl_outw(0x2000, 0xb07fffec); /* mrshpc irq enable */ + ctrl_outl(3 << ((7 - 5) * 4), INTC_INTPRI0); /* irq5 pri=3 */ + ctrl_outw(2 << ((7 - 5) * 2), INTC_ICR1); /* low-level irq */ + make_intreq_irq(10); + + make_ipr_irq(VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8); + + ctrl_outb(0x0f, INTC_IMCR5); /* enable SCIF IRQ */ + + make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY); + make_ipr_irq(IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY); + make_ipr_irq(IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, + IIC0_PRIORITY); + make_ipr_irq(IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, + IIC0_PRIORITY); + make_ipr_irq(IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY); + make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY); + make_ipr_irq(SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY); + + /* VIO interrupt */ + make_ipr_irq(CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + make_ipr_irq(BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + make_ipr_irq(VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + + make_ipr_irq(LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY); + ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */ +} |