| /* |
| * 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].chip = &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 */ |
| } |