diff options
Diffstat (limited to 'arch/sh/boards/se/7343/irq.c')
| -rw-r--r-- | arch/sh/boards/se/7343/irq.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/arch/sh/boards/se/7343/irq.c b/arch/sh/boards/se/7343/irq.c deleted file mode 100644 index 763f6de..0000000 --- a/arch/sh/boards/se/7343/irq.c +++ /dev/null @@ -1,202 +0,0 @@ -/* - * arch/sh/boards/se/7343/irq.c - * - */ -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/mach/se7343.h> - -static void -disable_intreq_irq(unsigned int irq) -{ - int bit = irq - OFFCHIP_IRQ_BASE; - u16 val; - - val = ctrl_inw(PA_CPLD_IMSK); - val |= 1 << bit; - ctrl_outw(val, PA_CPLD_IMSK); -} - -static void -enable_intreq_irq(unsigned int irq) -{ - int bit = irq - OFFCHIP_IRQ_BASE; - u16 val; - - val = ctrl_inw(PA_CPLD_IMSK); - val &= ~(1 << bit); - ctrl_outw(val, PA_CPLD_IMSK); -} - -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 = "FPGA-IRQ", - .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 -}; - -static 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) -{ - int bit; - volatile u16 val; - - if (irq == IRQ5_IRQ) { - /* Read status Register */ - val = ctrl_inw(PA_CPLD_ST); - bit = ffs(val); - if (bit != 0) - return OFFCHIP_IRQ_BASE + bit - 1; - } - return irq; -} - -/* IRQ5 is multiplexed between the following sources: - * 1. PC Card socket - * 2. Extension slot - * 3. USB Controller - * 4. Serial Controller - * - * We configure IRQ5 as a cascade IRQ. - */ -static struct irqaction irq5 = { - .handler = no_action, - .mask = CPU_MASK_NONE, - .name = "IRQ5-cascade", -}; - -static struct ipr_data se7343_irq5_ipr_map[] = { - { IRQ5_IRQ, IRQ5_IPR_ADDR+2, IRQ5_IPR_POS, IRQ5_PRIORITY }, -}; -static struct ipr_data se7343_siof0_vpu_ipr_map[] = { - { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - { VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8 }, -}; -static struct ipr_data se7343_other_ipr_map[] = { - { DMTE0_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { DMTE1_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY }, - { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY }, - { DMTE5_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY }, - - /* I2C block */ - { IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - { IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - { IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - { IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY }, - - { IIC1_ALI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY }, - { IIC1_TACKI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY }, - { IIC1_WAITI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY }, - { IIC1_DTEI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY }, - - /* SIOF */ - { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY }, - - /* SIU */ - { SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY }, - - /* VIO interrupt */ - { CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY }, - { BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY }, - { VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY }, - - /*MFI interrupt*/ - - { MFI_IRQ, MFI_IPR_ADDR, MFI_IPR_POS, MFI_PRIORITY }, - - /* LCD controller */ - { LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY }, -}; - -/* - * Initialize IRQ setting - */ -void __init -init_7343se_IRQ(void) -{ - /* Setup Multiplexed interrupts */ - ctrl_outw(8, PA_CPLD_MODESET); /* Set all CPLD interrupts to active - * low. - */ - /* Mask all CPLD controller interrupts */ - ctrl_outw(0x0fff, PA_CPLD_IMSK); - - /* PC Card interrupts */ - make_intreq_irq(PC_IRQ0); - make_intreq_irq(PC_IRQ1); - make_intreq_irq(PC_IRQ2); - make_intreq_irq(PC_IRQ3); - - /* Extension Slot Interrupts */ - make_intreq_irq(EXT_IRQ0); - make_intreq_irq(EXT_IRQ1); - make_intreq_irq(EXT_IRQ2); - make_intreq_irq(EXT_IRQ3); - - /* USB Controller interrupts */ - make_intreq_irq(USB_IRQ0); - make_intreq_irq(USB_IRQ1); - - /* Serial Controller interrupts */ - make_intreq_irq(UART_IRQ0); - make_intreq_irq(UART_IRQ1); - - /* Setup all external interrupts to be active low */ - ctrl_outw(0xaaaa, INTC_ICR1); - - make_ipr_irq(se7343_irq5_ipr_map, ARRAY_SIZE(se7343_irq5_ipr_map)); - - setup_irq(IRQ5_IRQ, &irq5); - /* Set port control to use IRQ5 */ - *(u16 *)0xA4050108 &= ~0xc; - - make_ipr_irq(se7343_siof0_vpu_ipr_map, ARRAY_SIZE(se7343_siof0_vpu_ipr_map)); - - ctrl_outb(0x0f, INTC_IMCR5); /* enable SCIF IRQ */ - - make_ipr_irq(se7343_other_ipr_map, ARRAY_SIZE(se7343_other_ipr_map)); - - ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */ -} |
