void __init init_IRQ(void)
{
int i;
DANUBE_INT_DMSG("init_IRQ\n");
board_be_handler = &danube_be_handler;
init_generic_irq();
/* mask all interrupt sources */
*DANUBE_ICU_IM0_IER = 0;
*DANUBE_ICU_IM1_IER = 0;
*DANUBE_ICU_IM2_IER = 0;
*DANUBE_ICU_IM3_IER = 0;
*DANUBE_ICU_IM4_IER = 0;
/* Now safe to set the exception vector. */
set_except_vector(0, mipsIRQ);
for (i = 0; i <= INT_NUM_IM4_IRL31; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].handler = &danube_irq_type;
}
set_c0_status(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
#ifdef CONFIG_KGDB
set_debug_traps();
breakpoint();
#endif
}
void __init init_IRQ(void)
{
int i;
init_generic_irq();
switch (mips_machtype) {
case MACH_LASAT_100:
lasat_int_status = (void *)LASAT_INT_STATUS_REG_100;
lasat_int_mask = (void *)LASAT_INT_MASK_REG_100;
lasat_int_mask_shift = LASATINT_MASK_SHIFT_100;
get_int_status = get_int_status_100;
*lasat_int_mask = 0;
break;
case MACH_LASAT_200:
lasat_int_status = (void *)LASAT_INT_STATUS_REG_200;
lasat_int_mask = (void *)LASAT_INT_MASK_REG_200;
lasat_int_mask_shift = LASATINT_MASK_SHIFT_200;
get_int_status = get_int_status_200;
*lasat_int_mask &= 0xffff;
break;
default:
panic("init_IRQ: mips_machtype incorrect");
}
/* Now safe to set the exception vector. */
set_except_vector(0, lasatIRQ);
for (i = 0; i <= LASATINT_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].handler = &lasat_irq_type;
}
}
void __init init_IRQ(void)
{
extern void __init init_generic_irq(void);
init_generic_irq();
irq_setup();
}
void __init nino_irq_setup(void)
{
extern asmlinkage void ninoIRQ(void);
extern void init_generic_irq(void);
unsigned int i;
/* Disable all hardware interrupts */
change_cp0_status(ST0_IM, 0x00);
/* Clear interrupts */
outl(0xffffffff, TX3912_INT1_CLEAR);
outl(0xffffffff, TX3912_INT2_CLEAR);
outl(0xffffffff, TX3912_INT3_CLEAR);
outl(0xffffffff, TX3912_INT4_CLEAR);
outl(0xffffffff, TX3912_INT5_CLEAR);
/*
* Disable all PR31700 interrupts. We let the various
* device drivers in the system register themselves
* and set the proper hardware bits.
*/
outl(0x00000000, TX3912_INT1_ENABLE);
outl(0x00000000, TX3912_INT2_ENABLE);
outl(0x00000000, TX3912_INT3_ENABLE);
outl(0x00000000, TX3912_INT4_ENABLE);
outl(0x00000000, TX3912_INT5_ENABLE);
/* Initialize IRQ vector table */
init_generic_irq();
/* Initialize IRQ action handlers */
for (i = 0; i < 16; i++) {
hw_irq_controller *handler = NULL;
if (i == 0 || i == 3)
handler = &irq6_type;
else
handler = &irq4_type;
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].handler = handler;
}
/* Set up the external interrupt exception vector */
set_except_vector(0, ninoIRQ);
/* Enable high priority interrupts */
outl(TX3912_INT6_ENABLE_GLOBALEN | TX3912_INT6_ENABLE_HIGH_PRIORITY,
TX3912_INT6_ENABLE);
/* Enable all interrupts */
change_cp0_status(ST0_IM, ALLINTS);
}
void __init init_IRQ(void)
{
memset(irq_desc, 0, sizeof(irq_desc));
init_generic_irq();
mips_cpu_irq_init(MIPS_CPU_IRQ_BASE);
init_vr41xx_icu_irq();
init_vr41xx_giuint_irq();
set_except_vector(0, vr41xx_handle_interrupt);
}
void __init init_IRQ(void)
{
int i;
unsigned long flags;
memset(irq_desc, 0, sizeof(irq_desc));
set_except_vector(0, it8172_IRQ);
init_generic_irq();
/* mask all interrupts */
it8172_hw0_icregs->lb_mask = 0xffff;
it8172_hw0_icregs->lpc_mask = 0xffff;
it8172_hw0_icregs->pci_mask = 0xffff;
it8172_hw0_icregs->nmi_mask = 0xffff;
/* make all interrupts level triggered */
it8172_hw0_icregs->lb_trigger = 0;
it8172_hw0_icregs->lpc_trigger = 0;
it8172_hw0_icregs->pci_trigger = 0;
it8172_hw0_icregs->nmi_trigger = 0;
/* active level setting */
/* uart, keyboard, and mouse are active high */
it8172_hw0_icregs->lpc_level = (0x10 | 0x2 | 0x1000);
it8172_hw0_icregs->lb_level |= 0x20;
/* keyboard and mouse are edge triggered */
it8172_hw0_icregs->lpc_trigger |= (0x2 | 0x1000);
#if 0
// Enable this piece of code to make internal USB interrupt
// edge triggered.
it8172_hw0_icregs->pci_trigger |=
(1 << (IT8172_USB_IRQ - IT8172_PCI_DEV_IRQ_BASE));
it8172_hw0_icregs->pci_level &=
~(1 << (IT8172_USB_IRQ - IT8172_PCI_DEV_IRQ_BASE));
#endif
for (i = 0; i <= IT8172_LAST_IRQ; i++) {
irq_desc[i].handler = &it8172_irq_type;
}
irq_desc[MIPS_CPU_TIMER_IRQ].handler = &cp0_irq_type;
set_cp0_status(ALLINTS_NOTIMER);
#ifdef CONFIG_REMOTE_DEBUG
/* If local serial I/O used for debug port, enter kgdb at once */
puts("Waiting for kgdb to connect...");
set_debug_traps();
breakpoint();
#endif
}
void __init init_IRQ(void)
{
set_except_vector(0, mipsIRQ);
init_generic_irq();
init_i8259_irqs();
#ifdef CONFIG_REMOTE_DEBUG
if (remote_debug) {
set_debug_traps();
breakpoint();
}
#endif
}
void __init init_IRQ(void)
{
int i;
set_except_vector(0, ev96100IRQ);
init_generic_irq();
for (i = 0; i < 8; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].handler = &ev96100_irq_type;
}
}
void __init init_IRQ(void)
{
#ifdef CONFIG_KGDB
extern void breakpoint(void);
extern void set_debug_traps(void);
printk("Wait for gdb client connection ...\n");
set_debug_traps();
breakpoint();
#endif
/* set up default irq controller */
init_generic_irq();
/* invoke board-specific irq setup */
irq_setup();
}
/*
* On systems with i8259-style interrupt controllers we assume for
* driver compatibility reasons interrupts 0 - 15 to be the i8259
* interrupts even if the hardware uses a different interrupt numbering.
*/
void __init init_IRQ (void)
{
int i;
set_except_vector(0, jazz_handle_int);
init_generic_irq();
init_i8259_irqs(); /* Integrated i8259 */
#if 0
init_jazz_irq();
/* Actually we've got more interrupts to handle ... */
for (i = PCIMT_IRQ_INT2; i <= PCIMT_IRQ_ETHERNET; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].handler = &pciasic_irq_type;
}
#endif
}
void __init init_IRQ(void)
{
int i;
/*
* Mask out all interrupt
*/
clear_cp0_status(0x0000ff00);
/* Now safe to set the exception vector. */
set_except_vector(0, mipsIRQ);
init_generic_irq();
for (i = 0; i <= SEADINT_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].lock = SPIN_LOCK_UNLOCKED;
irq_desc[i].handler = &sead_irq_type;
}
}
void __init init_IRQ(void)
{
unsigned int irq;
init_generic_irq();
/* Install our interrupt handler, then clear and disable all
* CRIME and MACE interrupts. */
crime_write(0, CRIME_INT_MASK);
crime_write(0, CRIME_HARD_INT);
crime_write(0, CRIME_SOFT_INT);
mace_perif_ctrl_write(0, istat);
mace_perif_ctrl_write(0, imask);
set_except_vector(0, ip32_handle_int);
for (irq = 0; irq <= IP32_IRQ_MAX; irq++) {
hw_irq_controller *controller;
if (irq == IP32_R4K_TIMER_IRQ)
controller = &ip32_cpu_interrupt;
else if (irq <= MACE_PCI_BRIDGE_IRQ && irq >= MACE_VID_IN1_IRQ)
controller = &ip32_mace_interrupt;
else if (irq <= MACEPCI_SHARED2_IRQ && irq >= MACEPCI_SCSI0_IRQ)
controller = &ip32_macepci_interrupt;
else if (irq <= CRIME_VICE_IRQ && irq >= CRIME_GBE0_IRQ)
controller = &ip32_crime_interrupt;
else
controller = &ip32_maceisa_interrupt;
irq_desc[irq].status = IRQ_DISABLED;
irq_desc[irq].action = 0;
irq_desc[irq].depth = 0;
irq_desc[irq].handler = controller;
}
setup_irq(CRIME_MEMERR_IRQ, &memerr_irq);
setup_irq(CRIME_CPUERR_IRQ, &cpuerr_irq);
#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
change_c0_status(ST0_IM, ALLINTS);
}
void __init init_IRQ(void)
{
int i;
unsigned long cp0_status;
cp0_status = read_32bit_cp0_register(CP0_STATUS);
memset(irq_desc, 0, sizeof(irq_desc));
set_except_vector(0, au1000_IRQ);
init_generic_irq();
/*
* Setup high priority interrupts on int_request0; low priority on
* int_request1
*/
for (i = 0; i <= NR_IRQS; i++) {
switch (i) {
case AU1000_MAC0_DMA_INT:
case AU1000_MAC1_DMA_INT:
setup_local_irq(i, INTC_INT_HIGH_LEVEL, 0);
irq_desc[i].handler = &level_irq_type;
break;
default: /* active high, level interrupt */
setup_local_irq(i, INTC_INT_HIGH_LEVEL, 1);
irq_desc[i].handler = &level_irq_type;
break;
}
}
set_cp0_status(ALLINTS);
#ifdef CONFIG_REMOTE_DEBUG
/* If local serial I/O used for debug port, enter kgdb at once */
puts("Waiting for kgdb to connect...");
set_debug_traps();
breakpoint();
#endif
}
void __init init_IRQ(void)
{
/*
* Clear all of the interrupts while we change the able around a bit.
* int-handler is not on bootstrap
*/
clear_c0_status(ST0_IM);
/* Sets the first-level interrupt dispatcher. */
set_except_vector(0, big_sur_handle_int);
init_generic_irq();
mips_cpu_irq_init(0);
big_sur_irq_init();
#ifdef CONFIG_REMOTE_DEBUG
printk("start kgdb ...\n");
set_debug_traps();
breakpoint(); /* you may move this line to whereever you want :-) */
#endif
#ifdef CONFIG_GDB_CONSOLE
register_gdb_console();
#endif
}
void __init init_IRQ(void)
{
int i;
unsigned long cp0_status;
au1xxx_irq_map_t *imp;
extern au1xxx_irq_map_t au1xxx_irq_map[];
extern int au1xxx_nr_irqs;
cp0_status = read_c0_status();
memset(irq_desc, 0, sizeof(irq_desc));
set_except_vector(0, au1000_IRQ);
init_generic_irq();
for (i = 0; i <= AU1000_MAX_INTR; i++) {
/* default is active high, level interrupt */
setup_local_irq(i, INTC_INT_HIGH_LEVEL, 0);
irq_desc[i].handler = &level_irq_type;
}
/* Now set up the irq mapping for the board.
*/
imp = au1xxx_irq_map;
for (i=0; i<au1xxx_nr_irqs; i++) {
setup_local_irq(imp->im_irq, imp->im_type, imp->im_request);
switch (imp->im_type) {
case INTC_INT_HIGH_LEVEL:
irq_desc[imp->im_irq].handler = &level_irq_type;
break;
case INTC_INT_LOW_LEVEL:
irq_desc[imp->im_irq].handler = &level_irq_type;
break;
case INTC_INT_RISE_EDGE:
irq_desc[imp->im_irq].handler = &rise_edge_irq_type;
break;
case INTC_INT_FALL_EDGE:
irq_desc[imp->im_irq].handler = &fall_edge_irq_type;
break;
case INTC_INT_RISE_AND_FALL_EDGE:
irq_desc[imp->im_irq].handler = &either_edge_irq_type;
break;
default:
panic("Unknown au1xxx irq map");
break;
}
imp++;
}
set_c0_status(ALLINTS);
/* Board specific IRQ initialization.
*/
if (board_init_irq)
(*board_init_irq)();
#ifdef CONFIG_KGDB
/* If local serial I/O used for debug port, enter kgdb at once */
puts("Waiting for kgdb to connect...");
set_debug_traps();
breakpoint();
#endif
}
void __init init_IRQ(void)
{
int i;
unsigned long cp0_status;
extern char except_vec0_au1000;
cp0_status = read_32bit_cp0_register(CP0_STATUS);
memset(irq_desc, 0, sizeof(irq_desc));
set_except_vector(0, au1000_IRQ);
init_generic_irq();
for (i = 0; i <= AU1000_MAX_INTR; i++) {
switch (i) {
case AU1000_UART0_INT:
case AU1000_UART3_INT:
#ifdef CONFIG_MIPS_PB1000
case AU1000_UART1_INT:
case AU1000_UART2_INT:
case AU1000_SSI0_INT:
case AU1000_SSI1_INT:
#endif
#ifdef CONFIG_MIPS_PB1100
case AU1000_UART1_INT:
case AU1000_SSI0_INT:
case AU1000_SSI1_INT:
#endif
case AU1000_DMA_INT_BASE:
case AU1000_DMA_INT_BASE+1:
case AU1000_DMA_INT_BASE+2:
case AU1000_DMA_INT_BASE+3:
case AU1000_DMA_INT_BASE+4:
case AU1000_DMA_INT_BASE+5:
case AU1000_DMA_INT_BASE+6:
case AU1000_DMA_INT_BASE+7:
case AU1000_IRDA_TX_INT:
case AU1000_IRDA_RX_INT:
case AU1000_MAC0_DMA_INT:
#ifdef CONFIG_MIPS_PB1000
case AU1000_MAC1_DMA_INT:
#endif
#ifdef CONFIG_MIPS_PB1500
case AU1000_MAC1_DMA_INT:
#endif
case AU1500_GPIO_204:
setup_local_irq(i, INTC_INT_HIGH_LEVEL, 0);
irq_desc[i].handler = &level_irq_type;
break;
#ifdef CONFIG_MIPS_PB1000
case AU1000_GPIO_15:
#endif
case AU1000_USB_HOST_INT:
#ifdef CONFIG_MIPS_PB1500
case AU1000_PCI_INTA:
case AU1000_PCI_INTB:
case AU1000_PCI_INTC:
case AU1000_PCI_INTD:
case AU1500_GPIO_201:
case AU1500_GPIO_202:
case AU1500_GPIO_203:
case AU1500_GPIO_205:
case AU1500_GPIO_207:
#endif
#ifdef CONFIG_MIPS_PB1100
case AU1000_GPIO_9: // PCMCIA Card Fully_Interted#
case AU1000_GPIO_10: // PCMCIA_STSCHG#
case AU1000_GPIO_11: // PCMCIA_IRQ#
case AU1000_GPIO_13: // DC_IRQ#
case AU1000_GPIO_23: // 2-wire SCL
#endif
setup_local_irq(i, INTC_INT_LOW_LEVEL, 0);
irq_desc[i].handler = &level_irq_type;
break;
case AU1000_ACSYNC_INT:
case AU1000_AC97C_INT:
case AU1000_TOY_INT:
case AU1000_TOY_MATCH0_INT:
case AU1000_TOY_MATCH1_INT:
case AU1000_USB_DEV_SUS_INT:
case AU1000_USB_DEV_REQ_INT:
case AU1000_RTC_INT:
case AU1000_RTC_MATCH0_INT:
case AU1000_RTC_MATCH1_INT:
case AU1000_RTC_MATCH2_INT:
setup_local_irq(i, INTC_INT_RISE_EDGE, 0);
irq_desc[i].handler = &rise_edge_irq_type;
break;
// Careful if you change match 2 request!
// The interrupt handler is called directly
// from the low level dispatch code.
case AU1000_TOY_MATCH2_INT:
setup_local_irq(i, INTC_INT_RISE_EDGE, 1);
irq_desc[i].handler = &rise_edge_irq_type;
break;
default: /* active high, level interrupt */
setup_local_irq(i, INTC_INT_HIGH_LEVEL, 0);
irq_desc[i].handler = &level_irq_type;
break;
}
}
set_cp0_status(ALLINTS);
#ifdef CONFIG_REMOTE_DEBUG
/* If local serial I/O used for debug port, enter kgdb at once */
puts("Waiting for kgdb to connect...");
set_debug_traps();
breakpoint();
#endif
}
void __init init_IRQ(void)
{
int i;
/* Init local mask --> irq tables. */
for (i = 0; i < 256; i++) {
if (i & 0x80) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 7;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 7;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 7;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 7;
} else if (i & 0x40) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 6;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 6;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 6;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 6;
} else if (i & 0x20) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 5;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 5;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 5;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 5;
} else if (i & 0x10) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 4;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 4;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 4;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 4;
} else if (i & 0x08) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 3;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 3;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 3;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 3;
} else if (i & 0x04) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 2;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 2;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 2;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 2;
} else if (i & 0x02) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 1;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 1;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 1;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 1;
} else if (i & 0x01) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 0;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 0;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 0;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 0;
} else {
lc0msk_to_irqnr[i] = 0;
lc1msk_to_irqnr[i] = 0;
lc2msk_to_irqnr[i] = 0;
lc3msk_to_irqnr[i] = 0;
}
}
/* Mask out all interrupts. */
sgint->imask0 = 0;
sgint->imask1 = 0;
sgint->cmeimask0 = 0;
sgint->cmeimask1 = 0;
set_except_vector(0, indyIRQ);
init_generic_irq();
/* init CPU irqs */
mips_cpu_irq_init(SGINT_CPU);
for (i = SGINT_LOCAL0; i < SGI_INTERRUPTS; i++) {
hw_irq_controller *handler;
if (i < SGINT_LOCAL1)
handler = &ip22_local0_irq_type;
else if (i < SGINT_LOCAL2)
handler = &ip22_local1_irq_type;
else if (i < SGINT_LOCAL3)
handler = &ip22_local2_irq_type;
else
handler = &ip22_local3_irq_type;
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].handler = handler;
}
/* vector handler. this register the IRQ as non-sharable */
setup_irq(SGI_LOCAL_0_IRQ, &local0_cascade);
setup_irq(SGI_LOCAL_1_IRQ, &local1_cascade);
setup_irq(SGI_BUSERR_IRQ, &buserr);
/* cascade in cascade. i love Indy ;-) */
setup_irq(SGI_MAP_0_IRQ, &map0_cascade);
#ifdef USE_LIO3_IRQ
setup_irq(SGI_MAP_1_IRQ, &map1_cascade);
#endif
#ifdef CONFIG_EISA
if (ip22_is_fullhouse()) /* Only Indigo-2 has EISA stuff */
ip22_eisa_init ();
#endif
}
void __init init_IRQ(void)
{
int i;
sgi_i2regs = (struct sgi_int2_regs *) (KSEG1 + SGI_INT2_BASE);
sgi_i3regs = (struct sgi_int3_regs *) (KSEG1 + SGI_INT3_BASE);
/* Init local mask --> irq tables. */
for (i = 0; i < 256; i++) {
if (i & 0x80) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 7;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 7;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 7;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 7;
} else if (i & 0x40) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 6;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 6;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 6;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 6;
} else if (i & 0x20) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 5;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 5;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 5;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 5;
} else if (i & 0x10) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 4;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 4;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 4;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 4;
} else if (i & 0x08) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 3;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 3;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 3;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 3;
} else if (i & 0x04) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 2;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 2;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 2;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 2;
} else if (i & 0x02) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 1;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 1;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 1;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 1;
} else if (i & 0x01) {
lc0msk_to_irqnr[i] = SGINT_LOCAL0 + 0;
lc1msk_to_irqnr[i] = SGINT_LOCAL1 + 0;
lc2msk_to_irqnr[i] = SGINT_LOCAL2 + 0;
lc3msk_to_irqnr[i] = SGINT_LOCAL3 + 0;
} else {
lc0msk_to_irqnr[i] = 0;
lc1msk_to_irqnr[i] = 0;
lc2msk_to_irqnr[i] = 0;
lc3msk_to_irqnr[i] = 0;
}
}
/* Indy uses an INT3, Indigo2 uses an INT2 */
if (sgi_guiness) {
ioc_icontrol = &sgi_i3regs->ints;
ioc_timers = &sgi_i3regs->timers;
ioc_tclear = &sgi_i3regs->tclear;
} else {
ioc_icontrol = &sgi_i2regs->ints;
ioc_timers = &sgi_i2regs->timers;
ioc_tclear = &sgi_i2regs->tclear;
}
/* Mask out all interrupts. */
ioc_icontrol->imask0 = 0;
ioc_icontrol->imask1 = 0;
ioc_icontrol->cmeimask0 = 0;
ioc_icontrol->cmeimask1 = 0;
set_except_vector(0, indyIRQ);
init_generic_irq();
/* init CPU irqs */
mips_cpu_irq_init(SGINT_CPU);
for (i = SGINT_LOCAL0; i < SGINT_END; i++) {
hw_irq_controller *handler;
if (i < SGINT_LOCAL1)
handler = &ip22_local0_irq_type;
else if (i < SGINT_LOCAL2)
handler = &ip22_local1_irq_type;
else if (i < SGINT_LOCAL3)
handler = &ip22_local2_irq_type;
else
handler = &ip22_local3_irq_type;
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].handler = handler;
}
/* vector handler. this register the IRQ as non-sharable */
setup_irq(SGI_LOCAL_0_IRQ, &local0_cascade);
setup_irq(SGI_LOCAL_1_IRQ, &local1_cascade);
setup_irq(SGI_BUSERR_IRQ, &buserr);
/* cascade in cascade. i love Indy ;-) */
setup_irq(SGI_MAP_0_IRQ, &map0_cascade);
#ifdef I_REALLY_NEED_THIS_IRQ
setup_irq(SGI_MAP_1_IRQ, &map1_cascade);
#endif
#ifdef CONFIG_IP22_EISA
if (!sgi_guiness) /* Only Indigo-2 have EISA stuff */
ip22_eisa_init ();
#endif
}
void __init init_IRQ(void)
{
int i;
unsigned long cp0_status;
au1xxx_irq_map_t *imp;
extern au1xxx_irq_map_t au1xxx_irq_map[];
extern au1xxx_irq_map_t au1xxx_ic0_map[];
extern int au1xxx_nr_irqs;
extern int au1xxx_ic0_nr_irqs;
cp0_status = read_c0_status();
memset(irq_desc, 0, sizeof(irq_desc));
set_except_vector(0, au1000_IRQ);
init_generic_irq();
/* Initialize interrupt controllers to a safe state.
*/
au_writel(0xffffffff, IC0_CFG0CLR);
au_writel(0xffffffff, IC0_CFG1CLR);
au_writel(0xffffffff, IC0_CFG2CLR);
au_writel(0xffffffff, IC0_MASKCLR);
au_writel(0xffffffff, IC0_ASSIGNSET);
au_writel(0xffffffff, IC0_WAKECLR);
au_writel(0xffffffff, IC0_SRCSET);
au_writel(0xffffffff, IC0_FALLINGCLR);
au_writel(0xffffffff, IC0_RISINGCLR);
au_writel(0x00000000, IC0_TESTBIT);
au_writel(0xffffffff, IC1_CFG0CLR);
au_writel(0xffffffff, IC1_CFG1CLR);
au_writel(0xffffffff, IC1_CFG2CLR);
au_writel(0xffffffff, IC1_MASKCLR);
au_writel(0xffffffff, IC1_ASSIGNSET);
au_writel(0xffffffff, IC1_WAKECLR);
au_writel(0xffffffff, IC1_SRCSET);
au_writel(0xffffffff, IC1_FALLINGCLR);
au_writel(0xffffffff, IC1_RISINGCLR);
au_writel(0x00000000, IC1_TESTBIT);
/* Initialize IC0, which is fixed per processor.
*/
imp = au1xxx_ic0_map;
for (i=0; i<au1xxx_ic0_nr_irqs; i++) {
setup_local_irq(imp->im_irq, imp->im_type, imp->im_request);
imp++;
}
/* Now set up the irq mapping for the board.
*/
imp = au1xxx_irq_map;
for (i=0; i<au1xxx_nr_irqs; i++) {
setup_local_irq(imp->im_irq, imp->im_type, imp->im_request);
imp++;
}
set_c0_status(ALLINTS);
/* Board specific IRQ initialization.
*/
if (board_init_irq)
(*board_init_irq)();
#ifdef CONFIG_KGDB
/* If local serial I/O used for debug port, enter kgdb at once */
puts("Waiting for kgdb to connect...");
set_debug_traps();
breakpoint();
#endif
}
