setup.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:23k
- /*
- * Setup the interrupt stuff.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1998 Harald Koerfgen
- * Copyright (C) 2000, 2001, 2002 Maciej W. Rozycki
- */
- #include <linux/config.h>
- #include <linux/sched.h>
- #include <linux/interrupt.h>
- #include <linux/mc146818rtc.h>
- #include <linux/param.h>
- #include <linux/console.h>
- #include <linux/init.h>
- #include <linux/module.h>
- #include <linux/types.h>
- #include <asm/cpu.h>
- #include <asm/bootinfo.h>
- #include <asm/irq.h>
- #include <asm/irq_cpu.h>
- #include <asm/mipsregs.h>
- #include <asm/reboot.h>
- #include <asm/traps.h>
- #include <asm/wbflush.h>
- #include <asm/dec/interrupts.h>
- #include <asm/dec/kn01.h>
- #include <asm/dec/kn02.h>
- #include <asm/dec/kn02ba.h>
- #include <asm/dec/kn02ca.h>
- #include <asm/dec/kn03.h>
- #include <asm/dec/kn230.h>
- #include <asm/dec/ioasic.h>
- #include <asm/dec/ioasic_addrs.h>
- #include <asm/dec/ioasic_ints.h>
- extern void dec_machine_restart(char *command);
- extern void dec_machine_halt(void);
- extern void dec_machine_power_off(void);
- extern void dec_intr_halt(int irq, void *dev_id, struct pt_regs *regs);
- extern asmlinkage void decstation_handle_int(void);
- volatile u32 *ioasic_base;
- unsigned long dec_kn_slot_size;
- /*
- * IRQ routing and priority tables. Priorites are set as follows:
- *
- * KN01 KN230 KN02 KN02-BA KN02-CA KN03
- *
- * MEMORY CPU CPU CPU ASIC CPU CPU
- * RTC CPU CPU CPU ASIC CPU CPU
- * DMA - - - ASIC ASIC ASIC
- * SERIAL0 CPU CPU CSR ASIC ASIC ASIC
- * SERIAL1 - - - ASIC - ASIC
- * SCSI CPU CPU CSR ASIC ASIC ASIC
- * ETHERNET CPU * CSR ASIC ASIC ASIC
- * other - - - ASIC - -
- * TC2 - - CSR CPU ASIC ASIC
- * TC1 - - CSR CPU ASIC ASIC
- * TC0 - - CSR CPU ASIC ASIC
- * other - CPU - CPU ASIC ASIC
- * other - - - - CPU CPU
- *
- * * -- shared with SCSI
- */
- int dec_interrupt[DEC_NR_INTS] = {
- [0 ... DEC_NR_INTS - 1] = -1
- };
- int_ptr cpu_mask_nr_tbl[DEC_MAX_CPU_INTS][2] = {
- { { i: ~0 }, { p: dec_intr_unimplemented } },
- };
- int_ptr asic_mask_nr_tbl[DEC_MAX_ASIC_INTS][2] = {
- { { i: ~0 }, { p: asic_intr_unimplemented } },
- };
- int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU);
- static struct irqaction ioirq = {NULL, 0, 0, "cascade", NULL, NULL};
- static struct irqaction fpuirq = {NULL, 0, 0, "fpu", NULL, NULL};
- static struct irqaction haltirq = {dec_intr_halt, 0, 0, "halt", NULL, NULL};
- void (*board_time_init) (struct irqaction * irq);
- /*
- * enable the periodic interrupts
- */
- static void __init dec_time_init(struct irqaction *irq)
- {
- /*
- * Here we go, enable periodic rtc interrupts.
- */
- #ifndef LOG_2_HZ
- # define LOG_2_HZ 7
- #endif
- CMOS_WRITE(RTC_REF_CLCK_32KHZ | (16 - LOG_2_HZ), RTC_REG_A);
- CMOS_WRITE(CMOS_READ(RTC_REG_B) | RTC_PIE, RTC_REG_B);
- setup_irq(dec_interrupt[DEC_IRQ_RTC], irq);
- }
- /*
- * Bus error (DBE/IBE exceptions and memory interrupts) handling
- * setup. Nothing for now.
- */
- void __init bus_error_init(void)
- {
- }
- void __init decstation_setup(void)
- {
- board_time_init = dec_time_init;
- wbflush_setup();
- _machine_restart = dec_machine_restart;
- _machine_halt = dec_machine_halt;
- _machine_power_off = dec_machine_power_off;
- #ifdef CONFIG_FB
- conswitchp = &dummy_con;
- #endif
- rtc_ops = &dec_rtc_ops;
- }
- /*
- * Machine-specific initialisation for KN01, aka DS2100 (aka Pmin)
- * or DS3100 (aka Pmax).
- */
- static int kn01_interrupt[DEC_NR_INTS] __initdata = {
- [DEC_IRQ_CASCADE] = -1,
- [DEC_IRQ_AB_RECV] = -1,
- [DEC_IRQ_AB_XMIT] = -1,
- [DEC_IRQ_DZ11] = DEC_CPU_IRQ_NR(KN01_CPU_INR_DZ11),
- [DEC_IRQ_ASC] = -1,
- [DEC_IRQ_FLOPPY] = -1,
- [DEC_IRQ_FPU] = DEC_CPU_IRQ_NR(DEC_CPU_INR_FPU),
- [DEC_IRQ_HALT] = -1,
- [DEC_IRQ_ISDN] = -1,
- [DEC_IRQ_LANCE] = DEC_CPU_IRQ_NR(KN01_CPU_INR_LANCE),
- [DEC_IRQ_MEMORY] = DEC_CPU_IRQ_NR(KN01_CPU_INR_MEMORY),
- [DEC_IRQ_PSU] = -1,
- [DEC_IRQ_RTC] = DEC_CPU_IRQ_NR(KN01_CPU_INR_RTC),
- [DEC_IRQ_SCC0] = -1,
- [DEC_IRQ_SCC1] = -1,
- [DEC_IRQ_SII] = DEC_CPU_IRQ_NR(KN01_CPU_INR_SII),
- [DEC_IRQ_TC0] = -1,
- [DEC_IRQ_TC1] = -1,
- [DEC_IRQ_TC2] = -1,
- [DEC_IRQ_TIMER] = -1,
- [DEC_IRQ_VIDEO] = DEC_CPU_IRQ_NR(KN01_CPU_INR_VIDEO),
- [DEC_IRQ_ASC_MERR] = -1,
- [DEC_IRQ_ASC_ERR] = -1,
- [DEC_IRQ_ASC_DMA] = -1,
- [DEC_IRQ_FLOPPY_ERR] = -1,
- [DEC_IRQ_ISDN_ERR] = -1,
- [DEC_IRQ_ISDN_RXDMA] = -1,
- [DEC_IRQ_ISDN_TXDMA] = -1,
- [DEC_IRQ_LANCE_MERR] = -1,
- [DEC_IRQ_SCC0A_RXERR] = -1,
- [DEC_IRQ_SCC0A_RXDMA] = -1,
- [DEC_IRQ_SCC0A_TXERR] = -1,
- [DEC_IRQ_SCC0A_TXDMA] = -1,
- [DEC_IRQ_SCC0B_RXERR] = -1,
- [DEC_IRQ_SCC0B_RXDMA] = -1,
- [DEC_IRQ_SCC0B_TXERR] = -1,
- [DEC_IRQ_SCC0B_TXDMA] = -1,
- [DEC_IRQ_SCC1A_RXERR] = -1,
- [DEC_IRQ_SCC1A_RXDMA] = -1,
- [DEC_IRQ_SCC1A_TXERR] = -1,
- [DEC_IRQ_SCC1A_TXDMA] = -1,
- };
- static int_ptr kn01_cpu_mask_nr_tbl[][2] __initdata = {
- { { i: DEC_CPU_IRQ_MASK(KN01_CPU_INR_MEMORY) },
- { i: DEC_CPU_IRQ_NR(KN01_CPU_INR_MEMORY) } },
- { { i: DEC_CPU_IRQ_MASK(KN01_CPU_INR_RTC) },
- { i: DEC_CPU_IRQ_NR(KN01_CPU_INR_RTC) } },
- { { i: DEC_CPU_IRQ_MASK(KN01_CPU_INR_DZ11) },
- { i: DEC_CPU_IRQ_NR(KN01_CPU_INR_DZ11) } },
- { { i: DEC_CPU_IRQ_MASK(KN01_CPU_INR_SII) },
- { i: DEC_CPU_IRQ_NR(KN01_CPU_INR_SII) } },
- { { i: DEC_CPU_IRQ_MASK(KN01_CPU_INR_LANCE) },
- { i: DEC_CPU_IRQ_NR(KN01_CPU_INR_LANCE) } },
- { { i: DEC_CPU_IRQ_ALL },
- { p: cpu_all_int } },
- };
- void __init dec_init_kn01(void)
- {
- /* Setup some memory addresses. */
- dec_rtc_base = (void *)KN01_RTC_BASE;
- dec_kn_slot_size = KN01_SLOT_SIZE;
- /* IRQ routing. */
- memcpy(&dec_interrupt, &kn01_interrupt,
- sizeof(kn01_interrupt));
- /* CPU IRQ priorities. */
- memcpy(&cpu_mask_nr_tbl, &kn01_cpu_mask_nr_tbl,
- sizeof(kn01_cpu_mask_nr_tbl));
- mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
- } /* dec_init_kn01 */
- /*
- * Machine-specific initialisation for KN230, aka DS5100, aka MIPSmate.
- */
- static int kn230_interrupt[DEC_NR_INTS] __initdata = {
- [DEC_IRQ_CASCADE] = -1,
- [DEC_IRQ_AB_RECV] = -1,
- [DEC_IRQ_AB_XMIT] = -1,
- [DEC_IRQ_DZ11] = DEC_CPU_IRQ_NR(KN230_CPU_INR_DZ11),
- [DEC_IRQ_ASC] = -1,
- [DEC_IRQ_FLOPPY] = -1,
- [DEC_IRQ_FPU] = DEC_CPU_IRQ_NR(DEC_CPU_INR_FPU),
- [DEC_IRQ_HALT] = DEC_CPU_IRQ_NR(KN230_CPU_INR_HALT),
- [DEC_IRQ_ISDN] = -1,
- [DEC_IRQ_LANCE] = DEC_CPU_IRQ_NR(KN230_CPU_INR_LANCE),
- [DEC_IRQ_MEMORY] = DEC_CPU_IRQ_NR(KN230_CPU_INR_MEMORY),
- [DEC_IRQ_PSU] = -1,
- [DEC_IRQ_RTC] = DEC_CPU_IRQ_NR(KN230_CPU_INR_RTC),
- [DEC_IRQ_SCC0] = -1,
- [DEC_IRQ_SCC1] = -1,
- [DEC_IRQ_SII] = DEC_CPU_IRQ_NR(KN230_CPU_INR_SII),
- [DEC_IRQ_TC0] = -1,
- [DEC_IRQ_TC1] = -1,
- [DEC_IRQ_TC2] = -1,
- [DEC_IRQ_TIMER] = -1,
- [DEC_IRQ_VIDEO] = -1,
- [DEC_IRQ_ASC_MERR] = -1,
- [DEC_IRQ_ASC_ERR] = -1,
- [DEC_IRQ_ASC_DMA] = -1,
- [DEC_IRQ_FLOPPY_ERR] = -1,
- [DEC_IRQ_ISDN_ERR] = -1,
- [DEC_IRQ_ISDN_RXDMA] = -1,
- [DEC_IRQ_ISDN_TXDMA] = -1,
- [DEC_IRQ_LANCE_MERR] = -1,
- [DEC_IRQ_SCC0A_RXERR] = -1,
- [DEC_IRQ_SCC0A_RXDMA] = -1,
- [DEC_IRQ_SCC0A_TXERR] = -1,
- [DEC_IRQ_SCC0A_TXDMA] = -1,
- [DEC_IRQ_SCC0B_RXERR] = -1,
- [DEC_IRQ_SCC0B_RXDMA] = -1,
- [DEC_IRQ_SCC0B_TXERR] = -1,
- [DEC_IRQ_SCC0B_TXDMA] = -1,
- [DEC_IRQ_SCC1A_RXERR] = -1,
- [DEC_IRQ_SCC1A_RXDMA] = -1,
- [DEC_IRQ_SCC1A_TXERR] = -1,
- [DEC_IRQ_SCC1A_TXDMA] = -1,
- };
- static int_ptr kn230_cpu_mask_nr_tbl[][2] __initdata = {
- { { i: DEC_CPU_IRQ_MASK(KN230_CPU_INR_MEMORY) },
- { i: DEC_CPU_IRQ_NR(KN230_CPU_INR_MEMORY) } },
- { { i: DEC_CPU_IRQ_MASK(KN230_CPU_INR_RTC) },
- { i: DEC_CPU_IRQ_NR(KN230_CPU_INR_RTC) } },
- { { i: DEC_CPU_IRQ_MASK(KN230_CPU_INR_DZ11) },
- { i: DEC_CPU_IRQ_NR(KN230_CPU_INR_DZ11) } },
- { { i: DEC_CPU_IRQ_MASK(KN230_CPU_INR_SII) },
- { i: DEC_CPU_IRQ_NR(KN230_CPU_INR_SII) } },
- { { i: DEC_CPU_IRQ_ALL },
- { p: cpu_all_int } },
- };
- void __init dec_init_kn230(void)
- {
- /* Setup some memory addresses. */
- dec_rtc_base = (void *)KN01_RTC_BASE;
- dec_kn_slot_size = KN01_SLOT_SIZE;
- /* IRQ routing. */
- memcpy(&dec_interrupt, &kn230_interrupt,
- sizeof(kn230_interrupt));
- /* CPU IRQ priorities. */
- memcpy(&cpu_mask_nr_tbl, &kn230_cpu_mask_nr_tbl,
- sizeof(kn230_cpu_mask_nr_tbl));
- mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
- } /* dec_init_kn230 */
- /*
- * Machine-specific initialisation for KN02, aka DS5000/200, aka 3max.
- */
- static int kn02_interrupt[DEC_NR_INTS] __initdata = {
- [DEC_IRQ_CASCADE] = DEC_CPU_IRQ_NR(KN02_CPU_INR_CASCADE),
- [DEC_IRQ_AB_RECV] = -1,
- [DEC_IRQ_AB_XMIT] = -1,
- [DEC_IRQ_DZ11] = KN02_IRQ_NR(KN02_CSR_INR_DZ11),
- [DEC_IRQ_ASC] = KN02_IRQ_NR(KN02_CSR_INR_ASC),
- [DEC_IRQ_FLOPPY] = -1,
- [DEC_IRQ_FPU] = DEC_CPU_IRQ_NR(DEC_CPU_INR_FPU),
- [DEC_IRQ_HALT] = -1,
- [DEC_IRQ_ISDN] = -1,
- [DEC_IRQ_LANCE] = KN02_IRQ_NR(KN02_CSR_INR_LANCE),
- [DEC_IRQ_MEMORY] = DEC_CPU_IRQ_NR(KN02_CPU_INR_MEMORY),
- [DEC_IRQ_PSU] = -1,
- [DEC_IRQ_RTC] = DEC_CPU_IRQ_NR(KN02_CPU_INR_RTC),
- [DEC_IRQ_SCC0] = -1,
- [DEC_IRQ_SCC1] = -1,
- [DEC_IRQ_SII] = -1,
- [DEC_IRQ_TC0] = KN02_IRQ_NR(KN02_CSR_INR_TC0),
- [DEC_IRQ_TC1] = KN02_IRQ_NR(KN02_CSR_INR_TC1),
- [DEC_IRQ_TC2] = KN02_IRQ_NR(KN02_CSR_INR_TC2),
- [DEC_IRQ_TIMER] = -1,
- [DEC_IRQ_VIDEO] = -1,
- [DEC_IRQ_ASC_MERR] = -1,
- [DEC_IRQ_ASC_ERR] = -1,
- [DEC_IRQ_ASC_DMA] = -1,
- [DEC_IRQ_FLOPPY_ERR] = -1,
- [DEC_IRQ_ISDN_ERR] = -1,
- [DEC_IRQ_ISDN_RXDMA] = -1,
- [DEC_IRQ_ISDN_TXDMA] = -1,
- [DEC_IRQ_LANCE_MERR] = -1,
- [DEC_IRQ_SCC0A_RXERR] = -1,
- [DEC_IRQ_SCC0A_RXDMA] = -1,
- [DEC_IRQ_SCC0A_TXERR] = -1,
- [DEC_IRQ_SCC0A_TXDMA] = -1,
- [DEC_IRQ_SCC0B_RXERR] = -1,
- [DEC_IRQ_SCC0B_RXDMA] = -1,
- [DEC_IRQ_SCC0B_TXERR] = -1,
- [DEC_IRQ_SCC0B_TXDMA] = -1,
- [DEC_IRQ_SCC1A_RXERR] = -1,
- [DEC_IRQ_SCC1A_RXDMA] = -1,
- [DEC_IRQ_SCC1A_TXERR] = -1,
- [DEC_IRQ_SCC1A_TXDMA] = -1,
- };
- static int_ptr kn02_cpu_mask_nr_tbl[][2] __initdata = {
- { { i: DEC_CPU_IRQ_MASK(KN02_CPU_INR_MEMORY) },
- { i: DEC_CPU_IRQ_NR(KN02_CPU_INR_MEMORY) } },
- { { i: DEC_CPU_IRQ_MASK(KN02_CPU_INR_RTC) },
- { i: DEC_CPU_IRQ_NR(KN02_CPU_INR_RTC) } },
- { { i: DEC_CPU_IRQ_MASK(KN02_CPU_INR_CASCADE) },
- { p: kn02_io_int } },
- { { i: DEC_CPU_IRQ_ALL },
- { p: cpu_all_int } },
- };
- static int_ptr kn02_asic_mask_nr_tbl[][2] __initdata = {
- { { i: KN02_IRQ_MASK(KN02_CSR_INR_DZ11) },
- { i: KN02_IRQ_NR(KN02_CSR_INR_DZ11) } },
- { { i: KN02_IRQ_MASK(KN02_CSR_INR_ASC) },
- { i: KN02_IRQ_NR(KN02_CSR_INR_ASC) } },
- { { i: KN02_IRQ_MASK(KN02_CSR_INR_LANCE) },
- { i: KN02_IRQ_NR(KN02_CSR_INR_LANCE) } },
- { { i: KN02_IRQ_MASK(KN02_CSR_INR_TC2) },
- { i: KN02_IRQ_NR(KN02_CSR_INR_TC2) } },
- { { i: KN02_IRQ_MASK(KN02_CSR_INR_TC1) },
- { i: KN02_IRQ_NR(KN02_CSR_INR_TC1) } },
- { { i: KN02_IRQ_MASK(KN02_CSR_INR_TC0) },
- { i: KN02_IRQ_NR(KN02_CSR_INR_TC0) } },
- { { i: KN02_IRQ_ALL },
- { p: kn02_all_int } },
- };
- void __init dec_init_kn02(void)
- {
- /* Setup some memory addresses. */
- dec_rtc_base = (void *)KN02_RTC_BASE;
- dec_kn_slot_size = KN02_SLOT_SIZE;
- /* IRQ routing. */
- memcpy(&dec_interrupt, &kn02_interrupt,
- sizeof(kn02_interrupt));
- /* CPU IRQ priorities. */
- memcpy(&cpu_mask_nr_tbl, &kn02_cpu_mask_nr_tbl,
- sizeof(kn02_cpu_mask_nr_tbl));
- /* KN02 CSR IRQ priorities. */
- memcpy(&asic_mask_nr_tbl, &kn02_asic_mask_nr_tbl,
- sizeof(kn02_asic_mask_nr_tbl));
- mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
- init_kn02_irqs(KN02_IRQ_BASE);
- } /* dec_init_kn02 */
- /*
- * Machine-specific initialisation for KN02-BA, aka DS5000/1xx
- * (xx = 20, 25, 33), aka 3min. Also applies to KN04(-BA), aka
- * DS5000/150, aka 4min.
- */
- static int kn02ba_interrupt[DEC_NR_INTS] __initdata = {
- [DEC_IRQ_CASCADE] = DEC_CPU_IRQ_NR(KN02BA_CPU_INR_CASCADE),
- [DEC_IRQ_AB_RECV] = -1,
- [DEC_IRQ_AB_XMIT] = -1,
- [DEC_IRQ_DZ11] = -1,
- [DEC_IRQ_ASC] = IO_IRQ_NR(KN02BA_IO_INR_ASC),
- [DEC_IRQ_FLOPPY] = -1,
- [DEC_IRQ_FPU] = DEC_CPU_IRQ_NR(DEC_CPU_INR_FPU),
- [DEC_IRQ_HALT] = DEC_CPU_IRQ_NR(KN02BA_CPU_INR_HALT),
- [DEC_IRQ_ISDN] = -1,
- [DEC_IRQ_LANCE] = IO_IRQ_NR(KN02BA_IO_INR_LANCE),
- [DEC_IRQ_MEMORY] = IO_IRQ_NR(KN02BA_IO_INR_MEMORY),
- [DEC_IRQ_PSU] = IO_IRQ_NR(KN02BA_IO_INR_PSU),
- [DEC_IRQ_RTC] = IO_IRQ_NR(KN02BA_IO_INR_RTC),
- [DEC_IRQ_SCC0] = IO_IRQ_NR(KN02BA_IO_INR_SCC0),
- [DEC_IRQ_SCC1] = IO_IRQ_NR(KN02BA_IO_INR_SCC1),
- [DEC_IRQ_SII] = -1,
- [DEC_IRQ_TC0] = DEC_CPU_IRQ_NR(KN02BA_CPU_INR_TC0),
- [DEC_IRQ_TC1] = DEC_CPU_IRQ_NR(KN02BA_CPU_INR_TC1),
- [DEC_IRQ_TC2] = DEC_CPU_IRQ_NR(KN02BA_CPU_INR_TC2),
- [DEC_IRQ_TIMER] = -1,
- [DEC_IRQ_VIDEO] = -1,
- [DEC_IRQ_ASC_MERR] = IO_IRQ_NR(IO_INR_ASC_MERR),
- [DEC_IRQ_ASC_ERR] = IO_IRQ_NR(IO_INR_ASC_ERR),
- [DEC_IRQ_ASC_DMA] = IO_IRQ_NR(IO_INR_ASC_DMA),
- [DEC_IRQ_FLOPPY_ERR] = -1,
- [DEC_IRQ_ISDN_ERR] = -1,
- [DEC_IRQ_ISDN_RXDMA] = -1,
- [DEC_IRQ_ISDN_TXDMA] = -1,
- [DEC_IRQ_LANCE_MERR] = IO_IRQ_NR(IO_INR_LANCE_MERR),
- [DEC_IRQ_SCC0A_RXERR] = IO_IRQ_NR(IO_INR_SCC0A_RXERR),
- [DEC_IRQ_SCC0A_RXDMA] = IO_IRQ_NR(IO_INR_SCC0A_RXDMA),
- [DEC_IRQ_SCC0A_TXERR] = IO_IRQ_NR(IO_INR_SCC0A_TXERR),
- [DEC_IRQ_SCC0A_TXDMA] = IO_IRQ_NR(IO_INR_SCC0A_TXDMA),
- [DEC_IRQ_SCC0B_RXERR] = -1,
- [DEC_IRQ_SCC0B_RXDMA] = -1,
- [DEC_IRQ_SCC0B_TXERR] = -1,
- [DEC_IRQ_SCC0B_TXDMA] = -1,
- [DEC_IRQ_SCC1A_RXERR] = IO_IRQ_NR(IO_INR_SCC1A_RXERR),
- [DEC_IRQ_SCC1A_RXDMA] = IO_IRQ_NR(IO_INR_SCC1A_RXDMA),
- [DEC_IRQ_SCC1A_TXERR] = IO_IRQ_NR(IO_INR_SCC1A_TXERR),
- [DEC_IRQ_SCC1A_TXDMA] = IO_IRQ_NR(IO_INR_SCC1A_TXDMA),
- };
- static int_ptr kn02ba_cpu_mask_nr_tbl[][2] __initdata = {
- { { i: DEC_CPU_IRQ_MASK(KN02BA_CPU_INR_CASCADE) },
- { p: kn02xa_io_int } },
- { { i: DEC_CPU_IRQ_MASK(KN02BA_CPU_INR_TC2) },
- { i: DEC_CPU_IRQ_NR(KN02BA_CPU_INR_TC2) } },
- { { i: DEC_CPU_IRQ_MASK(KN02BA_CPU_INR_TC1) },
- { i: DEC_CPU_IRQ_NR(KN02BA_CPU_INR_TC1) } },
- { { i: DEC_CPU_IRQ_MASK(KN02BA_CPU_INR_TC0) },
- { i: DEC_CPU_IRQ_NR(KN02BA_CPU_INR_TC0) } },
- { { i: DEC_CPU_IRQ_ALL },
- { p: cpu_all_int } },
- };
- static int_ptr kn02ba_asic_mask_nr_tbl[][2] __initdata = {
- { { i: IO_IRQ_MASK(KN02BA_IO_INR_MEMORY) },
- { i: IO_IRQ_NR(KN02BA_IO_INR_MEMORY) } },
- { { i: IO_IRQ_MASK(KN02BA_IO_INR_RTC) },
- { i: IO_IRQ_NR(KN02BA_IO_INR_RTC) } },
- { { i: IO_IRQ_DMA },
- { p: asic_dma_int } },
- { { i: IO_IRQ_MASK(KN02BA_IO_INR_SCC0) },
- { i: IO_IRQ_NR(KN02BA_IO_INR_SCC0) } },
- { { i: IO_IRQ_MASK(KN02BA_IO_INR_SCC1) },
- { i: IO_IRQ_NR(KN02BA_IO_INR_SCC1) } },
- { { i: IO_IRQ_MASK(KN02BA_IO_INR_ASC) },
- { i: IO_IRQ_NR(KN02BA_IO_INR_ASC) } },
- { { i: IO_IRQ_MASK(KN02BA_IO_INR_LANCE) },
- { i: IO_IRQ_NR(KN02BA_IO_INR_LANCE) } },
- { { i: IO_IRQ_ALL },
- { p: asic_all_int } },
- };
- void __init dec_init_kn02ba(void)
- {
- /* Setup some memory addresses. */
- ioasic_base = (void *)KN02BA_IOASIC_BASE;
- dec_rtc_base = (void *)KN02BA_RTC_BASE;
- dec_kn_slot_size = IOASIC_SLOT_SIZE;
- /* IRQ routing. */
- memcpy(&dec_interrupt, &kn02ba_interrupt,
- sizeof(kn02ba_interrupt));
- /* CPU IRQ priorities. */
- memcpy(&cpu_mask_nr_tbl, &kn02ba_cpu_mask_nr_tbl,
- sizeof(kn02ba_cpu_mask_nr_tbl));
- /* I/O ASIC IRQ priorities. */
- memcpy(&asic_mask_nr_tbl, &kn02ba_asic_mask_nr_tbl,
- sizeof(kn02ba_asic_mask_nr_tbl));
- mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
- init_ioasic_irqs(IO_IRQ_BASE);
- } /* dec_init_kn02ba */
- /*
- * Machine-specific initialisation for KN02-CA, aka DS5000/xx,
- * (xx = 20, 25, 33), aka MAXine. Also applies to KN04(-CA), aka
- * DS5000/50, aka 4MAXine.
- */
- static int kn02ca_interrupt[DEC_NR_INTS] __initdata = {
- [DEC_IRQ_CASCADE] = DEC_CPU_IRQ_NR(KN02CA_CPU_INR_CASCADE),
- [DEC_IRQ_AB_RECV] = IO_IRQ_NR(KN02CA_IO_INR_AB_RECV),
- [DEC_IRQ_AB_XMIT] = IO_IRQ_NR(KN02CA_IO_INR_AB_XMIT),
- [DEC_IRQ_DZ11] = -1,
- [DEC_IRQ_ASC] = IO_IRQ_NR(KN02CA_IO_INR_ASC),
- [DEC_IRQ_FLOPPY] = IO_IRQ_NR(KN02CA_IO_INR_FLOPPY),
- [DEC_IRQ_FPU] = DEC_CPU_IRQ_NR(DEC_CPU_INR_FPU),
- [DEC_IRQ_HALT] = DEC_CPU_IRQ_NR(KN02CA_CPU_INR_HALT),
- [DEC_IRQ_ISDN] = IO_IRQ_NR(KN02CA_IO_INR_ISDN),
- [DEC_IRQ_LANCE] = IO_IRQ_NR(KN02CA_IO_INR_LANCE),
- [DEC_IRQ_MEMORY] = DEC_CPU_IRQ_NR(KN02CA_CPU_INR_MEMORY),
- [DEC_IRQ_PSU] = -1,
- [DEC_IRQ_RTC] = DEC_CPU_IRQ_NR(KN02CA_CPU_INR_RTC),
- [DEC_IRQ_SCC0] = IO_IRQ_NR(KN02CA_IO_INR_SCC0),
- [DEC_IRQ_SCC1] = -1,
- [DEC_IRQ_SII] = -1,
- [DEC_IRQ_TC0] = IO_IRQ_NR(KN02CA_IO_INR_TC0),
- [DEC_IRQ_TC1] = IO_IRQ_NR(KN02CA_IO_INR_TC1),
- [DEC_IRQ_TC2] = -1,
- [DEC_IRQ_TIMER] = DEC_CPU_IRQ_NR(KN02CA_CPU_INR_TIMER),
- [DEC_IRQ_VIDEO] = IO_IRQ_NR(KN02CA_IO_INR_VIDEO),
- [DEC_IRQ_ASC_MERR] = IO_IRQ_NR(IO_INR_ASC_MERR),
- [DEC_IRQ_ASC_ERR] = IO_IRQ_NR(IO_INR_ASC_ERR),
- [DEC_IRQ_ASC_DMA] = IO_IRQ_NR(IO_INR_ASC_DMA),
- [DEC_IRQ_FLOPPY_ERR] = IO_IRQ_NR(IO_INR_FLOPPY_ERR),
- [DEC_IRQ_ISDN_ERR] = IO_IRQ_NR(IO_INR_ISDN_ERR),
- [DEC_IRQ_ISDN_RXDMA] = IO_IRQ_NR(IO_INR_ISDN_RXDMA),
- [DEC_IRQ_ISDN_TXDMA] = IO_IRQ_NR(IO_INR_ISDN_TXDMA),
- [DEC_IRQ_LANCE_MERR] = IO_IRQ_NR(IO_INR_LANCE_MERR),
- [DEC_IRQ_SCC0A_RXERR] = IO_IRQ_NR(IO_INR_SCC0A_RXERR),
- [DEC_IRQ_SCC0A_RXDMA] = IO_IRQ_NR(IO_INR_SCC0A_RXDMA),
- [DEC_IRQ_SCC0A_TXERR] = IO_IRQ_NR(IO_INR_SCC0A_TXERR),
- [DEC_IRQ_SCC0A_TXDMA] = IO_IRQ_NR(IO_INR_SCC0A_TXDMA),
- [DEC_IRQ_SCC0B_RXERR] = IO_IRQ_NR(IO_INR_SCC0B_RXERR),
- [DEC_IRQ_SCC0B_RXDMA] = IO_IRQ_NR(IO_INR_SCC0B_RXDMA),
- [DEC_IRQ_SCC0B_TXERR] = IO_IRQ_NR(IO_INR_SCC0B_TXERR),
- [DEC_IRQ_SCC0B_TXDMA] = IO_IRQ_NR(IO_INR_SCC0B_TXDMA),
- [DEC_IRQ_SCC1A_RXERR] = -1,
- [DEC_IRQ_SCC1A_RXDMA] = -1,
- [DEC_IRQ_SCC1A_TXERR] = -1,
- [DEC_IRQ_SCC1A_TXDMA] = -1,
- };
- static int_ptr kn02ca_cpu_mask_nr_tbl[][2] __initdata = {
- { { i: DEC_CPU_IRQ_MASK(KN02CA_CPU_INR_MEMORY) },
- { i: DEC_CPU_IRQ_NR(KN02CA_CPU_INR_MEMORY) } },
- { { i: DEC_CPU_IRQ_MASK(KN02CA_CPU_INR_RTC) },
- { i: DEC_CPU_IRQ_NR(KN02CA_CPU_INR_RTC) } },
- { { i: DEC_CPU_IRQ_MASK(KN02CA_CPU_INR_CASCADE) },
- { p: kn02xa_io_int } },
- { { i: DEC_CPU_IRQ_ALL },
- { p: cpu_all_int } },
- };
- static int_ptr kn02ca_asic_mask_nr_tbl[][2] __initdata = {
- { { i: IO_IRQ_DMA },
- { p: asic_dma_int } },
- { { i: IO_IRQ_MASK(KN02CA_IO_INR_SCC0) },
- { i: IO_IRQ_NR(KN02CA_IO_INR_SCC0) } },
- { { i: IO_IRQ_MASK(KN02CA_IO_INR_ASC) },
- { i: IO_IRQ_NR(KN02CA_IO_INR_ASC) } },
- { { i: IO_IRQ_MASK(KN02CA_IO_INR_LANCE) },
- { i: IO_IRQ_NR(KN02CA_IO_INR_LANCE) } },
- { { i: IO_IRQ_MASK(KN02CA_IO_INR_TC1) },
- { i: IO_IRQ_NR(KN02CA_IO_INR_TC1) } },
- { { i: IO_IRQ_MASK(KN02CA_IO_INR_TC0) },
- { i: IO_IRQ_NR(KN02CA_IO_INR_TC0) } },
- { { i: IO_IRQ_ALL },
- { p: asic_all_int } },
- };
- void __init dec_init_kn02ca(void)
- {
- /* Setup some memory addresses. */
- ioasic_base = (void *)KN02CA_IOASIC_BASE;
- dec_rtc_base = (void *)KN02CA_RTC_BASE;
- dec_kn_slot_size = IOASIC_SLOT_SIZE;
- /* IRQ routing. */
- memcpy(&dec_interrupt, &kn02ca_interrupt,
- sizeof(kn02ca_interrupt));
- /* CPU IRQ priorities. */
- memcpy(&cpu_mask_nr_tbl, &kn02ca_cpu_mask_nr_tbl,
- sizeof(kn02ca_cpu_mask_nr_tbl));
- /* I/O ASIC IRQ priorities. */
- memcpy(&asic_mask_nr_tbl, &kn02ca_asic_mask_nr_tbl,
- sizeof(kn02ca_asic_mask_nr_tbl));
- mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
- init_ioasic_irqs(IO_IRQ_BASE);
- } /* dec_init_kn02ca */
- /*
- * Machine-specific initialisation for KN03, aka DS5000/240,
- * aka 3max+ and DS5900, aka BIGmax. Also applies to KN05, aka
- * DS5000/260, aka 4max+ and DS5900-260.
- */
- static int kn03_interrupt[DEC_NR_INTS] __initdata = {
- [DEC_IRQ_CASCADE] = DEC_CPU_IRQ_NR(KN03_CPU_INR_CASCADE),
- [DEC_IRQ_AB_RECV] = -1,
- [DEC_IRQ_AB_XMIT] = -1,
- [DEC_IRQ_DZ11] = -1,
- [DEC_IRQ_ASC] = IO_IRQ_NR(KN03_IO_INR_ASC),
- [DEC_IRQ_FLOPPY] = -1,
- [DEC_IRQ_FPU] = DEC_CPU_IRQ_NR(DEC_CPU_INR_FPU),
- [DEC_IRQ_HALT] = DEC_CPU_IRQ_NR(KN03_CPU_INR_HALT),
- [DEC_IRQ_ISDN] = -1,
- [DEC_IRQ_LANCE] = IO_IRQ_NR(KN03_IO_INR_LANCE),
- [DEC_IRQ_MEMORY] = DEC_CPU_IRQ_NR(KN03_CPU_INR_MEMORY),
- [DEC_IRQ_PSU] = IO_IRQ_NR(KN03_IO_INR_PSU),
- [DEC_IRQ_RTC] = DEC_CPU_IRQ_NR(KN03_CPU_INR_RTC),
- [DEC_IRQ_SCC0] = IO_IRQ_NR(KN03_IO_INR_SCC0),
- [DEC_IRQ_SCC1] = IO_IRQ_NR(KN03_IO_INR_SCC1),
- [DEC_IRQ_SII] = -1,
- [DEC_IRQ_TC0] = IO_IRQ_NR(KN03_IO_INR_TC0),
- [DEC_IRQ_TC1] = IO_IRQ_NR(KN03_IO_INR_TC1),
- [DEC_IRQ_TC2] = IO_IRQ_NR(KN03_IO_INR_TC2),
- [DEC_IRQ_TIMER] = -1,
- [DEC_IRQ_VIDEO] = -1,
- [DEC_IRQ_ASC_MERR] = IO_IRQ_NR(IO_INR_ASC_MERR),
- [DEC_IRQ_ASC_ERR] = IO_IRQ_NR(IO_INR_ASC_ERR),
- [DEC_IRQ_ASC_DMA] = IO_IRQ_NR(IO_INR_ASC_DMA),
- [DEC_IRQ_FLOPPY_ERR] = -1,
- [DEC_IRQ_ISDN_ERR] = -1,
- [DEC_IRQ_ISDN_RXDMA] = -1,
- [DEC_IRQ_ISDN_TXDMA] = -1,
- [DEC_IRQ_LANCE_MERR] = IO_IRQ_NR(IO_INR_LANCE_MERR),
- [DEC_IRQ_SCC0A_RXERR] = IO_IRQ_NR(IO_INR_SCC0A_RXERR),
- [DEC_IRQ_SCC0A_RXDMA] = IO_IRQ_NR(IO_INR_SCC0A_RXDMA),
- [DEC_IRQ_SCC0A_TXERR] = IO_IRQ_NR(IO_INR_SCC0A_TXERR),
- [DEC_IRQ_SCC0A_TXDMA] = IO_IRQ_NR(IO_INR_SCC0A_TXDMA),
- [DEC_IRQ_SCC0B_RXERR] = -1,
- [DEC_IRQ_SCC0B_RXDMA] = -1,
- [DEC_IRQ_SCC0B_TXERR] = -1,
- [DEC_IRQ_SCC0B_TXDMA] = -1,
- [DEC_IRQ_SCC1A_RXERR] = IO_IRQ_NR(IO_INR_SCC1A_RXERR),
- [DEC_IRQ_SCC1A_RXDMA] = IO_IRQ_NR(IO_INR_SCC1A_RXDMA),
- [DEC_IRQ_SCC1A_TXERR] = IO_IRQ_NR(IO_INR_SCC1A_TXERR),
- [DEC_IRQ_SCC1A_TXDMA] = IO_IRQ_NR(IO_INR_SCC1A_TXDMA),
- };
- static int_ptr kn03_cpu_mask_nr_tbl[][2] __initdata = {
- { { i: DEC_CPU_IRQ_MASK(KN03_CPU_INR_MEMORY) },
- { i: DEC_CPU_IRQ_NR(KN03_CPU_INR_MEMORY) } },
- { { i: DEC_CPU_IRQ_MASK(KN03_CPU_INR_RTC) },
- { i: DEC_CPU_IRQ_NR(KN03_CPU_INR_RTC) } },
- { { i: DEC_CPU_IRQ_MASK(KN03_CPU_INR_CASCADE) },
- { p: kn03_io_int } },
- { { i: DEC_CPU_IRQ_ALL },
- { p: cpu_all_int } },
- };
- static int_ptr kn03_asic_mask_nr_tbl[][2] __initdata = {
- { { i: IO_IRQ_DMA },
- { p: asic_dma_int } },
- { { i: IO_IRQ_MASK(KN03_IO_INR_SCC0) },
- { i: IO_IRQ_NR(KN03_IO_INR_SCC0) } },
- { { i: IO_IRQ_MASK(KN03_IO_INR_SCC1) },
- { i: IO_IRQ_NR(KN03_IO_INR_SCC1) } },
- { { i: IO_IRQ_MASK(KN03_IO_INR_ASC) },
- { i: IO_IRQ_NR(KN03_IO_INR_ASC) } },
- { { i: IO_IRQ_MASK(KN03_IO_INR_LANCE) },
- { i: IO_IRQ_NR(KN03_IO_INR_LANCE) } },
- { { i: IO_IRQ_MASK(KN03_IO_INR_TC2) },
- { i: IO_IRQ_NR(KN03_IO_INR_TC2) } },
- { { i: IO_IRQ_MASK(KN03_IO_INR_TC1) },
- { i: IO_IRQ_NR(KN03_IO_INR_TC1) } },
- { { i: IO_IRQ_MASK(KN03_IO_INR_TC0) },
- { i: IO_IRQ_NR(KN03_IO_INR_TC0) } },
- { { i: IO_IRQ_ALL },
- { p: asic_all_int } },
- };
- void __init dec_init_kn03(void)
- {
- /* Setup some memory addresses. */
- ioasic_base = (void *)KN03_IOASIC_BASE;
- dec_rtc_base = (void *)KN03_RTC_BASE;
- dec_kn_slot_size = IOASIC_SLOT_SIZE;
- /* IRQ routing. */
- memcpy(&dec_interrupt, &kn03_interrupt,
- sizeof(kn03_interrupt));
- /* CPU IRQ priorities. */
- memcpy(&cpu_mask_nr_tbl, &kn03_cpu_mask_nr_tbl,
- sizeof(kn03_cpu_mask_nr_tbl));
- /* I/O ASIC IRQ priorities. */
- memcpy(&asic_mask_nr_tbl, &kn03_asic_mask_nr_tbl,
- sizeof(kn03_asic_mask_nr_tbl));
- mips_cpu_irq_init(DEC_CPU_IRQ_BASE);
- init_ioasic_irqs(IO_IRQ_BASE);
- } /* dec_init_kn03 */
- void __init init_IRQ(void)
- {
- switch (mips_machtype) {
- case MACH_DS23100: /* DS2100/DS3100 Pmin/Pmax */
- dec_init_kn01();
- break;
- case MACH_DS5100: /* DS5100 MIPSmate */
- dec_init_kn230();
- break;
- case MACH_DS5000_200: /* DS5000/200 3max */
- dec_init_kn02();
- break;
- case MACH_DS5000_1XX: /* DS5000/1xx 3min */
- dec_init_kn02ba();
- break;
- case MACH_DS5000_2X0: /* DS5000/240 3max+ */
- dec_init_kn03();
- break;
- case MACH_DS5000_XX: /* Personal DS5000/xx */
- dec_init_kn02ca();
- break;
- case MACH_DS5800: /* DS5800 Isis */
- panic("Don't know how to set this up!");
- break;
- case MACH_DS5400: /* DS5400 MIPSfair */
- panic("Don't know how to set this up!");
- break;
- case MACH_DS5500: /* DS5500 MIPSfair-2 */
- panic("Don't know how to set this up!");
- break;
- }
- set_except_vector(0, decstation_handle_int);
- /* Free the FPU interrupt if the exception is present. */
- if (!(mips_cpu.options & MIPS_CPU_NOFPUEX)) {
- cpu_fpu_mask = 0;
- dec_interrupt[DEC_IRQ_FPU] = -1;
- }
- /* Register board interrupts: FPU and cascade. */
- if (dec_interrupt[DEC_IRQ_FPU] >= 0)
- setup_irq(dec_interrupt[DEC_IRQ_FPU], &fpuirq);
- if (dec_interrupt[DEC_IRQ_CASCADE] >= 0)
- setup_irq(dec_interrupt[DEC_IRQ_CASCADE], &ioirq);
- /* Register the HALT interrupt. */
- if (dec_interrupt[DEC_IRQ_HALT] >= 0)
- setup_irq(dec_interrupt[DEC_IRQ_HALT], &haltirq);
- }
- EXPORT_SYMBOL(ioasic_base);
- EXPORT_SYMBOL(dec_rtc_base);
- EXPORT_SYMBOL(dec_kn_slot_size);
- EXPORT_SYMBOL(dec_interrupt);