diff options
Diffstat (limited to 'arch/mips/ddb5xxx/ddb5074/irq.c')
| -rw-r--r-- | arch/mips/ddb5xxx/ddb5074/irq.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/arch/mips/ddb5xxx/ddb5074/irq.c b/arch/mips/ddb5xxx/ddb5074/irq.c deleted file mode 100644 index 60c087b..0000000 --- a/arch/mips/ddb5xxx/ddb5074/irq.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * arch/mips/ddb5074/irq.c -- NEC DDB Vrc-5074 interrupt routines - * - * Copyright (C) 2000 Geert Uytterhoeven <geert@sonycom.com> - * Sony Software Development Center Europe (SDCE), Brussels - */ -#include <linux/init.h> -#include <linux/irq.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> - -#include <asm/i8259.h> -#include <asm/io.h> -#include <asm/irq_cpu.h> -#include <asm/ptrace.h> -#include <asm/nile4.h> -#include <asm/ddb5xxx/ddb5xxx.h> -#include <asm/ddb5xxx/ddb5074.h> - - -static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL }; - -#define M1543_PNP_CONFIG 0x03f0 /* PnP Config Port */ -#define M1543_PNP_INDEX 0x03f0 /* PnP Index Port */ -#define M1543_PNP_DATA 0x03f1 /* PnP Data Port */ - -#define M1543_PNP_ALT_CONFIG 0x0370 /* Alternative PnP Config Port */ -#define M1543_PNP_ALT_INDEX 0x0370 /* Alternative PnP Index Port */ -#define M1543_PNP_ALT_DATA 0x0371 /* Alternative PnP Data Port */ - -#define M1543_INT1_MASTER_CTRL 0x0020 /* INT_1 (master) Control Register */ -#define M1543_INT1_MASTER_MASK 0x0021 /* INT_1 (master) Mask Register */ - -#define M1543_INT1_SLAVE_CTRL 0x00a0 /* INT_1 (slave) Control Register */ -#define M1543_INT1_SLAVE_MASK 0x00a1 /* INT_1 (slave) Mask Register */ - -#define M1543_INT1_MASTER_ELCR 0x04d0 /* INT_1 (master) Edge/Level Control */ -#define M1543_INT1_SLAVE_ELCR 0x04d1 /* INT_1 (slave) Edge/Level Control */ - - -static void m1543_irq_setup(void) -{ - /* - * The ALI M1543 has 13 interrupt inputs, IRQ1..IRQ13. Not all - * the possible IO sources in the M1543 are in use by us. We will - * use the following mapping: - * - * IRQ1 - keyboard (default set by M1543) - * IRQ3 - reserved for UART B (default set by M1543) (note that - * the schematics for the DDB Vrc-5074 board seem to - * indicate that IRQ3 is connected to the DS1386 - * watchdog timer interrupt output so we might have - * a conflict) - * IRQ4 - reserved for UART A (default set by M1543) - * IRQ5 - parallel (default set by M1543) - * IRQ8 - DS1386 time of day (RTC) interrupt - * IRQ12 - mouse - */ - - /* - * Assing mouse interrupt to IRQ12 - */ - - /* Enter configuration mode */ - outb(0x51, M1543_PNP_CONFIG); - outb(0x23, M1543_PNP_CONFIG); - - /* Select logical device 7 (Keyboard) */ - outb(0x07, M1543_PNP_INDEX); - outb(0x07, M1543_PNP_DATA); - - /* Select IRQ12 */ - outb(0x72, M1543_PNP_INDEX); - outb(0x0c, M1543_PNP_DATA); - - outb(0x30, M1543_PNP_INDEX); - printk("device 7, 0x30: %02x\n",inb(M1543_PNP_DATA)); - - outb(0x70, M1543_PNP_INDEX); - printk("device 7, 0x70: %02x\n",inb(M1543_PNP_DATA)); - - /* Leave configration mode */ - outb(0xbb, M1543_PNP_CONFIG); - - -} - -static void ddb_local0_irqdispatch(struct pt_regs *regs) -{ - u32 mask; - int nile4_irq; - - mask = nile4_get_irq_stat(0); - - /* Handle the timer interrupt first */ -#if 0 - if (mask & (1 << NILE4_INT_GPT)) { - do_IRQ(nile4_to_irq(NILE4_INT_GPT), regs); - mask &= ~(1 << NILE4_INT_GPT); - } -#endif - for (nile4_irq = 0; mask; nile4_irq++, mask >>= 1) - if (mask & 1) { - if (nile4_irq == NILE4_INT_INTE) { - int i8259_irq; - - nile4_clear_irq(NILE4_INT_INTE); - i8259_irq = nile4_i8259_iack(); - do_IRQ(i8259_irq, regs); - } else - do_IRQ(nile4_to_irq(nile4_irq), regs); - - } -} - -static void ddb_local1_irqdispatch(void) -{ - printk("ddb_local1_irqdispatch called\n"); -} - -static void ddb_buserror_irq(void) -{ - printk("ddb_buserror_irq called\n"); -} - -static void ddb_8254timer_irq(void) -{ - printk("ddb_8254timer_irq called\n"); -} - -asmlinkage void plat_irq_dispatch(struct pt_regs *regs) -{ - unsigned int pending = read_c0_cause() & read_c0_status(); - - if (pending & CAUSEF_IP2) - ddb_local0_irqdispatch(regs); - else if (pending & CAUSEF_IP3) - ddb_local1_irqdispatch(); - else if (pending & CAUSEF_IP6) - ddb_buserror_irq(); - else if (pending & (CAUSEF_IP4 | CAUSEF_IP5)) - ddb_8254timer_irq(); -} - -void __init arch_init_irq(void) -{ - /* setup cascade interrupts */ - setup_irq(NILE4_IRQ_BASE + NILE4_INT_INTE, &irq_cascade); - setup_irq(CPU_IRQ_BASE + CPU_NILE4_CASCADE, &irq_cascade); - - nile4_irq_setup(NILE4_IRQ_BASE); - m1543_irq_setup(); - init_i8259_irqs(); - - - printk("CPU_IRQ_BASE: %d\n",CPU_IRQ_BASE); - - mips_cpu_irq_init(CPU_IRQ_BASE); - - printk("enabling 8259 cascade\n"); - - ddb5074_led_hex(0); - - /* Enable the interrupt cascade */ - nile4_enable_irq(NILE4_IRQ_BASE+IRQ_I8259_CASCADE); -} |