diff options
Diffstat (limited to 'arch/mips/ddb5xxx/ddb5476/irq.c')
| -rw-r--r-- | arch/mips/ddb5xxx/ddb5476/irq.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/arch/mips/ddb5xxx/ddb5476/irq.c b/arch/mips/ddb5xxx/ddb5476/irq.c deleted file mode 100644 index 7583a1f3071..00000000000 --- a/arch/mips/ddb5xxx/ddb5476/irq.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * arch/mips/ddb5476/irq.c -- NEC DDB Vrc-5476 interrupt routines - * - * Copyright (C) 2000 Geert Uytterhoeven <geert@sonycom.com> - * Sony Software Development Center Europe (SDCE), Brussels - * - * Re-write the whole thing to use new irq.c file. - * Copyright (C) 2001 MontaVista Software Inc. - * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net - * - */ -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/interrupt.h> - -#include <asm/i8259.h> -#include <asm/io.h> -#include <asm/ptrace.h> - -#include <asm/ddb5xxx/ddb5xxx.h> - -#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-5476 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 - * IRQ9 - USB (hardwired in ddb_setup) - * IRQ10 - PMU (hardwired in ddb_setup) - * IRQ12 - mouse - * IRQ14,15 - IDE controller (need to be confirmed, jsun) - */ - - /* - * 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); - - /* Leave configration mode */ - outb(0xbb, M1543_PNP_CONFIG); -} - -static void nile4_irq_setup(void) -{ - int i; - - /* Map all interrupts to CPU int #0 (IP2) */ - nile4_map_irq_all(0); - - /* PCI INTA#-E# must be level triggered */ - nile4_set_pci_irq_level_or_edge(0, 1); - nile4_set_pci_irq_level_or_edge(1, 1); - nile4_set_pci_irq_level_or_edge(2, 1); - nile4_set_pci_irq_level_or_edge(3, 1); - - /* PCI INTA#, B#, D# must be active low, INTC# must be active high */ - nile4_set_pci_irq_polarity(0, 0); - nile4_set_pci_irq_polarity(1, 0); - nile4_set_pci_irq_polarity(2, 1); - nile4_set_pci_irq_polarity(3, 0); - - for (i = 0; i < 16; i++) - nile4_clear_irq(i); - - /* Enable CPU int #0 */ - nile4_enable_irq_output(0); - - /* memory resource acquire in ddb_setup */ -} - -static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL }; -static struct irqaction irq_error = { no_action, 0, CPU_MASK_NONE, "error", NULL, NULL }; - -extern int setup_irq(unsigned int irq, struct irqaction *irqaction); -extern void mips_cpu_irq_init(u32 irq_base); -extern void vrc5476_irq_init(u32 irq_base); - -extern void vrc5476_irq_dispatch(struct pt_regs *regs); - -asmlinkage void plat_irq_dispatch(struct pt_regs *regs) -{ - unsigned int pending = read_c0_cause() & read_c0_status(); - - if (pending & STATUSF_IP7) - do_IRQ(CPU_IRQ_BASE + 7, regs); - else if (pending & STATUSF_IP2) - vrc5476_irq_dispatch(regs); - else if (pending & STATUSF_IP3) - do_IRQ(CPU_IRQ_BASE + 3, regs); - else if (pending & STATUSF_IP4) - do_IRQ(CPU_IRQ_BASE + 4, regs); - else if (pending & STATUSF_IP5) - do_IRQ(CPU_IRQ_BASE + 5, regs); - else if (pending & STATUSF_IP6) - do_IRQ(CPU_IRQ_BASE + 6, regs); - else if (pending & STATUSF_IP0) - do_IRQ(CPU_IRQ_BASE, regs); - else if (pending & STATUSF_IP1) - do_IRQ(CPU_IRQ_BASE + 1, regs); - - vrc5476_irq_dispatch(regs); -} - -void __init arch_init_irq(void) -{ - /* hardware initialization */ - nile4_irq_setup(); - m1543_irq_setup(); - - /* controller setup */ - init_i8259_irqs(); - vrc5476_irq_init(VRC5476_IRQ_BASE); - mips_cpu_irq_init(CPU_IRQ_BASE); - - /* setup cascade interrupts */ - setup_irq(VRC5476_IRQ_BASE + VRC5476_I8259_CASCADE, &irq_cascade); - setup_irq(CPU_IRQ_BASE + CPU_VRC5476_CASCADE, &irq_cascade); - - /* setup error interrupts for debugging */ - setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_CPCE, &irq_error); - setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_CNTD, &irq_error); - setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_MCE, &irq_error); - setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_LBRT, &irq_error); - setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCIS, &irq_error); - setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCI, &irq_error); -} |