summaryrefslogtreecommitdiffstats
path: root/arch/mips/au1000/common/irq.c
diff options
context:
space:
mode:
authorRalf Baechle <ralf@linux-mips.org>2008-09-16 19:12:16 +0200
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 16:18:50 +0100
commite8c7c482347574ecdd45c43e32c332d5fc2ece61 (patch)
treec741aa6cdb4e897df9f9476d83a816a7a2b058dd /arch/mips/au1000/common/irq.c
parent8d2d91e86b4153cc2305ec86fe908048f459ff7f (diff)
downloadlinux-stable-e8c7c482347574ecdd45c43e32c332d5fc2ece61.tar.gz
linux-stable-e8c7c482347574ecdd45c43e32c332d5fc2ece61.tar.bz2
linux-stable-e8c7c482347574ecdd45c43e32c332d5fc2ece61.zip
MIPS: Alchemy: rename directory
It's more than the au1000 these days. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/au1000/common/irq.c')
-rw-r--r--arch/mips/au1000/common/irq.c596
1 files changed, 0 insertions, 596 deletions
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
deleted file mode 100644
index 40c6ceceb5f9..000000000000
--- a/arch/mips/au1000/common/irq.c
+++ /dev/null
@@ -1,596 +0,0 @@
-/*
- * Copyright 2001, 2007-2008 MontaVista Software Inc.
- * Author: MontaVista Software, Inc. <source@mvista.com>
- *
- * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/bitops.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-#include <asm/mach-au1x00/au1000.h>
-#ifdef CONFIG_MIPS_PB1000
-#include <asm/mach-pb1x00/pb1000.h>
-#endif
-
-#define EXT_INTC0_REQ0 2 /* IP 2 */
-#define EXT_INTC0_REQ1 3 /* IP 3 */
-#define EXT_INTC1_REQ0 4 /* IP 4 */
-#define EXT_INTC1_REQ1 5 /* IP 5 */
-#define MIPS_TIMER_IP 7 /* IP 7 */
-
-void (*board_init_irq)(void) __initdata = NULL;
-
-static DEFINE_SPINLOCK(irq_lock);
-
-#ifdef CONFIG_PM
-
-/*
- * Save/restore the interrupt controller state.
- * Called from the save/restore core registers as part of the
- * au_sleep function in power.c.....maybe I should just pm_register()
- * them instead?
- */
-static unsigned int sleep_intctl_config0[2];
-static unsigned int sleep_intctl_config1[2];
-static unsigned int sleep_intctl_config2[2];
-static unsigned int sleep_intctl_src[2];
-static unsigned int sleep_intctl_assign[2];
-static unsigned int sleep_intctl_wake[2];
-static unsigned int sleep_intctl_mask[2];
-
-void save_au1xxx_intctl(void)
-{
- sleep_intctl_config0[0] = au_readl(IC0_CFG0RD);
- sleep_intctl_config1[0] = au_readl(IC0_CFG1RD);
- sleep_intctl_config2[0] = au_readl(IC0_CFG2RD);
- sleep_intctl_src[0] = au_readl(IC0_SRCRD);
- sleep_intctl_assign[0] = au_readl(IC0_ASSIGNRD);
- sleep_intctl_wake[0] = au_readl(IC0_WAKERD);
- sleep_intctl_mask[0] = au_readl(IC0_MASKRD);
-
- sleep_intctl_config0[1] = au_readl(IC1_CFG0RD);
- sleep_intctl_config1[1] = au_readl(IC1_CFG1RD);
- sleep_intctl_config2[1] = au_readl(IC1_CFG2RD);
- sleep_intctl_src[1] = au_readl(IC1_SRCRD);
- sleep_intctl_assign[1] = au_readl(IC1_ASSIGNRD);
- sleep_intctl_wake[1] = au_readl(IC1_WAKERD);
- sleep_intctl_mask[1] = au_readl(IC1_MASKRD);
-}
-
-/*
- * For most restore operations, we clear the entire register and
- * then set the bits we found during the save.
- */
-void restore_au1xxx_intctl(void)
-{
- au_writel(0xffffffff, IC0_MASKCLR); au_sync();
-
- au_writel(0xffffffff, IC0_CFG0CLR); au_sync();
- au_writel(sleep_intctl_config0[0], IC0_CFG0SET); au_sync();
- au_writel(0xffffffff, IC0_CFG1CLR); au_sync();
- au_writel(sleep_intctl_config1[0], IC0_CFG1SET); au_sync();
- au_writel(0xffffffff, IC0_CFG2CLR); au_sync();
- au_writel(sleep_intctl_config2[0], IC0_CFG2SET); au_sync();
- au_writel(0xffffffff, IC0_SRCCLR); au_sync();
- au_writel(sleep_intctl_src[0], IC0_SRCSET); au_sync();
- au_writel(0xffffffff, IC0_ASSIGNCLR); au_sync();
- au_writel(sleep_intctl_assign[0], IC0_ASSIGNSET); au_sync();
- au_writel(0xffffffff, IC0_WAKECLR); au_sync();
- au_writel(sleep_intctl_wake[0], IC0_WAKESET); au_sync();
- au_writel(0xffffffff, IC0_RISINGCLR); au_sync();
- au_writel(0xffffffff, IC0_FALLINGCLR); au_sync();
- au_writel(0x00000000, IC0_TESTBIT); au_sync();
-
- au_writel(0xffffffff, IC1_MASKCLR); au_sync();
-
- au_writel(0xffffffff, IC1_CFG0CLR); au_sync();
- au_writel(sleep_intctl_config0[1], IC1_CFG0SET); au_sync();
- au_writel(0xffffffff, IC1_CFG1CLR); au_sync();
- au_writel(sleep_intctl_config1[1], IC1_CFG1SET); au_sync();
- au_writel(0xffffffff, IC1_CFG2CLR); au_sync();
- au_writel(sleep_intctl_config2[1], IC1_CFG2SET); au_sync();
- au_writel(0xffffffff, IC1_SRCCLR); au_sync();
- au_writel(sleep_intctl_src[1], IC1_SRCSET); au_sync();
- au_writel(0xffffffff, IC1_ASSIGNCLR); au_sync();
- au_writel(sleep_intctl_assign[1], IC1_ASSIGNSET); au_sync();
- au_writel(0xffffffff, IC1_WAKECLR); au_sync();
- au_writel(sleep_intctl_wake[1], IC1_WAKESET); au_sync();
- au_writel(0xffffffff, IC1_RISINGCLR); au_sync();
- au_writel(0xffffffff, IC1_FALLINGCLR); au_sync();
- au_writel(0x00000000, IC1_TESTBIT); au_sync();
-
- au_writel(sleep_intctl_mask[1], IC1_MASKSET); au_sync();
-
- au_writel(sleep_intctl_mask[0], IC0_MASKSET); au_sync();
-}
-#endif /* CONFIG_PM */
-
-
-inline void local_enable_irq(unsigned int irq_nr)
-{
- unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
-
- if (bit >= 32) {
- au_writel(1 << (bit - 32), IC1_MASKSET);
- au_writel(1 << (bit - 32), IC1_WAKESET);
- } else {
- au_writel(1 << bit, IC0_MASKSET);
- au_writel(1 << bit, IC0_WAKESET);
- }
- au_sync();
-}
-
-
-inline void local_disable_irq(unsigned int irq_nr)
-{
- unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
-
- if (bit >= 32) {
- au_writel(1 << (bit - 32), IC1_MASKCLR);
- au_writel(1 << (bit - 32), IC1_WAKECLR);
- } else {
- au_writel(1 << bit, IC0_MASKCLR);
- au_writel(1 << bit, IC0_WAKECLR);
- }
- au_sync();
-}
-
-
-static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr)
-{
- unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
-
- if (bit >= 32) {
- au_writel(1 << (bit - 32), IC1_RISINGCLR);
- au_writel(1 << (bit - 32), IC1_MASKCLR);
- } else {
- au_writel(1 << bit, IC0_RISINGCLR);
- au_writel(1 << bit, IC0_MASKCLR);
- }
- au_sync();
-}
-
-
-static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr)
-{
- unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
-
- if (bit >= 32) {
- au_writel(1 << (bit - 32), IC1_FALLINGCLR);
- au_writel(1 << (bit - 32), IC1_MASKCLR);
- } else {
- au_writel(1 << bit, IC0_FALLINGCLR);
- au_writel(1 << bit, IC0_MASKCLR);
- }
- au_sync();
-}
-
-
-static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr)
-{
- unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
-
- /*
- * This may assume that we don't get interrupts from
- * both edges at once, or if we do, that we don't care.
- */
- if (bit >= 32) {
- au_writel(1 << (bit - 32), IC1_FALLINGCLR);
- au_writel(1 << (bit - 32), IC1_RISINGCLR);
- au_writel(1 << (bit - 32), IC1_MASKCLR);
- } else {
- au_writel(1 << bit, IC0_FALLINGCLR);
- au_writel(1 << bit, IC0_RISINGCLR);
- au_writel(1 << bit, IC0_MASKCLR);
- }
- au_sync();
-}
-
-static inline void mask_and_ack_level_irq(unsigned int irq_nr)
-{
- local_disable_irq(irq_nr);
- au_sync();
-#if defined(CONFIG_MIPS_PB1000)
- if (irq_nr == AU1000_GPIO_15) {
- au_writel(0x8000, PB1000_MDR); /* ack int */
- au_sync();
- }
-#endif
-}
-
-static void end_irq(unsigned int irq_nr)
-{
- if (!(irq_desc[irq_nr].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
- local_enable_irq(irq_nr);
-
-#if defined(CONFIG_MIPS_PB1000)
- if (irq_nr == AU1000_GPIO_15) {
- au_writel(0x4000, PB1000_MDR); /* enable int */
- au_sync();
- }
-#endif
-}
-
-unsigned long save_local_and_disable(int controller)
-{
- int i;
- unsigned long flags, mask;
-
- spin_lock_irqsave(&irq_lock, flags);
- if (controller) {
- mask = au_readl(IC1_MASKSET);
- for (i = 32; i < 64; i++)
- local_disable_irq(i);
- } else {
- mask = au_readl(IC0_MASKSET);
- for (i = 0; i < 32; i++)
- local_disable_irq(i);
- }
- spin_unlock_irqrestore(&irq_lock, flags);
-
- return mask;
-}
-
-void restore_local_and_enable(int controller, unsigned long mask)
-{
- int i;
- unsigned long flags, new_mask;
-
- spin_lock_irqsave(&irq_lock, flags);
- for (i = 0; i < 32; i++)
- if (mask & (1 << i)) {
- if (controller)
- local_enable_irq(i + 32);
- else
- local_enable_irq(i);
- }
-
- if (controller)
- new_mask = au_readl(IC1_MASKSET);
- else
- new_mask = au_readl(IC0_MASKSET);
-
- spin_unlock_irqrestore(&irq_lock, flags);
-}
-
-
-static struct irq_chip rise_edge_irq_type = {
- .name = "Au1000 Rise Edge",
- .ack = mask_and_ack_rise_edge_irq,
- .mask = local_disable_irq,
- .mask_ack = mask_and_ack_rise_edge_irq,
- .unmask = local_enable_irq,
- .end = end_irq,
-};
-
-static struct irq_chip fall_edge_irq_type = {
- .name = "Au1000 Fall Edge",
- .ack = mask_and_ack_fall_edge_irq,
- .mask = local_disable_irq,
- .mask_ack = mask_and_ack_fall_edge_irq,
- .unmask = local_enable_irq,
- .end = end_irq,
-};
-
-static struct irq_chip either_edge_irq_type = {
- .name = "Au1000 Rise or Fall Edge",
- .ack = mask_and_ack_either_edge_irq,
- .mask = local_disable_irq,
- .mask_ack = mask_and_ack_either_edge_irq,
- .unmask = local_enable_irq,
- .end = end_irq,
-};
-
-static struct irq_chip level_irq_type = {
- .name = "Au1000 Level",
- .ack = mask_and_ack_level_irq,
- .mask = local_disable_irq,
- .mask_ack = mask_and_ack_level_irq,
- .unmask = local_enable_irq,
- .end = end_irq,
-};
-
-static void __init setup_local_irq(unsigned int irq_nr, int type, int int_req)
-{
- unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
-
- if (irq_nr > AU1000_MAX_INTR)
- return;
-
- /* Config2[n], Config1[n], Config0[n] */
- if (bit >= 32) {
- switch (type) {
- case INTC_INT_RISE_EDGE: /* 0:0:1 */
- au_writel(1 << (bit - 32), IC1_CFG2CLR);
- au_writel(1 << (bit - 32), IC1_CFG1CLR);
- au_writel(1 << (bit - 32), IC1_CFG0SET);
- set_irq_chip(irq_nr, &rise_edge_irq_type);
- break;
- case INTC_INT_FALL_EDGE: /* 0:1:0 */
- au_writel(1 << (bit - 32), IC1_CFG2CLR);
- au_writel(1 << (bit - 32), IC1_CFG1SET);
- au_writel(1 << (bit - 32), IC1_CFG0CLR);
- set_irq_chip(irq_nr, &fall_edge_irq_type);
- break;
- case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
- au_writel(1 << (bit - 32), IC1_CFG2CLR);
- au_writel(1 << (bit - 32), IC1_CFG1SET);
- au_writel(1 << (bit - 32), IC1_CFG0SET);
- set_irq_chip(irq_nr, &either_edge_irq_type);
- break;
- case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
- au_writel(1 << (bit - 32), IC1_CFG2SET);
- au_writel(1 << (bit - 32), IC1_CFG1CLR);
- au_writel(1 << (bit - 32), IC1_CFG0SET);
- set_irq_chip(irq_nr, &level_irq_type);
- break;
- case INTC_INT_LOW_LEVEL: /* 1:1:0 */
- au_writel(1 << (bit - 32), IC1_CFG2SET);
- au_writel(1 << (bit - 32), IC1_CFG1SET);
- au_writel(1 << (bit - 32), IC1_CFG0CLR);
- set_irq_chip(irq_nr, &level_irq_type);
- break;
- case INTC_INT_DISABLED: /* 0:0:0 */
- au_writel(1 << (bit - 32), IC1_CFG0CLR);
- au_writel(1 << (bit - 32), IC1_CFG1CLR);
- au_writel(1 << (bit - 32), IC1_CFG2CLR);
- break;
- default: /* disable the interrupt */
- printk(KERN_WARNING "unexpected int type %d (irq %d)\n",
- type, irq_nr);
- au_writel(1 << (bit - 32), IC1_CFG0CLR);
- au_writel(1 << (bit - 32), IC1_CFG1CLR);
- au_writel(1 << (bit - 32), IC1_CFG2CLR);
- return;
- }
- if (int_req) /* assign to interrupt request 1 */
- au_writel(1 << (bit - 32), IC1_ASSIGNCLR);
- else /* assign to interrupt request 0 */
- au_writel(1 << (bit - 32), IC1_ASSIGNSET);
- au_writel(1 << (bit - 32), IC1_SRCSET);
- au_writel(1 << (bit - 32), IC1_MASKCLR);
- au_writel(1 << (bit - 32), IC1_WAKECLR);
- } else {
- switch (type) {
- case INTC_INT_RISE_EDGE: /* 0:0:1 */
- au_writel(1 << bit, IC0_CFG2CLR);
- au_writel(1 << bit, IC0_CFG1CLR);
- au_writel(1 << bit, IC0_CFG0SET);
- set_irq_chip(irq_nr, &rise_edge_irq_type);
- break;
- case INTC_INT_FALL_EDGE: /* 0:1:0 */
- au_writel(1 << bit, IC0_CFG2CLR);
- au_writel(1 << bit, IC0_CFG1SET);
- au_writel(1 << bit, IC0_CFG0CLR);
- set_irq_chip(irq_nr, &fall_edge_irq_type);
- break;
- case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
- au_writel(1 << bit, IC0_CFG2CLR);
- au_writel(1 << bit, IC0_CFG1SET);
- au_writel(1 << bit, IC0_CFG0SET);
- set_irq_chip(irq_nr, &either_edge_irq_type);
- break;
- case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
- au_writel(1 << bit, IC0_CFG2SET);
- au_writel(1 << bit, IC0_CFG1CLR);
- au_writel(1 << bit, IC0_CFG0SET);
- set_irq_chip(irq_nr, &level_irq_type);
- break;
- case INTC_INT_LOW_LEVEL: /* 1:1:0 */
- au_writel(1 << bit, IC0_CFG2SET);
- au_writel(1 << bit, IC0_CFG1SET);
- au_writel(1 << bit, IC0_CFG0CLR);
- set_irq_chip(irq_nr, &level_irq_type);
- break;
- case INTC_INT_DISABLED: /* 0:0:0 */
- au_writel(1 << bit, IC0_CFG0CLR);
- au_writel(1 << bit, IC0_CFG1CLR);
- au_writel(1 << bit, IC0_CFG2CLR);
- break;
- default: /* disable the interrupt */
- printk(KERN_WARNING "unexpected int type %d (irq %d)\n",
- type, irq_nr);
- au_writel(1 << bit, IC0_CFG0CLR);
- au_writel(1 << bit, IC0_CFG1CLR);
- au_writel(1 << bit, IC0_CFG2CLR);
- return;
- }
- if (int_req) /* assign to interrupt request 1 */
- au_writel(1 << bit, IC0_ASSIGNCLR);
- else /* assign to interrupt request 0 */
- au_writel(1 << bit, IC0_ASSIGNSET);
- au_writel(1 << bit, IC0_SRCSET);
- au_writel(1 << bit, IC0_MASKCLR);
- au_writel(1 << bit, IC0_WAKECLR);
- }
- au_sync();
-}
-
-/*
- * Interrupts are nested. Even if an interrupt handler is registered
- * as "fast", we might get another interrupt before we return from
- * intcX_reqX_irqdispatch().
- */
-
-static void intc0_req0_irqdispatch(void)
-{
- static unsigned long intc0_req0;
- unsigned int bit;
-
- intc0_req0 |= au_readl(IC0_REQ0INT);
-
- if (!intc0_req0)
- return;
-
-#ifdef AU1000_USB_DEV_REQ_INT
- /*
- * Because of the tight timing of SETUP token to reply
- * transactions, the USB devices-side packet complete
- * interrupt needs the highest priority.
- */
- if ((intc0_req0 & (1 << AU1000_USB_DEV_REQ_INT))) {
- intc0_req0 &= ~(1 << AU1000_USB_DEV_REQ_INT);
- do_IRQ(AU1000_USB_DEV_REQ_INT);
- return;
- }
-#endif
- bit = __ffs(intc0_req0);
- intc0_req0 &= ~(1 << bit);
- do_IRQ(AU1000_INTC0_INT_BASE + bit);
-}
-
-
-static void intc0_req1_irqdispatch(void)
-{
- static unsigned long intc0_req1;
- unsigned int bit;
-
- intc0_req1 |= au_readl(IC0_REQ1INT);
-
- if (!intc0_req1)
- return;
-
- bit = __ffs(intc0_req1);
- intc0_req1 &= ~(1 << bit);
- do_IRQ(AU1000_INTC0_INT_BASE + bit);
-}
-
-
-/*
- * Interrupt Controller 1:
- * interrupts 32 - 63
- */
-static void intc1_req0_irqdispatch(void)
-{
- static unsigned long intc1_req0;
- unsigned int bit;
-
- intc1_req0 |= au_readl(IC1_REQ0INT);
-
- if (!intc1_req0)
- return;
-
- bit = __ffs(intc1_req0);
- intc1_req0 &= ~(1 << bit);
- do_IRQ(AU1000_INTC1_INT_BASE + bit);
-}
-
-
-static void intc1_req1_irqdispatch(void)
-{
- static unsigned long intc1_req1;
- unsigned int bit;
-
- intc1_req1 |= au_readl(IC1_REQ1INT);
-
- if (!intc1_req1)
- return;
-
- bit = __ffs(intc1_req1);
- intc1_req1 &= ~(1 << bit);
- do_IRQ(AU1000_INTC1_INT_BASE + bit);
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned int pending = read_c0_status() & read_c0_cause();
-
- if (pending & CAUSEF_IP7)
- do_IRQ(MIPS_CPU_IRQ_BASE + 7);
- else if (pending & CAUSEF_IP2)
- intc0_req0_irqdispatch();
- else if (pending & CAUSEF_IP3)
- intc0_req1_irqdispatch();
- else if (pending & CAUSEF_IP4)
- intc1_req0_irqdispatch();
- else if (pending & CAUSEF_IP5)
- intc1_req1_irqdispatch();
- else
- spurious_interrupt();
-}
-
-void __init arch_init_irq(void)
-{
- int i;
- struct au1xxx_irqmap *imp;
- extern struct au1xxx_irqmap au1xxx_irq_map[];
- extern struct au1xxx_irqmap au1xxx_ic0_map[];
- extern int au1xxx_nr_irqs;
- extern int au1xxx_ic0_nr_irqs;
-
- /*
- * 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);
-
- mips_cpu_irq_init();
-
- /*
- * 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(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4);
-
- /* Board specific IRQ initialization.
- */
- if (board_init_irq)
- board_init_irq();
-}