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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/au1000/common/irq.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/mips/au1000/common/irq.c')
-rw-r--r--arch/mips/au1000/common/irq.c654
1 files changed, 654 insertions, 0 deletions
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
new file mode 100644
index 000000000000..d1eb5a4a9a19
--- /dev/null
+++ b/arch/mips/au1000/common/irq.c
@@ -0,0 +1,654 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Au1000 interrupt routines.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ppopov@mvista.com or source@mvista.com
+ *
+ * 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/config.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+#include <asm/mach-au1x00/au1000.h>
+#ifdef CONFIG_MIPS_PB1000
+#include <asm/mach-pb1x00/pb1000.h>
+#endif
+
+#undef DEBUG_IRQ
+#ifdef DEBUG_IRQ
+/* note: prints function name for you */
+#define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ## args)
+#else
+#define DPRINTK(fmt, args...)
+#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 */
+
+extern asmlinkage void au1000_IRQ(void);
+extern void set_debug_traps(void);
+extern irq_cpustat_t irq_stat [NR_CPUS];
+
+static void setup_local_irq(unsigned int irq, int type, int int_req);
+static unsigned int startup_irq(unsigned int irq);
+static void end_irq(unsigned int irq_nr);
+static inline void mask_and_ack_level_irq(unsigned int irq_nr);
+static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr);
+static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr);
+static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr);
+inline void local_enable_irq(unsigned int irq_nr);
+inline void local_disable_irq(unsigned int irq_nr);
+
+void (*board_init_irq)(void);
+
+#ifdef CONFIG_PM
+extern void counter0_irq(int irq, void *dev_id, struct pt_regs *regs);
+#endif
+
+static DEFINE_SPINLOCK(irq_lock);
+
+
+static unsigned int startup_irq(unsigned int irq_nr)
+{
+ local_enable_irq(irq_nr);
+ return 0;
+}
+
+
+static void shutdown_irq(unsigned int irq_nr)
+{
+ local_disable_irq(irq_nr);
+ return;
+}
+
+
+inline void local_enable_irq(unsigned int irq_nr)
+{
+ if (irq_nr > AU1000_LAST_INTC0_INT) {
+ au_writel(1<<(irq_nr-32), IC1_MASKSET);
+ au_writel(1<<(irq_nr-32), IC1_WAKESET);
+ }
+ else {
+ au_writel(1<<irq_nr, IC0_MASKSET);
+ au_writel(1<<irq_nr, IC0_WAKESET);
+ }
+ au_sync();
+}
+
+
+inline void local_disable_irq(unsigned int irq_nr)
+{
+ if (irq_nr > AU1000_LAST_INTC0_INT) {
+ au_writel(1<<(irq_nr-32), IC1_MASKCLR);
+ au_writel(1<<(irq_nr-32), IC1_WAKECLR);
+ }
+ else {
+ au_writel(1<<irq_nr, IC0_MASKCLR);
+ au_writel(1<<irq_nr, IC0_WAKECLR);
+ }
+ au_sync();
+}
+
+
+static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr)
+{
+ if (irq_nr > AU1000_LAST_INTC0_INT) {
+ au_writel(1<<(irq_nr-32), IC1_RISINGCLR);
+ au_writel(1<<(irq_nr-32), IC1_MASKCLR);
+ }
+ else {
+ au_writel(1<<irq_nr, IC0_RISINGCLR);
+ au_writel(1<<irq_nr, IC0_MASKCLR);
+ }
+ au_sync();
+}
+
+
+static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr)
+{
+ if (irq_nr > AU1000_LAST_INTC0_INT) {
+ au_writel(1<<(irq_nr-32), IC1_FALLINGCLR);
+ au_writel(1<<(irq_nr-32), IC1_MASKCLR);
+ }
+ else {
+ au_writel(1<<irq_nr, IC0_FALLINGCLR);
+ au_writel(1<<irq_nr, IC0_MASKCLR);
+ }
+ au_sync();
+}
+
+
+static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr)
+{
+ /* This may assume that we don't get interrupts from
+ * both edges at once, or if we do, that we don't care.
+ */
+ if (irq_nr > AU1000_LAST_INTC0_INT) {
+ au_writel(1<<(irq_nr-32), IC1_FALLINGCLR);
+ au_writel(1<<(irq_nr-32), IC1_RISINGCLR);
+ au_writel(1<<(irq_nr-32), IC1_MASKCLR);
+ }
+ else {
+ au_writel(1<<irq_nr, IC0_FALLINGCLR);
+ au_writel(1<<irq_nr, IC0_RISINGCLR);
+ au_writel(1<<irq_nr, 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
+ return;
+}
+
+
+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 hw_interrupt_type rise_edge_irq_type = {
+ "Au1000 Rise Edge",
+ startup_irq,
+ shutdown_irq,
+ local_enable_irq,
+ local_disable_irq,
+ mask_and_ack_rise_edge_irq,
+ end_irq,
+ NULL
+};
+
+static struct hw_interrupt_type fall_edge_irq_type = {
+ "Au1000 Fall Edge",
+ startup_irq,
+ shutdown_irq,
+ local_enable_irq,
+ local_disable_irq,
+ mask_and_ack_fall_edge_irq,
+ end_irq,
+ NULL
+};
+
+static struct hw_interrupt_type either_edge_irq_type = {
+ "Au1000 Rise or Fall Edge",
+ startup_irq,
+ shutdown_irq,
+ local_enable_irq,
+ local_disable_irq,
+ mask_and_ack_either_edge_irq,
+ end_irq,
+ NULL
+};
+
+static struct hw_interrupt_type level_irq_type = {
+ "Au1000 Level",
+ startup_irq,
+ shutdown_irq,
+ local_enable_irq,
+ local_disable_irq,
+ mask_and_ack_level_irq,
+ end_irq,
+ NULL
+};
+
+#ifdef CONFIG_PM
+void startup_match20_interrupt(void)
+{
+ local_enable_irq(AU1000_TOY_MATCH2_INT);
+}
+#endif
+
+static void setup_local_irq(unsigned int irq_nr, int type, int int_req)
+{
+ if (irq_nr > AU1000_MAX_INTR) return;
+ /* Config2[n], Config1[n], Config0[n] */
+ if (irq_nr > AU1000_LAST_INTC0_INT) {
+ switch (type) {
+ case INTC_INT_RISE_EDGE: /* 0:0:1 */
+ au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG0SET);
+ irq_desc[irq_nr].handler = &rise_edge_irq_type;
+ break;
+ case INTC_INT_FALL_EDGE: /* 0:1:0 */
+ au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG1SET);
+ au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
+ irq_desc[irq_nr].handler = &fall_edge_irq_type;
+ break;
+ case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
+ au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG1SET);
+ au_writel(1<<(irq_nr-32), IC1_CFG0SET);
+ irq_desc[irq_nr].handler = &either_edge_irq_type;
+ break;
+ case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
+ au_writel(1<<(irq_nr-32), IC1_CFG2SET);
+ au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG0SET);
+ irq_desc[irq_nr].handler = &level_irq_type;
+ break;
+ case INTC_INT_LOW_LEVEL: /* 1:1:0 */
+ au_writel(1<<(irq_nr-32), IC1_CFG2SET);
+ au_writel(1<<(irq_nr-32), IC1_CFG1SET);
+ au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
+ irq_desc[irq_nr].handler = &level_irq_type;
+ break;
+ case INTC_INT_DISABLED: /* 0:0:0 */
+ au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
+ break;
+ default: /* disable the interrupt */
+ printk("unexpected int type %d (irq %d)\n", type, irq_nr);
+ au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
+ au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
+ return;
+ }
+ if (int_req) /* assign to interrupt request 1 */
+ au_writel(1<<(irq_nr-32), IC1_ASSIGNCLR);
+ else /* assign to interrupt request 0 */
+ au_writel(1<<(irq_nr-32), IC1_ASSIGNSET);
+ au_writel(1<<(irq_nr-32), IC1_SRCSET);
+ au_writel(1<<(irq_nr-32), IC1_MASKCLR);
+ au_writel(1<<(irq_nr-32), IC1_WAKECLR);
+ }
+ else {
+ switch (type) {
+ case INTC_INT_RISE_EDGE: /* 0:0:1 */
+ au_writel(1<<irq_nr, IC0_CFG2CLR);
+ au_writel(1<<irq_nr, IC0_CFG1CLR);
+ au_writel(1<<irq_nr, IC0_CFG0SET);
+ irq_desc[irq_nr].handler = &rise_edge_irq_type;
+ break;
+ case INTC_INT_FALL_EDGE: /* 0:1:0 */
+ au_writel(1<<irq_nr, IC0_CFG2CLR);
+ au_writel(1<<irq_nr, IC0_CFG1SET);
+ au_writel(1<<irq_nr, IC0_CFG0CLR);
+ irq_desc[irq_nr].handler = &fall_edge_irq_type;
+ break;
+ case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
+ au_writel(1<<irq_nr, IC0_CFG2CLR);
+ au_writel(1<<irq_nr, IC0_CFG1SET);
+ au_writel(1<<irq_nr, IC0_CFG0SET);
+ irq_desc[irq_nr].handler = &either_edge_irq_type;
+ break;
+ case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
+ au_writel(1<<irq_nr, IC0_CFG2SET);
+ au_writel(1<<irq_nr, IC0_CFG1CLR);
+ au_writel(1<<irq_nr, IC0_CFG0SET);
+ irq_desc[irq_nr].handler = &level_irq_type;
+ break;
+ case INTC_INT_LOW_LEVEL: /* 1:1:0 */
+ au_writel(1<<irq_nr, IC0_CFG2SET);
+ au_writel(1<<irq_nr, IC0_CFG1SET);
+ au_writel(1<<irq_nr, IC0_CFG0CLR);
+ irq_desc[irq_nr].handler = &level_irq_type;
+ break;
+ case INTC_INT_DISABLED: /* 0:0:0 */
+ au_writel(1<<irq_nr, IC0_CFG0CLR);
+ au_writel(1<<irq_nr, IC0_CFG1CLR);
+ au_writel(1<<irq_nr, IC0_CFG2CLR);
+ break;
+ default: /* disable the interrupt */
+ printk("unexpected int type %d (irq %d)\n", type, irq_nr);
+ au_writel(1<<irq_nr, IC0_CFG0CLR);
+ au_writel(1<<irq_nr, IC0_CFG1CLR);
+ au_writel(1<<irq_nr, IC0_CFG2CLR);
+ return;
+ }
+ if (int_req) /* assign to interrupt request 1 */
+ au_writel(1<<irq_nr, IC0_ASSIGNCLR);
+ else /* assign to interrupt request 0 */
+ au_writel(1<<irq_nr, IC0_ASSIGNSET);
+ au_writel(1<<irq_nr, IC0_SRCSET);
+ au_writel(1<<irq_nr, IC0_MASKCLR);
+ au_writel(1<<irq_nr, IC0_WAKECLR);
+ }
+ au_sync();
+}
+
+
+void __init arch_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);
+
+ /* 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)();
+}
+
+
+/*
+ * Interrupts are nested. Even if an interrupt handler is registered
+ * as "fast", we might get another interrupt before we return from
+ * intcX_reqX_irqdispatch().
+ */
+
+void intc0_req0_irqdispatch(struct pt_regs *regs)
+{
+ int irq = 0;
+ static unsigned long intc0_req0 = 0;
+
+ intc0_req0 |= au_readl(IC0_REQ0INT);
+
+ if (!intc0_req0) return;
+
+ /*
+ * 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, regs);
+ return;
+ }
+
+ irq = au_ffs(intc0_req0) - 1;
+ intc0_req0 &= ~(1<<irq);
+ do_IRQ(irq, regs);
+}
+
+
+void intc0_req1_irqdispatch(struct pt_regs *regs)
+{
+ int irq = 0;
+ static unsigned long intc0_req1 = 0;
+
+ intc0_req1 |= au_readl(IC0_REQ1INT);
+
+ if (!intc0_req1) return;
+
+ irq = au_ffs(intc0_req1) - 1;
+ intc0_req1 &= ~(1<<irq);
+#ifdef CONFIG_PM
+ if (irq == AU1000_TOY_MATCH2_INT) {
+ mask_and_ack_rise_edge_irq(irq);
+ counter0_irq(irq, NULL, regs);
+ local_enable_irq(irq);
+ }
+ else
+#endif
+ {
+ do_IRQ(irq, regs);
+ }
+}
+
+
+/*
+ * Interrupt Controller 1:
+ * interrupts 32 - 63
+ */
+void intc1_req0_irqdispatch(struct pt_regs *regs)
+{
+ int irq = 0;
+ static unsigned long intc1_req0 = 0;
+
+ intc1_req0 |= au_readl(IC1_REQ0INT);
+
+ if (!intc1_req0) return;
+
+ irq = au_ffs(intc1_req0) - 1;
+ intc1_req0 &= ~(1<<irq);
+ irq += 32;
+ do_IRQ(irq, regs);
+}
+
+
+void intc1_req1_irqdispatch(struct pt_regs *regs)
+{
+ int irq = 0;
+ static unsigned long intc1_req1 = 0;
+
+ intc1_req1 |= au_readl(IC1_REQ1INT);
+
+ if (!intc1_req1) return;
+
+ irq = au_ffs(intc1_req1) - 1;
+ intc1_req1 &= ~(1<<irq);
+ irq += 32;
+ do_IRQ(irq, regs);
+}
+
+#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 uint sleep_intctl_config0[2];
+static uint sleep_intctl_config1[2];
+static uint sleep_intctl_config2[2];
+static uint sleep_intctl_src[2];
+static uint sleep_intctl_assign[2];
+static uint sleep_intctl_wake[2];
+static uint 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 */