sh: Move the shared INTC code out to drivers/sh/

The INTC code will be re-used across different architectures, so move
this out to drivers/sh/ and include/linux/sh_intc.h respectively.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

3 files changed, 2 insertions, 804 deletions

diff --git a/arch/sh/include/asm/hw_irq.h b/arch/sh/include/asm/hw_irq.h
index d557b00111bf..603cdde813d1 100644
--- a/arch/sh/include/asm/hw_irq.h
+++ b/arch/sh/include/asm/hw_irq.h
@@ -2,6 +2,7 @@
 #define __ASM_SH_HW_IRQ_H
 
 #include <linux/init.h>
+#include <linux/sh_intc.h>
 #include <asm/atomic.h>
 
 extern atomic_t irq_err_count;
@@ -23,101 +24,12 @@ struct ipr_desc {
 
 void register_ipr_controller(struct ipr_desc *);
 
-typedef unsigned char intc_enum;
-
-struct intc_vect {
-	intc_enum enum_id;
-	unsigned short vect;
-};
-
-#define INTC_VECT(enum_id, vect) { enum_id, vect }
-#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
-
-struct intc_group {
-	intc_enum enum_id;
-	intc_enum enum_ids[32];
-};
-
-#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
-
-struct intc_mask_reg {
-	unsigned long set_reg, clr_reg, reg_width;
-	intc_enum enum_ids[32];
-#ifdef CONFIG_SMP
-	unsigned long smp;
-#endif
-};
-
-struct intc_prio_reg {
-	unsigned long set_reg, clr_reg, reg_width, field_width;
-	intc_enum enum_ids[16];
-#ifdef CONFIG_SMP
-	unsigned long smp;
-#endif
-};
-
-struct intc_sense_reg {
-	unsigned long reg, reg_width, field_width;
-	intc_enum enum_ids[16];
-};
-
-#ifdef CONFIG_SMP
-#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
-#else
-#define INTC_SMP(stride, nr)
-#endif
-
-struct intc_desc {
-	struct intc_vect *vectors;
-	unsigned int nr_vectors;
-	struct intc_group *groups;
-	unsigned int nr_groups;
-	struct intc_mask_reg *mask_regs;
-	unsigned int nr_mask_regs;
-	struct intc_prio_reg *prio_regs;
-	unsigned int nr_prio_regs;
-	struct intc_sense_reg *sense_regs;
-	unsigned int nr_sense_regs;
-	char *name;
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-	struct intc_mask_reg *ack_regs;
-	unsigned int nr_ack_regs;
-#endif
-};
-
-#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
-#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups,		\
-	mask_regs, prio_regs, sense_regs)				\
-struct intc_desc symbol __initdata = {					\
-	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),			\
-	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),			\
-	_INTC_ARRAY(sense_regs),					\
-	chipname,							\
-}
-
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups,	\
-	mask_regs, prio_regs, sense_regs, ack_regs)			\
-struct intc_desc symbol __initdata = {					\
-	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),			\
-	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),			\
-	_INTC_ARRAY(sense_regs),					\
-	chipname,							\
-	_INTC_ARRAY(ack_regs),						\
-}
-#endif
-
-void __init register_intc_controller(struct intc_desc *desc);
-int intc_set_priority(unsigned int irq, unsigned int prio);
-
 void __init plat_irq_setup(void);
-#ifdef CONFIG_CPU_SH3
 void __init plat_irq_setup_sh3(void);
-#endif
+void __init plat_irq_setup_pins(int mode);
 
 enum { IRQ_MODE_IRQ, IRQ_MODE_IRQ7654, IRQ_MODE_IRQ3210,
        IRQ_MODE_IRL7654_MASK, IRQ_MODE_IRL3210_MASK,
        IRQ_MODE_IRL7654, IRQ_MODE_IRL3210 };
-void __init plat_irq_setup_pins(int mode);
 
 #endif /* __ASM_SH_HW_IRQ_H */
diff --git a/arch/sh/kernel/cpu/irq/Makefile b/arch/sh/kernel/cpu/irq/Makefile
index 462a8f6dfee2..f0c7025a67d1 100644
--- a/arch/sh/kernel/cpu/irq/Makefile
+++ b/arch/sh/kernel/cpu/irq/Makefile
@@ -1,8 +1,6 @@
 #
 # Makefile for the Linux/SuperH CPU-specifc IRQ handlers.
 #
-obj-y	+= intc.o
-
 obj-$(CONFIG_SUPERH32)			+= imask.o
 obj-$(CONFIG_CPU_SH5)			+= intc-sh5.o
 obj-$(CONFIG_CPU_HAS_IPR_IRQ)		+= ipr.o
diff --git a/arch/sh/kernel/cpu/irq/intc.c b/arch/sh/kernel/cpu/irq/intc.c
deleted file mode 100644
index 138efa4e95db..000000000000
--- a/arch/sh/kernel/cpu/irq/intc.c
+++ /dev/null
@@ -1,712 +0,0 @@
-/*
- * Shared interrupt handling code for IPR and INTC2 types of IRQs.
- *
- * Copyright (C) 2007, 2008 Magnus Damm
- *
- * Based on intc2.c and ipr.c
- *
- * Copyright (C) 1999  Niibe Yutaka & Takeshi Yaegashi
- * Copyright (C) 2000  Kazumoto Kojima
- * Copyright (C) 2001  David J. Mckay (david.mckay@st.com)
- * Copyright (C) 2003  Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
- * Copyright (C) 2005, 2006  Paul Mundt
- *
- * 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.
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/module.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/bootmem.h>
-
-#define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \
-	((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \
-	 ((addr_e) << 16) | ((addr_d << 24)))
-
-#define _INTC_SHIFT(h) (h & 0x1f)
-#define _INTC_WIDTH(h) ((h >> 5) & 0xf)
-#define _INTC_FN(h) ((h >> 9) & 0xf)
-#define _INTC_MODE(h) ((h >> 13) & 0x7)
-#define _INTC_ADDR_E(h) ((h >> 16) & 0xff)
-#define _INTC_ADDR_D(h) ((h >> 24) & 0xff)
-
-struct intc_handle_int {
-	unsigned int irq;
-	unsigned long handle;
-};
-
-struct intc_desc_int {
-	unsigned long *reg;
-#ifdef CONFIG_SMP
-	unsigned long *smp;
-#endif
-	unsigned int nr_reg;
-	struct intc_handle_int *prio;
-	unsigned int nr_prio;
-	struct intc_handle_int *sense;
-	unsigned int nr_sense;
-	struct irq_chip chip;
-};
-
-#ifdef CONFIG_SMP
-#define IS_SMP(x) x.smp
-#define INTC_REG(d, x, c) (d->reg[(x)] + ((d->smp[(x)] & 0xff) * c))
-#define SMP_NR(d, x) ((d->smp[(x)] >> 8) ? (d->smp[(x)] >> 8) : 1)
-#else
-#define IS_SMP(x) 0
-#define INTC_REG(d, x, c) (d->reg[(x)])
-#define SMP_NR(d, x) 1
-#endif
-
-static unsigned int intc_prio_level[NR_IRQS]; /* for now */
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-static unsigned long ack_handle[NR_IRQS];
-#endif
-
-static inline struct intc_desc_int *get_intc_desc(unsigned int irq)
-{
-	struct irq_chip *chip = get_irq_chip(irq);
-	return (void *)((char *)chip - offsetof(struct intc_desc_int, chip));
-}
-
-static inline unsigned int set_field(unsigned int value,
-				     unsigned int field_value,
-				     unsigned int handle)
-{
-	unsigned int width = _INTC_WIDTH(handle);
-	unsigned int shift = _INTC_SHIFT(handle);
-
-	value &= ~(((1 << width) - 1) << shift);
-	value |= field_value << shift;
-	return value;
-}
-
-static void write_8(unsigned long addr, unsigned long h, unsigned long data)
-{
-	__raw_writeb(set_field(0, data, h), addr);
-}
-
-static void write_16(unsigned long addr, unsigned long h, unsigned long data)
-{
-	__raw_writew(set_field(0, data, h), addr);
-}
-
-static void write_32(unsigned long addr, unsigned long h, unsigned long data)
-{
-	__raw_writel(set_field(0, data, h), addr);
-}
-
-static void modify_8(unsigned long addr, unsigned long h, unsigned long data)
-{
-	unsigned long flags;
-	local_irq_save(flags);
-	__raw_writeb(set_field(__raw_readb(addr), data, h), addr);
-	local_irq_restore(flags);
-}
-
-static void modify_16(unsigned long addr, unsigned long h, unsigned long data)
-{
-	unsigned long flags;
-	local_irq_save(flags);
-	__raw_writew(set_field(__raw_readw(addr), data, h), addr);
-	local_irq_restore(flags);
-}
-
-static void modify_32(unsigned long addr, unsigned long h, unsigned long data)
-{
-	unsigned long flags;
-	local_irq_save(flags);
-	__raw_writel(set_field(__raw_readl(addr), data, h), addr);
-	local_irq_restore(flags);
-}
-
-enum {	REG_FN_ERR = 0, REG_FN_WRITE_BASE = 1, REG_FN_MODIFY_BASE = 5 };
-
-static void (*intc_reg_fns[])(unsigned long addr,
-			      unsigned long h,
-			      unsigned long data) = {
-	[REG_FN_WRITE_BASE + 0] = write_8,
-	[REG_FN_WRITE_BASE + 1] = write_16,
-	[REG_FN_WRITE_BASE + 3] = write_32,
-	[REG_FN_MODIFY_BASE + 0] = modify_8,
-	[REG_FN_MODIFY_BASE + 1] = modify_16,
-	[REG_FN_MODIFY_BASE + 3] = modify_32,
-};
-
-enum {	MODE_ENABLE_REG = 0, /* Bit(s) set -> interrupt enabled */
-	MODE_MASK_REG,       /* Bit(s) set -> interrupt disabled */
-	MODE_DUAL_REG,       /* Two registers, set bit to enable / disable */
-	MODE_PRIO_REG,       /* Priority value written to enable interrupt */
-	MODE_PCLR_REG,       /* Above plus all bits set to disable interrupt */
-};
-
-static void intc_mode_field(unsigned long addr,
-			    unsigned long handle,
-			    void (*fn)(unsigned long,
-				       unsigned long,
-				       unsigned long),
-			    unsigned int irq)
-{
-	fn(addr, handle, ((1 << _INTC_WIDTH(handle)) - 1));
-}
-
-static void intc_mode_zero(unsigned long addr,
-			   unsigned long handle,
-			   void (*fn)(unsigned long,
-				       unsigned long,
-				       unsigned long),
-			   unsigned int irq)
-{
-	fn(addr, handle, 0);
-}
-
-static void intc_mode_prio(unsigned long addr,
-			   unsigned long handle,
-			   void (*fn)(unsigned long,
-				       unsigned long,
-				       unsigned long),
-			   unsigned int irq)
-{
-	fn(addr, handle, intc_prio_level[irq]);
-}
-
-static void (*intc_enable_fns[])(unsigned long addr,
-				 unsigned long handle,
-				 void (*fn)(unsigned long,
-					    unsigned long,
-					    unsigned long),
-				 unsigned int irq) = {
-	[MODE_ENABLE_REG] = intc_mode_field,
-	[MODE_MASK_REG] = intc_mode_zero,
-	[MODE_DUAL_REG] = intc_mode_field,
-	[MODE_PRIO_REG] = intc_mode_prio,
-	[MODE_PCLR_REG] = intc_mode_prio,
-};
-
-static void (*intc_disable_fns[])(unsigned long addr,
-				  unsigned long handle,
-				  void (*fn)(unsigned long,
-					     unsigned long,
-					     unsigned long),
-				  unsigned int irq) = {
-	[MODE_ENABLE_REG] = intc_mode_zero,
-	[MODE_MASK_REG] = intc_mode_field,
-	[MODE_DUAL_REG] = intc_mode_field,
-	[MODE_PRIO_REG] = intc_mode_zero,
-	[MODE_PCLR_REG] = intc_mode_field,
-};
-
-static inline void _intc_enable(unsigned int irq, unsigned long handle)
-{
-	struct intc_desc_int *d = get_intc_desc(irq);
-	unsigned long addr;
-	unsigned int cpu;
-
-	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) {
-		addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu);
-		intc_enable_fns[_INTC_MODE(handle)](addr, handle, intc_reg_fns\
-						    [_INTC_FN(handle)], irq);
-	}
-}
-
-static void intc_enable(unsigned int irq)
-{
-	_intc_enable(irq, (unsigned long)get_irq_chip_data(irq));
-}
-
-static void intc_disable(unsigned int irq)
-{
-	struct intc_desc_int *d = get_intc_desc(irq);
-	unsigned long handle = (unsigned long) get_irq_chip_data(irq);
-	unsigned long addr;
-	unsigned int cpu;
-
-	for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
-		addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
-		intc_disable_fns[_INTC_MODE(handle)](addr, handle,intc_reg_fns\
-						     [_INTC_FN(handle)], irq);
-	}
-}
-
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-static void intc_mask_ack(unsigned int irq)
-{
-	struct intc_desc_int *d = get_intc_desc(irq);
-	unsigned long handle = ack_handle[irq];
-	unsigned long addr;
-
-	intc_disable(irq);
-
-	/* read register and write zero only to the assocaited bit */
-
-	if (handle) {
-		addr = INTC_REG(d, _INTC_ADDR_D(handle), 0);
-		switch (_INTC_FN(handle)) {
-		case REG_FN_MODIFY_BASE + 0:	/* 8bit */
-			__raw_readb(addr);
-			__raw_writeb(0xff ^ set_field(0, 1, handle), addr);
-			break;
-		case REG_FN_MODIFY_BASE + 1:	/* 16bit */
-			__raw_readw(addr);
-			__raw_writew(0xffff ^ set_field(0, 1, handle), addr);
-			break;
-		case REG_FN_MODIFY_BASE + 3:	/* 32bit */
-			__raw_readl(addr);
-			__raw_writel(0xffffffff ^ set_field(0, 1, handle), addr);
-			break;
-		default:
-			BUG();
-			break;
-		}
-	}
-}
-#endif
-
-static struct intc_handle_int *intc_find_irq(struct intc_handle_int *hp,
-					     unsigned int nr_hp,
-					     unsigned int irq)
-{
-	int i;
-
-	/* this doesn't scale well, but...
-	 *
-	 * this function should only be used for cerain uncommon
-	 * operations such as intc_set_priority() and intc_set_sense()
-	 * and in those rare cases performance doesn't matter that much.
-	 * keeping the memory footprint low is more important.
-	 *
-	 * one rather simple way to speed this up and still keep the
-	 * memory footprint down is to make sure the array is sorted
-	 * and then perform a bisect to lookup the irq.
-	 */
-
-	for (i = 0; i < nr_hp; i++) {
-		if ((hp + i)->irq != irq)
-			continue;
-
-		return hp + i;
-	}
-
-	return NULL;
-}
-
-int intc_set_priority(unsigned int irq, unsigned int prio)
-{
-	struct intc_desc_int *d = get_intc_desc(irq);
-	struct intc_handle_int *ihp;
-
-	if (!intc_prio_level[irq] || prio <= 1)
-		return -EINVAL;
-
-	ihp = intc_find_irq(d->prio, d->nr_prio, irq);
-	if (ihp) {
-		if (prio >= (1 << _INTC_WIDTH(ihp->handle)))
-			return -EINVAL;
-
-		intc_prio_level[irq] = prio;
-
-		/*
-		 * only set secondary masking method directly
-		 * primary masking method is using intc_prio_level[irq]
-		 * priority level will be set during next enable()
-		 */
-
-		if (_INTC_FN(ihp->handle) != REG_FN_ERR)
-			_intc_enable(irq, ihp->handle);
-	}
-	return 0;
-}
-
-#define VALID(x) (x | 0x80)
-
-static unsigned char intc_irq_sense_table[IRQ_TYPE_SENSE_MASK + 1] = {
-	[IRQ_TYPE_EDGE_FALLING] = VALID(0),
-	[IRQ_TYPE_EDGE_RISING] = VALID(1),
-	[IRQ_TYPE_LEVEL_LOW] = VALID(2),
-	/* SH7706, SH7707 and SH7709 do not support high level triggered */
-#if !defined(CONFIG_CPU_SUBTYPE_SH7706) && \
-    !defined(CONFIG_CPU_SUBTYPE_SH7707) && \
-    !defined(CONFIG_CPU_SUBTYPE_SH7709)
-	[IRQ_TYPE_LEVEL_HIGH] = VALID(3),
-#endif
-};
-
-static int intc_set_sense(unsigned int irq, unsigned int type)
-{
-	struct intc_desc_int *d = get_intc_desc(irq);
-	unsigned char value = intc_irq_sense_table[type & IRQ_TYPE_SENSE_MASK];
-	struct intc_handle_int *ihp;
-	unsigned long addr;
-
-	if (!value)
-		return -EINVAL;
-
-	ihp = intc_find_irq(d->sense, d->nr_sense, irq);
-	if (ihp) {
-		addr = INTC_REG(d, _INTC_ADDR_E(ihp->handle), 0);
-		intc_reg_fns[_INTC_FN(ihp->handle)](addr, ihp->handle, value);
-	}
-	return 0;
-}
-
-static unsigned int __init intc_get_reg(struct intc_desc_int *d,
-				 unsigned long address)
-{
-	unsigned int k;
-
-	for (k = 0; k < d->nr_reg; k++) {
-		if (d->reg[k] == address)
-			return k;
-	}
-
-	BUG();
-	return 0;
-}
-
-static intc_enum __init intc_grp_id(struct intc_desc *desc,
-				    intc_enum enum_id)
-{
-	struct intc_group *g = desc->groups;
-	unsigned int i, j;
-
-	for (i = 0; g && enum_id && i < desc->nr_groups; i++) {
-		g = desc->groups + i;
-
-		for (j = 0; g->enum_ids[j]; j++) {
-			if (g->enum_ids[j] != enum_id)
-				continue;
-
-			return g->enum_id;
-		}
-	}
-
-	return 0;
-}
-
-static unsigned int __init intc_mask_data(struct intc_desc *desc,
-					  struct intc_desc_int *d,
-					  intc_enum enum_id, int do_grps)
-{
-	struct intc_mask_reg *mr = desc->mask_regs;
-	unsigned int i, j, fn, mode;
-	unsigned long reg_e, reg_d;
-
-	for (i = 0; mr && enum_id && i < desc->nr_mask_regs; i++) {
-		mr = desc->mask_regs + i;
-
-		for (j = 0; j < ARRAY_SIZE(mr->enum_ids); j++) {
-			if (mr->enum_ids[j] != enum_id)
-				continue;
-
-			if (mr->set_reg && mr->clr_reg) {
-				fn = REG_FN_WRITE_BASE;
-				mode = MODE_DUAL_REG;
-				reg_e = mr->clr_reg;
-				reg_d = mr->set_reg;
-			} else {
-				fn = REG_FN_MODIFY_BASE;
-				if (mr->set_reg) {
-					mode = MODE_ENABLE_REG;
-					reg_e = mr->set_reg;
-					reg_d = mr->set_reg;
-				} else {
-					mode = MODE_MASK_REG;
-					reg_e = mr->clr_reg;
-					reg_d = mr->clr_reg;
-				}
-			}
-
-			fn += (mr->reg_width >> 3) - 1;
-			return _INTC_MK(fn, mode,
-					intc_get_reg(d, reg_e),
-					intc_get_reg(d, reg_d),
-					1,
-					(mr->reg_width - 1) - j);
-		}
-	}
-
-	if (do_grps)
-		return intc_mask_data(desc, d, intc_grp_id(desc, enum_id), 0);
-
-	return 0;
-}
-
-static unsigned int __init intc_prio_data(struct intc_desc *desc,
-					  struct intc_desc_int *d,
-					  intc_enum enum_id, int do_grps)
-{
-	struct intc_prio_reg *pr = desc->prio_regs;
-	unsigned int i, j, fn, mode, bit;
-	unsigned long reg_e, reg_d;
-
-	for (i = 0; pr && enum_id && i < desc->nr_prio_regs; i++) {
-		pr = desc->prio_regs + i;
-
-		for (j = 0; j < ARRAY_SIZE(pr->enum_ids); j++) {
-			if (pr->enum_ids[j] != enum_id)
-				continue;
-
-			if (pr->set_reg && pr->clr_reg) {
-				fn = REG_FN_WRITE_BASE;
-				mode = MODE_PCLR_REG;
-				reg_e = pr->set_reg;
-				reg_d = pr->clr_reg;
-			} else {
-				fn = REG_FN_MODIFY_BASE;
-				mode = MODE_PRIO_REG;
-				if (!pr->set_reg)
-					BUG();
-				reg_e = pr->set_reg;
-				reg_d = pr->set_reg;
-			}
-
-			fn += (pr->reg_width >> 3) - 1;
-
-			BUG_ON((j + 1) * pr->field_width > pr->reg_width);
-
-			bit = pr->reg_width - ((j + 1) * pr->field_width);
-
-			return _INTC_MK(fn, mode,
-					intc_get_reg(d, reg_e),
-					intc_get_reg(d, reg_d),
-					pr->field_width, bit);
-		}
-	}
-
-	if (do_grps)
-		return intc_prio_data(desc, d, intc_grp_id(desc, enum_id), 0);
-
-	return 0;
-}
-
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-static unsigned int __init intc_ack_data(struct intc_desc *desc,
-					  struct intc_desc_int *d,
-					  intc_enum enum_id)
-{
-	struct intc_mask_reg *mr = desc->ack_regs;
-	unsigned int i, j, fn, mode;
-	unsigned long reg_e, reg_d;
-
-	for (i = 0; mr && enum_id && i < desc->nr_ack_regs; i++) {
-		mr = desc->ack_regs + i;
-
-		for (j = 0; j < ARRAY_SIZE(mr->enum_ids); j++) {
-			if (mr->enum_ids[j] != enum_id)
-				continue;
-
-			fn = REG_FN_MODIFY_BASE;
-			mode = MODE_ENABLE_REG;
-			reg_e = mr->set_reg;
-			reg_d = mr->set_reg;
-
-			fn += (mr->reg_width >> 3) - 1;
-			return _INTC_MK(fn, mode,
-					intc_get_reg(d, reg_e),
-					intc_get_reg(d, reg_d),
-					1,
-					(mr->reg_width - 1) - j);
-		}
-	}
-
-	return 0;
-}
-#endif
-
-static unsigned int __init intc_sense_data(struct intc_desc *desc,
-					   struct intc_desc_int *d,
-					   intc_enum enum_id)
-{
-	struct intc_sense_reg *sr = desc->sense_regs;
-	unsigned int i, j, fn, bit;
-
-	for (i = 0; sr && enum_id && i < desc->nr_sense_regs; i++) {
-		sr = desc->sense_regs + i;
-
-		for (j = 0; j < ARRAY_SIZE(sr->enum_ids); j++) {
-			if (sr->enum_ids[j] != enum_id)
-				continue;
-
-			fn = REG_FN_MODIFY_BASE;
-			fn += (sr->reg_width >> 3) - 1;
-
-			BUG_ON((j + 1) * sr->field_width > sr->reg_width);
-
-			bit = sr->reg_width - ((j + 1) * sr->field_width);
-
-			return _INTC_MK(fn, 0, intc_get_reg(d, sr->reg),
-					0, sr->field_width, bit);
-		}
-	}
-
-	return 0;
-}
-
-static void __init intc_register_irq(struct intc_desc *desc,
-				     struct intc_desc_int *d,
-				     intc_enum enum_id,
-				     unsigned int irq)
-{
-	struct intc_handle_int *hp;
-	unsigned int data[2], primary;
-
-	/* Prefer single interrupt source bitmap over other combinations:
-	 * 1. bitmap, single interrupt source
-	 * 2. priority, single interrupt source
-	 * 3. bitmap, multiple interrupt sources (groups)
-	 * 4. priority, multiple interrupt sources (groups)
-	 */
-
-	data[0] = intc_mask_data(desc, d, enum_id, 0);
-	data[1] = intc_prio_data(desc, d, enum_id, 0);
-
-	primary = 0;
-	if (!data[0] && data[1])
-		primary = 1;
-
-	data[0] = data[0] ? data[0] : intc_mask_data(desc, d, enum_id, 1);
-	data[1] = data[1] ? data[1] : intc_prio_data(desc, d, enum_id, 1);
-
-	if (!data[primary])
-		primary ^= 1;
-
-	BUG_ON(!data[primary]); /* must have primary masking method */
-
-	disable_irq_nosync(irq);
-	set_irq_chip_and_handler_name(irq, &d->chip,
-				      handle_level_irq, "level");
-	set_irq_chip_data(irq, (void *)data[primary]);
-
-	/* set priority level
-	 * - this needs to be at least 2 for 5-bit priorities on 7780
-	 */
-	intc_prio_level[irq] = 2;
-
-	/* enable secondary masking method if present */
-	if (data[!primary])
-		_intc_enable(irq, data[!primary]);
-
-	/* add irq to d->prio list if priority is available */
-	if (data[1]) {
-		hp = d->prio + d->nr_prio;
-		hp->irq = irq;
-		hp->handle = data[1];
-
-		if (primary) {
-			/*
-			 * only secondary priority should access registers, so
-			 * set _INTC_FN(h) = REG_FN_ERR for intc_set_priority()
-			 */
-
-			hp->handle &= ~_INTC_MK(0x0f, 0, 0, 0, 0, 0);
-			hp->handle |= _INTC_MK(REG_FN_ERR, 0, 0, 0, 0, 0);
-		}
-		d->nr_prio++;
-	}
-
-	/* add irq to d->sense list if sense is available */
-	data[0] = intc_sense_data(desc, d, enum_id);
-	if (data[0]) {
-		(d->sense + d->nr_sense)->irq = irq;
-		(d->sense + d->nr_sense)->handle = data[0];
-		d->nr_sense++;
-	}
-
-	/* irq should be disabled by default */
-	d->chip.mask(irq);
-
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-	if (desc->ack_regs)
-		ack_handle[irq] = intc_ack_data(desc, d, enum_id);
-#endif
-}
-
-static unsigned int __init save_reg(struct intc_desc_int *d,
-				    unsigned int cnt,
-				    unsigned long value,
-				    unsigned int smp)
-{
-	if (value) {
-		d->reg[cnt] = value;
-#ifdef CONFIG_SMP
-		d->smp[cnt] = smp;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-
-void __init register_intc_controller(struct intc_desc *desc)
-{
-	unsigned int i, k, smp;
-	struct intc_desc_int *d;
-
-	d = alloc_bootmem(sizeof(*d));
-
-	d->nr_reg = desc->mask_regs ? desc->nr_mask_regs * 2 : 0;
-	d->nr_reg += desc->prio_regs ? desc->nr_prio_regs * 2 : 0;
-	d->nr_reg += desc->sense_regs ? desc->nr_sense_regs : 0;
-
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-	d->nr_reg += desc->ack_regs ? desc->nr_ack_regs : 0;
-#endif
-	d->reg = alloc_bootmem(d->nr_reg * sizeof(*d->reg));
-#ifdef CONFIG_SMP
-	d->smp = alloc_bootmem(d->nr_reg * sizeof(*d->smp));
-#endif
-	k = 0;
-
-	if (desc->mask_regs) {
-		for (i = 0; i < desc->nr_mask_regs; i++) {
-			smp = IS_SMP(desc->mask_regs[i]);
-			k += save_reg(d, k, desc->mask_regs[i].set_reg, smp);
-			k += save_reg(d, k, desc->mask_regs[i].clr_reg, smp);
-		}
-	}
-
-	if (desc->prio_regs) {
-		d->prio = alloc_bootmem(desc->nr_vectors * sizeof(*d->prio));
-
-		for (i = 0; i < desc->nr_prio_regs; i++) {
-			smp = IS_SMP(desc->prio_regs[i]);
-			k += save_reg(d, k, desc->prio_regs[i].set_reg, smp);
-			k += save_reg(d, k, desc->prio_regs[i].clr_reg, smp);
-		}
-	}
-
-	if (desc->sense_regs) {
-		d->sense = alloc_bootmem(desc->nr_vectors * sizeof(*d->sense));
-
-		for (i = 0; i < desc->nr_sense_regs; i++) {
-			k += save_reg(d, k, desc->sense_regs[i].reg, 0);
-		}
-	}
-
-	d->chip.name = desc->name;
-	d->chip.mask = intc_disable;
-	d->chip.unmask = intc_enable;
-	d->chip.mask_ack = intc_disable;
-	d->chip.set_type = intc_set_sense;
-
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-	if (desc->ack_regs) {
-		for (i = 0; i < desc->nr_ack_regs; i++)
-			k += save_reg(d, k, desc->ack_regs[i].set_reg, 0);
-
-		d->chip.mask_ack = intc_mask_ack;
-	}
-#endif
-
-	BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */
-
-	for (i = 0; i < desc->nr_vectors; i++) {
-		struct intc_vect *vect = desc->vectors + i;
-
-		intc_register_irq(desc, d, vect->enum_id, evt2irq(vect->vect));
-	}
-}