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[PATCH] sh: IRQ handler updates

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This moves the various IRQ controller drivers into a new subdirectory, and
also extends the INTC2 IRQ handler to also deal with SH7760 and SH7780
interrupts, rather than just ST-40.

The old CONFIG_SH_GENERIC has also been removed from the IRQ definitions, as
new ports are expected to be based off of CONFIG_SH_UNKNOWN.  Since there are
plenty of incompatible machvecs, CONFIG_SH_GENERIC doesn't make sense anymore.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Mundt 2006-01-16 22:14:14 -08:00 committed by Linus Torvalds
parent 9d44190eae
commit bf3a00f88c
10 changed files with 966 additions and 520 deletions
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9
arch/sh/kernel/cpu/Makefile
View file

@ -2,15 +2,12 @@
# Makefile for the Linux/SuperH CPU-specifc backends.
#
obj-y := irq_ipr.o irq_imask.o init.o bus.o
obj-y += irq/ init.o bus.o clock.o
obj-$(CONFIG_CPU_SH2) += sh2/
obj-$(CONFIG_CPU_SH3) += sh3/
obj-$(CONFIG_CPU_SH4) += sh4/
obj-$(CONFIG_SH_RTC) += rtc.o
obj-$(CONFIG_SH_RTC) += rtc.o
obj-$(CONFIG_UBC_WAKEUP) += ubc.o
obj-$(CONFIG_SH_ADC) += adc.o
USE_STANDARD_AS_RULE := true
obj-$(CONFIG_SH_ADC) += adc.o

7
arch/sh/kernel/cpu/irq/Makefile Normal file
View file

@ -0,0 +1,7 @@
#
# Makefile for the Linux/SuperH CPU-specifc IRQ handlers.
#
obj-y += ipr.o imask.o
obj-$(CONFIG_CPU_HAS_PINT_IRQ) += pint.o
obj-$(CONFIG_CPU_HAS_INTC2_IRQ) += intc2.o

16
arch/sh/kernel/cpu/irq_imask.c → arch/sh/kernel/cpu/irq/imask.c
View file

@ -1,16 +1,12 @@
/* $Id: irq_imask.c,v 1.1.2.1 2002/11/17 10:53:43 mrbrown Exp $
*
* linux/arch/sh/kernel/irq_imask.c
/*
* arch/sh/kernel/cpu/irq/imask.c
*
* Copyright (C) 1999, 2000 Niibe Yutaka
*
* Simple interrupt handling using IMASK of SR register.
*
*/
/* NOTE: Will not work on level 15 */
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/kernel_stat.h>
@ -19,13 +15,11 @@
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <linux/spinlock.h>
#include <linux/cache.h>
#include <linux/irq.h>
#include <asm/system.h>
#include <asm/irq.h>
/* Bitmap of IRQ masked */
static unsigned long imask_mask = 0x7fff;
@ -40,7 +34,7 @@ static void end_imask_irq(unsigned int irq);
#define IMASK_PRIORITY 15
static unsigned int startup_imask_irq(unsigned int irq)
{
{
/* Nothing to do */
return 0; /* never anything pending */
}

284
arch/sh/kernel/cpu/irq/intc2.c Normal file
View file

@ -0,0 +1,284 @@
/*
* Interrupt handling for INTC2-based IRQ.
*
* Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
* Copyright (C) 2005, 2006 Paul Mundt (lethal@linux-sh.org)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* These are the "new Hitachi style" interrupts, as present on the
* Hitachi 7751, the STM ST40 STB1, SH7760, and SH7780.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/machvec.h>
struct intc2_data {
unsigned char msk_offset;
unsigned char msk_shift;
int (*clear_irq) (int);
};
static struct intc2_data intc2_data[NR_INTC2_IRQS];
static void enable_intc2_irq(unsigned int irq);
static void disable_intc2_irq(unsigned int irq);
/* shutdown is same as "disable" */
#define shutdown_intc2_irq disable_intc2_irq
static void mask_and_ack_intc2(unsigned int);
static void end_intc2_irq(unsigned int irq);
static unsigned int startup_intc2_irq(unsigned int irq)
{
enable_intc2_irq(irq);
return 0; /* never anything pending */
}
static struct hw_interrupt_type intc2_irq_type = {
.typename = "INTC2-IRQ",
.startup = startup_intc2_irq,
.shutdown = shutdown_intc2_irq,
.enable = enable_intc2_irq,
.disable = disable_intc2_irq,
.ack = mask_and_ack_intc2,
.end = end_intc2_irq
};
static void disable_intc2_irq(unsigned int irq)
{
int irq_offset = irq - INTC2_FIRST_IRQ;
int msk_shift, msk_offset;
/* Sanity check */
if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
return;
msk_shift = intc2_data[irq_offset].msk_shift;
msk_offset = intc2_data[irq_offset].msk_offset;
ctrl_outl(1 << msk_shift,
INTC2_BASE + INTC2_INTMSK_OFFSET + msk_offset);
}
static void enable_intc2_irq(unsigned int irq)
{
int irq_offset = irq - INTC2_FIRST_IRQ;
int msk_shift, msk_offset;
/* Sanity check */
if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
return;
msk_shift = intc2_data[irq_offset].msk_shift;
msk_offset = intc2_data[irq_offset].msk_offset;
ctrl_outl(1 << msk_shift,
INTC2_BASE + INTC2_INTMSKCLR_OFFSET + msk_offset);
}
static void mask_and_ack_intc2(unsigned int irq)
{
disable_intc2_irq(irq);
}
static void end_intc2_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
enable_intc2_irq(irq);
if (unlikely(intc2_data[irq - INTC2_FIRST_IRQ].clear_irq))
intc2_data[irq - INTC2_FIRST_IRQ].clear_irq(irq);
}
/*
* Setup an INTC2 style interrupt.
* NOTE: Unlike IPR interrupts, parameters are not shifted by this code,
* allowing the use of the numbers straight out of the datasheet.
* For example:
* PIO1 which is INTPRI00[19,16] and INTMSK00[13]
* would be: ^ ^ ^ ^
* | | | |
* make_intc2_irq(84, 0, 16, 0, 13);
*/
void make_intc2_irq(unsigned int irq,
unsigned int ipr_offset, unsigned int ipr_shift,
unsigned int msk_offset, unsigned int msk_shift,
unsigned int priority)
{
int irq_offset = irq - INTC2_FIRST_IRQ;
unsigned int flags;
unsigned long ipr;
if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
return;
disable_irq_nosync(irq);
/* Fill the data we need */
intc2_data[irq_offset].msk_offset = msk_offset;
intc2_data[irq_offset].msk_shift = msk_shift;
intc2_data[irq_offset].clear_irq = NULL;
/* Set the priority level */
local_irq_save(flags);
ipr = ctrl_inl(INTC2_BASE + INTC2_INTPRI_OFFSET + ipr_offset);
ipr &= ~(0xf << ipr_shift);
ipr |= priority << ipr_shift;
ctrl_outl(ipr, INTC2_BASE + INTC2_INTPRI_OFFSET + ipr_offset);
local_irq_restore(flags);
irq_desc[irq].handler = &intc2_irq_type;
disable_intc2_irq(irq);
}
static struct intc2_init {
unsigned short irq;
unsigned char ipr_offset, ipr_shift;
unsigned char msk_offset, msk_shift;
unsigned char priority;
} intc2_init_data[] __initdata = {
#if defined(CONFIG_CPU_SUBTYPE_ST40)
{64, 0, 0, 0, 0, 13}, /* PCI serr */
{65, 0, 4, 0, 1, 13}, /* PCI err */
{66, 0, 4, 0, 2, 13}, /* PCI ad */
{67, 0, 4, 0, 3, 13}, /* PCI pwd down */
{72, 0, 8, 0, 5, 13}, /* DMAC INT0 */
{73, 0, 8, 0, 6, 13}, /* DMAC INT1 */
{74, 0, 8, 0, 7, 13}, /* DMAC INT2 */
{75, 0, 8, 0, 8, 13}, /* DMAC INT3 */
{76, 0, 8, 0, 9, 13}, /* DMAC INT4 */
{78, 0, 8, 0, 11, 13}, /* DMAC ERR */
{80, 0, 12, 0, 12, 13}, /* PIO0 */
{84, 0, 16, 0, 13, 13}, /* PIO1 */
{88, 0, 20, 0, 14, 13}, /* PIO2 */
{112, 4, 0, 4, 0, 13}, /* Mailbox */
#ifdef CONFIG_CPU_SUBTYPE_ST40GX1
{116, 4, 4, 4, 4, 13}, /* SSC0 */
{120, 4, 8, 4, 8, 13}, /* IR Blaster */
{124, 4, 12, 4, 12, 13}, /* USB host */
{128, 4, 16, 4, 16, 13}, /* Video processor BLITTER */
{132, 4, 20, 4, 20, 13}, /* UART0 */
{134, 4, 20, 4, 22, 13}, /* UART2 */
{136, 4, 24, 4, 24, 13}, /* IO_PIO0 */
{140, 4, 28, 4, 28, 13}, /* EMPI */
{144, 8, 0, 8, 0, 13}, /* MAFE */
{148, 8, 4, 8, 4, 13}, /* PWM */
{152, 8, 8, 8, 8, 13}, /* SSC1 */
{156, 8, 12, 8, 12, 13}, /* IO_PIO1 */
{160, 8, 16, 8, 16, 13}, /* USB target */
{164, 8, 20, 8, 20, 13}, /* UART1 */
{168, 8, 24, 8, 24, 13}, /* Teletext */
{172, 8, 28, 8, 28, 13}, /* VideoSync VTG */
{173, 8, 28, 8, 29, 13}, /* VideoSync DVP0 */
{174, 8, 28, 8, 30, 13}, /* VideoSync DVP1 */
#endif
#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
/*
* SH7760 INTC2-Style interrupts, vectors IRQ48-111 INTEVT 0x800-0xFE0
*/
/* INTPRIO0 | INTMSK0 */
{48, 0, 28, 0, 31, 3}, /* IRQ 4 */
{49, 0, 24, 0, 30, 3}, /* IRQ 3 */
{50, 0, 20, 0, 29, 3}, /* IRQ 2 */
{51, 0, 16, 0, 28, 3}, /* IRQ 1 */
/* 52-55 (INTEVT 0x880-0x8E0) unused/reserved */
/* INTPRIO4 | INTMSK0 */
{56, 4, 28, 0, 25, 3}, /* HCAN2_CHAN0 */
{57, 4, 24, 0, 24, 3}, /* HCAN2_CHAN1 */
{58, 4, 20, 0, 23, 3}, /* I2S_CHAN0 */
{59, 4, 16, 0, 22, 3}, /* I2S_CHAN1 */
{60, 4, 12, 0, 21, 3}, /* AC97_CHAN0 */
{61, 4, 8, 0, 20, 3}, /* AC97_CHAN1 */
{62, 4, 4, 0, 19, 3}, /* I2C_CHAN0 */
{63, 4, 0, 0, 18, 3}, /* I2C_CHAN1 */
/* INTPRIO8 | INTMSK0 */
{52, 8, 16, 0, 11, 3}, /* SCIF0_ERI_IRQ */
{53, 8, 16, 0, 10, 3}, /* SCIF0_RXI_IRQ */
{54, 8, 16, 0, 9, 3}, /* SCIF0_BRI_IRQ */
{55, 8, 16, 0, 8, 3}, /* SCIF0_TXI_IRQ */
{64, 8, 28, 0, 17, 3}, /* USBHI_IRQ */
{65, 8, 24, 0, 16, 3}, /* LCDC */
/* 66, 67 unused */
{68, 8, 20, 0, 14, 13}, /* DMABRGI0_IRQ */
{69, 8, 20, 0, 13, 13}, /* DMABRGI1_IRQ */
{70, 8, 20, 0, 12, 13}, /* DMABRGI2_IRQ */
/* 71 unused */
{72, 8, 12, 0, 7, 3}, /* SCIF1_ERI_IRQ */
{73, 8, 12, 0, 6, 3}, /* SCIF1_RXI_IRQ */
{74, 8, 12, 0, 5, 3}, /* SCIF1_BRI_IRQ */
{75, 8, 12, 0, 4, 3}, /* SCIF1_TXI_IRQ */
{76, 8, 8, 0, 3, 3}, /* SCIF2_ERI_IRQ */
{77, 8, 8, 0, 2, 3}, /* SCIF2_RXI_IRQ */
{78, 8, 8, 0, 1, 3}, /* SCIF2_BRI_IRQ */
{79, 8, 8, 0, 0, 3}, /* SCIF2_TXI_IRQ */
/* | INTMSK4 */
{80, 8, 4, 4, 23, 3}, /* SIM_ERI */
{81, 8, 4, 4, 22, 3}, /* SIM_RXI */
{82, 8, 4, 4, 21, 3}, /* SIM_TXI */
{83, 8, 4, 4, 20, 3}, /* SIM_TEI */
{84, 8, 0, 4, 19, 3}, /* HSPII */
/* INTPRIOC | INTMSK4 */
/* 85-87 unused/reserved */
{88, 12, 20, 4, 18, 3}, /* MMCI0 */
{89, 12, 20, 4, 17, 3}, /* MMCI1 */
{90, 12, 20, 4, 16, 3}, /* MMCI2 */
{91, 12, 20, 4, 15, 3}, /* MMCI3 */
{92, 12, 12, 4, 6, 3}, /* MFI (unsure, bug? in my 7760 manual*/
/* 93-107 reserved/undocumented */
{108,12, 4, 4, 1, 3}, /* ADC */
{109,12, 0, 4, 0, 3}, /* CMTI */
/* 110-111 reserved/unused */
#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
{ TIMER_IRQ, 0, 24, 0, INTC_TMU0_MSK, 2},
#ifdef CONFIG_SH_RTC
{ RTC_IRQ, 4, 0, 0, INTC_RTC_MSK, TIMER_PRIORITY },
#endif
{ SCIF0_ERI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
{ SCIF0_RXI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
{ SCIF0_BRI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
{ SCIF0_TXI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
{ SCIF1_ERI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
{ SCIF1_RXI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
{ SCIF1_BRI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
{ SCIF1_TXI_IRQ, 8, 16, 0, INTC_SCIF1_MSK, SCIF1_PRIORITY },
{ PCIC0_IRQ, 0x10, 8, 0, INTC_PCIC0_MSK, PCIC0_PRIORITY },
{ PCIC1_IRQ, 0x10, 0, 0, INTC_PCIC1_MSK, PCIC1_PRIORITY },
{ PCIC2_IRQ, 0x14, 24, 0, INTC_PCIC2_MSK, PCIC2_PRIORITY },
{ PCIC3_IRQ, 0x14, 16, 0, INTC_PCIC3_MSK, PCIC3_PRIORITY },
{ PCIC4_IRQ, 0x14, 8, 0, INTC_PCIC4_MSK, PCIC4_PRIORITY },
#endif
};
void __init init_IRQ_intc2(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(intc2_init_data); i++) {
struct intc2_init *p = intc2_init_data + i;
make_intc2_irq(p->irq, p->ipr_offset, p->ipr_shift,
p-> msk_offset, p->msk_shift, p->priority);
}
}
/* Adds a termination callback to the interrupt */
void intc2_add_clear_irq(int irq, int (*fn)(int))
{
if (unlikely(irq < INTC2_FIRST_IRQ))
return;
intc2_data[irq - INTC2_FIRST_IRQ].clear_irq = fn;
}

217
arch/sh/kernel/cpu/irq_ipr.c → arch/sh/kernel/cpu/irq/ipr.c
View file

@ -1,6 +1,5 @@
/* $Id: irq_ipr.c,v 1.1.2.1 2002/11/17 10:53:43 mrbrown Exp $
*
* linux/arch/sh/kernel/irq_ipr.c
/*
* arch/sh/kernel/cpu/irq/ipr.c
*
* Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi
* Copyright (C) 2000 Kazumoto Kojima
@ -109,7 +108,8 @@ static void end_ipr_irq(unsigned int irq)
enable_ipr_irq(irq);
}
void make_ipr_irq(unsigned int irq, unsigned int addr, int pos, int priority)
void make_ipr_irq(unsigned int irq, unsigned int addr, int pos,
int priority, int maskpos)
{
disable_irq_nosync(irq);
ipr_data[irq].addr = addr;
@ -120,126 +120,47 @@ void make_ipr_irq(unsigned int irq, unsigned int addr, int pos, int priority)
disable_ipr_irq(irq);
}
#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
defined(CONFIG_CPU_SUBTYPE_SH7707) || \
defined(CONFIG_CPU_SUBTYPE_SH7709)
static unsigned char pint_map[256];
static unsigned long portcr_mask = 0;
static void enable_pint_irq(unsigned int irq);
static void disable_pint_irq(unsigned int irq);
/* shutdown is same as "disable" */
#define shutdown_pint_irq disable_pint_irq
static void mask_and_ack_pint(unsigned int);
static void end_pint_irq(unsigned int irq);
static unsigned int startup_pint_irq(unsigned int irq)
{
enable_pint_irq(irq);
return 0; /* never anything pending */
}
static struct hw_interrupt_type pint_irq_type = {
.typename = "PINT-IRQ",
.startup = startup_pint_irq,
.shutdown = shutdown_pint_irq,
.enable = enable_pint_irq,
.disable = disable_pint_irq,
.ack = mask_and_ack_pint,
.end = end_pint_irq
};
static void disable_pint_irq(unsigned int irq)
{
unsigned long val, flags;
local_irq_save(flags);
val = ctrl_inw(INTC_INTER);
val &= ~(1 << (irq - PINT_IRQ_BASE));
ctrl_outw(val, INTC_INTER); /* disable PINTn */
portcr_mask &= ~(3 << (irq - PINT_IRQ_BASE)*2);
local_irq_restore(flags);
}
static void enable_pint_irq(unsigned int irq)
{
unsigned long val, flags;
local_irq_save(flags);
val = ctrl_inw(INTC_INTER);
val |= 1 << (irq - PINT_IRQ_BASE);
ctrl_outw(val, INTC_INTER); /* enable PINTn */
portcr_mask |= 3 << (irq - PINT_IRQ_BASE)*2;
local_irq_restore(flags);
}
static void mask_and_ack_pint(unsigned int irq)
{
disable_pint_irq(irq);
}
static void end_pint_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
enable_pint_irq(irq);
}
void make_pint_irq(unsigned int irq)
{
disable_irq_nosync(irq);
irq_desc[irq].handler = &pint_irq_type;
disable_pint_irq(irq);
}
#endif
void __init init_IRQ(void)
{
#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
defined(CONFIG_CPU_SUBTYPE_SH7707) || \
defined(CONFIG_CPU_SUBTYPE_SH7709)
int i;
#endif
make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY);
make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY);
#ifndef CONFIG_CPU_SUBTYPE_SH7780
make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY, 0);
make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY, 0);
#if defined(CONFIG_SH_RTC)
make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY);
make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY, 0);
#endif
#ifdef SCI_ERI_IRQ
make_ipr_irq(SCI_ERI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY);
make_ipr_irq(SCI_RXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY);
make_ipr_irq(SCI_TXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY);
make_ipr_irq(SCI_ERI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY, 0);
make_ipr_irq(SCI_RXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY, 0);
make_ipr_irq(SCI_TXI_IRQ, SCI_IPR_ADDR, SCI_IPR_POS, SCI_PRIORITY, 0);
#endif
#ifdef SCIF1_ERI_IRQ
make_ipr_irq(SCIF1_ERI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY);
make_ipr_irq(SCIF1_RXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY);
make_ipr_irq(SCIF1_BRI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY);
make_ipr_irq(SCIF1_TXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY);
make_ipr_irq(SCIF1_ERI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
make_ipr_irq(SCIF1_RXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
make_ipr_irq(SCIF1_BRI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
make_ipr_irq(SCIF1_TXI_IRQ, SCIF1_IPR_ADDR, SCIF1_IPR_POS, SCIF1_PRIORITY, 0);
#endif
#if defined(CONFIG_CPU_SUBTYPE_SH7300)
make_ipr_irq(SCIF0_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY);
make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
make_ipr_irq(VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
make_ipr_irq(SCIF0_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY, 0);
make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY, 0);
make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY, 0);
make_ipr_irq(VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY, 0);
#endif
#ifdef SCIF_ERI_IRQ
make_ipr_irq(SCIF_ERI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY);
make_ipr_irq(SCIF_RXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY);
make_ipr_irq(SCIF_BRI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY);
make_ipr_irq(SCIF_TXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY);
make_ipr_irq(SCIF_ERI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
make_ipr_irq(SCIF_RXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
make_ipr_irq(SCIF_BRI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
make_ipr_irq(SCIF_TXI_IRQ, SCIF_IPR_ADDR, SCIF_IPR_POS, SCIF_PRIORITY, 0);
#endif
#ifdef IRDA_ERI_IRQ
make_ipr_irq(IRDA_ERI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY);
make_ipr_irq(IRDA_RXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY);
make_ipr_irq(IRDA_BRI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY);
make_ipr_irq(IRDA_TXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY);
make_ipr_irq(IRDA_ERI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
make_ipr_irq(IRDA_RXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
make_ipr_irq(IRDA_BRI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
make_ipr_irq(IRDA_TXI_IRQ, IRDA_IPR_ADDR, IRDA_IPR_POS, IRDA_PRIORITY, 0);
#endif
#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \
@ -254,86 +175,32 @@ void __init init_IRQ(void)
* You should set corresponding bits of PFC to "00"
* to enable these interrupts.
*/
make_ipr_irq(IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, IRQ0_PRIORITY);
make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY);
make_ipr_irq(IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY);
make_ipr_irq(IRQ3_IRQ, IRQ3_IPR_ADDR, IRQ3_IPR_POS, IRQ3_PRIORITY);
make_ipr_irq(IRQ4_IRQ, IRQ4_IPR_ADDR, IRQ4_IPR_POS, IRQ4_PRIORITY);
make_ipr_irq(IRQ5_IRQ, IRQ5_IPR_ADDR, IRQ5_IPR_POS, IRQ5_PRIORITY);
#if !defined(CONFIG_CPU_SUBTYPE_SH7300)
make_ipr_irq(PINT0_IRQ, PINT0_IPR_ADDR, PINT0_IPR_POS, PINT0_PRIORITY);
make_ipr_irq(PINT8_IRQ, PINT8_IPR_ADDR, PINT8_IPR_POS, PINT8_PRIORITY);
enable_ipr_irq(PINT0_IRQ);
enable_ipr_irq(PINT8_IRQ);
make_ipr_irq(IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, IRQ0_PRIORITY, 0);
make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY, 0);
make_ipr_irq(IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY, 0);
make_ipr_irq(IRQ3_IRQ, IRQ3_IPR_ADDR, IRQ3_IPR_POS, IRQ3_PRIORITY, 0);
make_ipr_irq(IRQ4_IRQ, IRQ4_IPR_ADDR, IRQ4_IPR_POS, IRQ4_PRIORITY, 0);
make_ipr_irq(IRQ5_IRQ, IRQ5_IPR_ADDR, IRQ5_IPR_POS, IRQ5_PRIORITY, 0);
#endif
#endif
for(i = 0; i < 16; i++)
make_pint_irq(PINT_IRQ_BASE + i);
for(i = 0; i < 256; i++)
{
if(i & 1) pint_map[i] = 0;
else if(i & 2) pint_map[i] = 1;
else if(i & 4) pint_map[i] = 2;
else if(i & 8) pint_map[i] = 3;
else if(i & 0x10) pint_map[i] = 4;
else if(i & 0x20) pint_map[i] = 5;
else if(i & 0x40) pint_map[i] = 6;
else if(i & 0x80) pint_map[i] = 7;
}
#endif /* !CONFIG_CPU_SUBTYPE_SH7300 */
#endif /* CONFIG_CPU_SUBTYPE_SH7707 || CONFIG_CPU_SUBTYPE_SH7709 || CONFIG_CPU_SUBTYPE_SH7300*/
#ifdef CONFIG_CPU_HAS_PINT_IRQ
init_IRQ_pint();
#endif
#ifdef CONFIG_CPU_SUBTYPE_ST40
#ifdef CONFIG_CPU_HAS_INTC2_IRQ
init_IRQ_intc2();
#endif
/* Perform the machine specific initialisation */
if (sh_mv.mv_init_irq != NULL) {
if (sh_mv.mv_init_irq != NULL)
sh_mv.mv_init_irq();
}
}
#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \
defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
#if !defined(CONFIG_CPU_HAS_PINT_IRQ)
int ipr_irq_demux(int irq)
{
#if !defined(CONFIG_CPU_SUBTYPE_SH7300)
unsigned long creg, dreg, d, sav;
if(irq == PINT0_IRQ)
{
#if defined(CONFIG_CPU_SUBTYPE_SH7707)
creg = PORT_PACR;
dreg = PORT_PADR;
#else
creg = PORT_PCCR;
dreg = PORT_PCDR;
#endif
sav = ctrl_inw(creg);
ctrl_outw(sav | portcr_mask, creg);
d = (~ctrl_inb(dreg) ^ ctrl_inw(INTC_ICR2)) & ctrl_inw(INTC_INTER) & 0xff;
ctrl_outw(sav, creg);
if(d == 0) return irq;
return PINT_IRQ_BASE + pint_map[d];
}
else if(irq == PINT8_IRQ)
{
#if defined(CONFIG_CPU_SUBTYPE_SH7707)
creg = PORT_PBCR;
dreg = PORT_PBDR;
#else
creg = PORT_PFCR;
dreg = PORT_PFDR;
#endif
sav = ctrl_inw(creg);
ctrl_outw(sav | (portcr_mask >> 16), creg);
d = (~ctrl_inb(dreg) ^ (ctrl_inw(INTC_ICR2) >> 8)) & (ctrl_inw(INTC_INTER) >> 8) & 0xff;
ctrl_outw(sav, creg);
if(d == 0) return irq;
return PINT_IRQ_BASE + 8 + pint_map[d];
}
#endif
return irq;
}
#endif
EXPORT_SYMBOL(make_ipr_irq);

169
arch/sh/kernel/cpu/irq/pint.c Normal file
View file

@ -0,0 +1,169 @@
/*
* arch/sh/kernel/cpu/irq/pint.c - Interrupt handling for PINT-based IRQs.
*
* Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi
* Copyright (C) 2000 Kazumoto Kojima
* Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
*
* 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/config.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/machvec.h>
static unsigned char pint_map[256];
static unsigned long portcr_mask;
static void enable_pint_irq(unsigned int irq);
static void disable_pint_irq(unsigned int irq);
/* shutdown is same as "disable" */
#define shutdown_pint_irq disable_pint_irq
static void mask_and_ack_pint(unsigned int);
static void end_pint_irq(unsigned int irq);
static unsigned int startup_pint_irq(unsigned int irq)
{
enable_pint_irq(irq);
return 0; /* never anything pending */
}
static struct hw_interrupt_type pint_irq_type = {
.typename = "PINT-IRQ",
.startup = startup_pint_irq,
.shutdown = shutdown_pint_irq,
.enable = enable_pint_irq,
.disable = disable_pint_irq,
.ack = mask_and_ack_pint,
.end = end_pint_irq
};
static void disable_pint_irq(unsigned int irq)
{
unsigned long val, flags;
local_irq_save(flags);
val = ctrl_inw(INTC_INTER);
val &= ~(1 << (irq - PINT_IRQ_BASE));
ctrl_outw(val, INTC_INTER); /* disable PINTn */
portcr_mask &= ~(3 << (irq - PINT_IRQ_BASE)*2);
local_irq_restore(flags);
}
static void enable_pint_irq(unsigned int irq)
{
unsigned long val, flags;
local_irq_save(flags);
val = ctrl_inw(INTC_INTER);
val |= 1 << (irq - PINT_IRQ_BASE);
ctrl_outw(val, INTC_INTER); /* enable PINTn */
portcr_mask |= 3 << (irq - PINT_IRQ_BASE)*2;
local_irq_restore(flags);
}
static void mask_and_ack_pint(unsigned int irq)
{
disable_pint_irq(irq);
}
static void end_pint_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
enable_pint_irq(irq);
}
void make_pint_irq(unsigned int irq)
{
disable_irq_nosync(irq);
irq_desc[irq].handler = &pint_irq_type;
disable_pint_irq(irq);
}
void __init init_IRQ_pint(void)
{
int i;
make_ipr_irq(PINT0_IRQ, PINT0_IPR_ADDR, PINT0_IPR_POS, PINT0_PRIORITY);
make_ipr_irq(PINT8_IRQ, PINT8_IPR_ADDR, PINT8_IPR_POS, PINT8_PRIORITY);
enable_irq(PINT0_IRQ);
enable_irq(PINT8_IRQ);
for(i = 0; i < 16; i++)
make_pint_irq(PINT_IRQ_BASE + i);
for(i = 0; i < 256; i++) {
if (i & 1)
pint_map[i] = 0;
else if (i & 2)
pint_map[i] = 1;
else if (i & 4)
pint_map[i] = 2;
else if (i & 8)
pint_map[i] = 3;
else if (i & 0x10)
pint_map[i] = 4;
else if (i & 0x20)
pint_map[i] = 5;
else if (i & 0x40)
pint_map[i] = 6;
else if (i & 0x80)
pint_map[i] = 7;
}
}
int ipr_irq_demux(int irq)
{
unsigned long creg, dreg, d, sav;
if (irq == PINT0_IRQ) {
#if defined(CONFIG_CPU_SUBTYPE_SH7707)
creg = PORT_PACR;
dreg = PORT_PADR;
#else
creg = PORT_PCCR;
dreg = PORT_PCDR;
#endif
sav = ctrl_inw(creg);
ctrl_outw(sav | portcr_mask, creg);
d = (~ctrl_inb(dreg) ^ ctrl_inw(INTC_ICR2)) &
ctrl_inw(INTC_INTER) & 0xff;
ctrl_outw(sav, creg);
if (d == 0)
return irq;
return PINT_IRQ_BASE + pint_map[d];
} else if (irq == PINT8_IRQ) {
#if defined(CONFIG_CPU_SUBTYPE_SH7707)
creg = PORT_PBCR;
dreg = PORT_PBDR;
#else
creg = PORT_PFCR;
dreg = PORT_PFDR;
#endif
sav = ctrl_inw(creg);
ctrl_outw(sav | (portcr_mask >> 16), creg);
d = (~ctrl_inb(dreg) ^ (ctrl_inw(INTC_ICR2) >> 8)) &
(ctrl_inw(INTC_INTER) >> 8) & 0xff;
ctrl_outw(sav, creg);
if (d == 0)
return irq;
return PINT_IRQ_BASE + 8 + pint_map[d];
}
return irq;
}

222
arch/sh/kernel/cpu/sh4/irq_intc2.c
View file

@ -1,222 +0,0 @@
/*
* linux/arch/sh/kernel/irq_intc2.c
*
* Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Interrupt handling for INTC2-based IRQ.
*
* These are the "new Hitachi style" interrupts, as present on the
* Hitachi 7751 and the STM ST40 STB1.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/machvec.h>
struct intc2_data {
unsigned char msk_offset;
unsigned char msk_shift;
#ifdef CONFIG_CPU_SUBTYPE_ST40
int (*clear_irq) (int);
#endif
};
static struct intc2_data intc2_data[NR_INTC2_IRQS];
static void enable_intc2_irq(unsigned int irq);
static void disable_intc2_irq(unsigned int irq);
/* shutdown is same as "disable" */
#define shutdown_intc2_irq disable_intc2_irq
static void mask_and_ack_intc2(unsigned int);
static void end_intc2_irq(unsigned int irq);
static unsigned int startup_intc2_irq(unsigned int irq)
{
enable_intc2_irq(irq);
return 0; /* never anything pending */
}
static struct hw_interrupt_type intc2_irq_type = {
.typename = "INTC2-IRQ",
.startup = startup_intc2_irq,
.shutdown = shutdown_intc2_irq,
.enable = enable_intc2_irq,
.disable = disable_intc2_irq,
.ack = mask_and_ack_intc2,
.end = end_intc2_irq
};
static void disable_intc2_irq(unsigned int irq)
{
int irq_offset = irq - INTC2_FIRST_IRQ;
int msk_shift, msk_offset;
// Sanity check
if((irq_offset<0) || (irq_offset>=NR_INTC2_IRQS))
return;
msk_shift = intc2_data[irq_offset].msk_shift;
msk_offset = intc2_data[irq_offset].msk_offset;
ctrl_outl(1<<msk_shift,
INTC2_BASE+INTC2_INTMSK_OFFSET+msk_offset);
}
static void enable_intc2_irq(unsigned int irq)
{
int irq_offset = irq - INTC2_FIRST_IRQ;
int msk_shift, msk_offset;
/* Sanity check */
if((irq_offset<0) || (irq_offset>=NR_INTC2_IRQS))
return;
msk_shift = intc2_data[irq_offset].msk_shift;
msk_offset = intc2_data[irq_offset].msk_offset;
ctrl_outl(1<<msk_shift,
INTC2_BASE+INTC2_INTMSKCLR_OFFSET+msk_offset);
}
static void mask_and_ack_intc2(unsigned int irq)
{
disable_intc2_irq(irq);
}
static void end_intc2_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
enable_intc2_irq(irq);
#ifdef CONFIG_CPU_SUBTYPE_ST40
if (intc2_data[irq - INTC2_FIRST_IRQ].clear_irq)
intc2_data[irq - INTC2_FIRST_IRQ].clear_irq (irq);
#endif
}
/*
* Setup an INTC2 style interrupt.
* NOTE: Unlike IPR interrupts, parameters are not shifted by this code,
* allowing the use of the numbers straight out of the datasheet.
* For example:
* PIO1 which is INTPRI00[19,16] and INTMSK00[13]
* would be: ^ ^ ^ ^
* | | | |
* make_intc2_irq(84, 0, 16, 0, 13);
*/
void make_intc2_irq(unsigned int irq,
unsigned int ipr_offset, unsigned int ipr_shift,
unsigned int msk_offset, unsigned int msk_shift,
unsigned int priority)
{
int irq_offset = irq - INTC2_FIRST_IRQ;
unsigned int flags;
unsigned long ipr;
if((irq_offset<0) || (irq_offset>=NR_INTC2_IRQS))
return;
disable_irq_nosync(irq);
/* Fill the data we need */
intc2_data[irq_offset].msk_offset = msk_offset;
intc2_data[irq_offset].msk_shift = msk_shift;
#ifdef CONFIG_CPU_SUBTYPE_ST40
intc2_data[irq_offset].clear_irq = NULL;
#endif
/* Set the priority level */
local_irq_save(flags);
ipr=ctrl_inl(INTC2_BASE+INTC2_INTPRI_OFFSET+ipr_offset);
ipr&=~(0xf<<ipr_shift);
ipr|=(priority)<<ipr_shift;
ctrl_outl(ipr, INTC2_BASE+INTC2_INTPRI_OFFSET+ipr_offset);
local_irq_restore(flags);
irq_desc[irq].handler=&intc2_irq_type;
disable_intc2_irq(irq);
}
#ifdef CONFIG_CPU_SUBTYPE_ST40
struct intc2_init {
unsigned short irq;
unsigned char ipr_offset, ipr_shift;
unsigned char msk_offset, msk_shift;
};
static struct intc2_init intc2_init_data[] __initdata = {
{64, 0, 0, 0, 0}, /* PCI serr */
{65, 0, 4, 0, 1}, /* PCI err */
{66, 0, 4, 0, 2}, /* PCI ad */
{67, 0, 4, 0, 3}, /* PCI pwd down */
{72, 0, 8, 0, 5}, /* DMAC INT0 */
{73, 0, 8, 0, 6}, /* DMAC INT1 */
{74, 0, 8, 0, 7}, /* DMAC INT2 */
{75, 0, 8, 0, 8}, /* DMAC INT3 */
{76, 0, 8, 0, 9}, /* DMAC INT4 */
{78, 0, 8, 0, 11}, /* DMAC ERR */
{80, 0, 12, 0, 12}, /* PIO0 */
{84, 0, 16, 0, 13}, /* PIO1 */
{88, 0, 20, 0, 14}, /* PIO2 */
{112, 4, 0, 4, 0}, /* Mailbox */
#ifdef CONFIG_CPU_SUBTYPE_ST40GX1
{116, 4, 4, 4, 4}, /* SSC0 */
{120, 4, 8, 4, 8}, /* IR Blaster */
{124, 4, 12, 4, 12}, /* USB host */
{128, 4, 16, 4, 16}, /* Video processor BLITTER */
{132, 4, 20, 4, 20}, /* UART0 */
{134, 4, 20, 4, 22}, /* UART2 */
{136, 4, 24, 4, 24}, /* IO_PIO0 */
{140, 4, 28, 4, 28}, /* EMPI */
{144, 8, 0, 8, 0}, /* MAFE */
{148, 8, 4, 8, 4}, /* PWM */
{152, 8, 8, 8, 8}, /* SSC1 */
{156, 8, 12, 8, 12}, /* IO_PIO1 */
{160, 8, 16, 8, 16}, /* USB target */
{164, 8, 20, 8, 20}, /* UART1 */
{168, 8, 24, 8, 24}, /* Teletext */
{172, 8, 28, 8, 28}, /* VideoSync VTG */
{173, 8, 28, 8, 29}, /* VideoSync DVP0 */
{174, 8, 28, 8, 30}, /* VideoSync DVP1 */
#endif
};
void __init init_IRQ_intc2(void)
{
struct intc2_init *p;
printk(KERN_ALERT "init_IRQ_intc2\n");
for (p = intc2_init_data;
p<intc2_init_data+ARRAY_SIZE(intc2_init_data);
p++) {
make_intc2_irq(p->irq, p->ipr_offset, p->ipr_shift,
p-> msk_offset, p->msk_shift, 13);
}
}
/* Adds a termination callback to the interrupt */
void intc2_add_clear_irq(int irq, int (*fn)(int))
{
if (irq < INTC2_FIRST_IRQ)
return;
intc2_data[irq - INTC2_FIRST_IRQ].clear_irq = fn;
}
#endif /* CONFIG_CPU_SUBTYPE_ST40 */

68
arch/sh/kernel/irq.c
View file

@ -8,38 +8,13 @@
* SuperH version: Copyright (C) 1999 Niibe Yutaka
*/
/*
* IRQs are in fact implemented a bit like signal handlers for the kernel.
* Naturally it's not a 1:1 relation, but there are similarities.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/kernel_stat.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/seq_file.h>
#include <linux/kallsyms.h>
#include <linux/bitops.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/pgalloc.h>
#include <asm/delay.h>
#include <asm/irq.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <linux/seq_file.h>
#include <asm/irq.h>
#include <asm/processor.h>
#include <asm/cpu/mmu_context.h>
/*
* 'what should we do if we get a hw irq event on an illegal vector'.
@ -66,7 +41,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
}
if (i < ACTUAL_NR_IRQS) {
if (i < NR_IRQS) {
spin_lock_irqsave(&irq_desc[i].lock, flags);
action = irq_desc[i].action;
if (!action)
@ -86,19 +61,32 @@ int show_interrupts(struct seq_file *p, void *v)
}
#endif
asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
struct pt_regs regs)
{
int irq;
{
int irq = r4;
irq_enter();
asm volatile("stc r2_bank, %0\n\t"
"shlr2 %0\n\t"
"shlr2 %0\n\t"
"shlr %0\n\t"
"add #-16, %0\n\t"
:"=z" (irq));
#ifdef CONFIG_CPU_HAS_INTEVT
__asm__ __volatile__ (
#ifdef CONFIG_CPU_HAS_SR_RB
"stc r2_bank, %0\n\t"
#else
"mov.l @%1, %0\n\t"
#endif
"shlr2 %0\n\t"
"shlr2 %0\n\t"
"shlr %0\n\t"
"add #-16, %0\n\t"
: "=z" (irq), "=r" (r4)
: "1" (INTEVT)
: "memory"
);
#endif
irq = irq_demux(irq);
__do_IRQ(irq, &regs);
irq_exit();

349
include/asm-sh/irq-sh7780.h Normal file
View file

@ -0,0 +1,349 @@
#ifndef __ASM_SH_IRQ_SH7780_H
#define __ASM_SH_IRQ_SH7780_H
/*
* linux/include/asm-sh/irq-sh7780.h
*
* Copyright (C) 2004 Takashi SHUDO <shudo@hitachi-ul.co.jp>
*/
#ifdef CONFIG_IDE
# ifndef IRQ_CFCARD
# define IRQ_CFCARD 14
# endif
# ifndef IRQ_PCMCIA
# define IRQ_PCMCIA 15
# endif
#endif
#define INTC_BASE 0xffd00000
#define INTC_ICR0 (INTC_BASE+0x0)
#define INTC_ICR1 (INTC_BASE+0x1c)
#define INTC_INTPRI (INTC_BASE+0x10)
#define INTC_INTREQ (INTC_BASE+0x24)
#define INTC_INTMSK0 (INTC_BASE+0x44)
#define INTC_INTMSK1 (INTC_BASE+0x48)
#define INTC_INTMSK2 (INTC_BASE+0x40080)
#define INTC_INTMSKCLR0 (INTC_BASE+0x64)
#define INTC_INTMSKCLR1 (INTC_BASE+0x68)
#define INTC_INTMSKCLR2 (INTC_BASE+0x40084)
#define INTC_NMIFCR (INTC_BASE+0xc0)
#define INTC_USERIMASK (INTC_BASE+0x30000)
#define INTC_INT2PRI0 (INTC_BASE+0x40000)
#define INTC_INT2PRI1 (INTC_BASE+0x40004)
#define INTC_INT2PRI2 (INTC_BASE+0x40008)
#define INTC_INT2PRI3 (INTC_BASE+0x4000c)
#define INTC_INT2PRI4 (INTC_BASE+0x40010)
#define INTC_INT2PRI5 (INTC_BASE+0x40014)
#define INTC_INT2PRI6 (INTC_BASE+0x40018)
#define INTC_INT2PRI7 (INTC_BASE+0x4001c)
#define INTC_INT2A0 (INTC_BASE+0x40030)
#define INTC_INT2A1 (INTC_BASE+0x40034)
#define INTC_INT2MSKR (INTC_BASE+0x40038)
#define INTC_INT2MSKCR (INTC_BASE+0x4003c)
#define INTC_INT2B0 (INTC_BASE+0x40040)
#define INTC_INT2B1 (INTC_BASE+0x40044)
#define INTC_INT2B2 (INTC_BASE+0x40048)
#define INTC_INT2B3 (INTC_BASE+0x4004c)
#define INTC_INT2B4 (INTC_BASE+0x40050)
#define INTC_INT2B5 (INTC_BASE+0x40054)
#define INTC_INT2B6 (INTC_BASE+0x40058)
#define INTC_INT2B7 (INTC_BASE+0x4005c)
#define INTC_INT2GPIC (INTC_BASE+0x40090)
/*
NOTE:
*_IRQ = (INTEVT2 - 0x200)/0x20
*/
/* IRQ 0-7 line external int*/
#define IRQ0_IRQ 2
#define IRQ0_IPR_ADDR INTC_INTPRI
#define IRQ0_IPR_POS 7
#define IRQ0_PRIORITY 2
#define IRQ1_IRQ 4
#define IRQ1_IPR_ADDR INTC_INTPRI
#define IRQ1_IPR_POS 6
#define IRQ1_PRIORITY 2
#define IRQ2_IRQ 6
#define IRQ2_IPR_ADDR INTC_INTPRI
#define IRQ2_IPR_POS 5
#define IRQ2_PRIORITY 2
#define IRQ3_IRQ 8
#define IRQ3_IPR_ADDR INTC_INTPRI
#define IRQ3_IPR_POS 4
#define IRQ3_PRIORITY 2
#define IRQ4_IRQ 10
#define IRQ4_IPR_ADDR INTC_INTPRI
#define IRQ4_IPR_POS 3
#define IRQ4_PRIORITY 2
#define IRQ5_IRQ 12
#define IRQ5_IPR_ADDR INTC_INTPRI
#define IRQ5_IPR_POS 2
#define IRQ5_PRIORITY 2
#define IRQ6_IRQ 14
#define IRQ6_IPR_ADDR INTC_INTPRI
#define IRQ6_IPR_POS 1
#define IRQ6_PRIORITY 2
#define IRQ7_IRQ 0
#define IRQ7_IPR_ADDR INTC_INTPRI
#define IRQ7_IPR_POS 0
#define IRQ7_PRIORITY 2
/* TMU */
/* ch0 */
#define TMU_IRQ 28
#define TMU_IPR_ADDR INTC_INT2PRI0
#define TMU_IPR_POS 3
#define TMU_PRIORITY 2
#define TIMER_IRQ 28
#define TIMER_IPR_ADDR INTC_INT2PRI0
#define TIMER_IPR_POS 3
#define TIMER_PRIORITY 2
/* ch 1*/
#define TMU_CH1_IRQ 29
#define TMU_CH1_IPR_ADDR INTC_INT2PRI0
#define TMU_CH1_IPR_POS 2
#define TMU_CH1_PRIORITY 2
#define TIMER1_IRQ 29
#define TIMER1_IPR_ADDR INTC_INT2PRI0
#define TIMER1_IPR_POS 2
#define TIMER1_PRIORITY 2
/* ch 2*/
#define TMU_CH2_IRQ 30
#define TMU_CH2_IPR_ADDR INTC_INT2PRI0
#define TMU_CH2_IPR_POS 1
#define TMU_CH2_PRIORITY 2
/* ch 2 Input capture */
#define TMU_CH2IC_IRQ 31
#define TMU_CH2IC_IPR_ADDR INTC_INT2PRI0
#define TMU_CH2IC_IPR_POS 0
#define TMU_CH2IC_PRIORITY 2
/* ch 3 */
#define TMU_CH3_IRQ 96
#define TMU_CH3_IPR_ADDR INTC_INT2PRI1
#define TMU_CH3_IPR_POS 3
#define TMU_CH3_PRIORITY 2
/* ch 4 */
#define TMU_CH4_IRQ 97
#define TMU_CH4_IPR_ADDR INTC_INT2PRI1
#define TMU_CH4_IPR_POS 2
#define TMU_CH4_PRIORITY 2
/* ch 5*/
#define TMU_CH5_IRQ 98
#define TMU_CH5_IPR_ADDR INTC_INT2PRI1
#define TMU_CH5_IPR_POS 1
#define TMU_CH5_PRIORITY 2
#define RTC_IRQ 22
#define RTC_IPR_ADDR INTC_INT2PRI1
#define RTC_IPR_POS 0
#define RTC_PRIORITY TIMER_PRIORITY
/* SCIF0 */
#define SCIF0_ERI_IRQ 40
#define SCIF0_RXI_IRQ 41
#define SCIF0_BRI_IRQ 42
#define SCIF0_TXI_IRQ 43
#define SCIF0_IPR_ADDR INTC_INT2PRI2
#define SCIF0_IPR_POS 3
#define SCIF0_PRIORITY 3
/* SCIF1 */
#define SCIF1_ERI_IRQ 76
#define SCIF1_RXI_IRQ 77
#define SCIF1_BRI_IRQ 78
#define SCIF1_TXI_IRQ 79
#define SCIF1_IPR_ADDR INTC_INT2PRI2
#define SCIF1_IPR_POS 2
#define SCIF1_PRIORITY 3
#define WDT_IRQ 27
#define WDT_IPR_ADDR INTC_INT2PRI2
#define WDT_IPR_POS 1
#define WDT_PRIORITY 2
/* DMAC(0) */
#define DMINT0_IRQ 34
#define DMINT1_IRQ 35
#define DMINT2_IRQ 36
#define DMINT3_IRQ 37
#define DMINT4_IRQ 44
#define DMINT5_IRQ 45
#define DMINT6_IRQ 46
#define DMINT7_IRQ 47
#define DMAE_IRQ 38
#define DMA0_IPR_ADDR INTC_INT2PRI3
#define DMA0_IPR_POS 2
#define DMA0_PRIORITY 7
/* DMAC(1) */
#define DMINT8_IRQ 92
#define DMINT9_IRQ 93
#define DMINT10_IRQ 94
#define DMINT11_IRQ 95
#define DMA1_IPR_ADDR INTC_INT2PRI3
#define DMA1_IPR_POS 1
#define DMA1_PRIORITY 7
#define DMTE0_IRQ DMINT0_IRQ
#define DMTE4_IRQ DMINT4_IRQ
#define DMA_IPR_ADDR DMA0_IPR_ADDR
#define DMA_IPR_POS DMA0_IPR_POS
#define DMA_PRIORITY DMA0_PRIORITY
/* CMT */
#define CMT_IRQ 56
#define CMT_IPR_ADDR INTC_INT2PRI4
#define CMT_IPR_POS 3
#define CMT_PRIORITY 0
/* HAC */
#define HAC_IRQ 60
#define HAC_IPR_ADDR INTC_INT2PRI4
#define HAC_IPR_POS 2
#define CMT_PRIORITY 0
/* PCIC(0) */
#define PCIC0_IRQ 64
#define PCIC0_IPR_ADDR INTC_INT2PRI4
#define PCIC0_IPR_POS 1
#define PCIC0_PRIORITY 2
/* PCIC(1) */
#define PCIC1_IRQ 65
#define PCIC1_IPR_ADDR INTC_INT2PRI4
#define PCIC1_IPR_POS 0
#define PCIC1_PRIORITY 2
/* PCIC(2) */
#define PCIC2_IRQ 66
#define PCIC2_IPR_ADDR INTC_INT2PRI5
#define PCIC2_IPR_POS 3
#define PCIC2_PRIORITY 2
/* PCIC(3) */
#define PCIC3_IRQ 67
#define PCIC3_IPR_ADDR INTC_INT2PRI5
#define PCIC3_IPR_POS 2
#define PCIC3_PRIORITY 2
/* PCIC(4) */
#define PCIC4_IRQ 68
#define PCIC4_IPR_ADDR INTC_INT2PRI5
#define PCIC4_IPR_POS 1
#define PCIC4_PRIORITY 2
/* PCIC(5) */
#define PCICERR_IRQ 69
#define PCICPWD3_IRQ 70
#define PCICPWD2_IRQ 71
#define PCICPWD1_IRQ 72
#define PCICPWD0_IRQ 73
#define PCIC5_IPR_ADDR INTC_INT2PRI5
#define PCIC5_IPR_POS 0
#define PCIC5_PRIORITY 2
/* SIOF */
#define SIOF_IRQ 80
#define SIOF_IPR_ADDR INTC_INT2PRI6
#define SIOF_IPR_POS 3
#define SIOF_PRIORITY 3
/* HSPI */
#define HSPI_IRQ 84
#define HSPI_IPR_ADDR INTC_INT2PRI6
#define HSPI_IPR_POS 2
#define HSPI_PRIORITY 3
/* MMCIF */
#define MMCIF_FSTAT_IRQ 88
#define MMCIF_TRAN_IRQ 89
#define MMCIF_ERR_IRQ 90
#define MMCIF_FRDY_IRQ 91
#define MMCIF_IPR_ADDR INTC_INT2PRI6
#define MMCIF_IPR_POS 1
#define HSPI_PRIORITY 3
/* SSI */
#define SSI_IRQ 100
#define SSI_IPR_ADDR INTC_INT2PRI6
#define SSI_IPR_POS 0
#define SSI_PRIORITY 3
/* FLCTL */
#define FLCTL_FLSTE_IRQ 104
#define FLCTL_FLTEND_IRQ 105
#define FLCTL_FLTRQ0_IRQ 106
#define FLCTL_FLTRQ1_IRQ 107
#define FLCTL_IPR_ADDR INTC_INT2PRI7
#define FLCTL_IPR_POS 3
#define FLCTL_PRIORITY 3
/* GPIO */
#define GPIO0_IRQ 108
#define GPIO1_IRQ 109
#define GPIO2_IRQ 110
#define GPIO3_IRQ 111
#define GPIO_IPR_ADDR INTC_INT2PRI7
#define GPIO_IPR_POS 2
#define GPIO_PRIORITY 3
/* ONCHIP_NR_IRQS */
#define NR_IRQS 150 /* 111 + 16 */
/* In a generic kernel, NR_IRQS is an upper bound, and we should use
* ACTUAL_NR_IRQS (which uses the machine vector) to get the correct value.
*/
#define ACTUAL_NR_IRQS NR_IRQS
extern void disable_irq(unsigned int);
extern void disable_irq_nosync(unsigned int);
extern void enable_irq(unsigned int);
/*
* Simple Mask Register Support
*/
extern void make_maskreg_irq(unsigned int irq);
extern unsigned short *irq_mask_register;
/*
* Function for "on chip support modules".
*/
extern void make_imask_irq(unsigned int irq);
#define INTC_TMU0_MSK 0
#define INTC_TMU3_MSK 1
#define INTC_RTC_MSK 2
#define INTC_SCIF0_MSK 3
#define INTC_SCIF1_MSK 4
#define INTC_WDT_MSK 5
#define INTC_HUID_MSK 7
#define INTC_DMAC0_MSK 8
#define INTC_DMAC1_MSK 9
#define INTC_CMT_MSK 12
#define INTC_HAC_MSK 13
#define INTC_PCIC0_MSK 14
#define INTC_PCIC1_MSK 15
#define INTC_PCIC2_MSK 16
#define INTC_PCIC3_MSK 17
#define INTC_PCIC4_MSK 18
#define INTC_PCIC5_MSK 19
#define INTC_SIOF_MSK 20
#define INTC_HSPI_MSK 21
#define INTC_MMCIF_MSK 22
#define INTC_SSI_MSK 23
#define INTC_FLCTL_MSK 24
#define INTC_GPIO_MSK 25
#endif /* __ASM_SH_IRQ_SH7780_H */

145
include/asm-sh/irq.h
View file

@ -15,13 +15,20 @@
#include <asm/machvec.h>
#include <asm/ptrace.h> /* for pt_regs */
#if defined(CONFIG_SH_HP600) || \
#if defined(CONFIG_SH_HP6XX) || \
defined(CONFIG_SH_RTS7751R2D) || \
defined(CONFIG_SH_HS7751RVOIP) || \
defined(CONFIG_SH_SH03)
defined(CONFIG_SH_HS7751RVOIP) || \
defined(CONFIG_SH_SH03) || \
defined(CONFIG_SH_R7780RP) || \
defined(CONFIG_SH_LANDISK)
#include <asm/mach/ide.h>
#endif
#ifndef CONFIG_CPU_SUBTYPE_SH7780
#define INTC_DMAC0_MSK 0
#if defined(CONFIG_CPU_SH3)
#define INTC_IPRA 0xfffffee2UL
#define INTC_IPRB 0xfffffee4UL
@ -235,8 +242,9 @@
#define SCIF1_IPR_ADDR INTC_IPRB
#define SCIF1_IPR_POS 1
#define SCIF1_PRIORITY 3
#endif
#endif
#endif /* ST40STB1 */
#endif /* 775x / SH4-202 / ST40STB1 */
/* NR_IRQS is made from three components:
* 1. ONCHIP_NR_IRQS - number of IRLS + on-chip peripherial modules
@ -245,37 +253,35 @@
*/
/* 1. ONCHIP_NR_IRQS */
#ifdef CONFIG_SH_GENERIC
#if defined(CONFIG_CPU_SUBTYPE_SH7604)
# define ONCHIP_NR_IRQS 24 // Actually 21
#elif defined(CONFIG_CPU_SUBTYPE_SH7707)
# define ONCHIP_NR_IRQS 64
# define PINT_NR_IRQS 16
#elif defined(CONFIG_CPU_SUBTYPE_SH7708)
# define ONCHIP_NR_IRQS 32
#elif defined(CONFIG_CPU_SUBTYPE_SH7709) || \
defined(CONFIG_CPU_SUBTYPE_SH7705)
# define ONCHIP_NR_IRQS 64 // Actually 61
# define PINT_NR_IRQS 16
#elif defined(CONFIG_CPU_SUBTYPE_SH7750)
# define ONCHIP_NR_IRQS 48 // Actually 44
#elif defined(CONFIG_CPU_SUBTYPE_SH7751)
# define ONCHIP_NR_IRQS 72
#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
# define ONCHIP_NR_IRQS 112 /* XXX */
#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
# define ONCHIP_NR_IRQS 72
#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
# define ONCHIP_NR_IRQS 144
#elif defined(CONFIG_CPU_SUBTYPE_SH7300)
# define ONCHIP_NR_IRQS 109
#elif defined(CONFIG_SH_UNKNOWN) /* Most be last */
# define ONCHIP_NR_IRQS 144
#else
# if defined(CONFIG_CPU_SUBTYPE_SH7604)
# define ONCHIP_NR_IRQS 24 // Actually 21
# elif defined(CONFIG_CPU_SUBTYPE_SH7707)
# define ONCHIP_NR_IRQS 64
# define PINT_NR_IRQS 16
# elif defined(CONFIG_CPU_SUBTYPE_SH7708)
# define ONCHIP_NR_IRQS 32
# elif defined(CONFIG_CPU_SUBTYPE_SH7709) || \
defined(CONFIG_CPU_SUBTYPE_SH7705)
# define ONCHIP_NR_IRQS 64 // Actually 61
# define PINT_NR_IRQS 16
# elif defined(CONFIG_CPU_SUBTYPE_SH7750)
# define ONCHIP_NR_IRQS 48 // Actually 44
# elif defined(CONFIG_CPU_SUBTYPE_SH7751)
# define ONCHIP_NR_IRQS 72
# elif defined(CONFIG_CPU_SUBTYPE_SH7760)
# define ONCHIP_NR_IRQS 110
# elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
# define ONCHIP_NR_IRQS 72
# elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
# define ONCHIP_NR_IRQS 144
# elif defined(CONFIG_CPU_SUBTYPE_SH7300)
# define ONCHIP_NR_IRQS 109
# endif
#endif
/* 2. PINT_NR_IRQS */
#ifdef CONFIG_SH_GENERIC
#ifdef CONFIG_SH_UNKNOWN
# define PINT_NR_IRQS 16
#else
# ifndef PINT_NR_IRQS
@ -288,22 +294,22 @@
#endif
/* 3. OFFCHIP_NR_IRQS */
#ifdef CONFIG_SH_GENERIC
#if defined(CONFIG_HD64461)
# define OFFCHIP_NR_IRQS 18
#elif defined (CONFIG_SH_BIGSUR) /* must be before CONFIG_HD64465 */
# define OFFCHIP_NR_IRQS 48
#elif defined(CONFIG_HD64465)
# define OFFCHIP_NR_IRQS 16
#elif defined (CONFIG_SH_EC3104)
# define OFFCHIP_NR_IRQS 16
#elif defined (CONFIG_SH_DREAMCAST)
# define OFFCHIP_NR_IRQS 96
#elif defined (CONFIG_SH_TITAN)
# define OFFCHIP_NR_IRQS 4
#elif defined(CONFIG_SH_UNKNOWN)
# define OFFCHIP_NR_IRQS 16 /* Must also be last */
#else
# if defined(CONFIG_HD64461)
# define OFFCHIP_NR_IRQS 18
# elif defined (CONFIG_SH_BIGSUR) /* must be before CONFIG_HD64465 */
# define OFFCHIP_NR_IRQS 48
# elif defined(CONFIG_HD64465)
# define OFFCHIP_NR_IRQS 16
# elif defined (CONFIG_SH_EC3104)
# define OFFCHIP_NR_IRQS 16
# elif defined (CONFIG_SH_DREAMCAST)
# define OFFCHIP_NR_IRQS 96
# else
# define OFFCHIP_NR_IRQS 0
# endif
# define OFFCHIP_NR_IRQS 0
#endif
#if OFFCHIP_NR_IRQS > 0
@ -313,16 +319,6 @@
/* NR_IRQS. 1+2+3 */
#define NR_IRQS (ONCHIP_NR_IRQS + PINT_NR_IRQS + OFFCHIP_NR_IRQS)
/* In a generic kernel, NR_IRQS is an upper bound, and we should use
* ACTUAL_NR_IRQS (which uses the machine vector) to get the correct value.
*/
#ifdef CONFIG_SH_GENERIC
# define ACTUAL_NR_IRQS (sh_mv.mv_nr_irqs)
#else
# define ACTUAL_NR_IRQS NR_IRQS
#endif
extern void disable_irq(unsigned int);
extern void disable_irq_nosync(unsigned int);
extern void enable_irq(unsigned int);
@ -542,9 +538,6 @@ extern int ipr_irq_demux(int irq);
extern int ipr_irq_demux(int irq);
#define __irq_demux(irq) ipr_irq_demux(irq)
#else
#define __irq_demux(irq) irq
#endif /* CONFIG_CPU_SUBTYPE_SH7707 || CONFIG_CPU_SUBTYPE_SH7709 */
#if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751) || \
@ -557,18 +550,35 @@ extern int ipr_irq_demux(int irq);
#define INTC_ICR_IRLM (1<<7)
#endif
#ifdef CONFIG_CPU_SUBTYPE_ST40STB1
#define INTC2_FIRST_IRQ 64
#define NR_INTC2_IRQS 25
#else
#include <asm/irq-sh7780.h>
#endif
/* SH with INTC2-style interrupts */
#ifdef CONFIG_CPU_HAS_INTC2_IRQ
#if defined(CONFIG_CPU_SUBTYPE_ST40STB1)
#define INTC2_BASE 0xfe080000
#define INTC2_INTC2MODE (INTC2_BASE+0x80)
#define INTC2_INTPRI_OFFSET 0x00
#define INTC2_FIRST_IRQ 64
#define INTC2_INTREQ_OFFSET 0x20
#define INTC2_INTMSK_OFFSET 0x40
#define INTC2_INTMSKCLR_OFFSET 0x60
#define NR_INTC2_IRQS 25
#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
#define INTC2_BASE 0xfe080000
#define INTC2_FIRST_IRQ 48 /* INTEVT 0x800 */
#define INTC2_INTREQ_OFFSET 0x20
#define INTC2_INTMSK_OFFSET 0x40
#define INTC2_INTMSKCLR_OFFSET 0x60
#define NR_INTC2_IRQS 64
#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
#define INTC2_BASE 0xffd40000
#define INTC2_FIRST_IRQ 22
#define INTC2_INTMSK_OFFSET (0x38)
#define INTC2_INTMSKCLR_OFFSET (0x3c)
#define NR_INTC2_IRQS 60
#endif
#define INTC2_INTPRI_OFFSET 0x00
void make_intc2_irq(unsigned int irq,
unsigned int ipr_offset, unsigned int ipr_shift,
@ -577,13 +587,16 @@ void make_intc2_irq(unsigned int irq,
void init_IRQ_intc2(void);
void intc2_add_clear_irq(int irq, int (*fn)(int));
#endif /* CONFIG_CPU_SUBTYPE_ST40STB1 */
#endif
static inline int generic_irq_demux(int irq)
{
return irq;
}
#ifndef __irq_demux
#define __irq_demux(irq) (irq)
#endif
#define irq_canonicalize(irq) (irq)
#define irq_demux(irq) __irq_demux(sh_mv.mv_irq_demux(irq))