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[PATCH] sh: IRQ handler updates

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

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 @@ unlock:
}
#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))