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sh: unify external irq pin code for sh3

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This patch unifies the sh3 external irq pin code. It buys us some
savings with reduced code redundancy, but the main feature with
this change is irq sense selection support for all sh3 processors.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2008-04-24 21:30:09 +09:00 committed by Paul Mundt
parent 3d2c2f3ef7
commit a276e588a9
7 changed files with 80 additions and 96 deletions
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2
arch/sh/kernel/cpu/sh3/Makefile
View file

@ -2,7 +2,7 @@
# Makefile for the Linux/SuperH SH-3 backends.
#
obj-y := ex.o probe.o entry.o
obj-y := ex.o probe.o entry.o setup-sh3.o
# CPU subtype setup
obj-$(CONFIG_CPU_SUBTYPE_SH7705) += setup-sh7705.o

64
arch/sh/kernel/cpu/sh3/setup-sh3.c Normal file
View file

@ -0,0 +1,64 @@
/*
* Shared SH3 Setup code
*
* Copyright (C) 2008 Magnus Damm
*
* 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/io.h>
/* All SH3 devices are equipped with IRQ0->5 (except sh7708) */
enum {
UNUSED = 0,
/* interrupt sources */
IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5,
};
static struct intc_vect vectors_irq0123[] __initdata = {
INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
};
static struct intc_vect vectors_irq45[] __initdata = {
INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
};
static struct intc_prio_reg prio_registers[] __initdata = {
{ 0xa4000016, 0, 16, 4, /* IPRC */ { IRQ3, IRQ2, IRQ1, IRQ0 } },
{ 0xa4000018, 0, 16, 4, /* IPRD */ { 0, 0, IRQ5, IRQ4 } },
};
static struct intc_sense_reg sense_registers[] __initdata = {
{ 0xa4000010, 16, 2, { 0, 0, IRQ5, IRQ4, IRQ3, IRQ2, IRQ1, IRQ0 } },
};
static DECLARE_INTC_DESC(intc_desc_irq0123, "sh3-irq0123", vectors_irq0123,
NULL, NULL, prio_registers, sense_registers);
static DECLARE_INTC_DESC(intc_desc_irq45, "sh3-irq45", vectors_irq45,
NULL, NULL, prio_registers, sense_registers);
#define INTC_ICR1 0xa4000010UL
#define INTC_ICR1_IRQLVL (1<<14)
void __init plat_irq_setup_pins(int mode)
{
if (mode == IRQ_MODE_IRQ) {
ctrl_outw(ctrl_inw(INTC_ICR1) & ~INTC_ICR1_IRQLVL, INTC_ICR1);
register_intc_controller(&intc_desc_irq0123);
return;
}
BUG();
}
void __init plat_irq_setup_sh3(void)
{
register_intc_controller(&intc_desc_irq45);
}

20
arch/sh/kernel/cpu/sh3/setup-sh7705.c
View file

@ -37,7 +37,7 @@ enum {
};
static struct intc_vect vectors[] __initdata = {
INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
/* IRQ0->5 are handled in setup-sh3.c */
INTC_VECT(PINT07, 0x700), INTC_VECT(PINT815, 0x720),
INTC_VECT(DMAC_DEI0, 0x800), INTC_VECT(DMAC_DEI1, 0x820),
INTC_VECT(DMAC_DEI2, 0x840), INTC_VECT(DMAC_DEI3, 0x860),
@ -81,14 +81,6 @@ static struct intc_prio_reg prio_registers[] __initdata = {
static DECLARE_INTC_DESC(intc_desc, "sh7705", vectors, groups,
NULL, prio_registers, NULL);
static struct intc_vect vectors_irq[] __initdata = {
INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
};
static DECLARE_INTC_DESC(intc_desc_irq, "sh7705-irq", vectors_irq, NULL,
NULL, prio_registers, NULL);
static struct plat_sci_port sci_platform_data[] = {
{
.mapbase = 0xa4410000,
@ -159,16 +151,8 @@ static int __init sh7705_devices_setup(void)
}
__initcall(sh7705_devices_setup);
void __init plat_irq_setup_pins(int mode)
{
if (mode == IRQ_MODE_IRQ) {
register_intc_controller(&intc_desc_irq);
return;
}
BUG();
}
void __init plat_irq_setup(void)
{
register_intc_controller(&intc_desc);
plat_irq_setup_sh3();
}

36
arch/sh/kernel/cpu/sh3/setup-sh770x.c
View file

@ -52,7 +52,7 @@ static struct intc_vect vectors[] __initdata = {
#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
defined(CONFIG_CPU_SUBTYPE_SH7707) || \
defined(CONFIG_CPU_SUBTYPE_SH7709)
INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
/* IRQ0->5 are handled in setup-sh3.c */
INTC_VECT(DMAC_DEI0, 0x800), INTC_VECT(DMAC_DEI1, 0x820),
INTC_VECT(DMAC_DEI2, 0x840), INTC_VECT(DMAC_DEI3, 0x860),
INTC_VECT(ADC_ADI, 0x980),
@ -104,18 +104,6 @@ static struct intc_prio_reg prio_registers[] __initdata = {
static DECLARE_INTC_DESC(intc_desc, "sh770x", vectors, groups,
NULL, prio_registers, NULL);
#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
defined(CONFIG_CPU_SUBTYPE_SH7707) || \
defined(CONFIG_CPU_SUBTYPE_SH7709)
static struct intc_vect vectors_irq[] __initdata = {
INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
};
static DECLARE_INTC_DESC(intc_desc_irq, "sh770x-irq", vectors_irq, NULL,
NULL, prio_registers, NULL);
#endif
static struct resource rtc_resources[] = {
[0] = {
.start = 0xfffffec0,
@ -194,24 +182,12 @@ static int __init sh770x_devices_setup(void)
}
__initcall(sh770x_devices_setup);
#define INTC_ICR1 0xa4000010UL
#define INTC_ICR1_IRQLVL (1<<14)
void __init plat_irq_setup_pins(int mode)
{
if (mode == IRQ_MODE_IRQ) {
#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
defined(CONFIG_CPU_SUBTYPE_SH7707) || \
defined(CONFIG_CPU_SUBTYPE_SH7709)
ctrl_outw(ctrl_inw(INTC_ICR1) & ~INTC_ICR1_IRQLVL, INTC_ICR1);
register_intc_controller(&intc_desc_irq);
return;
#endif
}
BUG();
}
void __init plat_irq_setup(void)
{
register_intc_controller(&intc_desc);
#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
defined(CONFIG_CPU_SUBTYPE_SH7707) || \
defined(CONFIG_CPU_SUBTYPE_SH7709)
plat_irq_setup_sh3();
#endif
}

20
arch/sh/kernel/cpu/sh3/setup-sh7710.c
View file

@ -38,7 +38,7 @@ enum {
};
static struct intc_vect vectors[] __initdata = {
INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
/* IRQ0->5 are handled in setup-sh3.c */
INTC_VECT(DMAC_DEI0, 0x800), INTC_VECT(DMAC_DEI1, 0x820),
INTC_VECT(DMAC_DEI2, 0x840), INTC_VECT(DMAC_DEI3, 0x860),
INTC_VECT(SCIF0_ERI, 0x880), INTC_VECT(SCIF0_RXI, 0x8a0),
@ -91,14 +91,6 @@ static struct intc_prio_reg prio_registers[] __initdata = {
static DECLARE_INTC_DESC(intc_desc, "sh7710", vectors, groups,
NULL, prio_registers, NULL);
static struct intc_vect vectors_irq[] __initdata = {
INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
};
static DECLARE_INTC_DESC(intc_desc_irq, "sh7710-irq", vectors_irq, NULL,
NULL, prio_registers, NULL);
static struct resource rtc_resources[] = {
[0] = {
.start = 0xa413fec0,
@ -170,16 +162,8 @@ static int __init sh7710_devices_setup(void)
}
__initcall(sh7710_devices_setup);
void __init plat_irq_setup_pins(int mode)
{
if (mode == IRQ_MODE_IRQ) {
register_intc_controller(&intc_desc_irq);
return;
}
BUG();
}
void __init plat_irq_setup(void)
{
register_intc_controller(&intc_desc);
plat_irq_setup_sh3();
}

31
arch/sh/kernel/cpu/sh3/setup-sh7720.c
View file

@ -19,10 +19,6 @@
#include <linux/serial_sci.h>
#include <asm/rtc.h>
#define INTC_ICR1 0xA4140010UL
#define INTC_ICR_IRLM 0x4000
#define INTC_ICR_IRQ (~INTC_ICR_IRLM)
static struct resource rtc_resources[] = {
[0] = {
.start = 0xa413fec0,
@ -170,6 +166,7 @@ enum {
};
static struct intc_vect vectors[] __initdata = {
/* IRQ0->5 are handled in setup-sh3.c */
INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
INTC_VECT(TMU2, 0x440), INTC_VECT(RTC_ATI, 0x480),
INTC_VECT(RTC_PRI, 0x4a0), INTC_VECT(RTC_CUI, 0x4c0),
@ -229,32 +226,8 @@ static struct intc_prio_reg prio_registers[] __initdata = {
static DECLARE_INTC_DESC(intc_desc, "sh7720", vectors, groups,
NULL, prio_registers, NULL);
static struct intc_sense_reg sense_registers[] __initdata = {
{ INTC_ICR1, 16, 2, { 0, 0, IRQ5, IRQ4, IRQ3, IRQ2, IRQ1, IRQ0 } },
};
static struct intc_vect vectors_irq[] __initdata = {
INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
};
static DECLARE_INTC_DESC(intc_irq_desc, "sh7720-irq", vectors_irq,
NULL, NULL, prio_registers, sense_registers);
void __init plat_irq_setup_pins(int mode)
{
switch (mode) {
case IRQ_MODE_IRQ:
ctrl_outw(ctrl_inw(INTC_ICR1) & INTC_ICR_IRQ, INTC_ICR1);
register_intc_controller(&intc_irq_desc);
break;
default:
BUG();
}
}
void __init plat_irq_setup(void)
{
register_intc_controller(&intc_desc);
plat_irq_setup_sh3();
}

3
include/asm-sh/hw_irq.h
View file

@ -95,6 +95,9 @@ 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
enum { IRQ_MODE_IRQ, IRQ_MODE_IRQ7654, IRQ_MODE_IRQ3210,
IRQ_MODE_IRL7654_MASK, IRQ_MODE_IRL3210_MASK,