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Commit f3e8d1da authored by Ralf Baechle's avatar Ralf Baechle
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[MIPS] Alchemy: Fix build by conversion to irq_cpu.c. 

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent fb8dd014
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Showing with 139 additions and 123 deletions
arch/mips/au1000/Kconfig
View file @ f3e8d1da
......@@ -137,6 +137,7 @@ config SOC_AU1200
config SOC_AU1X00
bool
select 64BIT_PHYS_ADDR
select IRQ_CPU
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_APM_EMULATION
......
arch/mips/au1000/common/irq.c
View file @ f3e8d1da
/*
* BRIEF MODULE DESCRIPTION
* Au1000 interrupt routines.
*
* Copyright 2001 MontaVista Software Inc.
* Author: MontaVista Software, Inc.
* ppopov@mvista.com or source@mvista.com
*
* Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
......@@ -32,6 +31,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/irq_cpu.h>
#include <asm/mipsregs.h>
#include <asm/mach-au1x00/au1000.h>
#ifdef CONFIG_MIPS_PB1000
......@@ -44,7 +44,7 @@
#define EXT_INTC1_REQ1 5 /* IP 5 */
#define MIPS_TIMER_IP 7 /* IP 7 */
void (*board_init_irq)(void);
void (*board_init_irq)(void) __initdata = NULL;
static DEFINE_SPINLOCK(irq_lock);
......@@ -134,12 +134,14 @@ void restore_au1xxx_intctl(void)
inline void local_enable_irq(unsigned int irq_nr)
{
if (irq_nr > AU1000_LAST_INTC0_INT) {
au_writel(1 << (irq_nr - 32), IC1_MASKSET);
au_writel(1 << (irq_nr - 32), IC1_WAKESET);
unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
if (bit >= 32) {
au_writel(1 << (bit - 32), IC1_MASKSET);
au_writel(1 << (bit - 32), IC1_WAKESET);
} else {
au_writel(1 << irq_nr, IC0_MASKSET);
au_writel(1 << irq_nr, IC0_WAKESET);
au_writel(1 << bit, IC0_MASKSET);
au_writel(1 << bit, IC0_WAKESET);
}
au_sync();
}
......@@ -147,12 +149,14 @@ inline void local_enable_irq(unsigned int irq_nr)
inline void local_disable_irq(unsigned int irq_nr)
{
if (irq_nr > AU1000_LAST_INTC0_INT) {
au_writel(1 << (irq_nr - 32), IC1_MASKCLR);
au_writel(1 << (irq_nr - 32), IC1_WAKECLR);
unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
if (bit >= 32) {
au_writel(1 << (bit - 32), IC1_MASKCLR);
au_writel(1 << (bit - 32), IC1_WAKECLR);
} else {
au_writel(1 << irq_nr, IC0_MASKCLR);
au_writel(1 << irq_nr, IC0_WAKECLR);
au_writel(1 << bit, IC0_MASKCLR);
au_writel(1 << bit, IC0_WAKECLR);
}
au_sync();
}
......@@ -160,12 +164,14 @@ inline void local_disable_irq(unsigned int irq_nr)
static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr)
{
if (irq_nr > AU1000_LAST_INTC0_INT) {
au_writel(1 << (irq_nr - 32), IC1_RISINGCLR);
au_writel(1 << (irq_nr - 32), IC1_MASKCLR);
unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
if (bit >= 32) {
au_writel(1 << (bit - 32), IC1_RISINGCLR);
au_writel(1 << (bit - 32), IC1_MASKCLR);
} else {
au_writel(1 << irq_nr, IC0_RISINGCLR);
au_writel(1 << irq_nr, IC0_MASKCLR);
au_writel(1 << bit, IC0_RISINGCLR);
au_writel(1 << bit, IC0_MASKCLR);
}
au_sync();
}
......@@ -173,12 +179,14 @@ static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr)
static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr)
{
if (irq_nr > AU1000_LAST_INTC0_INT) {
au_writel(1 << (irq_nr - 32), IC1_FALLINGCLR);
au_writel(1 << (irq_nr - 32), IC1_MASKCLR);
unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
if (bit >= 32) {
au_writel(1 << (bit - 32), IC1_FALLINGCLR);
au_writel(1 << (bit - 32), IC1_MASKCLR);
} else {
au_writel(1 << irq_nr, IC0_FALLINGCLR);
au_writel(1 << irq_nr, IC0_MASKCLR);
au_writel(1 << bit, IC0_FALLINGCLR);
au_writel(1 << bit, IC0_MASKCLR);
}
au_sync();
}
......@@ -186,17 +194,20 @@ static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr)
static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr)
{
/* This may assume that we don't get interrupts from
unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
/*
* This may assume that we don't get interrupts from
* both edges at once, or if we do, that we don't care.
*/
if (irq_nr > AU1000_LAST_INTC0_INT) {
au_writel(1 << (irq_nr - 32), IC1_FALLINGCLR);
au_writel(1 << (irq_nr - 32), IC1_RISINGCLR);
au_writel(1 << (irq_nr - 32), IC1_MASKCLR);
if (bit >= 32) {
au_writel(1 << (bit - 32), IC1_FALLINGCLR);
au_writel(1 << (bit - 32), IC1_RISINGCLR);
au_writel(1 << (bit - 32), IC1_MASKCLR);
} else {
au_writel(1 << irq_nr, IC0_FALLINGCLR);
au_writel(1 << irq_nr, IC0_RISINGCLR);
au_writel(1 << irq_nr, IC0_MASKCLR);
au_writel(1 << bit, IC0_FALLINGCLR);
au_writel(1 << bit, IC0_RISINGCLR);
au_writel(1 << bit, IC0_MASKCLR);
}
au_sync();
}
......@@ -213,10 +224,8 @@ static inline void mask_and_ack_level_irq(unsigned int irq_nr)
au_sync();
}
#endif
return;
}
static void end_irq(unsigned int irq_nr)
{
if (!(irq_desc[irq_nr].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
......@@ -341,114 +350,118 @@ void startup_match20_interrupt(irq_handler_t handler)
}
#endif
static void setup_local_irq(unsigned int irq_nr, int type, int int_req)
static void __init setup_local_irq(unsigned int irq_nr, int type, int int_req)
{
if (irq_nr > AU1000_MAX_INTR) return;
unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
if (irq_nr > AU1000_MAX_INTR)
return;
/* Config2[n], Config1[n], Config0[n] */
if (irq_nr > AU1000_LAST_INTC0_INT) {
if (bit >= 32) {
switch (type) {
case INTC_INT_RISE_EDGE: /* 0:0:1 */
au_writel(1 << (irq_nr - 32), IC1_CFG2CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG1CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG0SET);
au_writel(1 << (bit - 32), IC1_CFG2CLR);
au_writel(1 << (bit - 32), IC1_CFG1CLR);
au_writel(1 << (bit - 32), IC1_CFG0SET);
set_irq_chip(irq_nr, &rise_edge_irq_type);
break;
case INTC_INT_FALL_EDGE: /* 0:1:0 */
au_writel(1 << (irq_nr - 32), IC1_CFG2CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG1SET);
au_writel(1 << (irq_nr - 32), IC1_CFG0CLR);
au_writel(1 << (bit - 32), IC1_CFG2CLR);
au_writel(1 << (bit - 32), IC1_CFG1SET);
au_writel(1 << (bit - 32), IC1_CFG0CLR);
set_irq_chip(irq_nr, &fall_edge_irq_type);
break;
case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
au_writel(1 << (irq_nr - 32), IC1_CFG2CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG1SET);
au_writel(1 << (irq_nr - 32), IC1_CFG0SET);
au_writel(1 << (bit - 32), IC1_CFG2CLR);
au_writel(1 << (bit - 32), IC1_CFG1SET);
au_writel(1 << (bit - 32), IC1_CFG0SET);
set_irq_chip(irq_nr, &either_edge_irq_type);
break;
case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
au_writel(1 << (irq_nr - 32), IC1_CFG2SET);
au_writel(1 << (irq_nr - 32), IC1_CFG1CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG0SET);
au_writel(1 << (bit - 32), IC1_CFG2SET);
au_writel(1 << (bit - 32), IC1_CFG1CLR);
au_writel(1 << (bit - 32), IC1_CFG0SET);
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_LOW_LEVEL: /* 1:1:0 */
au_writel(1 << (irq_nr - 32), IC1_CFG2SET);
au_writel(1 << (irq_nr - 32), IC1_CFG1SET);
au_writel(1 << (irq_nr - 32), IC1_CFG0CLR);
au_writel(1 << (bit - 32), IC1_CFG2SET);
au_writel(1 << (bit - 32), IC1_CFG1SET);
au_writel(1 << (bit - 32), IC1_CFG0CLR);
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_DISABLED: /* 0:0:0 */
au_writel(1 << (irq_nr - 32), IC1_CFG0CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG1CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG2CLR);
au_writel(1 << (bit - 32), IC1_CFG0CLR);
au_writel(1 << (bit - 32), IC1_CFG1CLR);
au_writel(1 << (bit - 32), IC1_CFG2CLR);
break;
default: /* disable the interrupt */
printk(KERN_WARNING "unexpected int type %d (irq %d)\n",
type, irq_nr);
au_writel(1 << (irq_nr - 32), IC1_CFG0CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG1CLR);
au_writel(1 << (irq_nr - 32), IC1_CFG2CLR);
au_writel(1 << (bit - 32), IC1_CFG0CLR);
au_writel(1 << (bit - 32), IC1_CFG1CLR);
au_writel(1 << (bit - 32), IC1_CFG2CLR);
return;
}
if (int_req) /* assign to interrupt request 1 */
au_writel(1 << (irq_nr - 32), IC1_ASSIGNCLR);
au_writel(1 << (bit - 32), IC1_ASSIGNCLR);
else /* assign to interrupt request 0 */
au_writel(1 << (irq_nr - 32), IC1_ASSIGNSET);
au_writel(1 << (irq_nr - 32), IC1_SRCSET);
au_writel(1 << (irq_nr - 32), IC1_MASKCLR);
au_writel(1 << (irq_nr - 32), IC1_WAKECLR);
au_writel(1 << (bit - 32), IC1_ASSIGNSET);
au_writel(1 << (bit - 32), IC1_SRCSET);
au_writel(1 << (bit - 32), IC1_MASKCLR);
au_writel(1 << (bit - 32), IC1_WAKECLR);
} else {
switch (type) {
case INTC_INT_RISE_EDGE: /* 0:0:1 */
au_writel(1 << irq_nr, IC0_CFG2CLR);
au_writel(1 << irq_nr, IC0_CFG1CLR);
au_writel(1 << irq_nr, IC0_CFG0SET);
au_writel(1 << bit, IC0_CFG2CLR);
au_writel(1 << bit, IC0_CFG1CLR);
au_writel(1 << bit, IC0_CFG0SET);
set_irq_chip(irq_nr, &rise_edge_irq_type);
break;
case INTC_INT_FALL_EDGE: /* 0:1:0 */
au_writel(1 << irq_nr, IC0_CFG2CLR);
au_writel(1 << irq_nr, IC0_CFG1SET);
au_writel(1 << irq_nr, IC0_CFG0CLR);
au_writel(1 << bit, IC0_CFG2CLR);
au_writel(1 << bit, IC0_CFG1SET);
au_writel(1 << bit, IC0_CFG0CLR);
set_irq_chip(irq_nr, &fall_edge_irq_type);
break;
case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
au_writel(1 << irq_nr, IC0_CFG2CLR);
au_writel(1 << irq_nr, IC0_CFG1SET);
au_writel(1 << irq_nr, IC0_CFG0SET);
au_writel(1 << bit, IC0_CFG2CLR);
au_writel(1 << bit, IC0_CFG1SET);
au_writel(1 << bit, IC0_CFG0SET);
set_irq_chip(irq_nr, &either_edge_irq_type);
break;
case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
au_writel(1 << irq_nr, IC0_CFG2SET);
au_writel(1 << irq_nr, IC0_CFG1CLR);
au_writel(1 << irq_nr, IC0_CFG0SET);
au_writel(1 << bit, IC0_CFG2SET);
au_writel(1 << bit, IC0_CFG1CLR);
au_writel(1 << bit, IC0_CFG0SET);
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_LOW_LEVEL: /* 1:1:0 */
au_writel(1 << irq_nr, IC0_CFG2SET);
au_writel(1 << irq_nr, IC0_CFG1SET);
au_writel(1 << irq_nr, IC0_CFG0CLR);
au_writel(1 << bit, IC0_CFG2SET);
au_writel(1 << bit, IC0_CFG1SET);
au_writel(1 << bit, IC0_CFG0CLR);
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_DISABLED: /* 0:0:0 */
au_writel(1 << irq_nr, IC0_CFG0CLR);
au_writel(1 << irq_nr, IC0_CFG1CLR);
au_writel(1 << irq_nr, IC0_CFG2CLR);
au_writel(1 << bit, IC0_CFG0CLR);
au_writel(1 << bit, IC0_CFG1CLR);
au_writel(1 << bit, IC0_CFG2CLR);
break;
default: /* disable the interrupt */
printk(KERN_WARNING "unexpected int type %d (irq %d)\n",
type, irq_nr);
au_writel(1 << irq_nr, IC0_CFG0CLR);
au_writel(1 << irq_nr, IC0_CFG1CLR);
au_writel(1 << irq_nr, IC0_CFG2CLR);
au_writel(1 << bit, IC0_CFG0CLR);
au_writel(1 << bit, IC0_CFG1CLR);
au_writel(1 << bit, IC0_CFG2CLR);
return;
}
if (int_req) /* assign to interrupt request 1 */
au_writel(1 << irq_nr, IC0_ASSIGNCLR);
au_writel(1 << bit, IC0_ASSIGNCLR);
else /* assign to interrupt request 0 */
au_writel(1 << irq_nr, IC0_ASSIGNSET);
au_writel(1 << irq_nr, IC0_SRCSET);
au_writel(1 << irq_nr, IC0_MASKCLR);
au_writel(1 << irq_nr, IC0_WAKECLR);
au_writel(1 << bit, IC0_ASSIGNSET);
au_writel(1 << bit, IC0_SRCSET);
au_writel(1 << bit, IC0_MASKCLR);
au_writel(1 << bit, IC0_WAKECLR);
}
au_sync();
}
......@@ -461,8 +474,8 @@ static void setup_local_irq(unsigned int irq_nr, int type, int int_req)
static void intc0_req0_irqdispatch(void)
{
int irq = 0;
static unsigned long intc0_req0;
unsigned int bit;
intc0_req0 |= au_readl(IC0_REQ0INT);
......@@ -481,25 +494,25 @@ static void intc0_req0_irqdispatch(void)
return;
}
#endif
irq = ffs(intc0_req0);
intc0_req0 &= ~(1 << irq);
do_IRQ(irq);
bit = ffs(intc0_req0);
intc0_req0 &= ~(1 << bit);
do_IRQ(MIPS_CPU_IRQ_BASE + bit);
}
static void intc0_req1_irqdispatch(void)
{
int irq = 0;
static unsigned long intc0_req1;
unsigned int bit;
intc0_req1 |= au_readl(IC0_REQ1INT);
if (!intc0_req1)
return;
irq = ffs(intc0_req1);
intc0_req1 &= ~(1 << irq);
do_IRQ(irq);
bit = ffs(intc0_req1);
intc0_req1 &= ~(1 << bit);
do_IRQ(bit);
}
......@@ -509,43 +522,41 @@ static void intc0_req1_irqdispatch(void)
*/
static void intc1_req0_irqdispatch(void)
{
int irq = 0;
static unsigned long intc1_req0;
unsigned int bit;
intc1_req0 |= au_readl(IC1_REQ0INT);
if (!intc1_req0)
return;
irq = ffs(intc1_req0);
intc1_req0 &= ~(1 << irq);
irq += 32;
do_IRQ(irq);
bit = ffs(intc1_req0);
intc1_req0 &= ~(1 << bit);
do_IRQ(MIPS_CPU_IRQ_BASE + 32 + bit);
}
static void intc1_req1_irqdispatch(void)
{
int irq = 0;
static unsigned long intc1_req1;
unsigned int bit;
intc1_req1 |= au_readl(IC1_REQ1INT);
if (!intc1_req1)
return;
irq = ffs(intc1_req1);
intc1_req1 &= ~(1 << irq);
irq += 32;
do_IRQ(irq);
bit = ffs(intc1_req1);
intc1_req1 &= ~(1 << bit);
do_IRQ(MIPS_CPU_IRQ_BASE + 32 + bit);
}
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
unsigned int pending = read_c0_status() & read_c0_cause();
if (pending & CAUSEF_IP7)
do_IRQ(63);
do_IRQ(MIPS_CPU_IRQ_BASE + 7);
else if (pending & CAUSEF_IP2)
intc0_req0_irqdispatch();
else if (pending & CAUSEF_IP3)
......@@ -561,17 +572,15 @@ asmlinkage void plat_irq_dispatch(void)
void __init arch_init_irq(void)
{
int i;
unsigned long cp0_status;
struct au1xxx_irqmap *imp;
extern struct au1xxx_irqmap au1xxx_irq_map[];
extern struct au1xxx_irqmap au1xxx_ic0_map[];
extern int au1xxx_nr_irqs;
extern int au1xxx_ic0_nr_irqs;
cp0_status = read_c0_status();
/* Initialize interrupt controllers to a safe state.
*/
/*
* Initialize interrupt controllers to a safe state.
*/
au_writel(0xffffffff, IC0_CFG0CLR);
au_writel(0xffffffff, IC0_CFG1CLR);
au_writel(0xffffffff, IC0_CFG2CLR);
......@@ -594,16 +603,20 @@ void __init arch_init_irq(void)
au_writel(0xffffffff, IC1_RISINGCLR);
au_writel(0x00000000, IC1_TESTBIT);
/* Initialize IC0, which is fixed per processor.
*/
mips_cpu_irq_init();
/*
* Initialize IC0, which is fixed per processor.
*/
imp = au1xxx_ic0_map;
for (i = 0; i < au1xxx_ic0_nr_irqs; i++) {
setup_local_irq(imp->im_irq, imp->im_type, imp->im_request);
imp++;
}
/* Now set up the irq mapping for the board.
*/
/*
* Now set up the irq mapping for the board.
*/
imp = au1xxx_irq_map;
for (i = 0; i < au1xxx_nr_irqs; i++) {
setup_local_irq(imp->im_irq, imp->im_type, imp->im_request);
......@@ -615,5 +628,5 @@ void __init arch_init_irq(void)
/* Board specific IRQ initialization.
*/
if (board_init_irq)
(*board_init_irq)();
board_init_irq();
}
include/asm-mips/mach-au1x00/au1000.h
View file @ f3e8d1da
......@@ -926,10 +926,12 @@ extern struct au1xxx_irqmap au1xxx_irq_map[];
#endif /* CONFIG_SOC_AU1200 */
#define AU1000_LAST_INTC0_INT 31
#define AU1000_LAST_INTC1_INT 63
#define AU1000_MAX_INTR 63
#define INTX 0xFF /* not valid */
#define AU1000_INTC0_INT_BASE (MIPS_CPU_IRQ_BASE + 0)
#define AU1000_INTC0_INT_LAST (MIPS_CPU_IRQ_BASE + 31)
#define AU1000_INTC1_INT_BASE (MIPS_CPU_IRQ_BASE + 32)
#define AU1000_INTC1_INT_LAST (MIPS_CPU_IRQ_BASE + 63)
#define AU1000_MAX_INTR (MIPS_CPU_IRQ_BASE + 63)
#define INTX 0xFF /* not valid */
/* Programmable Counters 0 and 1 */
#define SYS_BASE 0xB1900000
......
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