Commit 229f773e authored by Atsushi Nemoto's avatar Atsushi Nemoto Committed by Ralf Baechle

[MIPS] txx9tmr clockevent/clocksource driver

Convert jmr3927_clock_event_device to more generic
txx9tmr_clock_event_device which supports one-shot mode.  The
txx9tmr_clock_event_device can be used for TX49 too if the cp0 timer
interrupt was not available.

Convert jmr3927_hpt_read to txx9_clocksource driver which does not
depends jiffies anymore.  The txx9_clocksource itself can be used for
TX49, but normally TX49 uses higher precision clocksource_mips.
Signed-off-by: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 22df3f53
......@@ -583,6 +583,7 @@ config SNI_RM
config TOSHIBA_JMR3927
bool "Toshiba JMR-TX3927 board"
select CEVT_TXX9
select DMA_NONCOHERENT
select HW_HAS_PCI
select MIPS_TX3927
......@@ -597,6 +598,7 @@ config TOSHIBA_JMR3927
config TOSHIBA_RBTX4927
bool "Toshiba RBTX49[23]7 board"
select CEVT_R4K
select CEVT_TXX9
select DMA_NONCOHERENT
select HAS_TXX9_SERIAL
select HW_HAS_PCI
......@@ -618,6 +620,7 @@ config TOSHIBA_RBTX4927
config TOSHIBA_RBTX4938
bool "Toshiba RBTX4938 board"
select CEVT_R4K
select CEVT_TXX9
select DMA_NONCOHERENT
select HAS_TXX9_SERIAL
select HW_HAS_PCI
......@@ -736,6 +739,9 @@ config CEVT_GT641XX
config CEVT_R4K
bool
config CEVT_TXX9
bool
config CFE
bool
......
......@@ -27,17 +27,13 @@
* Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
*/
#include <linux/clockchips.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/kdev_t.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/irq.h>
#include <linux/ioport.h>
#include <linux/param.h> /* for HZ */
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
......@@ -48,17 +44,13 @@
#endif
#include <asm/addrspace.h>
#include <asm/time.h>
#include <asm/txx9tmr.h>
#include <asm/reboot.h>
#include <asm/jmr3927/jmr3927.h>
#include <asm/mipsregs.h>
extern void puts(const char *cp);
/* Tick Timer divider */
#define JMR3927_TIMER_CCD 0 /* 1/2 */
#define JMR3927_TIMER_CLK (JMR3927_IMCLK / (2 << JMR3927_TIMER_CCD))
/* don't enable - see errata */
static int jmr3927_ccfg_toeon;
......@@ -93,66 +85,12 @@ static void jmr3927_machine_power_off(void)
while (1);
}
static cycle_t jmr3927_hpt_read(void)
{
/* We assume this function is called xtime_lock held. */
return jiffies * (JMR3927_TIMER_CLK / HZ) + jmr3927_tmrptr->trr;
}
static void jmr3927_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
{
/* Nothing to do here */
}
struct clock_event_device jmr3927_clock_event_device = {
.name = "MIPS",
.features = CLOCK_EVT_FEAT_PERIODIC,
.shift = 32,
.rating = 300,
.cpumask = CPU_MASK_CPU0,
.irq = JMR3927_IRQ_TICK,
.set_mode = jmr3927_set_mode,
};
static irqreturn_t jmr3927_timer_interrupt(int irq, void *dev_id)
{
struct clock_event_device *cd = &jmr3927_clock_event_device;
jmr3927_tmrptr->tisr = 0; /* ack interrupt */
cd->event_handler(cd);
return IRQ_HANDLED;
}
static struct irqaction jmr3927_timer_irqaction = {
.handler = jmr3927_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU,
.name = "jmr3927-timer",
};
void __init plat_time_init(void)
{
struct clock_event_device *cd;
clocksource_mips.read = jmr3927_hpt_read;
mips_hpt_frequency = JMR3927_TIMER_CLK;
jmr3927_tmrptr->cpra = JMR3927_TIMER_CLK / HZ;
jmr3927_tmrptr->itmr = TXx927_TMTITMR_TIIE | TXx927_TMTITMR_TZCE;
jmr3927_tmrptr->ccdr = JMR3927_TIMER_CCD;
jmr3927_tmrptr->tcr =
TXx927_TMTCR_TCE | TXx927_TMTCR_CCDE | TXx927_TMTCR_TMODE_ITVL;
cd = &jmr3927_clock_event_device;
/* Calculate the min / max delta */
cd->mult = div_sc((unsigned long) JMR3927_IMCLK, NSEC_PER_SEC, 32);
cd->max_delta_ns = clockevent_delta2ns(0x7fffffff, cd);
cd->min_delta_ns = clockevent_delta2ns(0x300, cd);
clockevents_register_device(cd);
setup_irq(JMR3927_IRQ_TICK, &jmr3927_timer_irqaction);
txx9_clockevent_init(TX3927_TMR_REG(0),
TXX9_IRQ_BASE + JMR3927_IRQ_IRC_TMR(0),
JMR3927_IMCLK);
txx9_clocksource_init(TX3927_TMR_REG(1), JMR3927_IMCLK);
}
#define DO_WRITE_THROUGH
......@@ -317,15 +255,8 @@ static void __init tx3927_setup(void)
tx3927_ccfgptr->ccfg, tx3927_ccfgptr->pcfg);
/* TMR */
/* disable all timers */
for (i = 0; i < TX3927_NR_TMR; i++) {
tx3927_tmrptr(i)->tcr = TXx927_TMTCR_CRE;
tx3927_tmrptr(i)->tisr = 0;
tx3927_tmrptr(i)->cpra = 0xffffffff;
tx3927_tmrptr(i)->itmr = 0;
tx3927_tmrptr(i)->ccdr = 0;
tx3927_tmrptr(i)->pgmr = 0;
}
for (i = 0; i < TX3927_NR_TMR; i++)
txx9_tmr_init(TX3927_TMR_REG(i));
/* DMA */
tx3927_dmaptr->mcr = 0;
......
......@@ -10,6 +10,7 @@ obj-y += cpu-probe.o branch.o entry.o genex.o irq.o process.o \
obj-$(CONFIG_CEVT_R4K) += cevt-r4k.o
obj-$(CONFIG_CEVT_GT641XX) += cevt-gt641xx.o
obj-$(CONFIG_CEVT_TXX9) += cevt-txx9.o
binfmt_irix-objs := irixelf.o irixinv.o irixioctl.o irixsig.o \
irix5sys.o sysirix.o
......
/*
* 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.
*
* Based on linux/arch/mips/kernel/cevt-r4k.c,
* linux/arch/mips/jmr3927/rbhma3100/setup.c
*
* Copyright 2001 MontaVista Software Inc.
* Copyright (C) 2000-2001 Toshiba Corporation
* Copyright (C) 2007 MIPS Technologies, Inc.
* Copyright (C) 2007 Ralf Baechle <ralf@linux-mips.org>
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/time.h>
#include <asm/txx9tmr.h>
#define TCR_BASE (TXx9_TMTCR_CCDE | TXx9_TMTCR_CRE | TXx9_TMTCR_TMODE_ITVL)
#define TIMER_CCD 0 /* 1/2 */
#define TIMER_CLK(imclk) ((imclk) / (2 << TIMER_CCD))
static struct txx9_tmr_reg __iomem *txx9_cs_tmrptr;
static cycle_t txx9_cs_read(void)
{
return __raw_readl(&txx9_cs_tmrptr->trr);
}
/* Use 1 bit smaller width to use full bits in that width */
#define TXX9_CLOCKSOURCE_BITS (TXX9_TIMER_BITS - 1)
static struct clocksource txx9_clocksource = {
.name = "TXx9",
.rating = 200,
.read = txx9_cs_read,
.mask = CLOCKSOURCE_MASK(TXX9_CLOCKSOURCE_BITS),
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
void __init txx9_clocksource_init(unsigned long baseaddr,
unsigned int imbusclk)
{
struct txx9_tmr_reg __iomem *tmrptr;
clocksource_set_clock(&txx9_clocksource, TIMER_CLK(imbusclk));
clocksource_register(&txx9_clocksource);
tmrptr = ioremap(baseaddr, sizeof(struct txx9_tmr_reg));
__raw_writel(TCR_BASE, &tmrptr->tcr);
__raw_writel(0, &tmrptr->tisr);
__raw_writel(TIMER_CCD, &tmrptr->ccdr);
__raw_writel(TXx9_TMITMR_TZCE, &tmrptr->itmr);
__raw_writel(1 << TXX9_CLOCKSOURCE_BITS, &tmrptr->cpra);
__raw_writel(TCR_BASE | TXx9_TMTCR_TCE, &tmrptr->tcr);
txx9_cs_tmrptr = tmrptr;
}
static struct txx9_tmr_reg __iomem *txx9_tmrptr;
static void txx9tmr_stop_and_clear(struct txx9_tmr_reg __iomem *tmrptr)
{
/* stop and reset counter */
__raw_writel(TCR_BASE, &tmrptr->tcr);
/* clear pending interrupt */
__raw_writel(0, &tmrptr->tisr);
}
static void txx9tmr_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
{
struct txx9_tmr_reg __iomem *tmrptr = txx9_tmrptr;
txx9tmr_stop_and_clear(tmrptr);
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
__raw_writel(TXx9_TMITMR_TIIE | TXx9_TMITMR_TZCE,
&tmrptr->itmr);
/* start timer */
__raw_writel(((u64)(NSEC_PER_SEC / HZ) * evt->mult) >>
evt->shift,
&tmrptr->cpra);
__raw_writel(TCR_BASE | TXx9_TMTCR_TCE, &tmrptr->tcr);
break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
__raw_writel(0, &tmrptr->itmr);
break;
case CLOCK_EVT_MODE_ONESHOT:
__raw_writel(TXx9_TMITMR_TIIE, &tmrptr->itmr);
break;
case CLOCK_EVT_MODE_RESUME:
__raw_writel(TIMER_CCD, &tmrptr->ccdr);
__raw_writel(0, &tmrptr->itmr);
break;
}
}
static int txx9tmr_set_next_event(unsigned long delta,
struct clock_event_device *evt)
{
struct txx9_tmr_reg __iomem *tmrptr = txx9_tmrptr;
txx9tmr_stop_and_clear(tmrptr);
/* start timer */
__raw_writel(delta, &tmrptr->cpra);
__raw_writel(TCR_BASE | TXx9_TMTCR_TCE, &tmrptr->tcr);
return 0;
}
static struct clock_event_device txx9tmr_clock_event_device = {
.name = "TXx9",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.rating = 200,
.cpumask = CPU_MASK_CPU0,
.set_mode = txx9tmr_set_mode,
.set_next_event = txx9tmr_set_next_event,
};
static irqreturn_t txx9tmr_interrupt(int irq, void *dev_id)
{
struct clock_event_device *cd = &txx9tmr_clock_event_device;
struct txx9_tmr_reg __iomem *tmrptr = txx9_tmrptr;
__raw_writel(0, &tmrptr->tisr); /* ack interrupt */
cd->event_handler(cd);
return IRQ_HANDLED;
}
static struct irqaction txx9tmr_irq = {
.handler = txx9tmr_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU,
.name = "txx9tmr",
};
void __init txx9_clockevent_init(unsigned long baseaddr, int irq,
unsigned int imbusclk)
{
struct clock_event_device *cd = &txx9tmr_clock_event_device;
struct txx9_tmr_reg __iomem *tmrptr;
tmrptr = ioremap(baseaddr, sizeof(struct txx9_tmr_reg));
txx9tmr_stop_and_clear(tmrptr);
__raw_writel(TIMER_CCD, &tmrptr->ccdr);
__raw_writel(0, &tmrptr->itmr);
txx9_tmrptr = tmrptr;
clockevent_set_clock(cd, TIMER_CLK(imbusclk));
cd->max_delta_ns =
clockevent_delta2ns(0xffffffff >> (32 - TXX9_TIMER_BITS), cd);
cd->min_delta_ns = clockevent_delta2ns(0xf, cd);
cd->irq = irq;
clockevents_register_device(cd);
setup_irq(irq, &txx9tmr_irq);
printk(KERN_INFO "TXx9: clockevent device at 0x%lx, irq %d\n",
baseaddr, irq);
}
void __init txx9_tmr_init(unsigned long baseaddr)
{
struct txx9_tmr_reg __iomem *tmrptr;
tmrptr = ioremap(baseaddr, sizeof(struct txx9_tmr_reg));
__raw_writel(TXx9_TMTCR_CRE, &tmrptr->tcr);
__raw_writel(0, &tmrptr->tisr);
__raw_writel(0xffffffff, &tmrptr->cpra);
__raw_writel(0, &tmrptr->itmr);
__raw_writel(0, &tmrptr->ccdr);
__raw_writel(0, &tmrptr->pgmr);
iounmap(tmrptr);
}
......@@ -63,6 +63,7 @@
#include <asm/processor.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/txx9tmr.h>
#include <linux/bootmem.h>
#include <linux/blkdev.h>
#ifdef CONFIG_TOSHIBA_FPCIB0
......@@ -93,7 +94,6 @@
#define TOSHIBA_RBTX4927_SETUP_EFWFU ( 1 << 3 )
#define TOSHIBA_RBTX4927_SETUP_SETUP ( 1 << 4 )
#define TOSHIBA_RBTX4927_SETUP_TIME_INIT ( 1 << 5 )
#define TOSHIBA_RBTX4927_SETUP_PCIBIOS ( 1 << 7 )
#define TOSHIBA_RBTX4927_SETUP_PCI1 ( 1 << 8 )
#define TOSHIBA_RBTX4927_SETUP_PCI2 ( 1 << 9 )
......@@ -130,7 +130,6 @@ extern void toshiba_rbtx4927_power_off(void);
int tx4927_using_backplane = 0;
extern void gt64120_time_init(void);
extern void toshiba_rbtx4927_irq_setup(void);
char *prom_getcmdline(void);
......@@ -721,6 +720,7 @@ void toshiba_rbtx4927_power_off(void)
void __init toshiba_rbtx4927_setup(void)
{
int i;
u32 cp0_config;
char *argptr;
......@@ -764,6 +764,9 @@ void __init toshiba_rbtx4927_setup(void)
_machine_halt = toshiba_rbtx4927_halt;
pm_power_off = toshiba_rbtx4927_power_off;
for (i = 0; i < TX4927_NR_TMR; i++)
txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
#ifdef CONFIG_PCI
/* PCIC */
......@@ -892,7 +895,6 @@ void __init toshiba_rbtx4927_setup(void)
#ifdef CONFIG_SERIAL_TXX9
{
extern int early_serial_txx9_setup(struct uart_port *port);
int i;
struct uart_port req;
for(i = 0; i < 2; i++) {
memset(&req, 0, sizeof(req));
......@@ -937,12 +939,11 @@ void __init toshiba_rbtx4927_setup(void)
void __init
toshiba_rbtx4927_time_init(void)
{
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n");
mips_hpt_frequency = tx4927_cpu_clock / 2;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n");
if (tx4927_ccfgptr->ccfg & TX4927_CCFG_TINTDIS)
txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
TXX9_IRQ_BASE + 17,
50000000);
}
static int __init toshiba_rbtx4927_rtc_init(void)
......
......@@ -26,6 +26,7 @@
#include <asm/reboot.h>
#include <asm/irq.h>
#include <asm/time.h>
#include <asm/txx9tmr.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/bootinfo.h>
......@@ -773,15 +774,8 @@ void __init tx4938_board_setup(void)
}
/* TMR */
/* disable all timers */
for (i = 0; i < TX4938_NR_TMR; i++) {
tx4938_tmrptr(i)->tcr = 0x00000020;
tx4938_tmrptr(i)->tisr = 0;
tx4938_tmrptr(i)->cpra = 0xffffffff;
tx4938_tmrptr(i)->itmr = 0;
tx4938_tmrptr(i)->ccdr = 0;
tx4938_tmrptr(i)->pgmr = 0;
}
for (i = 0; i < TX4938_NR_TMR; i++)
txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
/* enable DMA */
TX4938_WR64(0xff1fb150, TX4938_DMA_MCR_MSTEN);
......@@ -852,12 +846,13 @@ void tx4938_report_pcic_status(void)
#endif /* CONFIG_PCI */
/* We use onchip r4k counter or TMR timer as our system wide timer
* interrupt running at 100HZ. */
void __init plat_time_init(void)
{
mips_hpt_frequency = txx9_cpu_clock / 2;
if (tx4938_ccfgptr->ccfg & TX4938_CCFG_TINTDIS)
txx9_clockevent_init(TX4938_TMR_REG(0) & 0xfffffffffULL,
TXX9_IRQ_BASE + TX4938_IR_TMR(0),
txx9_gbus_clock / 2);
}
void __init toshiba_rbtx4938_setup(void)
......
......@@ -132,9 +132,7 @@
#define JMR3927_IRQ_IRC_DMA (JMR3927_IRQ_IRC + TX3927_IR_DMA)
#define JMR3927_IRQ_IRC_PIO (JMR3927_IRQ_IRC + TX3927_IR_PIO)
#define JMR3927_IRQ_IRC_PCI (JMR3927_IRQ_IRC + TX3927_IR_PCI)
#define JMR3927_IRQ_IRC_TMR0 (JMR3927_IRQ_IRC + TX3927_IR_TMR0)
#define JMR3927_IRQ_IRC_TMR1 (JMR3927_IRQ_IRC + TX3927_IR_TMR1)
#define JMR3927_IRQ_IRC_TMR2 (JMR3927_IRQ_IRC + TX3927_IR_TMR2)
#define JMR3927_IRQ_IRC_TMR(ch) (JMR3927_IRQ_IRC + TX3927_IR_TMR(ch))
#define JMR3927_IRQ_IOC_PCIA (JMR3927_IRQ_IOC + JMR3927_IOC_INTB_PCIA)
#define JMR3927_IRQ_IOC_PCIB (JMR3927_IRQ_IOC + JMR3927_IOC_INTB_PCIB)
#define JMR3927_IRQ_IOC_PCIC (JMR3927_IRQ_IOC + JMR3927_IOC_INTB_PCIC)
......@@ -148,17 +146,12 @@
#define JMR3927_IRQ_IOCINT JMR3927_IRQ_IRC_INT1
/* TC35815 100M Ether (JMR-TX3912:JPW4:2-3 Short) */
#define JMR3927_IRQ_ETHER0 JMR3927_IRQ_IRC_INT3
/* Clock Tick (10ms) */
#define JMR3927_IRQ_TICK JMR3927_IRQ_IRC_TMR0
/* Clocks */
#define JMR3927_CORECLK 132710400 /* 132.7MHz */
#define JMR3927_GBUSCLK (JMR3927_CORECLK / 2) /* 66.35MHz */
#define JMR3927_IMCLK (JMR3927_CORECLK / 4) /* 33.17MHz */
#define jmr3927_tmrptr tx3927_tmrptr(0) /* TMR0 */
/*
* TX3927 Pin Configuration:
*
......
......@@ -222,9 +222,7 @@ struct tx3927_ccfg_reg {
#define TX3927_IR_DMA 8
#define TX3927_IR_PIO 9
#define TX3927_IR_PCI 10
#define TX3927_IR_TMR0 13
#define TX3927_IR_TMR1 14
#define TX3927_IR_TMR2 15
#define TX3927_IR_TMR(ch) (13 + (ch))
#define TX3927_NUM_IR 16
/*
......
......@@ -10,22 +10,6 @@
#ifndef __ASM_TXX927_H
#define __ASM_TXX927_H
struct txx927_tmr_reg {
volatile unsigned long tcr;
volatile unsigned long tisr;
volatile unsigned long cpra;
volatile unsigned long cprb;
volatile unsigned long itmr;
volatile unsigned long unused0[3];
volatile unsigned long ccdr;
volatile unsigned long unused1[3];
volatile unsigned long pgmr;
volatile unsigned long unused2[3];
volatile unsigned long wtmr;
volatile unsigned long unused3[43];
volatile unsigned long trr;
};
struct txx927_sio_reg {
volatile unsigned long lcr;
volatile unsigned long dicr;
......@@ -50,27 +34,6 @@ struct txx927_pio_reg {
volatile unsigned long maskext;
};
/*
* TMR
*/
/* TMTCR : Timer Control */
#define TXx927_TMTCR_TCE 0x00000080
#define TXx927_TMTCR_CCDE 0x00000040
#define TXx927_TMTCR_CRE 0x00000020
#define TXx927_TMTCR_ECES 0x00000008
#define TXx927_TMTCR_CCS 0x00000004
#define TXx927_TMTCR_TMODE_MASK 0x00000003
#define TXx927_TMTCR_TMODE_ITVL 0x00000000
/* TMTISR : Timer Int. Status */
#define TXx927_TMTISR_TPIBS 0x00000004
#define TXx927_TMTISR_TPIAS 0x00000002
#define TXx927_TMTISR_TIIS 0x00000001
/* TMTITMR : Interval Timer Mode */
#define TXx927_TMTITMR_TIIE 0x00008000
#define TXx927_TMTITMR_TZCE 0x00000001
/*
* SIO
*/
......
......@@ -9,6 +9,7 @@
#define __ASM_TX4927_TX4927_PCI_H
#define TX4927_CCFG_TOE 0x00004000
#define TX4927_CCFG_TINTDIS 0x01000000
#define TX4927_PCIMEM 0x08000000
#define TX4927_PCIMEM_SIZE 0x08000000
......@@ -20,6 +21,8 @@
#define TX4927_PCIC_REG 0xff1fd000
#define TX4927_CCFG_REG 0xff1fe000
#define TX4927_IRC_REG 0xff1ff600
#define TX4927_NR_TMR 3
#define TX4927_TMR_REG(ch) (0xff1ff000 + (ch) * 0x100)
#define TX4927_CE3 0x17f00000 /* 1M */
#define TX4927_PCIRESET_ADDR 0xbc00f006
#define TX4927_PCI_CLK_ADDR (KSEG1 + TX4927_CE3 + 0x00040020)
......
......@@ -641,7 +641,6 @@ struct tx4938_ccfg_reg {
#define tx4938_pcicptr ((struct tx4938_pcic_reg *)TX4938_PCIC_REG)
#define tx4938_pcic1ptr ((struct tx4938_pcic_reg *)TX4938_PCIC1_REG)
#define tx4938_ccfgptr ((struct tx4938_ccfg_reg *)TX4938_CCFG_REG)
#define tx4938_tmrptr(ch) ((struct tx4938_tmr_reg *)TX4938_TMR_REG(ch))
#define tx4938_sioptr(ch) ((struct tx4938_sio_reg *)TX4938_SIO_REG(ch))
#define tx4938_pioptr ((struct tx4938_pio_reg *)TX4938_PIO_REG)
#define tx4938_aclcptr ((struct tx4938_aclc_reg *)TX4938_ACLC_REG)
......
/*
* include/asm-mips/txx9tmr.h
* TX39/TX49 timer controller definitions.
*
* 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.
*/
#ifndef __ASM_TXX9TMR_H
#define __ASM_TXX9TMR_H
#include <linux/types.h>
struct txx9_tmr_reg {
u32 tcr;
u32 tisr;
u32 cpra;
u32 cprb;
u32 itmr;
u32 unused0[3];
u32 ccdr;
u32 unused1[3];
u32 pgmr;
u32 unused2[3];
u32 wtmr;
u32 unused3[43];
u32 trr;
};
/* TMTCR : Timer Control */
#define TXx9_TMTCR_TCE 0x00000080
#define TXx9_TMTCR_CCDE 0x00000040
#define TXx9_TMTCR_CRE 0x00000020
#define TXx9_TMTCR_ECES 0x00000008
#define TXx9_TMTCR_CCS 0x00000004
#define TXx9_TMTCR_TMODE_MASK 0x00000003
#define TXx9_TMTCR_TMODE_ITVL 0x00000000
#define TXx9_TMTCR_TMODE_PGEN 0x00000001
#define TXx9_TMTCR_TMODE_WDOG 0x00000002
/* TMTISR : Timer Int. Status */
#define TXx9_TMTISR_TPIBS 0x00000004
#define TXx9_TMTISR_TPIAS 0x00000002
#define TXx9_TMTISR_TIIS 0x00000001
/* TMITMR : Interval Timer Mode */
#define TXx9_TMITMR_TIIE 0x00008000
#define TXx9_TMITMR_TZCE 0x00000001
/* TMWTMR : Watchdog Timer Mode */
#define TXx9_TMWTMR_TWIE 0x00008000
#define TXx9_TMWTMR_WDIS 0x00000080
#define TXx9_TMWTMR_TWC 0x00000001
void txx9_clocksource_init(unsigned long baseaddr,
unsigned int imbusclk);
void txx9_clockevent_init(unsigned long baseaddr, int irq,
unsigned int imbusclk);
void txx9_tmr_init(unsigned long baseaddr);
#ifdef CONFIG_CPU_TX39XX
#define TXX9_TIMER_BITS 24
#else
#define TXX9_TIMER_BITS 32
#endif
#endif /* __ASM_TXX9TMR_H */
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