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[MIPS] txx9tmr clockevent/clocksource driver

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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: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto 2007-10-25 01:34:09 +09:00 • committed by Ralf Baechle
parent 22df3f53e3
commit 229f773ef4
12 changed files with 273 additions and 145 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
arch/mips/Kconfig
View file

@ -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

83
arch/mips/jmr3927/rbhma3100/setup.c
View file

@ -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;

1
arch/mips/kernel/Makefile
View file

@ -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

171
arch/mips/kernel/cevt-txx9.c Normal file
View file

@ -0,0 +1,171 @@
/*
* 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);
}

17
arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
View file

@ -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)

19
arch/mips/tx4938/toshiba_rbtx4938/setup.c
View file

@ -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)

9
include/asm-mips/jmr3927/jmr3927.h
View file

@ -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:
*

4
include/asm-mips/jmr3927/tx3927.h
View file

@ -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
/*

37
include/asm-mips/jmr3927/txx927.h
View file

@ -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
*/

3
include/asm-mips/tx4927/tx4927_pci.h
View file

@ -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)

1
include/asm-mips/tx4938/tx4938.h
View file

@ -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)

67
include/asm-mips/txx9tmr.h Normal file
View file

@ -0,0 +1,67 @@
/*
* 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 */