obj-$(CONFIG_ARCH_IOP13XX) += setup.o
obj-$(CONFIG_ARCH_IOP13XX) += irq.o
-obj-$(CONFIG_ARCH_IOP13XX) += time.o
obj-$(CONFIG_ARCH_IOP13XX) += pci.o
obj-$(CONFIG_ARCH_IOP13XX) += io.o
obj-$(CONFIG_MACH_IQ81340SC) += iq81340sc.o
#include <asm/mach/arch.h>
#include <asm/arch/pci.h>
#include <asm/mach/time.h>
+#include <asm/arch/time.h>
extern int init_atu; /* Flag to select which ATU(s) to initialize / disable */
static void __init iq81340mc_timer_init(void)
{
- iop13xx_init_time(400000000);
+ iop_init_time(400000000);
}
static struct sys_timer iq81340mc_timer = {
.init = iq81340mc_timer_init,
- .offset = iop13xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
MACHINE_START(IQ81340MC, "Intel IQ81340MC")
#include <asm/mach/arch.h>
#include <asm/arch/pci.h>
#include <asm/mach/time.h>
+#include <asm/arch/time.h>
extern int init_atu;
static void __init iq81340sc_timer_init(void)
{
- iop13xx_init_time(400000000);
+ iop_init_time(400000000);
}
static struct sys_timer iq81340sc_timer = {
.init = iq81340sc_timer_init,
- .offset = iop13xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
MACHINE_START(IQ81340SC, "Intel IQ81340SC")
+++ /dev/null
-/*
- * arch/arm/mach-iop13xx/time.c
- *
- * Timer code for IOP13xx (copied from IOP32x/IOP33x implementation)
- *
- * Author: Deepak Saxena <dsaxena@mvista.com>
- *
- * Copyright 2002-2003 MontaVista Software Inc.
- *
- * 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
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/init.h>
-#include <linux/timex.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/mach/irq.h>
-#include <asm/mach/time.h>
-
-static unsigned long ticks_per_jiffy;
-static unsigned long ticks_per_usec;
-static unsigned long next_jiffy_time;
-
-static inline u32 read_tcr1(void)
-{
- u32 val;
- asm volatile("mrc p6, 0, %0, c3, c9, 0" : "=r" (val));
- return val;
-}
-
-unsigned long iop13xx_gettimeoffset(void)
-{
- unsigned long offset;
-
- offset = next_jiffy_time - read_tcr1();
-
- return offset / ticks_per_usec;
-}
-
-static irqreturn_t
-iop13xx_timer_interrupt(int irq, void *dev_id)
-{
- write_seqlock(&xtime_lock);
-
- asm volatile("mcr p6, 0, %0, c6, c9, 0" : : "r" (1));
-
- while ((signed long)(next_jiffy_time - read_tcr1())
- >= ticks_per_jiffy) {
- timer_tick();
- next_jiffy_time -= ticks_per_jiffy;
- }
-
- write_sequnlock(&xtime_lock);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction iop13xx_timer_irq = {
- .name = "IOP13XX Timer Tick",
- .handler = iop13xx_timer_interrupt,
- .flags = IRQF_DISABLED | IRQF_TIMER,
-};
-
-void __init iop13xx_init_time(unsigned long tick_rate)
-{
- u32 timer_ctl;
-
- ticks_per_jiffy = (tick_rate + HZ/2) / HZ;
- ticks_per_usec = tick_rate / 1000000;
- next_jiffy_time = 0xffffffff;
-
- timer_ctl = IOP13XX_TMR_EN | IOP13XX_TMR_PRIVILEGED |
- IOP13XX_TMR_RELOAD | IOP13XX_TMR_RATIO_1_1;
-
- /*
- * We use timer 0 for our timer interrupt, and timer 1 as
- * monotonic counter for tracking missed jiffies.
- */
- asm volatile("mcr p6, 0, %0, c4, c9, 0" : : "r" (ticks_per_jiffy - 1));
- asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (timer_ctl));
- asm volatile("mcr p6, 0, %0, c5, c9, 0" : : "r" (0xffffffff));
- asm volatile("mcr p6, 0, %0, c1, c9, 0" : : "r" (timer_ctl));
-
- setup_irq(IRQ_IOP13XX_TIMER0, &iop13xx_timer_irq);
-}
#include <asm/mach/time.h>
#include <asm/mach-types.h>
#include <asm/page.h>
+#include <asm/arch/time.h>
/*
* GLAN Tank timer tick configuration.
static void __init glantank_timer_init(void)
{
/* 33.333 MHz crystal. */
- iop3xx_init_time(200000000);
+ iop_init_time(200000000);
}
static struct sys_timer glantank_timer = {
.init = glantank_timer_init,
- .offset = iop3xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
-
+#include <asm/arch/time.h>
/*
* The EP80219 and IQ31244 use the same machine ID. To find out
{
if (is_80219()) {
/* 33.333 MHz crystal. */
- iop3xx_init_time(200000000);
+ iop_init_time(200000000);
} else {
/* 33.000 MHz crystal. */
- iop3xx_init_time(198000000);
+ iop_init_time(198000000);
}
}
static struct sys_timer iq31244_timer = {
.init = iq31244_timer_init,
- .offset = iop3xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
+#include <asm/arch/time.h>
/*
* IQ80321 timer tick configuration.
static void __init iq80321_timer_init(void)
{
/* 33.333 MHz crystal. */
- iop3xx_init_time(200000000);
+ iop_init_time(200000000);
}
static struct sys_timer iq80321_timer = {
.init = iq80321_timer_init,
- .offset = iop3xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
+#include <asm/arch/time.h>
/*
* N2100 timer tick configuration.
static void __init n2100_timer_init(void)
{
/* 33.000 MHz crystal. */
- iop3xx_init_time(198000000);
+ iop_init_time(198000000);
}
static struct sys_timer n2100_timer = {
.init = n2100_timer_init,
- .offset = iop3xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
+#include <asm/arch/time.h>
/*
* IQ80331 timer tick configuration.
{
/* D-Step parts run at a higher internal bus frequency */
if (*IOP3XX_ATURID >= 0xa)
- iop3xx_init_time(333000000);
+ iop_init_time(333000000);
else
- iop3xx_init_time(266000000);
+ iop_init_time(266000000);
}
static struct sys_timer iq80331_timer = {
.init = iq80331_timer_init,
- .offset = iop3xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
+#include <asm/arch/time.h>
/*
* IQ80332 timer tick configuration.
{
/* D-Step parts and the iop333 run at a higher internal bus frequency */
if (*IOP3XX_ATURID >= 0xa || *IOP3XX_ATUDID == 0x374)
- iop3xx_init_time(333000000);
+ iop_init_time(333000000);
else
- iop3xx_init_time(266000000);
+ iop_init_time(266000000);
}
static struct sys_timer iq80332_timer = {
.init = iq80332_timer_init,
- .offset = iop3xx_gettimeoffset,
+ .offset = iop_gettimeoffset,
};
# IOP13XX
obj-$(CONFIG_ARCH_IOP13XX) += cp6.o
+obj-$(CONFIG_ARCH_IOP13XX) += time.o
obj-m :=
obj-n :=
#include <asm/uaccess.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
-
-#ifdef CONFIG_ARCH_IOP32X
-#define IRQ_IOP3XX_TIMER0 IRQ_IOP32X_TIMER0
-#else
-#ifdef CONFIG_ARCH_IOP33X
-#define IRQ_IOP3XX_TIMER0 IRQ_IOP33X_TIMER0
-#endif
-#endif
+#include <asm/arch/time.h>
static unsigned long ticks_per_jiffy;
static unsigned long ticks_per_usec;
static unsigned long next_jiffy_time;
-unsigned long iop3xx_gettimeoffset(void)
+unsigned long iop_gettimeoffset(void)
{
- unsigned long offset;
+ unsigned long offset, temp1, temp2;
+
+ /* enable cp6, if necessary, to avoid taking the overhead of an
+ * undefined instruction trap
+ */
+ asm volatile (
+ "mrc p15, 0, %0, c15, c1, 0\n\t"
+ "ands %1, %0, #(1 << 6)\n\t"
+ "orreq %0, %0, #(1 << 6)\n\t"
+ "mcreq p15, 0, %0, c15, c1, 0\n\t"
+#ifdef CONFIG_XSCALE
+ "mrceq p15, 0, %0, c15, c1, 0\n\t"
+ "moveq %0, %0\n\t"
+ "subeq pc, pc, #4\n\t"
+#endif
+ : "=r"(temp1), "=r"(temp2) : : "cc");
- offset = next_jiffy_time - *IOP3XX_TU_TCR1;
+ offset = next_jiffy_time - read_tcr1();
return offset / ticks_per_usec;
}
static irqreturn_t
-iop3xx_timer_interrupt(int irq, void *dev_id)
+iop_timer_interrupt(int irq, void *dev_id)
{
write_seqlock(&xtime_lock);
- asm volatile("mcr p6, 0, %0, c6, c1, 0" : : "r" (1));
+ write_tisr(1);
- while ((signed long)(next_jiffy_time - *IOP3XX_TU_TCR1)
- >= ticks_per_jiffy) {
+ while ((signed long)(next_jiffy_time - read_tcr1())
+ >= ticks_per_jiffy) {
timer_tick();
next_jiffy_time -= ticks_per_jiffy;
}
return IRQ_HANDLED;
}
-static struct irqaction iop3xx_timer_irq = {
- .name = "IOP3XX Timer Tick",
- .handler = iop3xx_timer_interrupt,
+static struct irqaction iop_timer_irq = {
+ .name = "IOP Timer Tick",
+ .handler = iop_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER,
};
-void __init iop3xx_init_time(unsigned long tick_rate)
+void __init iop_init_time(unsigned long tick_rate)
{
u32 timer_ctl;
ticks_per_usec = tick_rate / 1000000;
next_jiffy_time = 0xffffffff;
- timer_ctl = IOP3XX_TMR_EN | IOP3XX_TMR_PRIVILEGED |
- IOP3XX_TMR_RELOAD | IOP3XX_TMR_RATIO_1_1;
+ timer_ctl = IOP_TMR_EN | IOP_TMR_PRIVILEGED |
+ IOP_TMR_RELOAD | IOP_TMR_RATIO_1_1;
/*
* We use timer 0 for our timer interrupt, and timer 1 as
* monotonic counter for tracking missed jiffies.
*/
- asm volatile("mcr p6, 0, %0, c4, c1, 0" : : "r" (ticks_per_jiffy - 1));
- asm volatile("mcr p6, 0, %0, c0, c1, 0" : : "r" (timer_ctl));
- asm volatile("mcr p6, 0, %0, c5, c1, 0" : : "r" (0xffffffff));
- asm volatile("mcr p6, 0, %0, c1, c1, 0" : : "r" (timer_ctl));
+ write_trr0(ticks_per_jiffy - 1);
+ write_tmr0(timer_ctl);
+ write_trr1(0xffffffff);
+ write_tmr1(timer_ctl);
- setup_irq(IRQ_IOP3XX_TIMER0, &iop3xx_timer_irq);
+ setup_irq(IRQ_IOP_TIMER0, &iop_timer_irq);
}
void iop13xx_map_io(void);
void iop13xx_platform_init(void);
void iop13xx_init_irq(void);
-void iop13xx_init_time(unsigned long tickrate);
-unsigned long iop13xx_gettimeoffset(void);
/* CPUID CP6 R0 Page 0 */
static inline int iop13xx_cpu_id(void)
#define IOP13XX_PBI_BAR1 IOP13XX_PBI_OFFSET(0x10)
#define IOP13XX_PBI_LR1 IOP13XX_PBI_OFFSET(0x14)
-#define IOP13XX_TMR_TC 0x01
-#define IOP13XX_TMR_EN 0x02
-#define IOP13XX_TMR_RELOAD 0x04
-#define IOP13XX_TMR_PRIVILEGED 0x08
-
-#define IOP13XX_TMR_RATIO_1_1 0x00
-#define IOP13XX_TMR_RATIO_4_1 0x10
-#define IOP13XX_TMR_RATIO_8_1 0x20
-#define IOP13XX_TMR_RATIO_16_1 0x30
-
#endif /* _IOP13XX_HW_H_ */
--- /dev/null
+#ifndef _IOP13XX_TIME_H_
+#define _IOP13XX_TIME_H_
+#define IRQ_IOP_TIMER0 IRQ_IOP13XX_TIMER0
+
+#define IOP_TMR_EN 0x02
+#define IOP_TMR_RELOAD 0x04
+#define IOP_TMR_PRIVILEGED 0x08
+#define IOP_TMR_RATIO_1_1 0x00
+
+void iop_init_time(unsigned long tickrate);
+unsigned long iop_gettimeoffset(void);
+
+static inline void write_tmr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (val));
+}
+
+static inline void write_tmr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c1, c9, 0" : : "r" (val));
+}
+
+static inline u32 read_tcr0(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c2, c9, 0" : "=r" (val));
+ return val;
+}
+
+static inline u32 read_tcr1(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c3, c9, 0" : "=r" (val));
+ return val;
+}
+
+static inline void write_trr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c4, c9, 0" : : "r" (val));
+}
+
+static inline void write_trr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c5, c9, 0" : : "r" (val));
+}
+
+static inline void write_tisr(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c6, c9, 0" : : "r" (val));
+}
+#endif
--- /dev/null
+#ifndef _IOP32X_TIME_H_
+#define _IOP32X_TIME_H_
+#define IRQ_IOP_TIMER0 IRQ_IOP32X_TIMER0
+#endif
--- /dev/null
+#ifndef _IOP33X_TIME_H_
+#define _IOP33X_TIME_H_
+#define IRQ_IOP_TIMER0 IRQ_IOP33X_TIMER0
+#endif
#define IOP3XX_TU_TRR1 (volatile u32 *)IOP3XX_TIMER_REG(0x0014)
#define IOP3XX_TU_TISR (volatile u32 *)IOP3XX_TIMER_REG(0x0018)
#define IOP3XX_TU_WDTCR (volatile u32 *)IOP3XX_TIMER_REG(0x001c)
-#define IOP3XX_TMR_TC 0x01
-#define IOP3XX_TMR_EN 0x02
-#define IOP3XX_TMR_RELOAD 0x04
-#define IOP3XX_TMR_PRIVILEGED 0x09
-#define IOP3XX_TMR_RATIO_1_1 0x00
-#define IOP3XX_TMR_RATIO_4_1 0x10
-#define IOP3XX_TMR_RATIO_8_1 0x20
-#define IOP3XX_TMR_RATIO_16_1 0x30
+#define IOP_TMR_EN 0x02
+#define IOP_TMR_RELOAD 0x04
+#define IOP_TMR_PRIVILEGED 0x08
+#define IOP_TMR_RATIO_1_1 0x00
/* Application accelerator unit */
#define IOP3XX_AAU_ACR (volatile u32 *)IOP3XX_REG_ADDR(0x0800)
#ifndef __ASSEMBLY__
void iop3xx_map_io(void);
-void iop3xx_init_time(unsigned long);
-unsigned long iop3xx_gettimeoffset(void);
void iop_init_cp6_handler(void);
+void iop_init_time(unsigned long tickrate);
+unsigned long iop_gettimeoffset(void);
+
+static inline void write_tmr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c0, c1, 0" : : "r" (val));
+}
+
+static inline void write_tmr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c1, c1, 0" : : "r" (val));
+}
+
+static inline u32 read_tcr0(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c2, c1, 0" : "=r" (val));
+ return val;
+}
+
+static inline u32 read_tcr1(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c3, c1, 0" : "=r" (val));
+ return val;
+}
+
+static inline void write_trr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c4, c1, 0" : : "r" (val));
+}
+
+static inline void write_trr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c5, c1, 0" : : "r" (val));
+}
+
+static inline void write_tisr(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c6, c1, 0" : : "r" (val));
+}
extern struct platform_device iop3xx_i2c0_device;
extern struct platform_device iop3xx_i2c1_device;
projects / linux-2.6 / commitdiff