diff options
author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-05-15 23:47:02 +0200 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2009-06-12 20:39:48 +0200 |
commit | b54384e3ba6b5535751f317fcd3940a53eed0d3a (patch) | |
tree | 2a2027057af7b2bf1817d530b2ee33ca33e4d660 /cpu | |
parent | 5b4bebe1d20c4f2b70d48b06aed1016785efcc25 (diff) | |
download | u-boot-b54384e3ba6b5535751f317fcd3940a53eed0d3a.zip u-boot-b54384e3ba6b5535751f317fcd3940a53eed0d3a.tar.gz u-boot-b54384e3ba6b5535751f317fcd3940a53eed0d3a.tar.bz2 |
arm: timer and interrupt init rework
actually the timer init use the interrupt_init as init callback
which make the interrupt and timer implementation difficult to follow
so now rename it as int timer_init(void) and use interrupt_init for interrupt
btw also remane the corresponding file to the functionnality implemented
as ixp arch implement two timer - one based on interrupt - so all the timer
related code is moved to timer.c
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'cpu')
-rw-r--r-- | cpu/arm1136/mx31/Makefile | 3 | ||||
-rw-r--r-- | cpu/arm1136/mx31/timer.c (renamed from cpu/arm1136/mx31/interrupts.c) | 3 | ||||
-rw-r--r-- | cpu/arm1136/omap24xx/Makefile | 3 | ||||
-rw-r--r-- | cpu/arm1136/omap24xx/timer.c (renamed from cpu/arm1136/omap24xx/interrupts.c) | 3 | ||||
-rw-r--r-- | cpu/arm1176/s3c64xx/Makefile | 2 | ||||
-rw-r--r-- | cpu/arm1176/s3c64xx/timer.c (renamed from cpu/arm1176/s3c64xx/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/arm720t/interrupts.c | 46 | ||||
-rw-r--r-- | cpu/arm920t/at91rm9200/Makefile | 2 | ||||
-rw-r--r-- | cpu/arm920t/at91rm9200/timer.c (renamed from cpu/arm920t/at91rm9200/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/arm920t/imx/Makefile | 4 | ||||
-rw-r--r-- | cpu/arm920t/imx/timer.c (renamed from cpu/arm920t/imx/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/arm920t/ks8695/Makefile | 3 | ||||
-rw-r--r-- | cpu/arm920t/ks8695/timer.c (renamed from cpu/arm920t/ks8695/interrupts.c) | 12 | ||||
-rw-r--r-- | cpu/arm920t/s3c24x0/Makefile | 5 | ||||
-rw-r--r-- | cpu/arm920t/s3c24x0/timer.c (renamed from cpu/arm920t/s3c24x0/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/arm925t/Makefile | 5 | ||||
-rw-r--r-- | cpu/arm925t/timer.c (renamed from cpu/arm925t/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/arm926ejs/Makefile | 2 | ||||
-rw-r--r-- | cpu/arm926ejs/interrupts.c | 57 | ||||
-rw-r--r-- | cpu/arm_cortexa8/omap3/Makefile | 2 | ||||
-rw-r--r-- | cpu/arm_cortexa8/omap3/timer.c (renamed from cpu/arm_cortexa8/omap3/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/ixp/Makefile | 6 | ||||
-rw-r--r-- | cpu/ixp/interrupts.c | 55 | ||||
-rw-r--r-- | cpu/ixp/timer.c | 54 | ||||
-rw-r--r-- | cpu/lh7a40x/Makefile | 2 | ||||
-rw-r--r-- | cpu/lh7a40x/timer.c (renamed from cpu/lh7a40x/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/pxa/Makefile | 8 | ||||
-rw-r--r-- | cpu/pxa/timer.c (renamed from cpu/pxa/interrupts.c) | 7 | ||||
-rw-r--r-- | cpu/s3c44b0/Makefile | 5 | ||||
-rw-r--r-- | cpu/s3c44b0/timer.c (renamed from cpu/s3c44b0/interrupts.c) | 2 | ||||
-rw-r--r-- | cpu/sa1100/Makefile | 4 | ||||
-rw-r--r-- | cpu/sa1100/timer.c (renamed from cpu/sa1100/interrupts.c) | 5 |
32 files changed, 148 insertions, 166 deletions
diff --git a/cpu/arm1136/mx31/Makefile b/cpu/arm1136/mx31/Makefile index 0e06f0a..1e49e8d 100644 --- a/cpu/arm1136/mx31/Makefile +++ b/cpu/arm1136/mx31/Makefile @@ -25,7 +25,8 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS = interrupts.o generic.o +COBJS += generic.o +COBJS += timer.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/arm1136/mx31/interrupts.c b/cpu/arm1136/mx31/timer.c index ab7202f..29b484e 100644 --- a/cpu/arm1136/mx31/interrupts.c +++ b/cpu/arm1136/mx31/timer.c @@ -89,9 +89,8 @@ static inline unsigned long long us_to_tick(unsigned long long us) } #endif -/* nothing really to do with interrupts, just starts up a counter. */ /* The 32768Hz 32-bit timer overruns in 131072 seconds */ -int interrupt_init (void) +int timer_init (void) { int i; diff --git a/cpu/arm1136/omap24xx/Makefile b/cpu/arm1136/omap24xx/Makefile index f9afed7..2a79d9b 100644 --- a/cpu/arm1136/omap24xx/Makefile +++ b/cpu/arm1136/omap24xx/Makefile @@ -25,9 +25,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS = interrupts.o SOBJS = start.o +COBJS = timer.o + SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/arm1136/omap24xx/interrupts.c b/cpu/arm1136/omap24xx/timer.c index a0c535d..8dd8d7b 100644 --- a/cpu/arm1136/omap24xx/interrupts.c +++ b/cpu/arm1136/omap24xx/timer.c @@ -42,8 +42,7 @@ static ulong timestamp; static ulong lastinc; -/* nothing really to do with interrupts, just starts up a counter. */ -int interrupt_init (void) +int timer_init (void) { int32_t val; diff --git a/cpu/arm1176/s3c64xx/Makefile b/cpu/arm1176/s3c64xx/Makefile index fa4ee3f..4656d9a 100644 --- a/cpu/arm1176/s3c64xx/Makefile +++ b/cpu/arm1176/s3c64xx/Makefile @@ -28,8 +28,8 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS-y = interrupts.o COBJS-$(CONFIG_S3C6400) += cpu_init.o speed.o +COBJS-y += timer.o OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y)) diff --git a/cpu/arm1176/s3c64xx/interrupts.c b/cpu/arm1176/s3c64xx/timer.c index 7bb9848..22a5b77 100644 --- a/cpu/arm1176/s3c64xx/interrupts.c +++ b/cpu/arm1176/s3c64xx/timer.c @@ -66,7 +66,7 @@ static unsigned long lastdec; /* Monotonic incrementing timer */ static unsigned long long timestamp; -int interrupt_init(void) +int timer_init(void) { s3c64xx_timers *const timers = s3c64xx_get_base_timers(); diff --git a/cpu/arm720t/interrupts.c b/cpu/arm720t/interrupts.c index 39ed345..ff21314 100644 --- a/cpu/arm720t/interrupts.c +++ b/cpu/arm720t/interrupts.c @@ -110,9 +110,34 @@ static void timer_isr( void *data) { static ulong timestamp; static ulong lastdec; +#if defined(CONFIG_USE_IRQ) && defined(CONFIG_S3C4510B) int interrupt_init (void) { + int i; + + /* install default interrupt handlers */ + for ( i = 0; i < N_IRQS; i++) { + IRQ_HANDLER[i].m_data = (void *)i; + IRQ_HANDLER[i].m_func = default_isr; + } + + /* configure interrupts for IRQ mode */ + PUT_REG( REG_INTMODE, 0x0); + /* clear any pending interrupts */ + PUT_REG( REG_INTPEND, 0x1FFFFF); + + lastdec = 0; + + /* install interrupt handler for timer */ + IRQ_HANDLER[INT_TIMER0].m_data = (void *)×tamp; + IRQ_HANDLER[INT_TIMER0].m_func = timer_isr; + + return 0; +} +#endif +int timer_init (void) +{ #if defined(CONFIG_NETARM) /* disable all interrupts */ IRQEN = 0; @@ -137,25 +162,6 @@ int interrupt_init (void) /* set timer 1 counter */ lastdec = IO_TC1D = TIMER_LOAD_VAL; #elif defined(CONFIG_S3C4510B) - int i; - - /* install default interrupt handlers */ - for ( i = 0; i < N_IRQS; i++) { - IRQ_HANDLER[i].m_data = (void *)i; - IRQ_HANDLER[i].m_func = default_isr; - } - - /* configure interrupts for IRQ mode */ - PUT_REG( REG_INTMODE, 0x0); - /* clear any pending interrupts */ - PUT_REG( REG_INTPEND, 0x1FFFFF); - - lastdec = 0; - - /* install interrupt handler for timer */ - IRQ_HANDLER[INT_TIMER0].m_data = (void *)×tamp; - IRQ_HANDLER[INT_TIMER0].m_func = timer_isr; - /* configure free running timer 0 */ PUT_REG( REG_TMOD, 0x0); /* Stop timer 0 */ @@ -187,7 +193,7 @@ int interrupt_init (void) PUT32(T0TCR, 1); /* enable timer0 */ #else -#error No interrupt_init() defined for this CPU type +#error No timer_init() defined for this CPU type #endif timestamp = 0; diff --git a/cpu/arm920t/at91rm9200/Makefile b/cpu/arm920t/at91rm9200/Makefile index 161ca94..73aeeac 100644 --- a/cpu/arm920t/at91rm9200/Makefile +++ b/cpu/arm920t/at91rm9200/Makefile @@ -31,10 +31,10 @@ COBJS += bcm5221.o COBJS += dm9161.o COBJS += ether.o COBJS += i2c.o -COBJS += interrupts.o COBJS += lxt972.o COBJS += reset.o COBJS += spi.o +COBJS += timer.o COBJS += usb.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/cpu/arm920t/at91rm9200/interrupts.c b/cpu/arm920t/at91rm9200/timer.c index 4c38a9a..235d107 100644 --- a/cpu/arm920t/at91rm9200/interrupts.c +++ b/cpu/arm920t/at91rm9200/timer.c @@ -45,7 +45,7 @@ AT91PS_TC tmr; static ulong timestamp; static ulong lastinc; -int interrupt_init (void) +int timer_init (void) { tmr = AT91C_BASE_TC0; diff --git a/cpu/arm920t/imx/Makefile b/cpu/arm920t/imx/Makefile index d3352deb..28945e2 100644 --- a/cpu/arm920t/imx/Makefile +++ b/cpu/arm920t/imx/Makefile @@ -25,7 +25,9 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS = generic.o interrupts.o speed.o +COBJS += generic.o +COBJS += speed.o +COBJS += timer.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/arm920t/imx/interrupts.c b/cpu/arm920t/imx/timer.c index 1beaf9d..280c682 100644 --- a/cpu/arm920t/imx/interrupts.c +++ b/cpu/arm920t/imx/timer.c @@ -35,7 +35,7 @@ #include <arm920t.h> #include <asm/arch/imx-regs.h> -int interrupt_init (void) +int timer_init (void) { int i; /* setup GP Timer 1 */ diff --git a/cpu/arm920t/ks8695/Makefile b/cpu/arm920t/ks8695/Makefile index f6b0063..f53fdc2 100644 --- a/cpu/arm920t/ks8695/Makefile +++ b/cpu/arm920t/ks8695/Makefile @@ -25,9 +25,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS = interrupts.o SOBJS = lowlevel_init.o +COBJS = timer.o + SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/arm920t/ks8695/interrupts.c b/cpu/arm920t/ks8695/timer.c index 883d689..22987bc 100644 --- a/cpu/arm920t/ks8695/interrupts.c +++ b/cpu/arm920t/ks8695/timer.c @@ -29,13 +29,13 @@ #define ks8695_read(a) *((volatile ulong *) (KS8695_IO_BASE + (a))) #define ks8695_write(a,v) *((volatile ulong *) (KS8695_IO_BASE + (a))) = (v) -int timer_inited; ulong timer_ticks; -int interrupt_init (void) +int timer_init (void) { - /* nothing happens here - we don't setup any IRQs */ - return (0); + reset_timer(); + + return 0; } /* @@ -53,7 +53,6 @@ void reset_timer_masked(void) ks8695_write(KS8695_TIMER1_PCOUNT, TIMER_PULSE); ks8695_write(KS8695_TIMER_CTRL, 0x2); timer_ticks = 0; - timer_inited++; } void reset_timer(void) @@ -87,9 +86,6 @@ void udelay(ulong usec) ulong start = get_timer_masked(); ulong end; - if (!timer_inited) - reset_timer(); - /* Only 1ms resolution :-( */ end = usec / 1000; while (get_timer(start) < end) diff --git a/cpu/arm920t/s3c24x0/Makefile b/cpu/arm920t/s3c24x0/Makefile index 3afe19c..5d2be2c 100644 --- a/cpu/arm920t/s3c24x0/Makefile +++ b/cpu/arm920t/s3c24x0/Makefile @@ -25,7 +25,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS = interrupts.o speed.o usb.o usb_ohci.o +COBJS += speed.o +COBJS += timer.o +COBJS += usb.o +COBJS += usb_ohci.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/arm920t/s3c24x0/interrupts.c b/cpu/arm920t/s3c24x0/timer.c index b8ce6ae..f3c0ed6 100644 --- a/cpu/arm920t/s3c24x0/interrupts.c +++ b/cpu/arm920t/s3c24x0/timer.c @@ -52,7 +52,7 @@ static inline ulong READ_TIMER(void) static ulong timestamp; static ulong lastdec; -int interrupt_init (void) +int timer_init (void) { S3C24X0_TIMERS * const timers = S3C24X0_GetBase_TIMERS(); diff --git a/cpu/arm925t/Makefile b/cpu/arm925t/Makefile index 0d4912c..8d0e88f 100644 --- a/cpu/arm925t/Makefile +++ b/cpu/arm925t/Makefile @@ -26,7 +26,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = interrupts.o cpu.o omap925.o + +COBJS += cpu.o +COBJS += omap925.o +COBJS += timer.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/arm925t/interrupts.c b/cpu/arm925t/timer.c index 179992d..c16ef25 100644 --- a/cpu/arm925t/interrupts.c +++ b/cpu/arm925t/timer.c @@ -47,7 +47,7 @@ static uint32_t timestamp; static uint32_t lastdec; /* nothing really to do with interrupts, just starts up a counter. */ -int interrupt_init (void) +int timer_init (void) { /* Start the decrementer ticking down from 0xffffffff */ __raw_writel(TIMER_LOAD_VAL, CONFIG_SYS_TIMERBASE + LOAD_TIM); diff --git a/cpu/arm926ejs/Makefile b/cpu/arm926ejs/Makefile index d5ac7d3..7701b03 100644 --- a/cpu/arm926ejs/Makefile +++ b/cpu/arm926ejs/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = interrupts.o cpu.o +COBJS = cpu.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) diff --git a/cpu/arm926ejs/interrupts.c b/cpu/arm926ejs/interrupts.c deleted file mode 100644 index ce979f3..0000000 --- a/cpu/arm926ejs/interrupts.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * (C) Copyright 2003 - * Texas Instruments <www.ti.com> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * (C) Copyright 2002-2004 - * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> - * - * (C) Copyright 2004 - * Philippe Robin, ARM Ltd. <philippe.robin@arm.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <arm926ejs.h> - -#ifdef CONFIG_INTEGRATOR - - /* Timer functionality supplied by Integrator board (AP or CP) */ - -#else - -/* nothing really to do with interrupts, just starts up a counter. */ -int interrupt_init (void) -{ - extern void timer_init(void); - - timer_init(); - - return 0; -} - -#endif /* CONFIG_INTEGRATOR */ diff --git a/cpu/arm_cortexa8/omap3/Makefile b/cpu/arm_cortexa8/omap3/Makefile index d1e658d..edf5cb2 100644 --- a/cpu/arm_cortexa8/omap3/Makefile +++ b/cpu/arm_cortexa8/omap3/Makefile @@ -32,7 +32,7 @@ COBJS += clock.o COBJS += mem.o COBJS += syslib.o COBJS += sys_info.o -COBJS += interrupts.o +COBJS += timer.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) diff --git a/cpu/arm_cortexa8/omap3/interrupts.c b/cpu/arm_cortexa8/omap3/timer.c index 3fe13fb..05cfe76 100644 --- a/cpu/arm_cortexa8/omap3/interrupts.c +++ b/cpu/arm_cortexa8/omap3/timer.c @@ -50,7 +50,7 @@ static gptimer_t *timer_base = (gptimer_t *)CONFIG_SYS_TIMERBASE; #define TIMER_CLOCK (V_SCLK / (2 << CONFIG_SYS_PTV)) #define TIMER_LOAD_VAL 0xffffffff -int interrupt_init(void) +int timer_init(void) { /* start the counter ticking up, reload value on overflow */ writel(TIMER_LOAD_VAL, &timer_base->tldr); diff --git a/cpu/ixp/Makefile b/cpu/ixp/Makefile index a673cb1..1403c4f 100644 --- a/cpu/ixp/Makefile +++ b/cpu/ixp/Makefile @@ -26,12 +26,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o + COBJS-y += cpu.o -ifndef CONFIG_USE_IRQ +COBJS-$(CONFIG_USE_IRQ) += interrupts.o COBJS-y += timer.o -else -COBJS-y += interrupts.o -endif SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) diff --git a/cpu/ixp/interrupts.c b/cpu/ixp/interrupts.c index ee0129e..a05e439 100644 --- a/cpu/ixp/interrupts.c +++ b/cpu/ixp/interrupts.c @@ -33,14 +33,6 @@ #include <asm/arch/ixp425.h> #include <asm/proc-armv/ptrace.h> -/* - * When interrupts are enabled, use timer 2 for time/delay generation... - */ - -#define FREQ 66666666 -#define CLOCK_TICK_RATE (((FREQ / CONFIG_SYS_HZ & ~IXP425_OST_RELOAD_MASK) + 1) * CONFIG_SYS_HZ) -#define LATCH ((CLOCK_TICK_RATE + CONFIG_SYS_HZ/2) / CONFIG_SYS_HZ) /* For divider */ - struct _irq_handler { void *m_data; void (*m_func)( void *data); @@ -48,8 +40,6 @@ struct _irq_handler { static struct _irq_handler IRQ_HANDLER[N_IRQS]; -static volatile ulong timestamp; - static void default_isr(void *data) { printf("default_isr(): called for IRQ %d, Interrupt Status=%x PR=%x\n", @@ -61,33 +51,20 @@ static int next_irq(void) return (((*IXP425_ICIH & 0x000000fc) >> 2) - 1); } -static void timer_isr(void *data) -{ - unsigned int *pTime = (unsigned int *)data; - - (*pTime)++; - - /* - * Reset IRQ source - */ - *IXP425_OSST = IXP425_OSST_TIMER_2_PEND; -} - -ulong get_timer (ulong base) +void do_irq (struct pt_regs *pt_regs) { - return timestamp - base; -} + int irq = next_irq(); -void reset_timer (void) -{ - timestamp = 0; + IRQ_HANDLER[irq].m_func(IRQ_HANDLER[irq].m_data); } -void do_irq (struct pt_regs *pt_regs) +void irq_install_handler (int irq, interrupt_handler_t handle_irq, void *data) { - int irq = next_irq(); + if (irq >= N_IRQS || !handle_irq) + return; - IRQ_HANDLER[irq].m_func(IRQ_HANDLER[irq].m_data); + IRQ_HANDLER[irq].m_data = data; + IRQ_HANDLER[irq].m_func = handle_irq; } int interrupt_init (void) @@ -95,23 +72,11 @@ int interrupt_init (void) int i; /* install default interrupt handlers */ - for (i = 0; i < N_IRQS; i++) { - IRQ_HANDLER[i].m_data = (void *)i; - IRQ_HANDLER[i].m_func = default_isr; - } - - /* install interrupt handler for timer */ - IRQ_HANDLER[IXP425_TIMER_2_IRQ].m_data = (void *)×tamp; - IRQ_HANDLER[IXP425_TIMER_2_IRQ].m_func = timer_isr; - - /* setup the Timer counter value */ - *IXP425_OSRT2 = (LATCH & ~IXP425_OST_RELOAD_MASK) | IXP425_OST_ENABLE; + for (i = 0; i < N_IRQS; i++) + irq_install_handler(i, default_isr, (void *)i); /* configure interrupts for IRQ mode */ *IXP425_ICLR = 0x00000000; - /* enable timer irq */ - *IXP425_ICMR = (1 << IXP425_TIMER_2_IRQ); - return (0); } diff --git a/cpu/ixp/timer.c b/cpu/ixp/timer.c index deb227a..6856149 100644 --- a/cpu/ixp/timer.c +++ b/cpu/ixp/timer.c @@ -32,6 +32,54 @@ #include <common.h> #include <asm/arch/ixp425.h> +#ifdef CONFIG_TIMER_IRQ + +#define FREQ 66666666 +#define CLOCK_TICK_RATE (((FREQ / CONFIG_SYS_HZ & ~IXP425_OST_RELOAD_MASK) + 1) * CONFIG_SYS_HZ) +#define LATCH ((CLOCK_TICK_RATE + CONFIG_SYS_HZ/2) / CONFIG_SYS_HZ) /* For divider */ + +/* + * When interrupts are enabled, use timer 2 for time/delay generation... + */ + +static volatile ulong timestamp; + +static void timer_isr(void *data) +{ + unsigned int *pTime = (unsigned int *)data; + + (*pTime)++; + + /* + * Reset IRQ source + */ + *IXP425_OSST = IXP425_OSST_TIMER_2_PEND; +} + +ulong get_timer (ulong base) +{ + return timestamp - base; +} + +void reset_timer (void) +{ + timestamp = 0; +} + +int timer_init (void) +{ + /* install interrupt handler for timer */ + irq_install_handler(IXP425_TIMER_2_IRQ, timer_isr, (void *)×tamp); + + /* setup the Timer counter value */ + *IXP425_OSRT2 = (LATCH & ~IXP425_OST_RELOAD_MASK) | IXP425_OST_ENABLE; + + /* enable timer irq */ + *IXP425_ICMR = (1 << IXP425_TIMER_2_IRQ); + + return 0; +} +#else ulong get_timer (ulong base) { return get_timer_masked () - base; @@ -79,3 +127,9 @@ ulong get_timer_masked (void) } return (reload_constant - current); } + +int timer_init(void) +{ + return 0; +} +#endif diff --git a/cpu/lh7a40x/Makefile b/cpu/lh7a40x/Makefile index bac2a64..b9ae76e 100644 --- a/cpu/lh7a40x/Makefile +++ b/cpu/lh7a40x/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = cpu.o speed.o interrupts.o serial.o +COBJS = cpu.o speed.o serial.o timer.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/lh7a40x/interrupts.c b/cpu/lh7a40x/timer.c index d39e707..f0baf14 100644 --- a/cpu/lh7a40x/interrupts.c +++ b/cpu/lh7a40x/timer.c @@ -47,7 +47,7 @@ static inline ulong READ_TIMER(void) static ulong timestamp; static ulong lastdec; -int interrupt_init (void) +int timer_init (void) { lh7a40x_timers_t* timers = LH7A40X_TIMERS_PTR; lh7a40x_timer_t* timer = &timers->timer1; diff --git a/cpu/pxa/Makefile b/cpu/pxa/Makefile index 42903b2..5dc3a52 100644 --- a/cpu/pxa/Makefile +++ b/cpu/pxa/Makefile @@ -26,7 +26,13 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = serial.o interrupts.o cpu.o i2c.o pxafb.o usb.o + +COBJS += cpu.o +COBJS += i2c.o +COBJS += pxafb.o +COBJS += serial.o +COBJS += timer.o +COBJS += usb.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/pxa/interrupts.c b/cpu/pxa/timer.c index 2bc5c50..e2df3a5 100644 --- a/cpu/pxa/interrupts.c +++ b/cpu/pxa/timer.c @@ -56,10 +56,11 @@ static inline unsigned long long us_to_tick(unsigned long long us) return us; } -int interrupt_init (void) +int timer_init (void) { - /* nothing happens here - we don't setup any IRQs */ - return (0); + reset_timer(); + + return 0; } void reset_timer (void) diff --git a/cpu/s3c44b0/Makefile b/cpu/s3c44b0/Makefile index ae909a6..6da2016 100644 --- a/cpu/s3c44b0/Makefile +++ b/cpu/s3c44b0/Makefile @@ -26,7 +26,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = cache.o cpu.o interrupts.o + +COBJS += cache.o +COBJS += cpu.o +COBJS += timer.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/s3c44b0/interrupts.c b/cpu/s3c44b0/timer.c index eb23e6a..34184ab 100644 --- a/cpu/s3c44b0/interrupts.c +++ b/cpu/s3c44b0/timer.c @@ -40,7 +40,7 @@ static ulong timestamp; static ulong lastdec; -int interrupt_init (void) +int timer_init (void) { TCFG0 = 0x000000E9; TCFG1 = 0x00000004; diff --git a/cpu/sa1100/Makefile b/cpu/sa1100/Makefile index fd696f7..28b6682 100644 --- a/cpu/sa1100/Makefile +++ b/cpu/sa1100/Makefile @@ -26,7 +26,9 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = interrupts.o cpu.o + +COBJS += cpu.o +COBJS += timer.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/sa1100/interrupts.c b/cpu/sa1100/timer.c index 2eff045..3f77e81 100644 --- a/cpu/sa1100/interrupts.c +++ b/cpu/sa1100/timer.c @@ -29,10 +29,9 @@ #include <common.h> #include <SA-1100.h> -int interrupt_init (void) +int timer_init (void) { - /* nothing happens here - we don't setup any IRQs */ - return (0); + return 0; } void reset_timer (void) |