diff options
-rw-r--r-- | arch/arm/mach-at91/at91cap9.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9260.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9261.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9263.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam926x_time.c | 38 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9g45.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9rl.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/generic.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-at91/include/mach/at91_pit.h | 8 | ||||
-rw-r--r-- | arch/arm/mach-at91/include/mach/at91cap9.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/include/mach/at91sam9260.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/include/mach/at91sam9261.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/include/mach/at91sam9263.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/include/mach/at91sam9g45.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/include/mach/at91sam9rl.h | 2 |
15 files changed, 45 insertions, 20 deletions
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c index 3687207..abfe368 100644 --- a/arch/arm/mach-at91/at91cap9.c +++ b/arch/arm/mach-at91/at91cap9.c @@ -335,6 +335,7 @@ static void __init at91cap9_map_io(void) static void __init at91cap9_ioremap_registers(void) { + at91sam926x_ioremap_pit(AT91CAP9_BASE_PIT); } static void __init at91cap9_initialize(void) diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index 0e54928..0030d5f 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -327,6 +327,7 @@ static void __init at91sam9260_map_io(void) static void __init at91sam9260_ioremap_registers(void) { + at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT); } static void __init at91sam9260_initialize(void) diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c index dde8318..348d5ae 100644 --- a/arch/arm/mach-at91/at91sam9261.c +++ b/arch/arm/mach-at91/at91sam9261.c @@ -287,6 +287,7 @@ static void __init at91sam9261_map_io(void) static void __init at91sam9261_ioremap_registers(void) { + at91sam926x_ioremap_pit(AT91SAM9261_BASE_PIT); } static void __init at91sam9261_initialize(void) diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c index fc442dd..09ccf73 100644 --- a/arch/arm/mach-at91/at91sam9263.c +++ b/arch/arm/mach-at91/at91sam9263.c @@ -305,6 +305,7 @@ static void __init at91sam9263_map_io(void) static void __init at91sam9263_ioremap_registers(void) { + at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT); } static void __init at91sam9263_initialize(void) diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c index 4ba8549..d89ead7 100644 --- a/arch/arm/mach-at91/at91sam926x_time.c +++ b/arch/arm/mach-at91/at91sam926x_time.c @@ -25,7 +25,17 @@ static u32 pit_cycle; /* write-once */ static u32 pit_cnt; /* access only w/system irq blocked */ +static void __iomem *pit_base_addr __read_mostly; +static inline unsigned int pit_read(unsigned int reg_offset) +{ + return __raw_readl(pit_base_addr + reg_offset); +} + +static inline void pit_write(unsigned int reg_offset, unsigned long value) +{ + __raw_writel(value, pit_base_addr + reg_offset); +} /* * Clocksource: just a monotonic counter of MCK/16 cycles. @@ -39,7 +49,7 @@ static cycle_t read_pit_clk(struct clocksource *cs) raw_local_irq_save(flags); elapsed = pit_cnt; - t = at91_sys_read(AT91_PIT_PIIR); + t = pit_read(AT91_PIT_PIIR); raw_local_irq_restore(flags); elapsed += PIT_PICNT(t) * pit_cycle; @@ -64,8 +74,8 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev) switch (mode) { case CLOCK_EVT_MODE_PERIODIC: /* update clocksource counter */ - pit_cnt += pit_cycle * PIT_PICNT(at91_sys_read(AT91_PIT_PIVR)); - at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN + pit_cnt += pit_cycle * PIT_PICNT(pit_read(AT91_PIT_PIVR)); + pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN | AT91_PIT_PITIEN); break; case CLOCK_EVT_MODE_ONESHOT: @@ -74,7 +84,7 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev) case CLOCK_EVT_MODE_SHUTDOWN: case CLOCK_EVT_MODE_UNUSED: /* disable irq, leaving the clocksource active */ - at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); + pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); break; case CLOCK_EVT_MODE_RESUME: break; @@ -103,11 +113,11 @@ static irqreturn_t at91sam926x_pit_interrupt(int irq, void *dev_id) /* The PIT interrupt may be disabled, and is shared */ if ((pit_clkevt.mode == CLOCK_EVT_MODE_PERIODIC) - && (at91_sys_read(AT91_PIT_SR) & AT91_PIT_PITS)) { + && (pit_read(AT91_PIT_SR) & AT91_PIT_PITS)) { unsigned nr_ticks; /* Get number of ticks performed before irq, and ack it */ - nr_ticks = PIT_PICNT(at91_sys_read(AT91_PIT_PIVR)); + nr_ticks = PIT_PICNT(pit_read(AT91_PIT_PIVR)); do { pit_cnt += pit_cycle; pit_clkevt.event_handler(&pit_clkevt); @@ -129,14 +139,14 @@ static struct irqaction at91sam926x_pit_irq = { static void at91sam926x_pit_reset(void) { /* Disable timer and irqs */ - at91_sys_write(AT91_PIT_MR, 0); + pit_write(AT91_PIT_MR, 0); /* Clear any pending interrupts, wait for PIT to stop counting */ - while (PIT_CPIV(at91_sys_read(AT91_PIT_PIVR)) != 0) + while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0) cpu_relax(); /* Start PIT but don't enable IRQ */ - at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); + pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); } /* @@ -178,7 +188,15 @@ static void __init at91sam926x_pit_init(void) static void at91sam926x_pit_suspend(void) { /* Disable timer */ - at91_sys_write(AT91_PIT_MR, 0); + pit_write(AT91_PIT_MR, 0); +} + +void __init at91sam926x_ioremap_pit(u32 addr) +{ + pit_base_addr = ioremap(addr, 16); + + if (!pit_base_addr) + panic("Impossible to ioremap PIT\n"); } struct sys_timer at91sam926x_timer = { diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c index 56282b2..aa8b441 100644 --- a/arch/arm/mach-at91/at91sam9g45.c +++ b/arch/arm/mach-at91/at91sam9g45.c @@ -340,6 +340,7 @@ static void __init at91sam9g45_map_io(void) static void __init at91sam9g45_ioremap_registers(void) { + at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT); } static void __init at91sam9g45_initialize(void) diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c index 29dae9b..291fc99 100644 --- a/arch/arm/mach-at91/at91sam9rl.c +++ b/arch/arm/mach-at91/at91sam9rl.c @@ -292,6 +292,7 @@ static void __init at91sam9rl_map_io(void) static void __init at91sam9rl_ioremap_registers(void) { + at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT); } static void __init at91sam9rl_initialize(void) diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index 11d7297..8196ecc 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -29,6 +29,7 @@ extern void __init at91_aic_init(unsigned int priority[]); /* Timer */ struct sys_timer; extern struct sys_timer at91rm9200_timer; +extern void at91sam926x_ioremap_pit(u32 addr); extern struct sys_timer at91sam926x_timer; extern struct sys_timer at91x40_timer; diff --git a/arch/arm/mach-at91/include/mach/at91_pit.h b/arch/arm/mach-at91/include/mach/at91_pit.h index 974d0bd..d1f80ad 100644 --- a/arch/arm/mach-at91/include/mach/at91_pit.h +++ b/arch/arm/mach-at91/include/mach/at91_pit.h @@ -16,16 +16,16 @@ #ifndef AT91_PIT_H #define AT91_PIT_H -#define AT91_PIT_MR (AT91_PIT + 0x00) /* Mode Register */ +#define AT91_PIT_MR 0x00 /* Mode Register */ #define AT91_PIT_PITIEN (1 << 25) /* Timer Interrupt Enable */ #define AT91_PIT_PITEN (1 << 24) /* Timer Enabled */ #define AT91_PIT_PIV (0xfffff) /* Periodic Interval Value */ -#define AT91_PIT_SR (AT91_PIT + 0x04) /* Status Register */ +#define AT91_PIT_SR 0x04 /* Status Register */ #define AT91_PIT_PITS (1 << 0) /* Timer Status */ -#define AT91_PIT_PIVR (AT91_PIT + 0x08) /* Periodic Interval Value Register */ -#define AT91_PIT_PIIR (AT91_PIT + 0x0c) /* Periodic Interval Image Register */ +#define AT91_PIT_PIVR 0x08 /* Periodic Interval Value Register */ +#define AT91_PIT_PIIR 0x0c /* Periodic Interval Image Register */ #define AT91_PIT_PICNT (0xfff << 20) /* Interval Counter */ #define AT91_PIT_CPIV (0xfffff) /* Inverval Value */ diff --git a/arch/arm/mach-at91/include/mach/at91cap9.h b/arch/arm/mach-at91/include/mach/at91cap9.h index 1cb42a6..ad8d298 100644 --- a/arch/arm/mach-at91/include/mach/at91cap9.h +++ b/arch/arm/mach-at91/include/mach/at91cap9.h @@ -89,7 +89,6 @@ #define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) #define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS) #define AT91_SHDWC (0xfffffd10 - AT91_BASE_SYS) -#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS) #define AT91_WDT (0xfffffd40 - AT91_BASE_SYS) #define AT91_GPBR (cpu_is_at91cap9_revB() ? \ (0xfffffd50 - AT91_BASE_SYS) : \ @@ -102,6 +101,7 @@ #define AT91CAP9_BASE_PIOC 0xfffff600 #define AT91CAP9_BASE_PIOD 0xfffff800 #define AT91CAP9_BASE_RTT 0xfffffd20 +#define AT91CAP9_BASE_PIT 0xfffffd30 #define AT91_USART0 AT91CAP9_BASE_US0 #define AT91_USART1 AT91CAP9_BASE_US1 diff --git a/arch/arm/mach-at91/include/mach/at91sam9260.h b/arch/arm/mach-at91/include/mach/at91sam9260.h index 6aa7ca9..b8c85dc 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9260.h +++ b/arch/arm/mach-at91/include/mach/at91sam9260.h @@ -89,7 +89,6 @@ #define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) #define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS) #define AT91_SHDWC (0xfffffd10 - AT91_BASE_SYS) -#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS) #define AT91_WDT (0xfffffd40 - AT91_BASE_SYS) #define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS) @@ -98,6 +97,7 @@ #define AT91SAM9260_BASE_PIOB 0xfffff600 #define AT91SAM9260_BASE_PIOC 0xfffff800 #define AT91SAM9260_BASE_RTT 0xfffffd20 +#define AT91SAM9260_BASE_PIT 0xfffffd30 #define AT91_USART0 AT91SAM9260_BASE_US0 #define AT91_USART1 AT91SAM9260_BASE_US1 diff --git a/arch/arm/mach-at91/include/mach/at91sam9261.h b/arch/arm/mach-at91/include/mach/at91sam9261.h index f84b713..0dccaff 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9261.h +++ b/arch/arm/mach-at91/include/mach/at91sam9261.h @@ -73,7 +73,6 @@ #define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) #define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS) #define AT91_SHDWC (0xfffffd10 - AT91_BASE_SYS) -#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS) #define AT91_WDT (0xfffffd40 - AT91_BASE_SYS) #define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS) @@ -81,6 +80,7 @@ #define AT91SAM9261_BASE_PIOB 0xfffff600 #define AT91SAM9261_BASE_PIOC 0xfffff800 #define AT91SAM9261_BASE_RTT 0xfffffd20 +#define AT91SAM9261_BASE_PIT 0xfffffd30 #define AT91_USART0 AT91SAM9261_BASE_US0 #define AT91_USART1 AT91SAM9261_BASE_US1 diff --git a/arch/arm/mach-at91/include/mach/at91sam9263.h b/arch/arm/mach-at91/include/mach/at91sam9263.h index 938965e..735408e 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9263.h +++ b/arch/arm/mach-at91/include/mach/at91sam9263.h @@ -85,7 +85,6 @@ #define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) #define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS) #define AT91_SHDWC (0xfffffd10 - AT91_BASE_SYS) -#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS) #define AT91_WDT (0xfffffd40 - AT91_BASE_SYS) #define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS) @@ -97,6 +96,7 @@ #define AT91SAM9263_BASE_PIOD 0xfffff800 #define AT91SAM9263_BASE_PIOE 0xfffffa00 #define AT91SAM9263_BASE_RTT0 0xfffffd20 +#define AT91SAM9263_BASE_PIT 0xfffffd30 #define AT91SAM9263_BASE_RTT1 0xfffffd50 #define AT91_USART0 AT91SAM9263_BASE_US0 diff --git a/arch/arm/mach-at91/include/mach/at91sam9g45.h b/arch/arm/mach-at91/include/mach/at91sam9g45.h index 00638c6..ba609f3 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9g45.h +++ b/arch/arm/mach-at91/include/mach/at91sam9g45.h @@ -95,7 +95,6 @@ #define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) #define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS) #define AT91_SHDWC (0xfffffd10 - AT91_BASE_SYS) -#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS) #define AT91_WDT (0xfffffd40 - AT91_BASE_SYS) #define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS) #define AT91_RTC (0xfffffdb0 - AT91_BASE_SYS) @@ -108,6 +107,7 @@ #define AT91SAM9G45_BASE_PIOD 0xfffff800 #define AT91SAM9G45_BASE_PIOE 0xfffffa00 #define AT91SAM9G45_BASE_RTT 0xfffffd20 +#define AT91SAM9G45_BASE_PIT 0xfffffd30 #define AT91_USART0 AT91SAM9G45_BASE_US0 #define AT91_USART1 AT91SAM9G45_BASE_US1 diff --git a/arch/arm/mach-at91/include/mach/at91sam9rl.h b/arch/arm/mach-at91/include/mach/at91sam9rl.h index 099cefc..bab09a7 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9rl.h +++ b/arch/arm/mach-at91/include/mach/at91sam9rl.h @@ -78,7 +78,6 @@ #define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) #define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS) #define AT91_SHDWC (0xfffffd10 - AT91_BASE_SYS) -#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS) #define AT91_WDT (0xfffffd40 - AT91_BASE_SYS) #define AT91_SCKCR (0xfffffd50 - AT91_BASE_SYS) #define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS) @@ -91,6 +90,7 @@ #define AT91SAM9RL_BASE_PIOC 0xfffff800 #define AT91SAM9RL_BASE_PIOD 0xfffffa00 #define AT91SAM9RL_BASE_RTT 0xfffffd20 +#define AT91SAM9RL_BASE_PIT 0xfffffd30 #define AT91_USART0 AT91SAM9RL_BASE_US0 #define AT91_USART1 AT91SAM9RL_BASE_US1 |