diff options
author | Dave Jones <davej@redhat.com> | 2006-12-12 17:41:41 -0500 |
---|---|---|
committer | Dave Jones <davej@redhat.com> | 2006-12-12 17:41:41 -0500 |
commit | c4366889dda8110247be59ca41fddb82951a8c26 (patch) | |
tree | 705c1a996bed8fd48ce94ff33ec9fd00f9b94875 /arch/arm/mach-pxa | |
parent | db2fb9db5735cc532fd4fc55e94b9a3c3750378e (diff) | |
parent | e1036502e5263851259d147771226161e5ccc85a (diff) |
Merge ../linus
Conflicts:
drivers/cpufreq/cpufreq.c
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r-- | arch/arm/mach-pxa/Kconfig | 8 | ||||
-rw-r--r-- | arch/arm/mach-pxa/akita-ioexp.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-pxa/generic.c | 60 | ||||
-rw-r--r-- | arch/arm/mach-pxa/irq.c | 10 | ||||
-rw-r--r-- | arch/arm/mach-pxa/lpd270.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-pxa/lubbock.c | 6 | ||||
-rw-r--r-- | arch/arm/mach-pxa/mainstone.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-pxa/pm.c | 3 | ||||
-rw-r--r-- | arch/arm/mach-pxa/time.c | 7 |
9 files changed, 81 insertions, 27 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 03d07cae26c..9e3d0bdcba0 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -13,12 +13,10 @@ config ARCH_LUBBOCK config MACH_LOGICPD_PXA270 bool "LogicPD PXA270 Card Engine Development Platform" select PXA27x - select IWMMXT config MACH_MAINSTONE bool "Intel HCDDBBVA0 Development Platform" select PXA27x - select IWMMXT config ARCH_PXA_IDP bool "Accelent Xscale IDP" @@ -53,7 +51,6 @@ config PXA_SHARPSL_25x config PXA_SHARPSL_27x bool "Sharp PXA270 models (SL-Cxx00)" select PXA27x - select IWMMXT endchoice @@ -129,11 +126,6 @@ config PXA27x help Select code specific to PXA27x variants -config IWMMXT - bool - help - Enable support for iWMMXt - config PXA_SHARP_C7xx bool select PXA_SSP diff --git a/arch/arm/mach-pxa/akita-ioexp.c b/arch/arm/mach-pxa/akita-ioexp.c index 1b398742ab5..12d2fe0ceff 100644 --- a/arch/arm/mach-pxa/akita-ioexp.c +++ b/arch/arm/mach-pxa/akita-ioexp.c @@ -36,11 +36,11 @@ I2C_CLIENT_INSMOD; static int max7310_write(struct i2c_client *client, int address, int data); static struct i2c_client max7310_template; -static void akita_ioexp_work(void *private_); +static void akita_ioexp_work(struct work_struct *private_); static struct device *akita_ioexp_device; static unsigned char ioexp_output_value = AKITA_IOEXP_IO_OUT; -DECLARE_WORK(akita_ioexp, akita_ioexp_work, NULL); +DECLARE_WORK(akita_ioexp, akita_ioexp_work); /* @@ -158,7 +158,7 @@ void akita_reset_ioexp(struct device *dev, unsigned char bit) EXPORT_SYMBOL(akita_set_ioexp); EXPORT_SYMBOL(akita_reset_ioexp); -static void akita_ioexp_work(void *private_) +static void akita_ioexp_work(struct work_struct *private_) { if (akita_ioexp_device) max7310_set_ouputs(akita_ioexp_device, ioexp_output_value); diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 45fb2c3bcf8..6ae605857ca 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -25,6 +25,10 @@ #include <linux/pm.h> #include <linux/string.h> +#include <linux/sched.h> +#include <asm/cnt32_to_63.h> +#include <asm/div64.h> + #include <asm/hardware.h> #include <asm/irq.h> #include <asm/system.h> @@ -41,6 +45,62 @@ #include "generic.h" /* + * This is the PXA2xx sched_clock implementation. This has a resolution + * of at least 308ns and a maximum value that depends on the value of + * CLOCK_TICK_RATE. + * + * The return value is guaranteed to be monotonic in that range as + * long as there is always less than 582 seconds between successive + * calls to this function. + */ +unsigned long long sched_clock(void) +{ + unsigned long long v = cnt32_to_63(OSCR); + /* Note: top bit ov v needs cleared unless multiplier is even. */ + +#if CLOCK_TICK_RATE == 3686400 + /* 1E9 / 3686400 => 78125 / 288, max value = 32025597s (370 days). */ + /* The <<1 is used to get rid of tick.hi top bit */ + v *= 78125<<1; + do_div(v, 288<<1); +#elif CLOCK_TICK_RATE == 3250000 + /* 1E9 / 3250000 => 4000 / 13, max value = 709490156s (8211 days) */ + v *= 4000; + do_div(v, 13); +#elif CLOCK_TICK_RATE == 3249600 + /* 1E9 / 3249600 => 625000 / 2031, max value = 4541295s (52 days) */ + v *= 625000; + do_div(v, 2031); +#else +#warning "consider fixing sched_clock for your value of CLOCK_TICK_RATE" + /* + * 96-bit math to perform tick * NSEC_PER_SEC / CLOCK_TICK_RATE for + * any value of CLOCK_TICK_RATE. Max value is in the 80 thousand + * years range which is nice, but with higher computation cost. + */ + { + union { + unsigned long long val; + struct { unsigned long lo, hi; }; + } x; + unsigned long long y; + + x.val = v; + x.hi &= 0x7fffffff; + y = (unsigned long long)x.lo * NSEC_PER_SEC; + x.lo = y; + y = (y >> 32) + (unsigned long long)x.hi * NSEC_PER_SEC; + x.hi = do_div(y, CLOCK_TICK_RATE); + do_div(x.val, CLOCK_TICK_RATE); + x.hi += y; + v = x.val; + } +#endif + + return v; +} + +/* * Handy function to set GPIO alternate functions */ diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c index ab1a16025d5..f815678a9d6 100644 --- a/arch/arm/mach-pxa/irq.c +++ b/arch/arm/mach-pxa/irq.c @@ -143,7 +143,7 @@ static struct irq_chip pxa_low_gpio_chip = { * Demux handler for GPIO>=2 edge detect interrupts */ -static void pxa_gpio_demux_handler(unsigned int irq, struct irqdesc *desc) +static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc) { unsigned int mask; int loop; @@ -286,27 +286,27 @@ void __init pxa_init_irq(void) for (irq = PXA_IRQ(PXA_IRQ_SKIP); irq <= PXA_IRQ(31); irq++) { set_irq_chip(irq, &pxa_internal_chip_low); - set_irq_handler(irq, do_level_IRQ); + set_irq_handler(irq, handle_level_irq); set_irq_flags(irq, IRQF_VALID); } #if PXA_INTERNAL_IRQS > 32 for (irq = PXA_IRQ(32); irq < PXA_IRQ(PXA_INTERNAL_IRQS); irq++) { set_irq_chip(irq, &pxa_internal_chip_high); - set_irq_handler(irq, do_level_IRQ); + set_irq_handler(irq, handle_level_irq); set_irq_flags(irq, IRQF_VALID); } #endif for (irq = IRQ_GPIO0; irq <= IRQ_GPIO1; irq++) { set_irq_chip(irq, &pxa_low_gpio_chip); - set_irq_handler(irq, do_edge_IRQ); + set_irq_handler(irq, handle_edge_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } for (irq = IRQ_GPIO(2); irq <= IRQ_GPIO(PXA_LAST_GPIO); irq++) { set_irq_chip(irq, &pxa_muxed_gpio_chip); - set_irq_handler(irq, do_edge_IRQ); + set_irq_handler(irq, handle_edge_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c index 5749f6b72e1..8e27a64fa9f 100644 --- a/arch/arm/mach-pxa/lpd270.c +++ b/arch/arm/mach-pxa/lpd270.c @@ -75,7 +75,7 @@ static struct irq_chip lpd270_irq_chip = { .unmask = lpd270_unmask_irq, }; -static void lpd270_irq_handler(unsigned int irq, struct irqdesc *desc) +static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc) { unsigned long pending; @@ -105,7 +105,7 @@ static void __init lpd270_init_irq(void) /* setup extra LogicPD PXA270 irqs */ for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) { set_irq_chip(irq, &lpd270_irq_chip); - set_irq_handler(irq, do_level_IRQ); + set_irq_handler(irq, handle_level_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } set_irq_chained_handler(IRQ_GPIO(0), lpd270_irq_handler); diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index ee80d62119d..055de7f4f00 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -85,7 +85,7 @@ static struct irq_chip lubbock_irq_chip = { .unmask = lubbock_unmask_irq, }; -static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc) +static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc) { unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; do { @@ -108,7 +108,7 @@ static void __init lubbock_init_irq(void) /* setup extra lubbock irqs */ for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) { set_irq_chip(irq, &lubbock_irq_chip); - set_irq_handler(irq, do_level_IRQ); + set_irq_handler(irq, handle_level_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } @@ -397,7 +397,7 @@ static void lubbock_mmc_poll(unsigned long data) if (LUB_IRQ_SET_CLR & (1 << 0)) mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE); else { - (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data, NULL); + (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data); enable_irq(LUBBOCK_SD_IRQ); } } diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 49c34d94a9f..56d94d88d5c 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -71,7 +71,7 @@ static struct irq_chip mainstone_irq_chip = { .unmask = mainstone_unmask_irq, }; -static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc) +static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc) { unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled; do { @@ -94,7 +94,7 @@ static void __init mainstone_init_irq(void) /* setup extra Mainstone irqs */ for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) { set_irq_chip(irq, &mainstone_irq_chip); - set_irq_handler(irq, do_level_IRQ); + set_irq_handler(irq, handle_level_irq); if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14)) set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN); else diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c index 2112c414f0e..b4d8276d605 100644 --- a/arch/arm/mach-pxa/pm.c +++ b/arch/arm/mach-pxa/pm.c @@ -83,7 +83,8 @@ int pxa_pm_enter(suspend_state_t state) #ifdef CONFIG_IWMMXT /* force any iWMMXt context to ram **/ - iwmmxt_task_disable(NULL); + if (elf_hwcap & HWCAP_IWMMXT) + iwmmxt_task_disable(NULL); #endif /* preserve current time */ diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c index 3ac268fa419..b9146686102 100644 --- a/arch/arm/mach-pxa/time.c +++ b/arch/arm/mach-pxa/time.c @@ -124,6 +124,7 @@ static struct irqaction pxa_timer_irq = { static void __init pxa_timer_init(void) { struct timespec tv; + unsigned long flags; set_rtc = pxa_set_rtc; @@ -132,12 +133,12 @@ static void __init pxa_timer_init(void) do_settimeofday(&tv); OIER = 0; /* disable any timer interrupts */ - OSCR = LATCH*2; /* push OSCR out of the way */ - OSMR0 = LATCH; /* set initial match */ OSSR = 0xf; /* clear status on all timers */ setup_irq(IRQ_OST0, &pxa_timer_irq); + local_irq_save(flags); OIER = OIER_E0; /* enable match on timer 0 to cause interrupts */ - OSCR = 0; /* initialize free-running timer */ + OSMR0 = OSCR + LATCH; /* set initial match */ + local_irq_restore(flags); } #ifdef CONFIG_NO_IDLE_HZ |