diff options
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/Kconfig | 8 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/dma-mapping.h | 10 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/mem_init.h | 2 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/uaccess.h | 1 | ||||
| -rw-r--r-- | arch/blackfin/kernel/dma-mapping.c | 23 | ||||
| -rw-r--r-- | arch/blackfin/kernel/process.c | 7 | ||||
| -rw-r--r-- | arch/blackfin/kernel/time-ts.c | 6 | ||||
| -rw-r--r-- | arch/blackfin/kernel/time.c | 6 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/ints-priority.c | 4 |
9 files changed, 30 insertions, 37 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index b6f3ad5441c5..e98f3248c8aa 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -24,7 +24,6 @@ config BLACKFIN select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_TRACE_MCOUNT_TEST select HAVE_IDE - select HAVE_IRQ_WORK select HAVE_KERNEL_GZIP if RAMKERNEL select HAVE_KERNEL_BZIP2 if RAMKERNEL select HAVE_KERNEL_LZMA if RAMKERNEL @@ -38,7 +37,6 @@ config BLACKFIN select HAVE_GENERIC_HARDIRQS select GENERIC_ATOMIC64 select GENERIC_IRQ_PROBE - select IRQ_PER_CPU if SMP select USE_GENERIC_SMP_HELPERS if SMP select HAVE_NMI_WATCHDOG if NMI_WATCHDOG select GENERIC_SMP_IDLE_THREAD @@ -562,8 +560,7 @@ choice accurate - This option is therefore marked experimental. config BFIN_KERNEL_CLOCK_MEMINIT_CALC - bool "Calculate Timings (EXPERIMENTAL)" - depends on EXPERIMENTAL + bool "Calculate Timings" config BFIN_KERNEL_CLOCK_MEMINIT_SPEC bool "Provide accurate Timings based on target SCLK" @@ -1120,7 +1117,7 @@ endchoice comment "Memory Protection Unit" config MPU - bool "Enable the memory protection unit (EXPERIMENTAL)" + bool "Enable the memory protection unit" default n help Use the processor's MPU to protect applications from accessing @@ -1442,7 +1439,6 @@ config BFIN_CPU_FREQ config CPU_VOLTAGE bool "CPU Voltage scaling" - depends on EXPERIMENTAL depends on CPU_FREQ default n help diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h index bbf461076a0a..054d9ec57d9d 100644 --- a/arch/blackfin/include/asm/dma-mapping.h +++ b/arch/blackfin/include/asm/dma-mapping.h @@ -154,4 +154,14 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size, _dma_sync((dma_addr_t)vaddr, size, dir); } +/* drivers/base/dma-mapping.c */ +extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma, + void *cpu_addr, dma_addr_t dma_addr, size_t size); +extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t dma_addr, + size_t size); + +#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s) +#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s) + #endif /* _BLACKFIN_DMA_MAPPING_H */ diff --git a/arch/blackfin/include/asm/mem_init.h b/arch/blackfin/include/asm/mem_init.h index f019e9bcefe9..9b33e7247864 100644 --- a/arch/blackfin/include/asm/mem_init.h +++ b/arch/blackfin/include/asm/mem_init.h @@ -411,7 +411,7 @@ static struct ddr_config ddr_config_table[] __attribute__((section(".data_l1"))) .dmc_ddrcfg = 0x00000422, .dmc_ddrtr0 = 0x20E0A424, .dmc_ddrtr1 = 0x3020079E, - .dmc_ddrtr2 = 0x0032020D, + .dmc_ddrtr2 = 0x0032050D, .dmc_ddrmr = 0x00000842, .dmc_ddrmr1 = 0x4, }, diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h index 461bb542e2e8..57701c3b8a59 100644 --- a/arch/blackfin/include/asm/uaccess.h +++ b/arch/blackfin/include/asm/uaccess.h @@ -191,6 +191,7 @@ copy_to_user(void __user *to, const void *from, unsigned long n) memcpy((void __force *)to, from, n); else return n; + SSYNC(); return 0; } diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c index e7be6532d6a0..df437e52d9df 100644 --- a/arch/blackfin/kernel/dma-mapping.c +++ b/arch/blackfin/kernel/dma-mapping.c @@ -13,6 +13,7 @@ #include <linux/dma-mapping.h> #include <linux/scatterlist.h> #include <linux/export.h> +#include <linux/bitmap.h> static spinlock_t dma_page_lock; static unsigned long *dma_page; @@ -46,24 +47,17 @@ static inline unsigned int get_pages(size_t size) static unsigned long __alloc_dma_pages(unsigned int pages) { unsigned long ret = 0, flags; - int i, count = 0; + unsigned long start; if (dma_initialized == 0) dma_alloc_init(_ramend - DMA_UNCACHED_REGION, _ramend); spin_lock_irqsave(&dma_page_lock, flags); - for (i = 0; i < dma_pages;) { - if (test_bit(i++, dma_page) == 0) { - if (++count == pages) { - while (count--) - __set_bit(--i, dma_page); - - ret = dma_base + (i << PAGE_SHIFT); - break; - } - } else - count = 0; + start = bitmap_find_next_zero_area(dma_page, dma_pages, 0, pages, 0); + if (start < dma_pages) { + ret = dma_base + (start << PAGE_SHIFT); + bitmap_set(dma_page, start, pages); } spin_unlock_irqrestore(&dma_page_lock, flags); return ret; @@ -73,7 +67,6 @@ static void __free_dma_pages(unsigned long addr, unsigned int pages) { unsigned long page = (addr - dma_base) >> PAGE_SHIFT; unsigned long flags; - int i; if ((page + pages) > dma_pages) { printk(KERN_ERR "%s: freeing outside range.\n", __func__); @@ -81,9 +74,7 @@ static void __free_dma_pages(unsigned long addr, unsigned int pages) } spin_lock_irqsave(&dma_page_lock, flags); - for (i = page; i < page + pages; i++) - __clear_bit(i, dma_page); - + bitmap_clear(dma_page, page, pages); spin_unlock_irqrestore(&dma_page_lock, flags); } diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 3e16ad9b0a99..8061426b7df5 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -39,12 +39,6 @@ int nr_l1stack_tasks; void *l1_stack_base; unsigned long l1_stack_len; -/* - * Powermanagement idle function, if any.. - */ -void (*pm_idle)(void) = NULL; -EXPORT_SYMBOL(pm_idle); - void (*pm_power_off)(void) = NULL; EXPORT_SYMBOL(pm_power_off); @@ -81,7 +75,6 @@ void cpu_idle(void) { /* endless idle loop with no priority at all */ while (1) { - void (*idle)(void) = pm_idle; #ifdef CONFIG_HOTPLUG_CPU if (cpu_is_offline(smp_processor_id())) diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c index f608f02f29a3..cb0a4845339e 100644 --- a/arch/blackfin/kernel/time-ts.c +++ b/arch/blackfin/kernel/time-ts.c @@ -329,12 +329,6 @@ void bfin_coretmr_clockevent_init(void) evt->broadcast = smp_timer_broadcast; #endif - -#ifdef CONFIG_SMP - evt->broadcast = smp_timer_broadcast; -#endif - - evt->name = "bfin_core_timer"; evt->rating = 350; evt->irq = -1; diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c index 2310b249675f..3126b920a4a5 100644 --- a/arch/blackfin/kernel/time.c +++ b/arch/blackfin/kernel/time.c @@ -85,7 +85,7 @@ time_sched_init(irqreturn_t(*timer_routine) (int, void *)) /* * Should return useconds since last timer tick */ -u32 arch_gettimeoffset(void) +static u32 blackfin_gettimeoffset(void) { unsigned long offset; unsigned long clocks_per_jiffy; @@ -141,6 +141,10 @@ void read_persistent_clock(struct timespec *ts) void __init time_init(void) { +#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET + arch_gettimeoffset = blackfin_gettimeoffset; +#endif + #ifdef CONFIG_RTC_DRV_BFIN /* [#2663] hack to filter junk RTC values that would cause * userspace to have to deal with time values greater than diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index 83ff311fd6ea..6c0c6816a51a 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -1195,6 +1195,7 @@ static struct syscore_ops sec_pm_syscore_ops = { .suspend = sec_suspend, .resume = sec_resume, }; + #endif #else # define bfin_gpio_set_wake NULL @@ -1596,7 +1597,10 @@ int __init init_arch_irq(void) bfin_write_SEC_SCI(1, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN); init_software_driven_irq(); + +#ifdef CONFIG_PM register_syscore_ops(&sec_pm_syscore_ops); +#endif return 0; } |