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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin

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Pull small blackfin update from Bob Liu.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin:
  blackfin: time-ts: Remove duplicate assignment
  blackfin: pm: fix build error
  blackfin: sync data in blackfin write buffer
  blackfin: use bitmap library functions
  blackfin: mem_init: update dmc config register
This commit is contained in:
Linus Torvalds 2013-02-22 21:20:09 -08:00
commit df24eef3e7
5 changed files with 13 additions and 23 deletions
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2
arch/blackfin/include/asm/mem_init.h
View File

@ -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,
},

1
arch/blackfin/include/asm/uaccess.h
View File

@ -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;
}

23
arch/blackfin/kernel/dma-mapping.c
View File

@ -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);
}

6
arch/blackfin/kernel/time-ts.c
View File

@ -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;

4
arch/blackfin/mach-common/ints-priority.c
View File

@ -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;
}