Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM: kernel: fix system_time() when being called too early.

Browse Source
This commit is contained in:
Ithamar R. Adema 2013-09-17 15:56:32 +02:00
parent 09d213f3b3
commit 34ed0fe74a
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/system/kernel/arch/arm/arch_timer.cpp
View File

@ -29,7 +29,7 @@
#define PXA_TIMERS_PHYS_BASE 0x40A00000
#define PXA_TIMERS_SIZE 0x000000C0
#define PXA_TIMERS_SIZE B_PAGE_SIZE
#define PXA_TIMERS_INTERRUPT 7 /* OST_4_11 */
#define PXA_OSSR 0x05
@ -48,7 +48,7 @@
#define US2S(bt) ((bt) / 1000000ULL)
#define US2MS(bt) ((bt) / 1000ULL)
static area_id sPxaTimersArea = B_ERROR;
static area_id sPxaTimersArea = -1;
static uint32 *sPxaTimersBase = NULL;
static bigtime_t sSystemTime = 0;
@ -107,6 +107,7 @@ arch_timer_clear_hardware_timer()
int
arch_init_timer(kernel_args *args)
{
TRACE(("%s\n", __func__));
sPxaTimersArea = map_physical_memory("pxa_timers", PXA_TIMERS_PHYS_BASE,
PXA_TIMERS_SIZE, 0, B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA, (void**)&sPxaTimersBase);
@ -126,6 +127,9 @@ arch_init_timer(kernel_args *args)
bigtime_t
system_time(void)
{
if (sPxaTimersArea < 0)
return 0;
return (sPxaTimersBase != NULL) ?
sSystemTime + sPxaTimersBase[PXA_OSCR5] :
0ULL;