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[PATCH] Add support for design without interrupt controller 

Polling timer
This commit is contained in:
Michal Simek 2007-09-24 00:21:19 +02:00
parent 0731933ec8
commit 1c1100d2fc
2 changed files with 15 additions and 0 deletions
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7
cpu/microblaze/timer.c
View File

@ -33,10 +33,17 @@ void reset_timer (void)
timestamp = 0; timestamp = 0;
} }
#ifdef CFG_TIMER_0
ulong get_timer (ulong base) ulong get_timer (ulong base)
{ {
return (timestamp - base); return (timestamp - base);
} }
#else
ulong get_timer (ulong base)
{
return (timestamp++ - base);
}
#endif
void set_timer (ulong t) void set_timer (ulong t)
{ {

8
lib_microblaze/time.c
View File

@ -26,9 +26,17 @@
#include <common.h> #include <common.h>
#ifdef CFG_TIMER_0
void udelay (unsigned long usec) void udelay (unsigned long usec)
{ {
int i; int i;
i = get_timer (0); i = get_timer (0);
while ((get_timer (0) - i) < (usec / 1000)) ; while ((get_timer (0) - i) < (usec / 1000)) ;
} }
#else
void udelay (unsigned long usec)
{
unsigned int i;
for (i = 0; i < (usec * CONFIG_XILINX_CLOCK_FREQ / 10000000); i++);
}
#endif