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Merge branch 'master' of git://git.denx.de/u-boot-sparc

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This commit is contained in:
Tom Rini 2014-05-09 11:09:59 -04:00
commit 146b468eb0
2 changed files with 28 additions and 16 deletions
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22
arch/sparc/cpu/leon2/cpu_init.c
View file

@ -13,6 +13,9 @@
#include <config.h>
#define TIMER_BASE_CLK 1000000
#define US_PER_TICK (1000000 / CONFIG_SYS_HZ)
DECLARE_GLOBAL_DATA_PTR;
/* reset CPU (jump to 0, without reset) */
@ -90,7 +93,7 @@ void cpu_wait_ticks(unsigned long ticks)
while (get_timer(start) < ticks) ;
}
/* initiate and setup timer0 interrupt to 1MHz
/* initiate and setup timer0 interrupt to configured HZ. Base clock is 1MHz.
* Return irq number for timer int or a negative number for
* dealing with self
*/
@ -98,28 +101,31 @@ int timer_interrupt_init_cpu(void)
{
LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS;
/* 1ms ticks */
/* SYS_HZ ticks per second */
leon2->Timer_Counter_1 = 0;
leon2->Timer_Reload_1 = 999; /* (((1000000 / 100) - 1)) */
leon2->Timer_Reload_1 = (TIMER_BASE_CLK / CONFIG_SYS_HZ) - 1;
leon2->Timer_Control_1 =
(LEON2_TIMER_CTRL_EN | LEON2_TIMER_CTRL_RS | LEON2_TIMER_CTRL_LD);
return LEON2_TIMER1_IRQNO;
}
ulong get_tbclk(void)
{
return TIMER_BASE_CLK;
}
/*
* This function is intended for SHORT delays only.
*/
unsigned long cpu_usec2ticks(unsigned long usec)
{
/* timer set to 1kHz ==> 1 clk tick = 1 msec */
if (usec < 1000)
if (usec < US_PER_TICK)
return 1;
return (usec / 1000);
return usec / US_PER_TICK;
}
unsigned long cpu_ticks2usec(unsigned long ticks)
{
/* 1tick = 1usec */
return ticks * 1000;
return ticks * US_PER_TICK;
}

22
arch/sparc/cpu/leon3/cpu_init.c
View file

@ -14,6 +14,9 @@
#include <config.h>
#define TIMER_BASE_CLK 1000000
#define US_PER_TICK (1000000 / CONFIG_SYS_HZ)
DECLARE_GLOBAL_DATA_PTR;
/* reset CPU (jump to 0, without reset) */
@ -203,15 +206,15 @@ void cpu_wait_ticks(unsigned long ticks)
while (get_timer(start) < ticks) ;
}
/* initiate and setup timer0 interrupt to 1MHz
/* initiate and setup timer0 interrupt to configured HZ. Base clock is 1MHz.
* Return irq number for timer int or a negative number for
* dealing with self
*/
int timer_interrupt_init_cpu(void)
{
/* 1ms ticks */
/* SYS_HZ ticks per second */
gptimer->e[0].val = 0;
gptimer->e[0].rld = 999; /* (((1000000 / 100) - 1)) */
gptimer->e[0].rld = (TIMER_BASE_CLK / CONFIG_SYS_HZ) - 1;
gptimer->e[0].ctrl =
(LEON3_GPTIMER_EN |
LEON3_GPTIMER_RL | LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN);
@ -219,19 +222,22 @@ int timer_interrupt_init_cpu(void)
return gptimer_irq;
}
ulong get_tbclk(void)
{
return TIMER_BASE_CLK;
}
/*
* This function is intended for SHORT delays only.
*/
unsigned long cpu_usec2ticks(unsigned long usec)
{
/* timer set to 1kHz ==> 1 clk tick = 1 msec */
if (usec < 1000)
if (usec < US_PER_TICK)
return 1;
return (usec / 1000);
return usec / US_PER_TICK;
}
unsigned long cpu_ticks2usec(unsigned long ticks)
{
/* 1tick = 1usec */
return ticks * 1000;
return ticks * US_PER_TICK;
}