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Cleaned the timer driver to make it generic.

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This commit is contained in:
Amit Mahajan
2009-10-24 21:02:47 +05:30
parent 24cbc8d441
commit 8a586860b3
7 changed files with 111 additions and 57 deletions
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42
include/l4/drivers/timer/sp804/sp804_timer.h
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@@ -9,19 +9,35 @@
#include INC_PLAT(platform.h)
#define SP804_TIMER01_BASE PLATFORM_TIMER_BASE
/* Run mode of timers */
#define SP804_TIMER_RUNMODE_FREERUN 0
#define SP804_TIMER_RUNMODE_PERIODIC 1
#define SP804_TIMER1LOAD (SP804_TIMER01_BASE + 0x0)
#define SP804_TIMER1VALUE (SP804_TIMER01_BASE + 0x4)
#define SP804_TIMER1CONTROL (SP804_TIMER01_BASE + 0x8)
#define SP804_TIMER1INTCLR (SP804_TIMER01_BASE + 0xC)
#define SP804_TIMER1RIS (SP804_TIMER01_BASE + 0x10)
#define SP804_TIMER1MIS (SP804_TIMER01_BASE + 0x14)
#define SP804_TIMER1BGLOAD (SP804_TIMER01_BASE + 0x18)
#define SP804_TIMER2OFFSET 0x20
/* Wrap mode of timers */
#define SP804_TIMER_WRAPMODE_WRAPPING 0
#define SP804_TIMER_WRAPMODE_ONESHOT 1
/* Operational width of timer */
#define SP804_TIMER_WIDTH16BIT 0
#define SP804_TIMER_WIDTH32BIT 1
/* Enable/disable irq on timer */
#define SP804_TIMER_IRQDISABLE 0
#define SP804_TIMER_IRQENABLE 1
/* Register offsets */
#define SP804_TIMERLOAD 0x0
#define SP804_TIMERVALUE 0x4
#define SP804_TIMERCONTROL 0x8
#define SP804_TIMERINTCLR 0xC
#define SP804_TIMERRIS 0x10
#define SP804_TIMERMIS 0x14
#define SP804_TIMERBGLOAD 0x18
void sp804_init(unsigned int timer_base, int runmode, int wrapmode, \
int width, int irq_enable);
void sp804_irq_handler(unsigned int timer_base);
void sp804_enable(unsigned int timer_base, int enable);
void sp804_set_irq(unsigned int timer_base, int enable);
void sp804_init(void);
void sp804_irq_handler(void);
void sp804_enable(int timer, int enable);
void sp804_set_irq(int timer, int enable);
#endif /* __SP804_TIMER_H__ */

1
include/l4/platform/pb926/offsets.h
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@@ -56,5 +56,6 @@
#define PB926_SYSCTRL_VBASE (IO_AREA0_VADDR + PB926_SYSCTRL_VOFFSET)
#define PB926_VIC_VBASE (IO_AREA0_VADDR + PB926_VIC_VOFFSET)
#define PB926_SIC_VBASE (IO_AREA0_VADDR + PB926_SIC_VOFFSET)
#endif /* __PLATFORM_PB926_OFFSETS_H__ */

13
include/l4/platform/pb926/platform.h
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@@ -11,11 +11,22 @@
#include INC_GLUE(memlayout.h)
#define PLATFORM_CONSOLE_BASE PB926_UART0_VBASE
#define PLATFORM_TIMER_BASE PB926_TIMER01_VBASE
/* SP804 timer has TIMER1 at TIMER0 + 0x20 address */
#define PLATFORM_TIMER0_BASE PB926_TIMER01_VBASE
#define PLATFORM_SP810_BASE PB926_SYSCTRL_VBASE
#define PLATFORM_IRQCTRL_BASE PB926_VIC_VBASE
#define PLATFORM_SIRQCTRL_BASE PB926_SIC_VBASE
/* Total number of timers present in this platform */
#define TOTAL_TIMERS 4
#define PLATFORM_TIMER0 0
#define PLATFORM_TIMER1 1
#define PLATFORM_TIMER2 2
#define PLATFORM_TIMER3 3
void platform_irq_enable(int irq);
void platform_irq_disable(int irq);
void timer_start(void);