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Added tm27 stuff.

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This commit is contained in:
Joel Sherrill
2000-01-03 14:14:37 +00:00
parent db94167039
commit e07b6868b3
1 changed files with 48 additions and 0 deletions
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c/src/lib/libbsp/powerpc/shared/include/bsp.h
+48
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@@ -55,6 +55,54 @@ extern void rtemsReboot(void);
extern int printk(const char *, ...) __attribute__((format(printf, 1, 2)));
extern int BSP_disconnect_clock_handler (void);
extern int BSP_connect_clock_handler (void);
/*
* TM27 stuff
*/
#if defined(MCP750) && defined(RTEMS_TM27)
#define MUST_WAIT_FOR_INTERRUPT 1
void nullFunc() {}
static rtems_irq_connect_data clockIrqData = {BSP_DECREMENTER,
0,
(rtems_irq_enable)nullFunc,
(rtems_irq_disable)nullFunc,
(rtems_irq_is_enabled) nullFunc};
void Install_tm27_vector(void (*_handler)())
{
clockIrqData.hdl = _handler;
if (!BSP_install_rtems_irq_handler (&clockIrqData)) {
printk("Error installing clock interrupt handler!\n");
rtems_fatal_error_occurred(1);
}
}
#define Cause_tm27_intr() \
do { \
unsigned32 _clicks = 8; \
asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
} while (0)
#define Clear_tm27_intr() \
do { \
unsigned32 _clicks = 0xffffffff; \
asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
} while (0)
#define Lower_tm27_intr() \
do { \
unsigned32 _msr = 0; \
_ISR_Set_level( 0 ); \
asm volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
_msr |= 0x8002; \
asm volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
} while (0)
#endif
#endif
#endif