diff options
author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-01-03 14:14:37 +0000 |
---|---|---|
committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-01-03 14:14:37 +0000 |
commit | e07b6868b371721a86a71a337194308d23d71da0 (patch) | |
tree | 2e9554563504e504d518d95fc54715cef7458026 /c/src/lib/libbsp/powerpc | |
parent | Added define to trip items that are private to tm27 in bsp.h. (diff) | |
download | rtems-e07b6868b371721a86a71a337194308d23d71da0.tar.bz2 |
Added tm27 stuff.
Diffstat (limited to 'c/src/lib/libbsp/powerpc')
-rw-r--r-- | c/src/lib/libbsp/powerpc/shared/include/bsp.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/include/bsp.h b/c/src/lib/libbsp/powerpc/shared/include/bsp.h index a2be655e1e..a1295dec71 100644 --- a/c/src/lib/libbsp/powerpc/shared/include/bsp.h +++ b/c/src/lib/libbsp/powerpc/shared/include/bsp.h @@ -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 |