diff options
Diffstat (limited to 'c/src/lib/libbsp/sparc/erc32/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/sparc/erc32/startup/bspstart.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c b/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c index cd3df53b29..e7c0d6630b 100644 --- a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c +++ b/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c @@ -45,6 +45,12 @@ rtems_cpu_table Cpu_table; extern rtems_unsigned32 rdb_start; /* + * Mirror of the Timer Control Register + */ + +unsigned32 _ERC32_MEC_Timer_Control_Mirror; + +/* * Amount to increment itimer by each pass * It is a variable instead of a #define to allow the 'looptest' * script to bump it without recompiling rtems @@ -165,6 +171,21 @@ void bsp_pretasking_hook(void) } /* + * ERC32_Idle_thread_body + * + * ERC32 specific idle task that enters low power mode. + */ + +void ERC32_Idle_thread_body( void ) +{ + while (1) { + ERC32_MEC.Power_Down = 0; /* value is irrelevant */ + } +} + + + +/* * bsp_start * * This routine does the bulk of the system initialization. @@ -191,6 +212,15 @@ void bsp_start( void ) ERC32_MEC.Wait_State_Configuration = 0; } + + /* + * Initialize the mirror of the Timer Control register. + */ + + _ERC32_MEC_Timer_Control_Mirror = 0; + ERC32_MEC.Timer_Control = 0; + + ERC32_MEC.Control |= ERC32_CONFIGURATION_POWER_DOWN_ALLOWED; /* * Set up our hooks @@ -209,6 +239,12 @@ void bsp_start( void ) Cpu_table.do_zero_of_workspace = TRUE; /* + * ERC32 specific idle task. + */ + + Cpu_table.idle_task = ERC32_Idle_thread_body; + + /* * This should be enough interrupt stack. */ |