diff options
Diffstat (limited to 'board/keyborg/board.c')
| -rw-r--r-- | board/keyborg/board.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/board/keyborg/board.c b/board/keyborg/board.c index 6db3d5cd66..e5491a90f4 100644 --- a/board/keyborg/board.c +++ b/board/keyborg/board.c @@ -5,6 +5,7 @@ /* Keyborg board-specific configuration */ #include "common.h" +#include "cpu.h" #include "debug.h" #include "master_slave.h" #include "registers.h" @@ -130,6 +131,27 @@ static const char *get_version(void) return version_data.version; } +static void low_power(void) +{ + touch_scan_enable_interrupt(); + master_slave_enable_interrupt(); + + CPU_SCB_SYSCTRL |= 0x4; + asm volatile("wfi"); + CPU_SCB_SYSCTRL &= ~0x4; + + hardware_clock_init(); + + touch_scan_disable_interrupt(); + master_slave_disable_interrupt(); + master_slave_wake_other(); + + /* Wait for the other chip to wake */ + udelay(2 * MSEC); + + master_slave_sync(5); +} + int main(void) { int i = 0; @@ -151,6 +173,10 @@ int main(void) master_slave_sync(100); + debug_printf("Touch to start..."); + low_power(); + debug_printf("\n"); + while (1) { i++; task_wait_event(SECOND); |