diff options
| -rw-r--r-- | c/src/lib/libbsp/arm/beagle/clock.c | 9 | ||||
| -rw-r--r-- | c/src/lib/libcpu/arm/shared/include/am335x.h | 6 |
2 files changed, 15 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/beagle/clock.c b/c/src/lib/libbsp/arm/beagle/clock.c index 13c0607b8e..b2582d11cb 100644 --- a/c/src/lib/libbsp/arm/beagle/clock.c +++ b/c/src/lib/libbsp/arm/beagle/clock.c @@ -251,6 +251,15 @@ beagle_clock_initialize(void) OMAP3_TCLR_OVF_TRG | OMAP3_TCLR_AR | OMAP3_TCLR_ST); /* also initilize the free runnning timer */ omap3_frclock_init(); + +#if IS_AM335X + /* Disable AM335X watchdog */ + mmio_write(AM335X_WDT_BASE+AM335X_WDT_WSPR, 0xAAAA); + while(mmio_read(AM335X_WDT_BASE+AM335X_WDT_WWPS) != 0) ; + mmio_write(AM335X_WDT_BASE+AM335X_WDT_WSPR, 0x5555); + while(mmio_read(AM335X_WDT_BASE+AM335X_WDT_WWPS) != 0) ; +#endif + } static void beagle_clock_at_tick(void) diff --git a/c/src/lib/libcpu/arm/shared/include/am335x.h b/c/src/lib/libcpu/arm/shared/include/am335x.h index 4b5ea73379..265cc36784 100644 --- a/c/src/lib/libcpu/arm/shared/include/am335x.h +++ b/c/src/lib/libcpu/arm/shared/include/am335x.h @@ -274,3 +274,9 @@ /* Control posted mode and functional SW reset */ #define AM335X_TIMER_TCAR2 0x058 /* Second captured value of counter register */ +#define AM335X_WDT_BASE 0x44E35000 + /* Watchdog timer */ +#define AM335X_WDT_WWPS 0x34 + /* Command posted status */ +#define AM335X_WDT_WSPR 0x48 + /* Activate/deactivate sequence */ |