From: Sonic Zhang sonic.zhang@analog.com

- Add comments for watchdog event initialization. - Make sure the writting operation to MMRs are finished.

Signed-off-by: Sonic Zhang sonic.zhang@analog.com --- arch/blackfin/cpu/initcode.c | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c index 5fc06e1..ffaf101 100644 --- a/arch/blackfin/cpu/initcode.c +++ b/arch/blackfin/cpu/initcode.c @@ -458,15 +458,23 @@ program_early_devices(ADI_BOOT_DATA *bs, uint *sdivB, uint *divB, uint *vcoB) if (CONFIG_BFIN_BOOT_MODE != BFIN_BOOT_BYPASS) { serial_putc('e'); #ifdef __ADSPBF60x__ + /* Reset system event controller */ bfin_write_SEC_GCTL(0x2); + bfin_write_SEC_CCTL(0x2); SSYNC(); + + /* Enable fault event input and system reset action in fault + * controller. Route watchdog timeout event to fault interface. + */ bfin_write_SEC_FCTL(0xc1); + /* Enable watchdog interrupt source */ bfin_write_SEC_SCTL(2, bfin_read_SEC_SCTL(2) | 0x6); - - bfin_write_SEC_CCTL(0x2); SSYNC(); + + /* Enable system event controller */ bfin_write_SEC_GCTL(0x1); bfin_write_SEC_CCTL(0x1); + SSYNC(); #endif bfin_write_WDOG_CTL(WDDIS); SSYNC();