diff options
Diffstat (limited to 'src/soc/cavium')
| -rw-r--r-- | src/soc/cavium/cn81xx/uart.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/cavium/cn81xx/uart.c b/src/soc/cavium/cn81xx/uart.c index 9fb83871ad..7a9ea3a158 100644 --- a/src/soc/cavium/cn81xx/uart.c +++ b/src/soc/cavium/cn81xx/uart.c @@ -233,6 +233,14 @@ int uart_setup(const size_t bus, int baudrate) write64(&uart->uctl_ctl, ctl.u); /** + * Exit here if the UART is not going to be used in coreboot. + * The previous initialization steps are sufficient to make the Linux + * kernel not panic. + */ + if (!baudrate) + return 0; + + /** * 7. Initialize the integer and fractional baud rate divider registers * UARTIBRD and UARTFBRD as follows: * a. Baud Rate Divisor = UARTCLK/(16xBaud Rate) = BRDI + BRDF |