From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jun Nie Date: Fri, 22 Mar 2019 15:20:04 +0800 Subject: [U-Boot] [PATCH 2/2] imx: serial_mxc: skip uart initilization In-Reply-To: <1553239204-9732-1-git-send-email-jun.nie@linaro.org> References: <1553239204-9732-1-git-send-email-jun.nie@linaro.org> Message-ID: <1553239204-9732-2-git-send-email-jun.nie@linaro.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Skip uart initilization if CONFIG_UART_SKIP_INIT is defined. That's means earlier firmware already initialized the uart. Signed-off-by: Jun Nie --- drivers/serial/serial_mxc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c index 476df25..01c97a4 100644 --- a/drivers/serial/serial_mxc.c +++ b/drivers/serial/serial_mxc.c @@ -231,9 +231,11 @@ static int mxc_serial_tstc(void) */ static int mxc_serial_init(void) { +#ifndef CONFIG_UART_SKIP_INIT _mxc_serial_init(mxc_base, false); serial_setbrg(); +#endif return 0; } @@ -276,7 +278,9 @@ static int mxc_serial_probe(struct udevice *dev) { struct mxc_serial_platdata *plat = dev->platdata; +#ifndef CONFIG_UART_SKIP_INIT _mxc_serial_init(plat->reg, plat->use_dte); +#endif return 0; } -- 2.7.4