From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx> Disable interrupts before requesting them in order to fix a kernel oops after lauching a kernel via kexec. Tested on a imx6sl-evk board. Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx> --- drivers/tty/serial/imx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 2c90dc3..8d190f1 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1957,6 +1957,9 @@ static int serial_imx_probe(struct platform_device *pdev) sport->port.uartclk = clk_get_rate(sport->clk_per); + /* Disable interrupts before requesting them */ + writel(0, sport->port.membase + UCR1); + /* * Allocate the IRQ(s) i.MX1 has three interrupts whereas later * chips only have one interrupt. -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
