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tty: serial: xuartps: Setup early console when uartclk is also passed

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Baudrate calculation depends on requested baudrate and uart clock.
This patch is checking that uartclk is also passed.

The same logic is used 8250_early.c/init_port function.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michal Simek 2018-04-23 10:55:21 +02:00 • committed by Greg Kroah-Hartman
parent 903f9db10f
commit 66dd99c203
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/xilinx_uartps.c
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@ -1181,7 +1181,7 @@ static int __init cdns_early_console_setup(struct earlycon_device *device,
/* only set baud if specified on command line - otherwise
* assume it has been initialized by a boot loader.
*/
if (device->baud) {
if (port->uartclk && device->baud) {
u32 cd = 0, bdiv = 0;
u32 mr;
int div8;