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serial: 8250: pxa: add devicetree earlyconsole

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Transfer the device-tree pxa uart handling from 8250_of to the new
8250_pxa.  As a corollary, add the early console definition into
8250_pxa.

This enables to have the same uart node for the early console and the
normal uart.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robert Jarzmik 2016-10-22 00:06:21 +02:00 committed by Greg Kroah-Hartman
parent ba061c1a90
commit fea6dd1486
2 changed files with 13 additions and 2 deletions
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2
drivers/tty/serial/8250/8250_of.c
View file

@ -332,8 +332,6 @@ static const struct of_device_id of_platform_serial_table[] = {
.data = (void *)PORT_ALTR_16550_F128, },
{ .compatible = "mrvl,mmp-uart",
.data = (void *)PORT_XSCALE, },
{ .compatible = "mrvl,pxa-uart",
.data = (void *)PORT_XSCALE, },
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(of, of_platform_serial_table);

13
drivers/tty/serial/8250/8250_pxa.c
View file

@ -172,6 +172,19 @@ static struct platform_driver serial_pxa_driver = {
module_platform_driver(serial_pxa_driver);
static int __init early_serial_pxa_setup(struct earlycon_device *device,
const char *options)
{
struct uart_port *port = &device->port;
if (!(device->port.membase || device->port.iobase))
return -ENODEV;
port->regshift = 2;
return early_serial8250_setup(device, NULL);
}
OF_EARLYCON_DECLARE(early_pxa, "mrvl,pxa-uart", early_serial_pxa_setup);
MODULE_AUTHOR("Sergei Ianovich");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa2xx-uart");