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Subject[PATCH] serial: 8250: pxa: add devicetree earlyconsole
Date
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>
---
drivers/tty/serial/8250/8250_of.c | 2 --
drivers/tty/serial/8250/8250_pxa.c | 13 +++++++++++++
2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index 7a8b5fc81a19..d25ab1cd4295 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -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);
diff --git a/drivers/tty/serial/8250/8250_pxa.c b/drivers/tty/serial/8250/8250_pxa.c
index 6a14df013754..3b08f342851a 100644
--- a/drivers/tty/serial/8250/8250_pxa.c
+++ b/drivers/tty/serial/8250/8250_pxa.c
@@ -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");
--
2.1.4
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