serial: remove NWP serial support

The NWP serial driver is no longer needed, as the two users of
this hardware have migrated to a much faster generation hardware,
see https://en.wikipedia.org/wiki/QPACE2 for the replacement.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Krill <ben@codiert.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/Kconfig

@@ -1099,7 +1099,7 @@ config SERIAL_NETX_CONSOLE
 config SERIAL_OF_PLATFORM
 	tristate "Serial port on Open Firmware platform bus"
 	depends on OF
-	depends on SERIAL_8250 || SERIAL_OF_PLATFORM_NWPSERIAL
+	depends on SERIAL_8250
 	help
 	  If you have a PowerPC based system that has serial ports
 	  on a platform specific bus, you should enable this option.
@@ -1133,23 +1133,6 @@ config SERIAL_OMAP_CONSOLE
 	  your boot loader about how to pass options to the kernel at
 	  boot time.)
 
-config SERIAL_OF_PLATFORM_NWPSERIAL
-	tristate "NWP serial port driver"
-	depends on PPC_DCR
-	select SERIAL_OF_PLATFORM
-	select SERIAL_CORE_CONSOLE
-	select SERIAL_CORE
-	help
-	  This driver supports the cell network processor nwp serial
-	  device.
-
-config SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE
-	bool "Console on NWP serial port"
-	depends on SERIAL_OF_PLATFORM_NWPSERIAL=y
-	select SERIAL_CORE_CONSOLE
-	help
-	  Support for Console on the NWP serial ports.
-
 config SERIAL_LANTIQ
 	bool "Lantiq serial driver"
 	depends on LANTIQ

drivers/tty/serial/Makefile

@@ -64,7 +64,6 @@ obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
 obj-$(CONFIG_SERIAL_MSM) += msm_serial.o
 obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
 obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
-obj-$(CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL) += nwpserial.o
 obj-$(CONFIG_SERIAL_KGDB_NMI) += kgdb_nmi.o
 obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
 obj-$(CONFIG_SERIAL_OMAP) += omap-serial.o

drivers/tty/serial/of_serial.c

@@ -215,11 +215,6 @@ static int of_platform_serial_probe(struct platform_device *ofdev)
 		ret = serial8250_register_8250_port(&port8250);
 		break;
 	}
-#endif
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
-	case PORT_NWPSERIAL:
-		ret = nwpserial_register_port(&port);
-		break;
 #endif
 	default:
 		/* need to add code for these */
@@ -252,11 +247,6 @@ static int of_platform_serial_remove(struct platform_device *ofdev)
 	case PORT_8250 ... PORT_MAX_8250:
 		serial8250_unregister_port(info->line);
 		break;
-#endif
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
-	case PORT_NWPSERIAL:
-		nwpserial_unregister_port(info->line);
-		break;
 #endif
 	default:
 		/* need to add code for these */
@@ -356,10 +346,6 @@ static const struct of_device_id of_platform_serial_table[] = {
 		.data = (void *)PORT_XSCALE, },
 	{ .compatible = "mrvl,pxa-uart",
 		.data = (void *)PORT_XSCALE, },
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
-	{ .compatible = "ibm,qpace-nwp-serial",
-		.data = (void *)PORT_NWPSERIAL, },
-#endif
 	{ /* end of list */ },
 };
 MODULE_DEVICE_TABLE(of, of_platform_serial_table);

include/linux/nwpserial.h

-/*
- *  Serial Port driver for a NWP uart device
- *
- *    Copyright (C) 2008 IBM Corp., Benjamin Krill <ben@codiert.org>
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-#ifndef _NWPSERIAL_H
-#define _NWPSERIAL_H
-
-int nwpserial_register_port(struct uart_port *port);
-void nwpserial_unregister_port(int line);
-
-#endif /* _NWPSERIAL_H */

include/uapi/linux/serial_core.h

@@ -176,7 +176,7 @@
 
 #define PORT_S3C6400	84
 
-/* NWPSERIAL */
+/* NWPSERIAL, now removed */
 #define PORT_NWPSERIAL	85
 
 /* MAX3100 */