1 files changed, 51 insertions, 0 deletions

diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/serial/8250/8250_fourport.c
new file mode 100644
index 000000000000..be1582609626
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -0,0 +1,51 @@
+/*
+ *  Copyright (C) 2005 Russell King.
+ *  Data taken from include/asm-i386/serial.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define PORT(_base,_irq)                                                \
+        {                                                               \
+                .iobase         = _base,                                \
+                .irq            = _irq,                                 \
+                .uartclk        = 1843200,                              \
+                .iotype         = UPIO_PORT,                            \
+                .flags          = UPF_BOOT_AUTOCONF | UPF_FOURPORT,     \
+        }
+
+static struct plat_serial8250_port fourport_data[] = {
+        PORT(0x1a0, 9),
+        PORT(0x1a8, 9),
+        PORT(0x1b0, 9),
+        PORT(0x1b8, 9),
+        PORT(0x2a0, 5),
+        PORT(0x2a8, 5),
+        PORT(0x2b0, 5),
+        PORT(0x2b8, 5),
+        { },
+};
+
+static struct platform_device fourport_device = {
+        .name                   = "serial8250",
+        .id                     = PLAT8250_DEV_FOURPORT,
+        .dev                    = {
+                .platform_data  = fourport_data,
+        },
+};
+
+static int __init fourport_init(void)
+{
+        return platform_device_register(&fourport_device);
+}
+
+module_init(fourport_init);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("8250 serial probe module for AST Fourport cards");
+MODULE_LICENSE("GPL");