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path: root/drivers/tty/serial/8250_fourport.c
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Diffstat (limited to 'drivers/tty/serial/8250_fourport.c')
-rw-r--r--drivers/tty/serial/8250_fourport.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250_fourport.c b/drivers/tty/serial/8250_fourport.c
new file mode 100644
index 000000000000..6375d68b7913
--- /dev/null
+++ b/drivers/tty/serial/8250_fourport.c
@@ -0,0 +1,53 @@
+/*
+ * linux/drivers/serial/8250_fourport.c
+ *
+ * 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");