1 files changed, 122 insertions, 0 deletions

diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
new file mode 100644
index 000000000000..d8c0ffbfa6e3
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -0,0 +1,122 @@
+/*
+ *      Serial Device Initialisation for Lasi/Asp/Wax/Dino
+ *
+ *      (c) Copyright Matthew Wilcox <willy@debian.org> 2001-2002
+ *
+ *      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.
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/serial_core.h>
+#include <linux/signal.h>
+#include <linux/types.h>
+
+#include <asm/hardware.h>
+#include <asm/parisc-device.h>
+#include <asm/io.h>
+
+#include "8250.h"
+
+static int __init serial_init_chip(struct parisc_device *dev)
+{
+        struct uart_port port;
+        unsigned long address;
+        int err;
+
+        if (!dev->irq) {
+                /* We find some unattached serial ports by walking native
+                 * busses.  These should be silently ignored.  Otherwise,
+                 * what we have here is a missing parent device, so tell
+                 * the user what they're missing.
+                 */
+                if (parisc_parent(dev)->id.hw_type != HPHW_IOA)
+                        printk(KERN_INFO
+                                "Serial: device 0x%llx not configured.\n"
+                                "Enable support for Wax, Lasi, Asp or Dino.\n",
+                                (unsigned long long)dev->hpa.start);
+                return -ENODEV;
+        }
+
+        address = dev->hpa.start;
+        if (dev->id.sversion != 0x8d)
+                address += 0x800;
+
+        memset(&port, 0, sizeof(port));
+        port.iotype     = UPIO_MEM;
+        /* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
+        port.uartclk    = 7272727;
+        port.mapbase    = address;
+        port.membase    = ioremap_nocache(address, 16);
+        port.irq        = dev->irq;
+        port.flags      = UPF_BOOT_AUTOCONF;
+        port.dev        = &dev->dev;
+
+        err = serial8250_register_port(&port);
+        if (err < 0) {
+                printk(KERN_WARNING
+                        "serial8250_register_port returned error %d\n", err);
+                iounmap(port.membase);
+                return err;
+        }
+
+        return 0;
+}
+
+static struct parisc_device_id serial_tbl[] = {
+        { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
+        { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
+        { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
+        { 0 }
+};
+
+/* Hack.  Some machines have SERIAL_0 attached to Lasi and SERIAL_1
+ * attached to Dino.  Unfortunately, Dino appears before Lasi in the device
+ * tree.  To ensure that ttyS0 == SERIAL_0, we register two drivers; one
+ * which only knows about Lasi and then a second which will find all the
+ * other serial ports.  HPUX ignores this problem.
+ */
+static struct parisc_device_id lasi_tbl[] = {
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03E, 0x0008C }, /* B132L+ */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03F, 0x0008C }, /* B180L+ */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x046, 0x0008C }, /* Rocky2 120 */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x047, 0x0008C }, /* Rocky2 150 */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x04E, 0x0008C }, /* Kiji L2 132 */
+        { HPHW_FIO, HVERSION_REV_ANY_ID, 0x056, 0x0008C }, /* Raven+ */
+        { 0 }
+};
+
+
+MODULE_DEVICE_TABLE(parisc, serial_tbl);
+
+static struct parisc_driver lasi_driver = {
+        .name           = "serial_1",
+        .id_table       = lasi_tbl,
+        .probe          = serial_init_chip,
+};
+
+static struct parisc_driver serial_driver = {
+        .name           = "serial",
+        .id_table       = serial_tbl,
+        .probe          = serial_init_chip,
+};
+
+static int __init probe_serial_gsc(void)
+{
+        register_parisc_driver(&lasi_driver);
+        register_parisc_driver(&serial_driver);
+        return 0;
+}
+
+module_init(probe_serial_gsc);
+
+MODULE_LICENSE("GPL");