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Here is a driver for the SGI SN2 (Altix, http://www.sgi.com/altix )
serial console. It uses SAL calls to do it's work, so it is not based
on the core UART code. I've included a hunk for the MAINTAINERS file
since I will be looking after it.
Thanks,
Chad
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# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.1341 -> 1.1343
# drivers/char/Kconfig 1.14 -> 1.15
# MAINTAINERS 1.148 -> 1.149
# drivers/char/Makefile 1.58 -> 1.59
# (new) -> 1.13 drivers/char/sn_serial.c
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 03/06/26 chadt@tomahawk.engr.sgi.com 1.1342
# Add sn_serial.c driver
# --------------------------------------------
# 03/06/27 chadt@tomahawk.engr.sgi.com 1.1343
# Port SGI SN2 console driver to 2.5
# --------------------------------------------
#
diff -Nru a/MAINTAINERS b/MAINTAINERS
--- a/MAINTAINERS Fri Jun 27 17:37:36 2003
+++ b/MAINTAINERS Fri Jun 27 17:37:36 2003
@@ -1626,6 +1626,12 @@
W: http://www.weinigel.se
S: Supported
+SGI SN-IA64 (Altix) SERIAL CONSOLE DRIVER
+P: Chad Talbott
+M: chadt@sgi.com
+L: linux-ia64@vger.kernel.org
+S: Supported
+
SGI VISUAL WORKSTATION 320 AND 540
P: Andrey Panin
M: pazke@orbita1.ru
diff -Nru a/drivers/char/Kconfig b/drivers/char/Kconfig
--- a/drivers/char/Kconfig Fri Jun 27 17:37:36 2003
+++ b/drivers/char/Kconfig Fri Jun 27 17:37:36 2003
@@ -391,6 +391,22 @@
If you have an Alchemy AU1000 processor (MIPS based) and you want
to use a console on a serial port, say Y. Otherwise, say N.
+config SGI_L1_SERIAL
+ bool "SGI SN2 L1 serial port support"
+ depends on SERIAL_NONSTANDARD && IA64
+ help
+ If you have an SGI SN2 and you want to use the serial port
+ connected to the system controller (you want this!), say Y.
+ Otherwise, say N.
+
+config SGI_L1_SERIAL_CONSOLE
+ bool "SGI SN2 L1 serial console support"
+ depends on SGI_L1_SERIAL
+ help
+ If you have an SGI SN2 and you would like to use the system
+ controller serial port as your console (you want this!),
+ say Y. Otherwise, say N.
+
config QTRONIX_KEYBOARD
bool "Enable Qtronix 990P Keyboard Support"
depends on IT8712
diff -Nru a/drivers/char/Makefile b/drivers/char/Makefile
--- a/drivers/char/Makefile Fri Jun 27 17:37:36 2003
+++ b/drivers/char/Makefile Fri Jun 27 17:37:36 2003
@@ -41,6 +41,7 @@
obj-$(CONFIG_SERIAL_TX3912) += generic_serial.o serial_tx3912.o
obj-$(CONFIG_HVC_CONSOLE) += hvc_console.o
obj-$(CONFIG_RAW_DRIVER) += raw.o
+obj-$(CONFIG_SGI_L1_SERIAL) += sn_serial.o
obj-$(CONFIG_PRINTER) += lp.o
obj-$(CONFIG_TIPAR) += tipar.o
diff -Nru a/drivers/char/sn_serial.c b/drivers/char/sn_serial.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/drivers/char/sn_serial.c Fri Jun 27 17:37:36 2003
@@ -0,0 +1,870 @@
+/*
+ * C-Brick Serial Port (and console) driver for SGI Altix machines.
+ *
+ * This driver is NOT suitable for talking to the l1-controller for
+ * anything other than 'console activities' --- please use the l1
+ * driver for that.
+ *
+ *
+ * Copyright (c) 2003 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/NoticeExplan
+ */
+
+
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/console.h>
+#include <linux/module.h>
+#ifdef CONFIG_MAGIC_SYSRQ
+#include <linux/sysrq.h>
+#endif
+#include <linux/circ_buf.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/sn/sn_sal.h>
+#include <asm/sn/nodepda.h>
+#include <asm/sn/simulator.h>
+#include <asm/sn/sn2/intr.h>
+#include <asm/sn/sn2/sn_private.h>
+#include <asm/sn/uart16550.h>
+
+#if defined(CONFIG_SGI_L1_SERIAL_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+static char sysrq_serial_str[] = "\eSYS";
+static char *sysrq_serial_ptr = sysrq_serial_str;
+static unsigned long sysrq_requested;
+#endif /* CONFIG_SGI_L1_SERIAL_CONSOLE && CONFIG_MAGIC_SYSRQ */
+
+static char *serial_name = "SGI SN SAL Console Serial driver";
+static char *serial_version = "1.0";
+stat