Add support for the console over Ethernet (through PCI NE2000).

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Cristian Magherusan-Stanciu <cristi.magherusan@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5666 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/console/Kconfig

@@ -1,5 +1,4 @@
 menu "Console options"
-
 # TODO: Rename to SERIAL_CONSOLE once Kconfig transition is complete.
 config CONSOLE_SERIAL8250
 	bool "Serial port console output"
@@ -130,6 +129,49 @@ config CONSOLE_VGA_ONBOARD_AT_FIRST
 	help
 	  If not selected, the last adapter found will be used.
 
+config CONSOLE_NE2K
+	bool "Network console over NE2000 compatible Ethernet adapter"
+	default n
+	help
+	  Send coreboot debug output to a Ethernet console, it works
+	  same way as Linux netconsole, packets are received to UDP
+	  port 6666 on IP/MAC specified with options bellow.
+	  Use following netcat command: nc -u -l -p 6666
+
+config CONSOLE_NE2K_DST_MAC
+	depends on CONSOLE_NE2K
+	string "Destination MAC address of remote system"
+	default "00:13:d4:76:a2:ac"
+	help
+	  Type in either MAC address of logging system or MAC address
+	  of the router.
+
+config CONSOLE_NE2K_DST_IP
+	depends on CONSOLE_NE2K
+	string "Destination IP of logging system"
+	default "10.0.1.27"
+	help
+	  This is IP adress of the system running for example
+	  netcat command to dump the packets.
+
+config CONSOLE_NE2K_SRC_IP
+	depends on CONSOLE_NE2K
+	string "IP adress of Coreboot system"
+	default "10.0.1.253"
+	help
+	  This is the IP of the Coreboot system
+
+config CONSOLE_NE2K_IO_PORT
+	depends on CONSOLE_NE2K
+	hex "NE2000 adapter fixed IO port address"
+	default 0xe00
+	help
+	  This is the IO port address for the IO port
+	  on the card, please select some non-conflicting region,
+	  32 bytes of IO spaces will be used (and align on 32 bytes
+	  boundary, qemu needs broader align)
+
+
 choice
 	prompt "Maximum console log level"
 	default MAXIMUM_CONSOLE_LOGLEVEL_8

src/console/Makefile.inc

@@ -15,6 +15,7 @@ driver-$(CONFIG_CONSOLE_VGA) += vga_console.o
 driver-$(CONFIG_CONSOLE_BTEXT) += btext_console.o
 driver-$(CONFIG_CONSOLE_BTEXT) += font-8x16.o
 driver-$(CONFIG_CONSOLE_LOGBUF) += logbuf_console.o
+driver-$(CONFIG_CONSOLE_NE2K) += ne2k_console.o
 
 $(obj)/console/console.o : $(obj)/build.h
 $(obj)/console/console.initobj.o : $(obj)/build.h

src/console/console.c

@@ -7,11 +7,14 @@
 #include <arch/hlt.h>
 #include <arch/io.h>
 
+#if CONFIG_CONSOLE_NE2K
+#include <console/ne2k.h>
+#endif
+
 #ifndef __PRE_RAM__
 #include <string.h>
 #include <pc80/mc146818rtc.h>
 
-
 /* initialize the console */
 void console_init(void)
 {
@@ -99,6 +102,10 @@ void __attribute__((noreturn)) die(const char *msg)
 
 void console_init(void)
 {
+
+#if CONFIG_CONSOLE_NE2K
+	ne2k_init(CONFIG_CONSOLE_NE2K_IO_PORT);
+#endif
 	static const char console_test[] =
 		"\n\ncoreboot-"
 		COREBOOT_VERSION

src/console/ne2k_console.c

@@ -0,0 +1,37 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ * Copyright (C) 2010 Rudolf Marek <r.marek@assembler.cz>
+ *
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <console/ne2k.h>
+
+static void ne2k_tx_byte(unsigned char data)
+{
+	ne2k_append_data(&data, 1, CONFIG_CONSOLE_NE2K_IO_PORT);
+}
+
+static void ne2k_tx_flush(void)
+{
+	ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
+}
+
+static const struct console_driver ne2k_console __console = {
+	.tx_byte = ne2k_tx_byte,
+	.tx_flush = ne2k_tx_flush,
+};