Move probe_superio into the global util/ directory.

Rename it to superiotool while we're at it.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2758 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

2 files changed, 544 insertions, 0 deletions

diff --git a/util/superiotool/Makefile b/util/superiotool/Makefile
new file mode 100644
index 0000000000..fb5075d6b4
--- /dev/null
+++ b/util/superiotool/Makefile
@@ -0,0 +1,6 @@
+CC:=gcc
+CFLAGS:=-O2 -Wall
+probe_superio: probe_superio.c
+	$(CC) $(CFLAGS) -o $@ $< 
+clean:
+	rm probe_superio
diff --git a/util/superiotool/probe_superio.c b/util/superiotool/probe_superio.c
new file mode 100644
index 0000000000..aeaf330332
--- /dev/null
+++ b/util/superiotool/probe_superio.c
@@ -0,0 +1,538 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright (C) 2006 Ronald Minnich <rminnich@gmail.com>
+ * Copyright (C) 2006 coresystems GmbH <info@coresystems.de>
+ * Copyright (C) 2007 Carl-Daniel Hailfinger
+ * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * 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.
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <sys/io.h>
+
+/* well, they really thought this through, eh? Family is 8 bits!!!! */
+char *familyid[] = {
+	[0xf1] = "pc8374 (winbond, was NS)"
+};
+
+/* eventually, if you care, break this out into a file. For now, I don't know 
+  * if we need this. 
+  */
+
+unsigned char regval(unsigned short port, unsigned char reg) {
+	outb(reg, port);
+	return inb(port + 1);
+}
+
+void regwrite(unsigned short port, unsigned char reg, unsigned char val) {
+	outb(reg, port);
+	outb(val, port + 1);
+}
+
+void
+dump_ns8374(unsigned short port) {
+	printf("Enables: 21=%02x, 22=%02x, 23=%02x, 24=%02x, 26=%02x\n",
+		regval(port, 0x21), regval(port, 0x22), regval(port, 0x23),
+		regval(port, 0x24), regval(port, 0x26));
+	printf("SMBUS at %02x\n", regval(port, 0x2a));
+	/* check COM1. This is all we care about at present. */
+	printf("COM 1 is Globally %s\n", regval(port, 0x26) & 8 ? "disabled" : "enabled");
+	/* select com1 */
+	regwrite(port, 0x07, 0x03);
+	printf("COM 1 is locally %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n", 
+		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
+		regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
+	/* select gpio */
+	regwrite(port, 0x07, 0x07);
+	printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n", 
+		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
+		regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
+
+}
+
+void
+dump_fintek(unsigned short port, unsigned int did) 
+{
+	switch(did) {
+	case 0x0604:
+		printf ("Fintek F71805\n");
+		break;
+	case 0x4103:
+		printf ("Fintek F71872\n");
+		break;
+	default:
+		printf ("Unknown Fintek SuperI/O: did=0x%04x\n", did);
+		return;
+	}
+
+	printf("Flash write is %s.\n", regval(port, 0x28) & 0x80 ? "enabled" : "disabled");
+	printf("Flash control is 0x%04x.\n", regval(port, 0x28));
+	printf("27=%02x\n", regval(port, 0x27));
+	printf("29=%02x\n", regval(port, 0x29));
+	printf("2a=%02x\n", regval(port, 0x2a));
+	printf("2b=%02x\n", regval(port, 0x2b));
+
+	/* select UART 1 */
+	regwrite(port, 0x07, 0x01);
+	printf("UART1 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n", 
+		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f, 
+		regval(port, 0xf0) & 0x10 ? "RS485":"RS232");
+
+	/* select UART 2 */
+	regwrite(port, 0x07, 0x02);
+	printf("UART2 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n", 
+		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f, 
+		regval(port, 0xf0) & 0x10 ? "RS485":"RS232");
+
+	/* select Parport */
+	regwrite(port, 0x07, 0x03);
+	printf("PARPORT is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("PARPORT base=%02x%02x, irq=%02x\n", 
+		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);
+
+	/* select hw monitor */
+	regwrite(port, 0x07, 0x04);
+	printf("HW monitor is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("HW monitor base=%02x%02x, irq=%02x\n", 
+		regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);
+
+	/* select gpio */
+	regwrite(port, 0x07, 0x05);
+	printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
+	printf("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n", 
+		regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1), regval(port, 0xe2),
+		regval(port, 0xe3), regval(port, 0xe4), regval(port, 0xe5));
+	printf("GPIO e6=%02x, e7=%02x, e8=%02x, e9=%02x, f0=%02x, f1=%02x, f3=%02x, f4=%02x\n", 
+		regval(port, 0xe6), regval(port, 0xe7), regval(port, 0xe8), regval(port, 0xe9),
+		regval(port, 0xf0), regval(port, 0xf1), regval(port, 0xf3), regval(port, 0xf4));
+	printf("GPIO f5=%02x, f6=%02x, f7=%02x, f8=%02x\n", 
+		regval(port, 0xf5), regval(port, 0xf6), regval(port, 0xf7), regval(port, 0xf8));
+
+
+}
+
+/* End Of Table */
+#define EOT -1
+/* NO LDN needed */
+#define NOLDN -2
+/* Not Available */
+#define NANA -3
+/* Maximum Name Length */
+#define MAXNAMELEN 20
+/* Biggest LDN */
+#define MAXLDN 0xa
+/* biggestLDN + 0 + NOLDN + EOT */
+#define LDNSIZE MAXLDN + 3
+/* MAXimum NUMber of Indexes */
+#define MAXNUMIDX 70
+#define IDXSIZE MAXNUMIDX + 1
+
+const static struct ite_registers {
+	/* yes, superio_id should be unsigned, but EOT has to be negative */
+	signed short superio_id;
+	char name[MAXNAMELEN];
+	struct ite_ldnidx {
+		signed short ldn;
+		signed short idx[IDXSIZE];
+		signed short def[IDXSIZE];
+	} ldn[LDNSIZE];
+} ite_reg_table[] = {
+	{0x8702, "IT8702", {
+		{EOT}}},
+	{0x8705, "IT8705 or IT8700", {
+		{EOT}}},
+	{0x8708, "IT8708", {
+		{NOLDN,
+			{0x07,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,
+			 0x29,0x2a,0x2e,0x2f,EOT},
+			{NANA,0x87,0x08,0x00,0x00,NANA,0x3f,0x00,0xff,0xff,
+			 0xff,0xff,0x00,0x00,EOT}},
+		{0x0,
+			{0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
+			{0x00,0x03,0xf0,0x06,0x02,0x00,0x00,EOT}},
+		{0x1,
+			{0x30,0x60,0x61,0x70,0xf0,EOT},
+			{0x00,0x03,0xf8,0x04,0x00,EOT}},
+		{0x2,
+			{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,0xf3,EOT},
+			{0x00,0x02,0xf8,0x03,0x00,0x50,0x00,0x7f,EOT}},
+		{0x3,
+			{0x30,0x60,0x61,0x62,0x63,0x64,0x65,0x70,0x74,
+			 0xf0,EOT},
+			{0x00,0x03,0x78,0x07,0x78,0x00,0x80,0x07,0x03,
+			 0x03,EOT}},
+		{0x4,
+			{0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,
+			 0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,EOT},
+			{NANA,NANA,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,NANA,NANA,EOT}},
+		{0x5,	/* Note: 0x30 can actually be 0x00 _or_ 0x01. */
+			{0x30,0x60,0x61,0x62,0x63,0x70,0x71,0xf0,EOT},
+			{0x01,0x00,0x60,0x00,0x64,0x01,0x02,0x00,EOT}},
+		{0x6,
+			{0x30,0x70,0x71,0xf0,EOT},
+			{0x00,0x0c,0x02,0x00,EOT}},
+		{0x7,
+			{0x70,0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb8,0xb9,0xba,
+			 0xbb,0xbc,0xbd,0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc8,
+			 0xc9,0xca,0xcb,0xcc,0xcd,0xd0,0xd1,0xd2,0xd3,0xd4,
+			 0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xf0,0xf1,
+			 0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,
+			 0xfc,EOT},
+			{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x00,0x00,NANA,NANA,NANA,NANA,NANA,NANA,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,NANA,
+			 0x00,EOT}},
+		{0x8,
+			{0x30,0x60,0x61,EOT},
+			{0x00,0x02,0x01,EOT}},
+		{0x9,
+			{0x30,0x60,0x61,0x70,0xf0,EOT},
+			{0x00,0x03,0x10,0x0b,0x00,EOT}},
+		{0xa,
+			{0x30,0x60,0x61,0x70,0xf0,EOT},
+			{0x00,0x03,0x00,0x0a,0x00,EOT}},
+		{EOT}}},
+	{0x8710, "IT8710", {
+		{EOT}}},
+	{0x8712, "IT8712", {
+		{NOLDN,
+			{0x07,0x20,0x21,0x22,0x23,0x24,0x2b,EOT},
+			{NANA,0x87,0x12,0x08,0x00,0x00,0x00,EOT}},
+		{0x0,
+			{0x30,0x60,0x61,0x70,0x74,0xf0,0xf1,EOT},
+			{0x00,0x03,0xf0,0x06,0x02,0x00,0x00,EOT}},
+		{0x1,
+			{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,0xf3,EOT},
+			{0x00,0x03,0xf8,0x04,0x00,0x50,0x00,0x7f,EOT}},
+		{0x2,
+			{0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,0xf3,EOT},
+			{0x00,0x02,0xf8,0x03,0x00,0x50,0x00,0x7f,EOT}},
+		{0x3,
+			{0x30,0x60,0x61,0x62,0x63,0x70,0x74,0xf0,EOT},
+			{0x00,0x03,0x78,0x07,0x78,0x07,0x03,0x03,EOT}},
+		{0x4,
+			{0x30,0x60,0x61,0x62,0x63,0x70,0xf0,0xf1,0xf2,0xf3,
+			 0xf4,0xf5,0xf6,EOT},
+			{0x00,0x02,0x90,0x02,0x30,0x09,0x00,0x00,0x00,0x00,
+			 0x00,NANA,NANA,EOT}},
+		{0x5,
+			{0x30,0x60,0x61,0x62,0x63,0x70,0x71,0xf0,EOT},
+			{0x01,0x00,0x60,0x00,0x64,0x01,0x02,0x08,EOT}},
+		{0x6,
+			{0x30,0x70,0x71,0xf0,EOT},
+			{0x00,0x0c,0x02,0x00,EOT}},
+		{0x7,
+			{0x25,0x26,0x27,0x28,0x29,0x2a,0x2c,0x60,0x61,0x62,
+			 0x63,0x64,0x65,0x70,0x71,0x72,0x73,0x74,0xb0,0xb1,
+			 0xb2,0xb3,0xb4,0xb5,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,
+			 0xc0,0xc1,0xc2,0xc3,0xc4,0xc8,0xc9,0xca,0xcb,0xcc,
+			 0xe0,0xe1,0xe2,0xe3,0xe4,0xf0,0xf1,0xf2,0xf3,0xf4,
+			 0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,EOT},
+			{0x01,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x30,0x38,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x01,0x00,0x00,0x40,0x00,0x01,0x00,0x00,0x40,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,NANA,0x00,EOT}},
+		{0x8,
+			{0x30,0x60,0x61,0x70,0xf0,EOT},
+			{0x00,0x03,0x00,0x0a,0x00,EOT}},
+		{0x9,
+			{0x30,0x60,0x61,EOT},
+			{0x00,0x02,0x01,EOT}},
+		{0xa,
+			{0x30,0x60,0x61,0x70,0xf0,EOT},
+			{0x00,0x03,0x10,0x0b,0x00,EOT}},
+		{EOT}}},
+	{0x8716, "IT8716", {
+		{EOT}}},
+	{0x8718, "IT8718", {
+		{EOT}}},
+	{EOT}
+};
+
+void
+dump_ite(unsigned short port, unsigned short id) 
+{
+	int i, j, k;
+	signed short *idx;
+	printf ("ITE ");
+
+
+	/* ID Mapping Table
+	   unknown -> IT8711 (no datasheet)
+	   unknown -> IT8722 (no datasheet)
+	   0x8702 -> IT8702
+	   0x8705 -> IT8700 or IT8705
+	   0x8708 -> IT8708
+	   0x8710 -> IT8710
+	   0x8712 -> IT8712
+	   0x8716 -> IT8716
+	   0x8718 -> IT8718
+	   0x8726 -> IT8726 (datasheet wrongly says 0x8716)
+	*/
+	switch(id) {
+	case 0x8702:
+	case 0x8705:
+	case 0x8708:
+	case 0x8710:
+	case 0x8712:
+	case 0x8716:
+	case 0x8718:
+		for (i=0;; i++) {
+			if (ite_reg_table[i].superio_id == EOT)
+				break;
+			if ((unsigned short)ite_reg_table[i].superio_id != id)
+				continue;
+			printf ("%s\n", ite_reg_table[i].name);
+			for (j=0;; j++) {
+				if (ite_reg_table[i].ldn[j].ldn == EOT)
+					break;
+				if (ite_reg_table[i].ldn[j].ldn != NOLDN) {
+					printf("switching to LDN 0x%01x\n",
+					       ite_reg_table[i].ldn[j].ldn);
+					regwrite(port, 0x07,
+					         ite_reg_table[i].ldn[j].ldn);
+				}
+				idx = ite_reg_table[i].ldn[j].idx;
+				printf("idx ");
+				for (k=0;; k++) {
+					if (idx[k] == EOT)
+						break;
+					printf("%02x ", idx[k]);
+				}
+				printf("\nval ");
+				for (k=0;; k++) {
+					if (idx[k] == EOT)
+						break;
+					printf("%02x ", regval(port, idx[k]));
+				}
+				printf("\ndef ");
+				idx = ite_reg_table[i].ldn[j].def;
+				for (k=0;; k++) {
+					if (idx[k] == EOT)
+						break;
+					if (idx[k] == NANA)
+						printf("NA ");
+					else
+						printf("%02x ", idx[k]);
+				}
+				printf("\n");
+			}
+					
+		}
+		break;
+	default:
+		printf ("unknown ITE chip, id=%04x\n", id);
+		for (i=0x20; i<=0x24; i++)
+			printf("index %02x=%02x\n", i, regval(port, i));
+		break;
+	}
+}
+
+void
+probe_idregs_simple(unsigned short port){
+	unsigned char id;
+	outb(0x20, port);
+	if (inb(port) != 0x20)  {
+		if (inb(port) == 0xff )
+			printf ("No SuperI/O chip found at 0x%04x\n", port);
+		else
+			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
+					port, inb(port), inb(port + 1));
+		return;
+	}
+	id = inb(port + 1);
+
+	printf("SuperI/O found at 0x%02x: id = 0x%02x\n", port, id);
+	if (id == 0xff)
+		return;
+
+	if (familyid[id]) 
+		printf("%s\n", familyid[id]);
+	else
+		printf("<unknown>\n");
+
+	switch(id) {
+		case 0xf1:
+			dump_ns8374(port);
+			break;
+		default:
+			printf("no dump for 0x%02x\n", id);
+			break;
+	}
+}
+
+
+void
+probe_idregs_fintek(unsigned short port){
+	unsigned int vid, did, success = 0;
+
+	/* Enable configuration sequence (Fintek uses this for example)
+	   Older ITE chips have the same enable sequence */
+	outb(0x87, port);
+	outb(0x87, port);
+
+	outb(0x20, port);
+	if (inb(port) != 0x20)  {
+		if (inb(port) == 0xff )
+			printf ("No SuperIO chip found at 0x%04x\n", port);
+		else
+			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
+					port, inb(port), inb(port + 1));
+		return;
+	}
+	did = inb(port + 1);
+
+	did |= (regval(port, 0x21)<<8);
+
+	vid = regval(port, 0x23);
+	vid |= (regval(port, 0x24)<<8);
+
+	printf("SuperIO found at 0x%02x: vid=0x%04x/did=0x%04x\n", port, vid, did);
+
+	if (vid == 0xff || vid == 0xffff)
+		return;
+
+	/* printf("%s\n", familyid[id]); */
+	switch(did) {
+		case 0x0887: /* pseudoreversed for ITE8708 */
+		case 0x1087: /* pseudoreversed for ITE8710 */
+			success = 1;
+			dump_ite(port, ((did & 0xff) << 8) | ((did & 0xff00) >> 8));
+			/* disable configuration */
+			regwrite(port, 0x02, 0x02);
+			break;
+		default:
+			break;
+	}
+	switch(vid) {
+		case 0x3419:
+			success = 1;
+			dump_fintek(port, did);
+			break;
+		default:
+			break;
+	}
+	if (!success)
+		printf("no dump for vid 0x%04x, did 0x%04x\n", vid, did);
+
+	/* disable configuration (for Fintek, doesn't hurt ITE) */
+	outb(0xaa, port);
+}
+
+void
+probe_idregs_ite(unsigned short port){
+	unsigned int id, chipver;
+
+	/* Enable configuration sequence (ITE uses this for newer IT87[012]x)
+	   IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
+	   IT8708 uses 0x87, 0x87 -> fintek detection should handle it
+	   IT8761 uses 0x87, 0x61, 0x55, 0x55/0xaa
+	   IT86xx series uses different ports
+	   IT8661 uses 0x86, 0x61, 0x55/0xaa, 0x55/0xaa and 32 more writes
+	   IT8673 uses 0x86, 0x80, 0x55/0xaa, 0x55/0xaa and 32 more writes */
+	outb(0x87, port);
+	outb(0x01, port);
+	outb(0x55, port);
+	if (port == 0x2e)
+		outb(0x55, port);
+	else
+		outb(0xAA, port);
+
+	/* Read Chip ID Byte 1 */
+	id = regval(port, 0x20);
+	if (id != 0x87)  {
+		if (inb(port) == 0xff )
+			printf ("No SuperIO chip found at 0x%04x\n", port);
+		else
+			printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", 
+					port, inb(port), inb(port + 1));
+		return;
+	}
+
+	id <<= 8;
+
+	/* Read Chip ID Byte 2 */
+	id |= regval(port, 0x21);
+
+	/* Read Chip Version, only bit 3..0 for all IT87xx */
+	chipver = regval(port, 0x22) & 0x0f;
+
+	/* ID Mapping Table
+	   unknown -> IT8711 (no datasheet)
+	   unknown -> IT8722 (no datasheet)
+	   0x8702 -> IT8702
+	   0x8705 -> IT8700 or IT8705
+	   0x8708 -> IT8708
+	   0x8710 -> IT8710
+	   0x8712 -> IT8712
+	   0x8716 -> IT8716
+	   0x8718 -> IT8718
+	   0x8726 -> IT8726 (datasheet wrongly says 0x8716)
+	*/
+	printf("SuperI/O found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
+	       port, id, chipver);
+
+	switch(id) {
+		case 0x8702:
+		case 0x8705:
+		case 0x8708:
+		case 0x8712:
+		case 0x8716:
+		case 0x8718:
+		case 0x8726:
+			dump_ite(port, id);
+			break;
+		default:
+			printf("no dump for id 0x%04x\n", id);
+			break;
+	}
+	/* disable configuration */
+	regwrite(port, 0x02, 0x02);
+}
+
+void
+probe_superio(unsigned short port) {
+	probe_idregs_simple(port);
+	probe_idregs_fintek(port);
+	probe_idregs_ite(port);
+}
+
+int
+main(int argc, char *argv[])
+{
+	if (iopl(3) < 0) {
+		perror("iopl");
+		exit(1);
+	}
+
+	/* try the 2e */
+	probe_superio(0x2e);
+	/* now try the 4e */
+	probe_superio(0x4e);
+
+	return 0;
+}