superiotool: add detection and dump of Infineon SLB9635 TPM

Change-Id: If94ea5f45135a4b65bdd37532851fa0ba864bb73
Signed-off-by: Jonathan A. Kollasch <jakllsch@kollasch.net>
Reviewed-on: http://review.coreboot.org/421
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

3 files changed, 94 insertions, 1 deletions

diff --git a/util/superiotool/Makefile b/util/superiotool/Makefile
index 5cc7650ad8..e7d2f6329e 100644
--- a/util/superiotool/Makefile
+++ b/util/superiotool/Makefile
@@ -34,7 +34,7 @@ CFLAGS += -O2 -Wall -Wstrict-prototypes -Wundef -Wstrict-aliasing \
 LDFLAGS += -lz
 
 OBJS = superiotool.o serverengines.o ali.o fintek.o ite.o nsc.o nuvoton.o \
-       smsc.o winbond.o
+       smsc.o winbond.o infineon.o
 
 OS_ARCH = $(shell uname)
 ifeq ($(OS_ARCH), Darwin)
diff --git a/util/superiotool/infineon.c b/util/superiotool/infineon.c
new file mode 100644
index 0000000000..56bc062064
--- /dev/null
+++ b/util/superiotool/infineon.c
@@ -0,0 +1,87 @@
+/*
+ * This file is part of the superiotool project.
+ *
+ * Copyright (C) 2011 Jonathan A. Kollasch <jakllsch@kollasch.net>
+ *
+ * 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 "superiotool.h"
+
+#define DEVICE_ID_REG		0x20
+#define DEVICE_REV_REG		0x21
+
+static const struct superio_registers reg_table[] = {
+	{0x0b, "SLB9635TT12", {
+		{NOLDN, NULL,
+			{0x20,0x21,0x26,0x27,EOT},
+			{0x0b,0x00,NANA,NANA,EOT}},
+		{0, NULL,
+			{0x30,0x38,0x60,0x61,0x70,0x71,0xf1,0xf2,0xf3,0xf4,0xf5,EOT},
+			{0x00,0x00,NANA,NANA,0x00,0x02,0xd1,0x15,0x0b,0x00,NANA,EOT}},
+		{EOT}}},
+	{EOT}
+};
+
+/* same as some SMSC */
+static void enter_conf_mode_infineon(uint16_t port)
+{
+	OUTB(0x55, port);
+}
+
+static void exit_conf_mode_infineon(uint16_t port)
+{
+	OUTB(0xaa, port);
+}
+
+void probe_idregs_infineon(uint16_t port)
+{
+	uint8_t rev, devid;
+
+	probing_for("Infineon", "", port);
+
+	enter_conf_mode_infineon(port);
+
+	devid = regval(port, DEVICE_ID_REG);
+	rev = regval(port, DEVICE_REV_REG);
+
+	if (superio_unknown(reg_table, devid)) {
+		if (verbose)
+			printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", devid, rev);
+		exit_conf_mode_infineon(port);
+		return;
+	}
+
+	/* Attempt to prevent false matches on SMSC FDC37N972, see smsc.c */
+	if (((regval(port, 0x27)<<8)|regval(port, 0x26)) != port) {
+		if (verbose)
+			printf(NOTFOUND "id=0x%02x, rev=0x%02x\n", devid, rev);
+		exit_conf_mode_infineon(port);
+		return;
+	}
+
+	printf("Found Infineon %s (id=0x%02x, rev=0x%02x) at 0x%x\n",
+	       get_superio_name(reg_table, devid), devid, rev, port);
+	chip_found = 1;
+
+	dump_superio("Infineon", reg_table, port, devid, LDN_SEL);
+
+	exit_conf_mode_infineon(port);
+}
+
+void print_infineon_chips(void)
+{
+	print_vendor_chips("Infineon", reg_table);
+}
diff --git a/util/superiotool/superiotool.h b/util/superiotool/superiotool.h
index f705a58d82..5583ec5669 100644
--- a/util/superiotool/superiotool.h
+++ b/util/superiotool/superiotool.h
@@ -195,6 +195,10 @@ void probe_idregs_fintek(uint16_t port);
 void probe_idregs_fintek_alternative(uint16_t port);
 void print_fintek_chips(void);
 
+/* infineon.c */
+void probe_idregs_infineon(uint16_t port);
+void print_infineon_chips(void);
+
 /* ite.c */
 void probe_idregs_ite(uint16_t port);
 void print_ite_chips(void);
@@ -243,6 +247,7 @@ static const struct {
 	{probe_idregs_amd,	{0xaa, EOT}},
 #endif
 	{probe_idregs_serverengines,	{0x2e, EOT}},
+	{probe_idregs_infineon,	{0x2e, 0x4e}},
 };
 
 /** Table of functions to print out supported Super I/O chips. */
@@ -261,6 +266,7 @@ static const struct {
 	{print_amd_chips},
 #endif
 	{print_serverengines_chips},
+	{print_infineon_chips},
 };
 
 #endif