diff --git a/util/superiotool/README b/util/superiotool/README
index 2a152f3f68..c971e7f420 100644
--- a/util/superiotool/README
+++ b/util/superiotool/README
@@ -33,7 +33,6 @@ Usage
  $ superiotool [-d] [-D] [-V] [-v] [-h]
 
  -d | --dump            Dump Super I/O registers
- -D | --dump-readable   Dump Super I/O registers in human-readable format
  -V | --verbose         Verbose mode
  -v | --version         Show the superiotool version
  -h | --help            Show a short help text
@@ -51,10 +50,6 @@ Typical usage of superiotool:
 
    $ superiotool -d
 
- - Detailed register dump in human-readable format:
-
-   $ superiotool -D
-
 
 Supported Super I/O Chips
 -------------------------
diff --git a/util/superiotool/ali.c b/util/superiotool/ali.c
index 58d348577a..9331c65c30 100644
--- a/util/superiotool/ali.c
+++ b/util/superiotool/ali.c
@@ -92,7 +92,6 @@ void probe_idregs_ali(uint16_t port)
 	chip_found = 1;
 
 	dump_superio("ALi", reg_table, port, id);
-	dump_superio_readable(port); /* TODO */
 
 	exit_conf_mode_ali(port);
 }
diff --git a/util/superiotool/fintek.c b/util/superiotool/fintek.c
index bdabbc6583..461be1821f 100644
--- a/util/superiotool/fintek.c
+++ b/util/superiotool/fintek.c
@@ -70,68 +70,6 @@ const static struct superio_registers reg_table[] = {
 	{EOT}
 };
 
-static void dump_readable_fintek(uint16_t port, uint16_t did)
-{
-	if (!dump_readable)
-		return;
-
-	printf("Human-readable register dump:\n");
-
-	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 parallel port. */
-	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));
-}
-
 void probe_idregs_fintek(uint16_t port)
 {
 	uint16_t vid, did;
@@ -158,7 +96,6 @@ void probe_idregs_fintek(uint16_t port)
 	chip_found = 1;
 
 	dump_superio("Fintek", reg_table, port, did);
-	dump_readable_fintek(port, did);
 
 	exit_conf_mode_winbond_fintek_ite_8787(port);
 }
diff --git a/util/superiotool/ite.c b/util/superiotool/ite.c
index 6b201d9404..060ebf2f45 100644
--- a/util/superiotool/ite.c
+++ b/util/superiotool/ite.c
@@ -369,7 +369,6 @@ static void probe_idregs_ite_helper(const char *init, uint16_t port)
 	chip_found = 1;
 
 	dump_superio("ITE", reg_table, port, id);
-	dump_superio_readable(port); /* TODO */
 }
 
 void probe_idregs_ite(uint16_t port)
diff --git a/util/superiotool/nsc.c b/util/superiotool/nsc.c
index 3863101bfb..0edf2a0ab5 100644
--- a/util/superiotool/nsc.c
+++ b/util/superiotool/nsc.c
@@ -135,42 +135,6 @@ const static struct superio_registers reg_table[] = {
 	{EOT}
 };
 
-static void dump_readable_pc8374l(uint16_t port)
-{
-	if (!dump_readable)
-		return;
-
-	printf("Human-readable register dump:\n");
-
-	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 probe_idregs_nsc(uint16_t port)
 {
 	uint8_t id, rev;
@@ -205,7 +169,5 @@ void probe_idregs_nsc(uint16_t port)
 	chip_found = 1;
 
 	dump_superio("NSC", reg_table, port, id);
-	if (id == 0xf1)
-		dump_readable_pc8374l(port);
 }
 
diff --git a/util/superiotool/smsc.c b/util/superiotool/smsc.c
index d4e7b6e2b1..f26204dc51 100644
--- a/util/superiotool/smsc.c
+++ b/util/superiotool/smsc.c
@@ -381,7 +381,6 @@ static void probe_idregs_smsc_helper(uint16_t port, uint8_t idreg,
 	chip_found = 1;
 
 	dump_superio((id == 0x77 ? "ASUS" : "SMSC"), reg_table, port, id);
-	dump_superio_readable(port); /* TODO */
 
 	exit_conf_mode_smsc(port);
 }
diff --git a/util/superiotool/superiotool.8 b/util/superiotool/superiotool.8
index 711509ceed..17066bfa01 100644
--- a/util/superiotool/superiotool.8
+++ b/util/superiotool/superiotool.8
@@ -2,7 +2,7 @@
 .SH NAME
 superiotool \- Super I/O detection tool
 .SH SYNOPSIS
-.B superiotool \fR[\fB\-dDVvh\fR] 
+.B superiotool \fR[\fB\-dVvh\fR] 
 .SH DESCRIPTION
 .B superiotool
 is a GPL'd user-space utility which can
@@ -72,17 +72,6 @@ which can mean several things. It's recommended to consult the datasheet for
 detailed information about the
 .BR MM " fields."
 .TP
-.B "\-D, \-\-dump-readable"
-Dump Super I/O registers in human-readable format (if the Super I/O chip
-is detected and
-.B superiotool
-supports the
-.B "\-\-dump-readable"
-option for this chip).
-.sp
-The output format of this option is different for every Super I/O, and only
-very few Super I/Os currently support this option.
-.TP
 .B "\-V, \-\-verbose"
 Enable verbose mode. This option can be used together with the
 .BR "\-d" " or " "\-D" " option (or both)."
diff --git a/util/superiotool/superiotool.c b/util/superiotool/superiotool.c
index 202daec151..47561c9ef0 100644
--- a/util/superiotool/superiotool.c
+++ b/util/superiotool/superiotool.c
@@ -23,7 +23,7 @@
 #include "superiotool.h"
 
 /* Command line options. */
-int dump = 0, dump_readable = 0, verbose = 0;
+int dump = 0, verbose = 0;
 
 /* Global flag which indicates whether a chip was detected at all. */
 int chip_found = 0;
@@ -151,13 +151,6 @@ void dump_superio(const char *vendor,
 	}
 }
 
-void dump_superio_readable(uint16_t port)
-{
-	/* TODO */
-	if (dump_readable)
-		printf("No human-readable dump available for this Super I/O\n");
-}
-
 void probing_for(const char *vendor, const char *info, uint16_t port)
 {
 	if (!verbose)
@@ -179,22 +172,18 @@ int main(int argc, char *argv[])
 
 	const static struct option long_options[] = {
 		{"dump",		no_argument, NULL, 'd'},
-		{"dump-readable",	no_argument, NULL, 'D'},
 		{"verbose",		no_argument, NULL, 'V'},
 		{"version",		no_argument, NULL, 'v'},
 		{"help",		no_argument, NULL, 'h'},
 		{0, 0, 0, 0}
 	};
 
-	while ((opt = getopt_long(argc, argv, "dDVvh",
+	while ((opt = getopt_long(argc, argv, "dVvh",
 				  long_options, &option_index)) != EOF) {
 		switch (opt) {
 		case 'd':
 			dump = 1;
 			break;
-		case 'D':
-			dump_readable = 1;
-			break;
 		case 'V':
 			verbose = 1;
 			break;
diff --git a/util/superiotool/superiotool.h b/util/superiotool/superiotool.h
index f67edcc328..38f9cdfc1a 100644
--- a/util/superiotool/superiotool.h
+++ b/util/superiotool/superiotool.h
@@ -29,9 +29,8 @@
 #include <getopt.h>
 #include <sys/io.h>
 
-#define USAGE "Usage: superiotool [-d] [-D] [-V] [-v] [-h]\n\n\
+#define USAGE "Usage: superiotool [-d] [-V] [-v] [-h]\n\n\
   -d | --dump            Dump Super I/O registers\n\
-  -D | --dump-readable   Dump Super I/O registers in human-readable format\n\
   -V | --verbose         Verbose mode\n\
   -v | --version         Show the superiotool version\n\
   -h | --help            Show a short help text\n\n\
@@ -55,7 +54,7 @@ and print its vendor, name, ID, revision, and config port.\n"
 #define MAXNUMPORTS	(6 + 1)		/* Maximum number of Super I/O ports */
 
 /* Command line parameters. */
-extern int dump, dump_readable, verbose;
+extern int dump, verbose;
 
 extern int chip_found;
 
@@ -80,7 +79,6 @@ const char *get_superio_name(const struct superio_registers reg_table[],
 			     uint16_t id);
 void dump_superio(const char *name, const struct superio_registers reg_table[],
 		  uint16_t port, uint16_t id);
-void dump_superio_readable(uint16_t port);
 void probing_for(const char *vendor, const char *info, uint16_t port);
 
 /* ali.c */
diff --git a/util/superiotool/winbond.c b/util/superiotool/winbond.c
index 44e0c4a3c6..d7a8b9a18f 100644
--- a/util/superiotool/winbond.c
+++ b/util/superiotool/winbond.c
@@ -428,7 +428,6 @@ void probe_idregs_winbond_helper(const char *init, uint16_t port)
 
 	/* TODO: Special notes in dump output for the MISC entries. */
 	dump_superio("Winbond", reg_table, port, id);
-	dump_superio_readable(port); /* TODO */
 }
 
 void probe_idregs_winbond(uint16_t port)