General help message cleanup

Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.

Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.

This patch cleans this up - for example:

Before:
	=> help dtt
	dtt - Digital Thermometer and Thermostat

	Usage:
	dtt         - Read temperature from digital thermometer and thermostat.

After:
	=> help dtt
	dtt - Read temperature from Digital Thermometer and Thermostat

	Usage:
	dtt

Signed-off-by: Wolfgang Denk <wd@denx.de>

14 files changed, 40 insertions, 40 deletions

diff --git a/board/amcc/acadia/cmd_acadia.c b/board/amcc/acadia/cmd_acadia.c
index d47cf1a..c427f9e 100644
--- a/board/amcc/acadia/cmd_acadia.c
+++ b/board/amcc/acadia/cmd_acadia.c
@@ -97,5 +97,5 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	bootstrap,	3,	0,	do_bootstrap,
 	"program the I2C bootstrap EEPROM",
-	"<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM\n"
-	);
+	"<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM"
+);
diff --git a/board/amcc/canyonlands/bootstrap.c b/board/amcc/canyonlands/bootstrap.c
index 30046fe..6dc2cca 100644
--- a/board/amcc/canyonlands/bootstrap.c
+++ b/board/amcc/canyonlands/bootstrap.c
@@ -191,5 +191,5 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	bootstrap,	2,	0,	do_bootstrap,
 	"program the I2C bootstrap EEPROM",
-	"<nand|nor> - strap to boot from NAND or NOR flash\n"
-	);
+	"<nand|nor> - strap to boot from NAND or NOR flash"
+);
diff --git a/board/amcc/katmai/cmd_katmai.c b/board/amcc/katmai/cmd_katmai.c
index 2c2849b..335d30c 100644
--- a/board/amcc/katmai/cmd_katmai.c
+++ b/board/amcc/katmai/cmd_katmai.c
@@ -214,5 +214,5 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	bootstrap,	3,	1,	do_bootstrap,
 	"program the serial device strap",
-	"wrclk [prom0|prom1] - program the serial device strap\n"
-	);
+	"wrclk [prom0|prom1] - program the serial device strap"
+);
diff --git a/board/amcc/kilauea/cmd_pll.c b/board/amcc/kilauea/cmd_pll.c
index 6b38493..9bae67e 100644
--- a/board/amcc/kilauea/cmd_pll.c
+++ b/board/amcc/kilauea/cmd_pll.c
@@ -291,7 +291,7 @@ U_BOOT_CMD(
 	RCONF: Read current eeprom configuration.      \n\
 	-----------------------------------------------\n\
 	WTEST: Test EEPROM write with predefined values\n\
-	-----------------------------------------------\n"
-	);
+	-----------------------------------------------"
+);
 
 #endif	/* CONFIG_CMD_EEPROM */
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index d2a3b9e..7d02d90 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -331,5 +331,5 @@ U_BOOT_CMD(
 	l2cache,   2,   1,     do_l2cache,
 	"enable or disable L2 cache",
 	"[on, off]\n"
-	"    - enable or disable L2 cache\n"
-	);
+	"    - enable or disable L2 cache"
+);
diff --git a/board/amcc/makalu/cmd_pll.c b/board/amcc/makalu/cmd_pll.c
index 6b38493..9bae67e 100644
--- a/board/amcc/makalu/cmd_pll.c
+++ b/board/amcc/makalu/cmd_pll.c
@@ -291,7 +291,7 @@ U_BOOT_CMD(
 	RCONF: Read current eeprom configuration.      \n\
 	-----------------------------------------------\n\
 	WTEST: Test EEPROM write with predefined values\n\
-	-----------------------------------------------\n"
-	);
+	-----------------------------------------------"
+);
 
 #endif	/* CONFIG_CMD_EEPROM */
diff --git a/board/amcc/sequoia/cmd_sequoia.c b/board/amcc/sequoia/cmd_sequoia.c
index 6dfd8ba..01dd97c 100644
--- a/board/amcc/sequoia/cmd_sequoia.c
+++ b/board/amcc/sequoia/cmd_sequoia.c
@@ -227,5 +227,5 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	bootstrap,	2,	0,	do_bootstrap,
 	"program the I2C bootstrap EEPROM",
-	"<nand|nor> - strap to boot from NAND or NOR flash\n"
-	);
+	"<nand|nor> - strap to boot from NAND or NOR flash"
+);
diff --git a/board/amcc/taihu/lcd.c b/board/amcc/taihu/lcd.c
index 6b68f33..c3dc983 100644
--- a/board/amcc/taihu/lcd.c
+++ b/board/amcc/taihu/lcd.c
@@ -233,25 +233,25 @@ static int do_lcd_cur (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	lcd_cls, 1, 1, do_lcd_clear,
 	"lcd clear display",
-	NULL
-	);
+	""
+);
 
 U_BOOT_CMD(
 	lcd_puts, 2, 1, do_lcd_puts,
 	"display string on lcd",
-	"<string> - <string> to be displayed\n"
-	);
+	"<string> - <string> to be displayed"
+);
 
 U_BOOT_CMD(
 	lcd_putc, 2, 1, do_lcd_putc,
 	"display char on lcd",
-	"<char> - <char> to be displayed\n"
-	);
+	"<char> - <char> to be displayed"
+);
 
 U_BOOT_CMD(
 	lcd_cur, 3, 1, do_lcd_cur,
 	"shift cursor on lcd",
 	"<count> <dir> - shift cursor on lcd <count> times, direction is <dir> \n"
 	" <count> - 0..31\n"
-	" <dir>   - 0=backward 1=forward\n"
-	);
+	" <dir>   - 0=backward 1=forward"
+);
diff --git a/board/amcc/taihu/taihu.c b/board/amcc/taihu/taihu.c
index 669429b..d8806ac 100644
--- a/board/amcc/taihu/taihu.c
+++ b/board/amcc/taihu/taihu.c
@@ -94,8 +94,8 @@ static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
 U_BOOT_CMD (
 	sw2_stat, 1, 1, do_sw_stat,
 	"show status of switch 2",
-	NULL
-	);
+	""
+);
 
 static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
 {
@@ -134,8 +134,8 @@ U_BOOT_CMD (
 	led_ctl, 3, 1, do_led_ctl,
 	"make led 1 or 2  on or off",
 	"<led_no> <on/off>	-  make led <led_no> on/off,\n"
-	"\tled_no is 1 or 2\t"
-	);
+	"\tled_no is 1 or 2"
+);
 
 #define SPI_CS_GPIO0	0
 #define SPI_SCLK_GPIO14	14
diff --git a/board/amcc/taihu/update.c b/board/amcc/taihu/update.c
index 8e96905..f9c31b3 100644
--- a/board/amcc/taihu/update.c
+++ b/board/amcc/taihu/update.c
@@ -128,5 +128,5 @@ static int update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char *argv[]
 U_BOOT_CMD (
 	update_boot_eeprom, 1, 1, update_boot_eeprom,
 	"update boot eeprom content",
-	NULL
-	);
+	""
+);
diff --git a/board/amcc/taishan/lcd.c b/board/amcc/taishan/lcd.c
index e4d0705..d432cc3 100644
--- a/board/amcc/taishan/lcd.c
+++ b/board/amcc/taishan/lcd.c
@@ -254,18 +254,18 @@ static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-U_BOOT_CMD(lcd_test, 1, 1, do_lcd_test, "lcd test display", NULL);
-U_BOOT_CMD(lcd_cls, 1, 1, do_lcd_clear, "lcd clear display", NULL);
+U_BOOT_CMD(lcd_test, 1, 1, do_lcd_test, "lcd test display", "");
+U_BOOT_CMD(lcd_cls, 1, 1, do_lcd_clear, "lcd clear display", "");
 U_BOOT_CMD(lcd_puts, 2, 1, do_lcd_puts,
 	   "display string on lcd",
-	   "<string> - <string> to be displayed\n");
+	   "<string> - <string> to be displayed");
 U_BOOT_CMD(lcd_putc, 2, 1, do_lcd_putc,
 	   "display char on lcd",
-	   "<char> - <char> to be displayed\n");
+	   "<char> - <char> to be displayed");
 U_BOOT_CMD(lcd_cur, 3, 1, do_lcd_cur,
 	   "shift cursor on lcd",
 	   "<count> <dir>- shift cursor on lcd <count> times, direction is <dir> \n"
-	   " <count> - 0~31\n" " <dir> - 0,backward; 1, forward\n");
+	   " <count> - 0~31\n" " <dir> - 0,backward; 1, forward");
 
 #if 0 /* test-only */
 void set_phy_loopback_mode(void)
@@ -373,8 +373,8 @@ static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 }
 
 U_BOOT_CMD(ledon, 1, 1, do_led_test_on,
-	   "led test light on", NULL);
+	   "led test light on", "");
 
 U_BOOT_CMD(ledoff, 1, 1, do_led_test_off,
-	   "led test light off", NULL);
+	   "led test light off", "");
 #endif
diff --git a/board/amcc/taishan/showinfo.c b/board/amcc/taishan/showinfo.c
index b471c95..2a78a22 100644
--- a/board/amcc/taishan/showinfo.c
+++ b/board/amcc/taishan/showinfo.c
@@ -168,7 +168,7 @@ int do_show_xbridge_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 }
 
 U_BOOT_CMD(xbriinfo, 1, 1, do_show_xbridge_info,
-	   "Show PCIX bridge info", NULL);
+	   "Show PCIX bridge info", "");
 
 #define TAISHAN_PCI_DEV_ID0 0x800
 #define TAISHAN_PCI_DEV_ID1 0x1000
@@ -222,7 +222,7 @@ int do_show_pcix_device_info(cmd_tbl_t * cmdtp, int flag, int argc,
 }
 
 U_BOOT_CMD(xdevinfo, 1, 1, do_show_pcix_device_info,
-	   "Show PCIX Device info", NULL);
+	   "Show PCIX Device info", "");
 
 extern void show_reset_reg(void);
 
@@ -233,4 +233,4 @@ int do_show_reset_reg_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 }
 
 U_BOOT_CMD(resetinfo, 1, 1, do_show_reset_reg_info,
-	   "Show Reset REG info", NULL);
+	   "Show Reset REG info", "");
diff --git a/board/amcc/taishan/update.c b/board/amcc/taishan/update.c
index 63f8744..aab3a65 100644
--- a/board/amcc/taishan/update.c
+++ b/board/amcc/taishan/update.c
@@ -74,5 +74,5 @@ int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 }
 
 U_BOOT_CMD(update_boot_eeprom, 1, 1, do_update_boot_eeprom,
-	   "update bootstrap eeprom content", NULL);
+	   "update bootstrap eeprom content", "");
 #endif
diff --git a/board/amcc/yucca/cmd_yucca.c b/board/amcc/yucca/cmd_yucca.c
index d2ca257..ed6daa3 100644
--- a/board/amcc/yucca/cmd_yucca.c
+++ b/board/amcc/yucca/cmd_yucca.c
@@ -282,5 +282,5 @@ static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
 U_BOOT_CMD(
 	evb440spe,	3,	1,	do_evb440spe,
 	"program the serial device strap",
-	"wrclk [prom0|prom1] - program the serial device strap\n"
+	"wrclk [prom0|prom1] - program the serial device strap"
 );