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>

1 files changed, 18 insertions, 17 deletions

diff --git a/board/esd/pmc440/cmd_pmc440.c b/board/esd/pmc440/cmd_pmc440.c
index 0fbc3dc..1af431b 100644
--- a/board/esd/pmc440/cmd_pmc440.c
+++ b/board/esd/pmc440/cmd_pmc440.c
@@ -99,8 +99,8 @@ int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	waithci,	1,	1,	do_waithci,
 	"Wait for host control interrupt",
-	NULL
-	);
+	""
+);
 
 void dump_fifo(pmc440_fpga_t *fpga, int f, int *n)
 {
@@ -266,8 +266,8 @@ U_BOOT_CMD(
 	"  - with 'wait' argument: interrupt driven read from all fifos\n"
 	"  - with 'read' argument: read current contents from all fifos\n"
 	"  - with 'write' argument: write 'data' 'cnt' times to "
-	"'fifo' or 'address'\n"
-	);
+	"'fifo' or 'address'"
+);
 
 int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
@@ -338,7 +338,7 @@ U_BOOT_CMD(
 	sbe, 4, 0, do_setup_bootstrap_eeprom,
 	"setup bootstrap eeprom",
 	"<cpufreq:400|533|667> [<console-uart:0|1> [<bringup delay (0..20s)>]]"
-	);
+);
 
 #if defined(CONFIG_PRAM)
 #include <environment.h>
@@ -400,8 +400,8 @@ int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	painit,	1,	1,	do_painit,
 	"prepare PciAccess system",
-	NULL
-	);
+	""
+);
 #endif /* CONFIG_PRAM */
 
 int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
@@ -412,8 +412,8 @@ int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	selfreset,	1,	1,	do_selfreset,
 	"assert self-reset# signal",
-	NULL
-	);
+	""
+);
 
 int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
@@ -449,8 +449,8 @@ int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	resetout,	2,	1,	do_resetout,
 	"assert PMC-RESETOUT# signal",
-	NULL
-	);
+	""
+);
 
 int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
@@ -481,8 +481,8 @@ int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	inta,	2,	1,	do_inta,
 	"Assert/Deassert or query INTA# state in non-monarch mode",
-	NULL
-	);
+	""
+);
 
 /* test-only */
 int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
@@ -514,8 +514,8 @@ int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(
 	pmm,	2,	1,	do_pmm,
 	"Setup pmm[1] registers",
-	"<pciaddr> (pciaddr will be aligned to 256MB)\n"
-	);
+	"<pciaddr> (pciaddr will be aligned to 256MB)"
+);
 
 #if defined(CONFIG_SYS_EEPROM_WREN)
 int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
@@ -549,8 +549,9 @@ int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return state;
 }
 U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
-	   "Enable / disable / query EEPROM write access",
-	   NULL);
+	"Enable / disable / query EEPROM write access",
+	""
+);
 #endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */
 
 #endif /* CONFIG_CMD_BSP */