NAND: help/usage/doc updates

Usage messages should use the same EBNF as the User's Guide;
no angle brackets.  Be more complete too ... some params were
missing.  Improve and correct various helptexts.

Make user's guide refer to the NAND "driver" name, not the
controller name; that's a bit more precise.

Don't use "&function"; its name is its address.  Line up struct
initializers properly.  Remove some blank lines.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

1 files changed, 8 insertions, 6 deletions

diff --git a/src/flash/nand/at91sam9.c b/src/flash/nand/at91sam9.c
index 5cfbb0a3..92ab047f 100644
--- a/src/flash/nand/at91sam9.c
+++ b/src/flash/nand/at91sam9.c
@@ -697,28 +697,30 @@ static const struct command_registration at91sam9_sub_command_handlers[] = {
 		.handler = handle_at91sam9_cle_command,
 		.mode = COMMAND_CONFIG,
 		.help = "set command latch enable address line (default is 22)",
-		.usage = "<device_id> <address_line>",
+		.usage = "bank_id address_line",
 	},
 	{
 		.name = "ale",
 		.handler = handle_at91sam9_ale_command,
 		.mode = COMMAND_CONFIG,
 		.help = "set address latch enable address line (default is 21)",
-		.usage = "<device_id> <address_line>",
+		.usage = "bank_id address_line",
 	},
 	{
 		.name = "rdy_busy",
 		.handler = handle_at91sam9_rdy_busy_command,
 		.mode = COMMAND_CONFIG,
-		.help = "set the input pin connected to RDY/~BUSY signal (no default)",
-		.usage = "<device_id> <base_pioc> <pin_num>",
+		.help = "set the GPIO input pin connected to "
+			"the RDY/~BUSY signal (no default)",
+		.usage = "bank_id pio_base_addr pin_num",
 	},
 	{
 		.name = "ce",
 		.handler = handle_at91sam9_ce_command,
 		.mode = COMMAND_CONFIG,
-		.help = "set the output pin connected to chip enable signal (no default)",
-		.usage = "<device_id> <base_pioc> <pin_num>",
+		.help = "set the GPIO output pin connected to "
+			"the chip enable signal (no default)",
+		.usage = "bank_id pio_base_addr pin_num",
 	},
 	COMMAND_REGISTRATION_DONE
 };