from at91sam7.c:1097
static const struct command_registration at91sam7_exec_command_handlers[] = {
{
.name = "gpnvm",
.handler = at91sam7_handle_gpnvm_command,
.mode = COMMAND_EXEC,
.help = "set or clear one General Purpose Non-Volatile Memory "
"(gpnvm) bit",
.usage = "bitnum ('set'|'clear')",
},
COMMAND_REGISTRATION_DONE
};