from at91sam4.c:3219
static const struct command_registration at91sam4_exec_command_handlers[] = {
{
.name = "gpnvm",
.handler = sam4_handle_gpnvm_command,
.mode = COMMAND_EXEC,
.usage = "[('clr'|'set'|'show') bitnum]",
.help = "Without arguments, shows all bits in the gpnvm "
"register. Otherwise, clears, sets, or shows one "
"General Purpose Non-Volatile Memory (gpnvm) bit.",
},
{
.name = "info",
.handler = sam4_handle_info_command,
.mode = COMMAND_EXEC,
.help = "Print information about the current at91sam4 chip "
"and its flash configuration.",
.usage = "",
},
{
.name = "slowclk",
.handler = sam4_handle_slowclk_command,
.mode = COMMAND_EXEC,
.usage = "[clock_hz]",
.help = "Display or set the slowclock frequency "
"(default 32768 Hz).",
},
COMMAND_REGISTRATION_DONE
};