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ARMv7: help/usage updates

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Provide helptext which was sometimes missing; update some of it
to be more accurate.

Usage syntax messages have the same EBNF as the User's Guide;
there should be no angle brackets in either place.

Don't use "&function"; functions are like arrays, their address
is their name.  Shrink some overlong lines, remove some empties.

Add a couple comments about things that should change:  those
extra TCK cycles for MEM-AP reads are in the wrong place (that
might explain some problems we've seen); the DAP command tables
should be shared, not copied.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2010-01-07 15:52:38 -08:00
parent e19fe9ad09
commit 17921f51ab
6 changed files with 69 additions and 41 deletions
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35
src/target/armv7a.c
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@@ -174,40 +174,49 @@ COMMAND_HANDLER(handle_dap_info_command)
return dap_info_command(CMD_CTX, swjdp, apsel);
}
/* FIXME this table should be part of generic DAP support, and
* be shared by the ARMv7-A/R and ARMv7-M support ...
*/
static const struct command_registration armv7a_exec_command_handlers[] = {
{
.name = "info",
.handler = &handle_dap_info_command,
.handler = handle_dap_info_command,
.mode = COMMAND_EXEC,
.help = "dap info for ap [num], "
"default currently selected AP",
.help = "display ROM table for MEM-AP "
"(default currently selected AP)",
.usage = "[ap_num]",
},
{
.name = "apsel",
.handler = &handle_dap_apsel_command,
.handler = handle_dap_apsel_command,
.mode = COMMAND_EXEC,
.help = "select a different AP [num] (default 0)",
.help = "Set the currently selected AP (default 0) "
"and display the result",
.usage = "[ap_num]",
},
{
.name = "apid",
.handler = &handle_dap_apid_command,
.handler = handle_dap_apid_command,
.mode = COMMAND_EXEC,
.help = "return id reg from AP [num], "
"default currently selected AP",
.help = "return ID register from AP "
"(default currently selected AP)",
.usage = "[ap_num]",
},
{
.name = "baseaddr",
.handler = &handle_dap_baseaddr_command,
.handler = handle_dap_baseaddr_command,
.mode = COMMAND_EXEC,
.help = "return debug base address from AP [num], "
"default currently selected AP",
.help = "return debug base address from MEM-AP "
"(default currently selected AP)",
.usage = "[ap_num]",
},
{
.name = "memaccess",
.handler = &handle_dap_memaccess_command,
.handler = handle_dap_memaccess_command,
.mode = COMMAND_EXEC,
.help = "set/get number of extra tck for mem-ap memory "
.help = "set/get number of extra tck for MEM-AP memory "
"bus access [0-255]",
.usage = "[cycles]",
},
COMMAND_REGISTRATION_DONE
};