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riscv-openocd
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added t/nsrst_assert_width commands 

git-svn-id: svn://svn.berlios.de/openocd/trunk@2768 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-09-29 06:07:50 +00:00
parent e3a0647558
commit c5949a03a7
3 changed files with 72 additions and 0 deletions
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26
src/jtag/core.c
View File

@ -93,6 +93,8 @@ static int jtag_verify = 1;
/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
static int jtag_nsrst_delay = 0; /* default to no nSRST delay */
static int jtag_ntrst_delay = 0; /* default to no nTRST delay */
static int jtag_nsrst_assert_width = 0; /* width of assertion */
static int jtag_ntrst_assert_width = 0; /* width of assertion */
typedef struct jtag_event_callback_s
{
@ -661,7 +663,11 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst)
if (jtag_srst != new_srst) {
jtag_srst = new_srst;
if (jtag_srst)
{
LOG_DEBUG("SRST line asserted");
if (jtag_nsrst_assert_width)
jtag_add_sleep(jtag_nsrst_assert_width * 1000);
}
else {
LOG_DEBUG("SRST line released");
if (jtag_nsrst_delay)
@ -685,6 +691,8 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst)
if (jtag_trst) {
LOG_DEBUG("TRST line asserted");
tap_set_state(TAP_RESET);
if (jtag_ntrst_assert_width)
jtag_add_sleep(jtag_ntrst_assert_width * 1000);
} else {
LOG_DEBUG("TRST line released");
if (jtag_ntrst_delay)
@ -1480,3 +1488,21 @@ unsigned jtag_get_ntrst_delay(void)
{
return jtag_ntrst_delay;
}
void jtag_set_nsrst_assert_width(unsigned delay)
{
jtag_nsrst_assert_width = delay;
}
unsigned jtag_get_nsrst_assert_width(void)
{
return jtag_nsrst_assert_width;
}
void jtag_set_ntrst_assert_width(unsigned delay)
{
jtag_ntrst_assert_width = delay;
}
unsigned jtag_get_ntrst_assert_width(void)
{
return jtag_ntrst_assert_width;
}

6
src/jtag/jtag.h
View File

@ -289,6 +289,12 @@ unsigned jtag_get_nsrst_delay(void);
void jtag_set_ntrst_delay(unsigned delay);
unsigned jtag_get_ntrst_delay(void);
void jtag_set_nsrst_assert_width(unsigned delay);
unsigned jtag_get_nsrst_assert_width(void);
void jtag_set_ntrst_assert_width(unsigned delay);
unsigned jtag_get_ntrst_assert_width(void);
/// @returns The current state of TRST.
int jtag_get_trst(void);
/// @returns The current state of SRST.

40
src/jtag/tcl.c
View File

@ -61,6 +61,8 @@ static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *c
static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_jtag_nsrst_assert_width_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_jtag_ntrst_assert_width_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
@ -619,6 +621,10 @@ int jtag_register_commands(struct command_context_s *cmd_ctx)
COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
register_command(cmd_ctx, NULL, "jtag_nsrst_assert_width", handle_jtag_nsrst_assert_width_command,
COMMAND_ANY, "jtag_nsrst_assert_width <ms> - delay after asserting srst in ms");
register_command(cmd_ctx, NULL, "jtag_ntrst_assert_width", handle_jtag_ntrst_assert_width_command,
COMMAND_ANY, "jtag_ntrst_assert_width <ms> - delay after asserting trst in ms");
register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
COMMAND_EXEC, "print current scan chain configuration");
@ -979,6 +985,40 @@ static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx,
return ERROR_OK;
}
static int handle_jtag_nsrst_assert_width_command(struct command_context_s *cmd_ctx,
char *cmd, char **args, int argc)
{
if (argc > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
if (argc == 1)
{
unsigned delay;
int retval = parse_uint(args[0], &delay);
if (ERROR_OK != retval)
return retval;
jtag_set_nsrst_assert_width(delay);
}
command_print(cmd_ctx, "jtag_nsrst_assert_width: %u", jtag_get_nsrst_assert_width());
return ERROR_OK;
}
static int handle_jtag_ntrst_assert_width_command(struct command_context_s *cmd_ctx,
char *cmd, char **args, int argc)
{
if (argc > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
if (argc == 1)
{
unsigned delay;
int retval = parse_uint(args[0], &delay);
if (ERROR_OK != retval)
return retval;
jtag_set_ntrst_assert_width(delay);
}
command_print(cmd_ctx, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
return ERROR_OK;
}
static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int retval = ERROR_OK;