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riscv-openocd
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tinkered a bit with performance for Cortex flash programming. Mainly make it easier to profile as a start. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@1380 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-02-23 21:26:11 +00:00
parent ba9d608df3
commit 39d80bad9b
2 changed files with 40 additions and 22 deletions
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41
src/target/cortex_swjdp.c
View File

@ -5,6 +5,9 @@
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
* Copyright (C) 2009 by Oyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
@ -178,7 +181,7 @@ int swjdp_transaction_endcheck(swjdp_common_t *swjdp)
int retval;
u32 ctrlstat;
keep_alive();
/* too expensive to call keep_alive() here */
/* Danger!!!! BROKEN!!!! */
scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
@ -199,27 +202,33 @@ int swjdp_transaction_endcheck(swjdp_common_t *swjdp)
swjdp->ack = swjdp->ack & 0x7;
long long then=timeval_ms();
while (swjdp->ack != 2)
if (swjdp->ack != 2)
{
if (swjdp->ack == 1)
long long then=timeval_ms();
while (swjdp->ack != 2)
{
if ((timeval_ms()-then) > 1000)
if (swjdp->ack == 1)
{
LOG_WARNING("Timeout (1000ms) waiting for ACK = OK/FAULT in SWJDP transaction");
if ((timeval_ms()-then) > 1000)
{
LOG_WARNING("Timeout (1000ms) waiting for ACK = OK/FAULT in SWJDP transaction");
return ERROR_JTAG_DEVICE_ERROR;
}
}
else
{
LOG_WARNING("Invalid ACK in SWJDP transaction");
return ERROR_JTAG_DEVICE_ERROR;
}
}
else
{
LOG_WARNING("Invalid ACK in SWJDP transaction");
return ERROR_JTAG_DEVICE_ERROR;
}
scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
swjdp->ack = swjdp->ack & 0x7;
scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat);
if ((retval=jtag_execute_queue())!=ERROR_OK)
return retval;
swjdp->ack = swjdp->ack & 0x7;
}
} else
{
/* common code path avoids fn to timeval_ms() */
}
/* Check for STICKYERR and STICKYORUN */

21
src/target/target.c
View File

@ -1700,32 +1700,41 @@ int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char
return target_wait_state(target, TARGET_HALTED, ms);
}
/* wait for target state to change. The trick here is to have a low
* latency for short waits and not to suck up all the CPU time
* on longer waits.
*
* After 500ms, keep_alive() is invoked
*/
int target_wait_state(target_t *target, enum target_state state, int ms)
{
int retval;
struct timeval timeout, now;
long long then=0, cur;
int once=1;
gettimeofday(&timeout, NULL);
timeval_add_time(&timeout, 0, ms * 1000);
for (;;)
{
if ((retval=target_poll(target))!=ERROR_OK)
return retval;
keep_alive();
if (target->state == state)
{
break;
}
cur = timeval_ms();
if (once)
{
once=0;
then = timeval_ms();
LOG_DEBUG("waiting for target %s...",
Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
}
gettimeofday(&now, NULL);
if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
if (cur-then>500)
{
keep_alive();
}
if ((cur-then)>ms)
{
LOG_ERROR("timed out while waiting for target %s",
Jim_Nvp_value2name_simple(nvp_target_state,state)->name);