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- add cortex_m3 variant luminary to fix reset issue with asserting SRST

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- https://lists.berlios.de/pipermail/openocd-development/2008-April/002022.html for details

git-svn-id: svn://svn.berlios.de/openocd/trunk@624 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak
2008-04-28 20:05:17 +00:00
parent cab29a63de
commit f2e10a6050
4 changed files with 34 additions and 6 deletions
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28
src/target/cortex_m3.c
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@@ -706,13 +706,26 @@ int cortex_m3_assert_reset(target_t *target)
ahbap_write_system_atomic_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET );
}
if (jtag_reset_config & RESET_SRST_PULLS_TRST)
/* following hack is to handle luminary reset
* when srst is asserted the luminary device seesm to also clear the debug registers
* which does not match the armv7 debug TRM */
if (strcmp(cortex_m3->variant, "luminary") == 0)
{
jtag_add_reset(1, 1);
/* this causes the luminary device to reset using the watchdog */
ahbap_write_system_atomic_u32(swjdp, NVIC_AIRCR, AIRCR_VECTKEY | AIRCR_SYSRESETREQ );
LOG_DEBUG("Using Luminary Reset: SYSRESETREQ");
}
else
{
jtag_add_reset(0, 1);
if (jtag_reset_config & RESET_SRST_PULLS_TRST)
{
jtag_add_reset(1, 1);
}
else
{
jtag_add_reset(0, 1);
}
}
target->state = TARGET_RESET;
@@ -1438,6 +1451,15 @@ int cortex_m3_init_arch_info(target_t *target, cortex_m3_common_t *cortex_m3, in
armv7m->pre_restore_context = NULL;
armv7m->post_restore_context = NULL;
if (variant)
{
cortex_m3->variant = strdup(variant);
}
else
{
cortex_m3->variant = strdup("");
}
armv7m_init_arch_info(target, armv7m);
armv7m->arch_info = cortex_m3;
armv7m->load_core_reg_u32 = cortex_m3_load_core_reg_u32;