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-rw-r--r--src/target/cortex_m3.c20
-rw-r--r--src/target/cortex_swjdp.c10
-rw-r--r--src/target/target/stm32.cfg2
3 files changed, 25 insertions, 7 deletions
diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c
index 6bdb1df6..b330fee3 100644
--- a/src/target/cortex_m3.c
+++ b/src/target/cortex_m3.c
@@ -51,6 +51,7 @@ int cortex_m3_quit();
int cortex_m3_load_core_reg_u32(target_t *target, enum armv7m_regtype type, u32 num, u32 *value);
int cortex_m3_store_core_reg_u32(target_t *target, enum armv7m_regtype type, u32 num, u32 value);
int cortex_m3_target_request_data(target_t *target, u32 size, u8 *buffer);
+int cortex_m3_examine(struct command_context_s *cmd_ctx, struct target_s *target);
target_type_t cortexm3_target =
{
@@ -86,6 +87,7 @@ target_type_t cortexm3_target =
.register_commands = cortex_m3_register_commands,
.target_command = cortex_m3_target_command,
.init_target = cortex_m3_init_target,
+ .examine = cortex_m3_examine,
.quit = cortex_m3_quit
};
@@ -1227,6 +1229,13 @@ void cortex_m3_build_reg_cache(target_t *target)
int cortex_m3_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
{
+ cortex_m3_build_reg_cache(target);
+ return ERROR_OK;
+}
+
+int cortex_m3_examine(struct command_context_s *cmd_ctx, struct target_s *target)
+{
+ int retval;
u32 cpuid, fpcr, dwtcr, ictr;
int i;
@@ -1234,12 +1243,16 @@ int cortex_m3_init_target(struct command_context_s *cmd_ctx, struct target_s *ta
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+
+ target->type->examined = 1;
- cortex_m3_build_reg_cache(target);
- ahbap_debugport_init(swjdp);
+ if ((retval=ahbap_debugport_init(swjdp))!=ERROR_OK)
+ return retval;
/* Read from Device Identification Registers */
- target_read_u32(target, CPUID, &cpuid);
+ if ((retval=target_read_u32(target, CPUID, &cpuid))!=ERROR_OK)
+ return retval;
+
if (((cpuid >> 4) & 0xc3f) == 0xc23)
LOG_DEBUG("CORTEX-M3 processor detected");
LOG_DEBUG("cpuid: 0x%8.8x", cpuid);
@@ -1280,6 +1293,7 @@ int cortex_m3_init_target(struct command_context_s *cmd_ctx, struct target_s *ta
return ERROR_OK;
}
+
int cortex_m3_quit()
{
diff --git a/src/target/cortex_swjdp.c b/src/target/cortex_swjdp.c
index d1983ec5..dc50fea1 100644
--- a/src/target/cortex_swjdp.c
+++ b/src/target/cortex_swjdp.c
@@ -941,6 +941,7 @@ int ahbap_debugport_init(swjdp_common_t *swjdp)
u32 idreg, romaddr, dummy;
u32 ctrlstat;
int cnt = 0;
+ int retval;
LOG_DEBUG(" ");
@@ -955,14 +956,16 @@ int ahbap_debugport_init(swjdp_common_t *swjdp)
swjdp_write_dpacc(swjdp, swjdp->dp_ctrl_stat, DP_CTRL_STAT);
swjdp_read_dpacc(swjdp, &ctrlstat, DP_CTRL_STAT);
- jtag_execute_queue();
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
+ return retval;
/* Check that we have debug power domains activated */
while (!(ctrlstat & CDBGPWRUPACK) && (cnt++ < 10))
{
LOG_DEBUG("swjdp: wait CDBGPWRUPACK");
swjdp_read_dpacc(swjdp, &ctrlstat, DP_CTRL_STAT);
- jtag_execute_queue();
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
+ return retval;
usleep(10000);
}
@@ -970,7 +973,8 @@ int ahbap_debugport_init(swjdp_common_t *swjdp)
{
LOG_DEBUG("swjdp: wait CSYSPWRUPACK");
swjdp_read_dpacc(swjdp, &ctrlstat, DP_CTRL_STAT);
- jtag_execute_queue();
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
+ return retval;
usleep(10000);
}
diff --git a/src/target/target/stm32.cfg b/src/target/target/stm32.cfg
index 8a93087d..371e4ab3 100644
--- a/src/target/target/stm32.cfg
+++ b/src/target/target/stm32.cfg
@@ -11,7 +11,7 @@ jtag_device 5 0x1 0x1 0x1e
#target <type> <startup mode>
#target arm7tdmi <reset mode> <chainpos> <endianness> <variant>
-target cortex_m3 little reset_init 0
+target cortex_m3 little reset_halt 0
run_and_halt_time 0 30
working_area 0 0x20000000 16384 nobackup