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-rw-r--r--src/target/riscv/riscv-013.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/src/target/riscv/riscv-013.c b/src/target/riscv/riscv-013.c
index 6a71298..8dfdde4 100644
--- a/src/target/riscv/riscv-013.c
+++ b/src/target/riscv/riscv-013.c
@@ -563,7 +563,7 @@ static int execute_abstract_command(struct target *target, uint32_t command)
command, errors[get_field(abstractcs, DMI_ABSTRACTCS_CMDERR)],
abstractcs);
// Clear the error.
- dmi_write(target, DMI_ABSTRACTCS, 0);
+ dmi_write(target, DMI_ABSTRACTCS, DMI_ABSTRACTCS_CMDERR);
return ERROR_FAIL;
}
@@ -1858,7 +1858,6 @@ static int read_memory(struct target *target, uint32_t address,
abstract_register_size(xlen(target)) | reg_number_to_no(S1)) != ERROR_OK) {
return ERROR_FAIL;
}
- dmi_write(target, DMI_ABSTRACTCS, DMI_ABSTRACTCS_CMDERR);
uint32_t abstractcs;
for (uint32_t i = 0; i < count; i++) {
@@ -1891,11 +1890,11 @@ static int read_memory(struct target *target, uint32_t address,
}
}
dmi_write(target, DMI_ABSTRACTAUTO, 0);
- dmi_write(target, DMI_ABSTRACTCS, DMI_ABSTRACTCS_CMDERR);
- abstractcs = dmi_read(target, DMI_ABSTRACTCS);
+ abstractcs = dmi_read(target, DMI_ABSTRACTCS);
unsigned cmderr = get_field(abstractcs, DMI_ABSTRACTCS_CMDERR);
if (cmderr == CMDERR_BUSY) {
- dmi_write(target, DMI_ABSTRACTCS, 0);
+ // Clear the error and wait longer.
+ dmi_write(target, DMI_ABSTRACTCS, DMI_ABSTRACTCS_CMDERR);
increase_ac_busy_delay(target);
} else if (cmderr) {
LOG_ERROR("cmderr=%d", get_field(abstractcs, DMI_ABSTRACTCS_CMDERR));
@@ -1980,9 +1979,6 @@ static int write_memory(struct target *target, uint32_t address,
AC_ACCESS_REGISTER_WRITE | AC_ACCESS_REGISTER_POSTEXEC
| abstract_register_size(xlen(target)) |
reg_number_to_no(S1), true);
- scans_add_dmi_write(scans, DMI_ABSTRACTCS,
- DMI_ABSTRACTCS_CMDERR,
- false);
scans_add_dmi_write(scans, DMI_ABSTRACTAUTO,
0x1 << DMI_ABSTRACTAUTO_AUTOEXECDATA_OFFSET,
false);
@@ -2001,7 +1997,7 @@ static int write_memory(struct target *target, uint32_t address,
uint32_t abstractcs = dmi_read(target, DMI_ABSTRACTCS);
unsigned cmderr = get_field(abstractcs, DMI_ABSTRACTCS_CMDERR);
if (cmderr == CMDERR_BUSY) {
- dmi_write(target, DMI_ABSTRACTCS, 0);
+ dmi_write(target, DMI_ABSTRACTCS, DMI_ABSTRACTCS_CMDERR);
increase_ac_busy_delay(target);
} else if (cmderr) {
LOG_ERROR("cmderr=%d", get_field(abstractcs, DMI_ABSTRACTCS_CMDERR));