int mips_ejtag_get_idcode(struct mips_ejtag *ejtag_info, uint32_t *idcode)
{
struct scan_field field;
+ uint8_t r[4];
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IDCODE);
field.num_bits = 32;
field.out_value = NULL;
- field.in_value = (void*)idcode;
+ field.in_value = r;
jtag_add_dr_scan(ejtag_info->tap, 1, &field, TAP_IDLE);
LOG_ERROR("register read failed");
return retval;
}
+
+ *idcode = buf_get_u32(field.in_value, 0, 32);
+
return ERROR_OK;
}
static int mips_ejtag_get_impcode(struct mips_ejtag *ejtag_info, uint32_t *impcode)
{
struct scan_field field;
+ uint8_t r[4];
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IMPCODE);
field.num_bits = 32;
field.out_value = NULL;
- field.in_value = (void*)impcode;
+ field.in_value = r;
jtag_add_dr_scan(ejtag_info->tap, 1, &field, TAP_IDLE);
LOG_ERROR("register read failed");
return retval;
}
+
+ *impcode = buf_get_u32(field.in_value, 0, 32);
+
return ERROR_OK;
}
return ERROR_OK;
}
+void mips_ejtag_drscan_32_out(struct mips_ejtag *ejtag_info, uint32_t data)
+{
+ uint8_t t[4];
+ struct jtag_tap *tap;
+ tap = ejtag_info->tap;
+ assert(tap != NULL);
+
+ struct scan_field field;
+
+ field.num_bits = 32;
+ field.out_value = t;
+ buf_set_u32(t, 0, field.num_bits, data);
+
+ field.in_value = NULL;
+
+ jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
+}
+
int mips_ejtag_drscan_8(struct mips_ejtag *ejtag_info, uint32_t *data)
{
struct jtag_tap *tap;
*data = buf_get_u32(field.in_value, 0, 32);
- keep_alive();
-
return ERROR_OK;
}
+void mips_ejtag_drscan_8_out(struct mips_ejtag *ejtag_info, uint8_t data)
+{
+ struct jtag_tap *tap;
+ tap = ejtag_info->tap;
+ assert(tap != NULL);
+
+ struct scan_field field;
+
+ field.num_bits = 8;
+ field.out_value = &data;
+ field.in_value = NULL;
+
+ jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
+}
+
static int mips_ejtag_step_enable(struct mips_ejtag *ejtag_info)
{
static const uint32_t code[] = {
MIPS32_MFC0(1,31,0), /* move COP0 DeSave to $1 */
};
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
- 0, NULL, 0, NULL, 1);
-
- return ERROR_OK;
+ return mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
+ 0, NULL, 0, NULL, 1);
}
static int mips_ejtag_step_disable(struct mips_ejtag *ejtag_info)
MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */
};
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ return mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
0, NULL, 0, NULL, 1);
-
- return ERROR_OK;
}
int mips_ejtag_config_step(struct mips_ejtag *ejtag_info, int enable_step)
inst = MIPS32_DRET;
/* execute our dret instruction */
- mips32_pracc_exec(ejtag_info, 1, &inst, 0, NULL, 0, NULL, 0);
-
- return ERROR_OK;
+ return mips32_pracc_exec(ejtag_info, 1, &inst, 0, NULL, 0, NULL, 0);
}
int mips_ejtag_read_debug(struct mips_ejtag *ejtag_info, uint32_t* debug_reg)
MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */
};
- mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \
+ return mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
0, NULL, 1, debug_reg, 1);
-
- return ERROR_OK;
}
int mips_ejtag_init(struct mips_ejtag *ejtag_info)
{
uint32_t ejtag_version;
+ int retval;
- mips_ejtag_get_impcode(ejtag_info, &ejtag_info->impcode);
+ retval = mips_ejtag_get_impcode(ejtag_info, &ejtag_info->impcode);
+ if (retval != ERROR_OK)
+ return retval;
LOG_DEBUG("impcode: 0x%8.8" PRIx32 "", ejtag_info->impcode);
/* get ejtag version */
int mips_ejtag_fastdata_scan(struct mips_ejtag *ejtag_info, int write_t, uint32_t *data)
{
struct jtag_tap *tap;
+
tap = ejtag_info->tap;
assert(tap != NULL);
}
else
{
- fields[1].in_value = (uint8_t *) data;
+ fields[1].in_value = (void *) data;
}
jtag_add_dr_scan(tap, 2, fields, TAP_IDLE);
+
+ if ( (!write_t) && (data) )
+ jtag_add_callback(mips_le_to_h_u32,
+ (jtag_callback_data_t) data);
+
keep_alive();
return ERROR_OK;