* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#ifndef MIPS_EJTAG
/* microchip specific cmds */
#define MCHP_ASERT_RST 0xd1
#define MCHP_DE_ASSERT_RST 0xd0
+#define MCHP_ERASE 0xfc
+#define MCHP_STATUS 0x00
/* ejtag control register bits ECR */
#define EJTAG_CTRL_TOF (1 << 1)
#define EJTAG_DCR_DB (1 << 17)
#define EJTAG_DCR_IB (1 << 16)
#define EJTAG_DCR_INTE (1 << 4)
+#define EJTAG_DCR_MP (1 << 2)
/* breakpoint support */
-#define EJTAG_IBS 0xFF301000
-#define EJTAG_IBA1 0xFF301100
-#define EJTAG_DBS 0xFF302000
-#define EJTAG_DBA1 0xFF302100
+/* EJTAG_V20_* was tested on Broadcom BCM7401
+ * and may or will differ with other hardware. For example EZ4021-FC. */
+#define EJTAG_V20_IBS 0xFF300004
+#define EJTAG_V20_IBA0 0xFF300100
+#define EJTAG_V20_IBC_OFFS 0x4 /* IBC Offset */
+#define EJTAG_V20_IBM_OFFS 0x8
+#define EJTAG_V20_IBAn_STEP 0x10 /* Offset for next channel */
+#define EJTAG_V20_DBS 0xFF30008
+#define EJTAG_V20_DBA0 0xFF300200
+#define EJTAG_V20_DBC_OFFS 0x4
+#define EJTAG_V20_DBM_OFFS 0x8
+#define EJTAG_V20_DBV_OFFS 0xc
+#define EJTAG_V20_DBAn_STEP 0x10
+
+#define EJTAG_V25_IBS 0xFF301000
+#define EJTAG_V25_IBA0 0xFF301100
+#define EJTAG_V25_IBM_OFFS 0x8
+#define EJTAG_V25_IBASID_OFFS 0x10
+#define EJTAG_V25_IBC_OFFS 0x18
+#define EJTAG_V25_IBAn_STEP 0x100
+#define EJTAG_V25_DBS 0xFF302000
+#define EJTAG_V25_DBA0 0xFF302100
+#define EJTAG_V25_DBM_OFFS 0x8
+#define EJTAG_V25_DBASID_OFFS 0x10
+#define EJTAG_V25_DBC_OFFS 0x18
+#define EJTAG_V25_DBV_OFFS 0x20
+#define EJTAG_V25_DBAn_STEP 0x100
+
#define EJTAG_DBCn_NOSB (1 << 13)
#define EJTAG_DBCn_NOLB (1 << 12)
#define EJTAG_DBCn_BLM_MASK 0xff
#define EJTAG_DBCn_BLM_SHIFT 4
#define EJTAG_DBCn_BE (1 << 0)
-struct mips_ejtag
-{
+#define EJTAG_VERSION_20 0
+#define EJTAG_VERSION_25 1
+#define EJTAG_VERSION_26 2
+#define EJTAG_VERSION_31 3
+#define EJTAG_VERSION_41 4
+#define EJTAG_VERSION_51 5
+
+struct mips_ejtag {
struct jtag_tap *tap;
uint32_t impcode;
uint32_t idcode;
uint32_t ejtag_ctrl;
+ int fast_access_save;
+ uint32_t reg8;
+ uint32_t reg9;
+ unsigned scan_delay;
+ int mode;
+ unsigned int ejtag_version;
+
+ /* Memory-Mapped Registers. This addresses are not same on different
+ * EJTAG versions. */
+ uint32_t ejtag_ibs_addr; /* Instruction Address Break Status */
+ uint32_t ejtag_iba0_addr; /* IAB channel 0 */
+ uint32_t ejtag_ibc_offs; /* IAB Control offset */
+ uint32_t ejtag_ibm_offs; /* IAB Mask offset */
+ uint32_t ejtag_ibasid_offs; /* IAB ASID (4Kc) */
+
+ uint32_t ejtag_dbs_addr; /* Data Address Break Status Register */
+ uint32_t ejtag_dba0_addr; /* DAB channel 0 */
+ uint32_t ejtag_dbc_offs; /* DAB Control offset */
+ uint32_t ejtag_dbm_offs; /* DAB Mask offset */
+ uint32_t ejtag_dbv_offs; /* DAB Value offset */
+ uint32_t ejtag_dbasid_offs; /* DAB ASID (4Kc) */
+
+ uint32_t ejtag_iba_step_size;
+ uint32_t ejtag_dba_step_size; /* siez of step till next
+ * *DBAn register. */
};
-int mips_ejtag_set_instr(struct mips_ejtag *ejtag_info,
+void mips_ejtag_set_instr(struct mips_ejtag *ejtag_info,
int new_instr);
int mips_ejtag_enter_debug(struct mips_ejtag *ejtag_info);
int mips_ejtag_exit_debug(struct mips_ejtag *ejtag_info);
-int mips_ejtag_get_impcode(struct mips_ejtag *ejtag_info, uint32_t *impcode);
int mips_ejtag_get_idcode(struct mips_ejtag *ejtag_info, uint32_t *idcode);
+void mips_ejtag_add_scan_96(struct mips_ejtag *ejtag_info,
+ uint32_t ctrl, uint32_t data, uint8_t *in_scan_buf);
+void mips_ejtag_drscan_32_out(struct mips_ejtag *ejtag_info, uint32_t data);
int mips_ejtag_drscan_32(struct mips_ejtag *ejtag_info, uint32_t *data);
+void mips_ejtag_drscan_8_out(struct mips_ejtag *ejtag_info, uint8_t data);
int mips_ejtag_drscan_8(struct mips_ejtag *ejtag_info, uint32_t *data);
-int mips_ejtag_fastdata_scan(struct mips_ejtag *ejtag_info, int write, uint32_t *data);
+int mips_ejtag_fastdata_scan(struct mips_ejtag *ejtag_info, int write_t, uint32_t *data);
int mips_ejtag_init(struct mips_ejtag *ejtag_info);
int mips_ejtag_config_step(struct mips_ejtag *ejtag_info, int enable_step);
-int mips_ejtag_read_debug(struct mips_ejtag *ejtag_info, uint32_t* debug_reg);
+
+static inline void mips_le_to_h_u32(jtag_callback_data_t arg)
+{
+ uint8_t *in = (uint8_t *)arg;
+ *((uint32_t *)arg) = le_to_h_u32(in);
+}
#endif /* MIPS_EJTAG */