#ifndef MIPS_EJTAG
#define MIPS_EJTAG
-#include "types.h"
#include "jtag.h"
+/* tap instructions */
#define EJTAG_INST_IDCODE 0x01
#define EJTAG_INST_IMPCODE 0x03
#define EJTAG_INST_ADDRESS 0x08
#define EJTAG_INST_TCBDATA 0x12
#define EJTAG_INST_BYPASS 0xFF
+/* debug control register bits ECR */
#define EJTAG_CTRL_TOF (1 << 1)
#define EJTAG_CTRL_TIF (1 << 2)
#define EJTAG_CTRL_BRKST (1 << 3)
#define EJTAG_DEBUG_DM (1 << 30)
#define EJTAG_DEBUG_DBD (1 << 31)
+/* implementaion register bits */
+#define EJTAG_IMP_NODMA (1 << 14)
+#define EJTAG_IMP_MIPS16 (1 << 16)
+
+/* breakpoint support */
+#define EJTAG_DCR 0xFF300000
+#define EJTAG_IBS 0xFF301000
+#define EJTAG_IBA1 0xFF301100
+#define EJTAG_DBS 0xFF302000
+#define EJTAG_DBA1 0xFF302100
+
typedef struct mips_ejtag_s
{
- int chain_pos;
+ jtag_tap_t *tap;
u32 impcode;
-// int use_dma;
+ u32 idcode;
+ /*int use_dma;*/
u32 ejtag_ctrl;
} mips_ejtag_t;
-extern int mips_ejtag_set_instr(mips_ejtag_t *ejtag_info, int new_instr, in_handler_t handler);
+extern int mips_ejtag_set_instr(mips_ejtag_t *ejtag_info, int new_instr, void *delete_me_and_submit_patch);
extern int mips_ejtag_enter_debug(mips_ejtag_t *ejtag_info);
extern int mips_ejtag_exit_debug(mips_ejtag_t *ejtag_info, int enable_interrupts);
extern int mips_ejtag_get_impcode(mips_ejtag_t *ejtag_info, u32 *impcode, in_handler_t handler);