#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 */
#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)
+
typedef struct mips_ejtag_s
{
int chain_pos;
u32 impcode;
-// int use_dma;
+ /*int use_dma;*/
u32 ejtag_ctrl;
} mips_ejtag_t;