#ifndef MIPS_EJTAG
#define MIPS_EJTAG
-#include "types.h"
-#include "jtag.h"
+#include <jtag/jtag.h>
/* tap instructions */
#define EJTAG_INST_IDCODE 0x01
#define EJTAG_INST_TCBDATA 0x12
#define EJTAG_INST_BYPASS 0xFF
-/* debug control register bits ECR */
+/* microchip PIC32MX specific instructions */
+#define MTAP_SW_MTAP 0x04
+#define MTAP_SW_ETAP 0x05
+#define MTAP_COMMAND 0x07
+
+/* 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_CTRL_TIF (1 << 2)
#define EJTAG_CTRL_BRKST (1 << 3)
#define EJTAG_DEBUG_DBD (1 << 31)
/* implementaion register bits */
+#define EJTAG_IMP_R3K (1 << 28)
+#define EJTAG_IMP_DINT (1 << 24)
#define EJTAG_IMP_NODMA (1 << 14)
#define EJTAG_IMP_MIPS16 (1 << 16)
+#define EJTAG_DCR_MIPS64 (1 << 0)
-/* breakpoint support */
+/* Debug Control Register DCR */
#define EJTAG_DCR 0xFF300000
+#define EJTAG_DCR_ENM (1 << 29)
+#define EJTAG_DCR_DB (1 << 17)
+#define EJTAG_DCR_IB (1 << 16)
+#define EJTAG_DCR_INTE (1 << 4)
+
+/* breakpoint support */
#define EJTAG_IBS 0xFF301000
#define EJTAG_IBA1 0xFF301100
#define EJTAG_DBS 0xFF302000
#define EJTAG_DBA1 0xFF302100
+#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 {
+ struct jtag_tap *tap;
+ uint32_t impcode;
+ uint32_t idcode;
+ uint32_t ejtag_ctrl;
+ int fast_access_save;
+};
+
+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_idcode(struct mips_ejtag *ejtag_info, uint32_t *idcode);
+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_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);
-typedef struct mips_ejtag_s
+static inline void mips_le_to_h_u32(jtag_callback_data_t arg)
{
- jtag_tap_t *tap;
- u32 impcode;
- /*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_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);
-extern int mips_ejtag_get_idcode(mips_ejtag_t *ejtag_info, u32 *idcode, in_handler_t handler);
-extern int mips_ejtag_drscan_32(mips_ejtag_t *ejtag_info, u32 *data);
-
-extern int mips_ejtag_init(mips_ejtag_t *ejtag_info);
-extern int mips_ejtag_config_step(mips_ejtag_t *ejtag_info, int enable_step);
-extern int mips_ejtag_read_debug(mips_ejtag_t *ejtag_info, u32* debug_reg);
+ uint8_t *in = (uint8_t *)arg;
+ *((uint32_t *)arg) = le_to_h_u32(in);
+}
#endif /* MIPS_EJTAG */