diff --git a/src/target/mips32_dmaacc.c b/src/target/mips32_dmaacc.c
index aa36d2cf6e05ad653d97e770f0b19d142090f33b..7d3c2dabab13774120a03f575ffca295f3c1d0d6 100644
--- a/src/target/mips32_dmaacc.c
+++ b/src/target/mips32_dmaacc.c
@@ -49,11 +49,11 @@ begin_ejtag_dma_read:
 
 	/* Setup Address */
 	v = addr;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Initiate DMA Read & set DSTRT */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DRWN | EJTAG_CTRL_DMA_WORD | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 
@@ -64,11 +64,11 @@ begin_ejtag_dma_read:
 	} while (ejtag_ctrl & EJTAG_CTRL_DSTRT);
 
 	/* Read Data */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ejtag_info, data);
 
 	/* Clear DMA & Check DERR */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 	if (ejtag_ctrl  & EJTAG_CTRL_DERR)
@@ -95,11 +95,11 @@ begin_ejtag_dma_read_h:
 
 	/* Setup Address */
 	v = addr;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Initiate DMA Read & set DSTRT */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DRWN | EJTAG_CTRL_DMA_HALFWORD | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 
@@ -110,11 +110,11 @@ begin_ejtag_dma_read_h:
 	} while (ejtag_ctrl & EJTAG_CTRL_DSTRT);
 
 	/* Read Data */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Clear DMA & Check DERR */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 	if (ejtag_ctrl  & EJTAG_CTRL_DERR)
@@ -147,11 +147,11 @@ begin_ejtag_dma_read_b:
 
 	/* Setup Address */
 	v = addr;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Initiate DMA Read & set DSTRT */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DRWN | EJTAG_CTRL_DMA_BYTE | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 
@@ -162,11 +162,11 @@ begin_ejtag_dma_read_b:
 	} while (ejtag_ctrl & EJTAG_CTRL_DSTRT);
 
 	/* Read Data */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Clear DMA & Check DERR */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 	if (ejtag_ctrl  & EJTAG_CTRL_DERR)
@@ -209,16 +209,16 @@ begin_ejtag_dma_write:
 
 	/* Setup Address */
 	v = addr;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Setup Data */
 	v = data;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Initiate DMA Write & set DSTRT */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_WORD | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 
@@ -229,7 +229,7 @@ begin_ejtag_dma_write:
 	} while (ejtag_ctrl & EJTAG_CTRL_DSTRT);
 
 	/* Clear DMA & Check DERR */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 	if (ejtag_ctrl  & EJTAG_CTRL_DERR)
@@ -260,16 +260,16 @@ begin_ejtag_dma_write_h:
 
 	/* Setup Address */
 	v = addr;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Setup Data */
 	v = data;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Initiate DMA Write & set DSTRT */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_HALFWORD | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 
@@ -280,7 +280,7 @@ begin_ejtag_dma_write_h:
 	} while (ejtag_ctrl & EJTAG_CTRL_DSTRT);
 
 	/* Clear DMA & Check DERR */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 	if (ejtag_ctrl  & EJTAG_CTRL_DERR)
@@ -312,16 +312,16 @@ begin_ejtag_dma_write_b:
 
 	/*  Setup Address*/
 	v = addr;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Setup Data */
 	v = data;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ejtag_info, &v);
 
 	/* Initiate DMA Write & set DSTRT */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_BYTE | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 
@@ -332,7 +332,7 @@ begin_ejtag_dma_write_b:
 	} while (ejtag_ctrl & EJTAG_CTRL_DSTRT);
 
 	/* Clear DMA & Check DERR */
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	ejtag_ctrl = ejtag_info->ejtag_ctrl;
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 	if (ejtag_ctrl & EJTAG_CTRL_DERR)
diff --git a/src/target/mips32_pracc.c b/src/target/mips32_pracc.c
index bcba0f1d0dc8d69d3bdb63c97077f4165e250b72..19ba886c5b72bf4d6a20e907a31b678e6fd1fd33 100644
--- a/src/target/mips32_pracc.c
+++ b/src/target/mips32_pracc.c
@@ -96,7 +96,7 @@ static int wait_for_pracc_rw(struct mips_ejtag *ejtag_info, uint32_t *ctrl)
 
 	while (1)
 	{
-		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 		ejtag_ctrl = ejtag_info->ejtag_ctrl;
 		mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 		if (ejtag_ctrl & EJTAG_CTRL_PRACC)
@@ -149,12 +149,12 @@ static int mips32_pracc_exec_read(struct mips32_pracc_context *ctx, uint32_t add
 	}
 
 	/* Send the data out */
-	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ctx->ejtag_info, &data);
 
 	/* Clear the access pending bit (let the processor eat!) */
 	ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
-	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL);
 	mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
 
 	jtag_add_clocks(5);
@@ -169,12 +169,12 @@ static int mips32_pracc_exec_write(struct mips32_pracc_context *ctx, uint32_t ad
 	int offset;
 	struct mips_ejtag *ejtag_info = ctx->ejtag_info;
 
-	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA, NULL);
+	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA);
 	mips_ejtag_drscan_32(ctx->ejtag_info, &data);
 
 	/* Clear access pending bit */
 	ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
-	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL);
 	mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
 
 	jtag_add_clocks(5);
@@ -230,7 +230,7 @@ int mips32_pracc_exec(struct mips_ejtag *ejtag_info, int code_len, const uint32_
 			return retval;
 
 		address = data = 0;
-		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 		mips_ejtag_drscan_32(ejtag_info, &address);
 
 		/* Check for read or write */
@@ -979,12 +979,12 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
 		if ((retval = wait_for_pracc_rw(ejtag_info, &ejtag_ctrl)) != ERROR_OK)
 			return retval;
 
-		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
+		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
 		mips_ejtag_drscan_32(ejtag_info, &jmp_code[i]);
 
 		/* Clear the access pending bit (let the processor eat!) */
 		ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
-		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 		mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 	}
 
@@ -993,7 +993,7 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
 
 	/* next fetch to dmseg should be in FASTDATA_AREA, check */
 	address = 0;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &address);
 
 	if (address != MIPS32_PRACC_FASTDATA_AREA)
@@ -1001,12 +1001,12 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
 
 	/* Send the load start address */
 	val = addr;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_FASTDATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_FASTDATA);
 	mips_ejtag_fastdata_scan(ejtag_info, 1, &val);
 
 	/* Send the load end address */
 	val = addr + (count - 1) * 4;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_FASTDATA, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_FASTDATA);
 	mips_ejtag_fastdata_scan(ejtag_info, 1, &val);
 
 	for (i = 0; i < count; i++)
@@ -1026,7 +1026,7 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
 		return retval;
 
 	address = 0;
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_ADDRESS);
 	mips_ejtag_drscan_32(ejtag_info, &address);
 
 	if (address != MIPS32_PRACC_TEXT)
diff --git a/src/target/mips_ejtag.c b/src/target/mips_ejtag.c
index 974c836dce35d1181ecb05ceedf124f30140901a..3ea23d40c9324362ddaed46d9e1765f71f3199c7 100644
--- a/src/target/mips_ejtag.c
+++ b/src/target/mips_ejtag.c
@@ -28,7 +28,7 @@
 #include "mips32.h"
 #include "mips_ejtag.h"
 
-int mips_ejtag_set_instr(struct mips_ejtag *ejtag_info, int new_instr, void *delete_me_and_submit_patch)
+int mips_ejtag_set_instr(struct mips_ejtag *ejtag_info, int new_instr)
 {
 	struct jtag_tap *tap;
 
@@ -58,7 +58,7 @@ int mips_ejtag_get_idcode(struct mips_ejtag *ejtag_info, uint32_t *idcode)
 
 	jtag_set_end_state(TAP_IDLE);
 
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IDCODE, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IDCODE);
 
 	field.num_bits = 32;
 	field.out_value = NULL;
@@ -80,7 +80,7 @@ int mips_ejtag_get_impcode(struct mips_ejtag *ejtag_info, uint32_t *impcode)
 
 	jtag_set_end_state(TAP_IDLE);
 
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IMPCODE, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_IMPCODE);
 
 	field.num_bits = 32;
 	field.out_value = NULL;
@@ -210,7 +210,7 @@ int mips_ejtag_enter_debug(struct mips_ejtag *ejtag_info)
 {
 	uint32_t ejtag_ctrl;
 	jtag_set_end_state(TAP_IDLE);
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 
 	/* set debug break bit */
 	ejtag_ctrl = ejtag_info->ejtag_ctrl | EJTAG_CTRL_JTAGBRK;
diff --git a/src/target/mips_ejtag.h b/src/target/mips_ejtag.h
index a086cd5ed6f094fad7022fed0d1e5918d0778f63..164edd01071869b744b32430f8850d56870273bf 100644
--- a/src/target/mips_ejtag.h
+++ b/src/target/mips_ejtag.h
@@ -129,7 +129,7 @@ struct mips_ejtag
 };
 
 int mips_ejtag_set_instr(struct mips_ejtag *ejtag_info,
-		int new_instr, void *delete_me_and_submit_patch);
+		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);
diff --git a/src/target/mips_m4k.c b/src/target/mips_m4k.c
index d1b458914b4a4725d696d38db9ed7f1ae675bd7a..5919f5b93ae9482d974fc8694d43505ab9e04ea5 100644
--- a/src/target/mips_m4k.c
+++ b/src/target/mips_m4k.c
@@ -113,7 +113,7 @@ int mips_m4k_poll(struct target *target)
 
 	/* read ejtag control reg */
 	jtag_set_end_state(TAP_IDLE);
-	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+	mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 	mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 
 	/* clear this bit before handling polling
@@ -125,7 +125,7 @@ int mips_m4k_poll(struct target *target)
 		jtag_set_end_state(TAP_IDLE);
 		ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_ROCC;
 
-		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 		mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 		LOG_DEBUG("Reset Detected");
 	}
@@ -136,7 +136,7 @@ int mips_m4k_poll(struct target *target)
 		if ((target->state == TARGET_RUNNING) || (target->state == TARGET_RESET))
 		{
 			jtag_set_end_state(TAP_IDLE);
-			mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT, NULL);
+			mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT);
 
 			target->state = TARGET_HALTED;
 
@@ -228,12 +228,12 @@ int mips_m4k_assert_reset(struct target *target)
 	{
 		/* use hardware to catch reset */
 		jtag_set_end_state(TAP_IDLE);
-		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_EJTAGBOOT, NULL);
+		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_EJTAGBOOT);
 	}
 	else
 	{
 		jtag_set_end_state(TAP_IDLE);
-		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT, NULL);
+		mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT);
 	}
 
 	if (assert_srst)
@@ -257,21 +257,21 @@ int mips_m4k_assert_reset(struct target *target)
 			LOG_DEBUG("Using MTAP reset to reset processor...");
 
 			/* use microchip specific MTAP reset */
-			mips_ejtag_set_instr(ejtag_info, MTAP_SW_MTAP, NULL);
-			mips_ejtag_set_instr(ejtag_info, MTAP_COMMAND, NULL);
+			mips_ejtag_set_instr(ejtag_info, MTAP_SW_MTAP);
+			mips_ejtag_set_instr(ejtag_info, MTAP_COMMAND);
 
 			mchip_cmd = MCHP_ASERT_RST;
 			mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
 			mchip_cmd = MCHP_DE_ASSERT_RST;
 			mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
-			mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP, NULL);
+			mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP);
 		}
 		else
 		{
 			/* use ejtag reset - not supported by all cores */
 			uint32_t ejtag_ctrl = ejtag_info->ejtag_ctrl | EJTAG_CTRL_PRRST | EJTAG_CTRL_PERRST;
 			LOG_DEBUG("Using EJTAG reset (PRRST) to reset processor...");
-			mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
+			mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL);
 			mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
 		}
 	}
@@ -933,7 +933,7 @@ int mips_m4k_examine(struct target *target)
 		{
 			/* we are using a pic32mx so select ejtag port
 			 * as it is not selected by default */
-			mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP, NULL);
+			mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP);
 			LOG_DEBUG("PIC32MX Detected - using EJTAG Interface");
 			mips_m4k->is_pic32mx = true;
 		}