Added mips_ejtag_drscan_32_out() for optimization.

diff --git a/src/target/mips32_pracc.c b/src/target/mips32_pracc.c
index ef132fe3c49afbecf31014cc6b464f8bf1924f03..178f68e16370ab11b167debfbcac285616c56d27 100644 (file)
--- a/src/target/mips32_pracc.c
+++ b/src/target/mips32_pracc.c
@@ -188,12 +188,12 @@ 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);
-       mips_ejtag_drscan_32(ctx->ejtag_info, &data);
+       mips_ejtag_drscan_32_out(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);
-       mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
+       mips_ejtag_drscan_32_out(ctx->ejtag_info, ejtag_ctrl);
 
        return jtag_execute_queue();
 }
@@ -213,7 +213,7 @@ static int mips32_pracc_exec_write(struct mips32_pracc_context *ctx, uint32_t ad
        /* Clear access pending bit */
        ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
        mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL);
-       mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
+       mips_ejtag_drscan_32_out(ctx->ejtag_info, ejtag_ctrl);
 
        retval = jtag_execute_queue();
        if (retval != ERROR_OK)
@@ -1026,12 +1026,12 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
                        return retval;
 
                mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA);
-               mips_ejtag_drscan_32(ejtag_info, &jmp_code[i]);
+               mips_ejtag_drscan_32_out(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);
-               mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
+               mips_ejtag_drscan_32_out(ejtag_info, ejtag_ctrl);
        }
 
        if ((retval = wait_for_pracc_rw(ejtag_info, &ejtag_ctrl)) != ERROR_OK)

diff --git a/src/target/mips_ejtag.c b/src/target/mips_ejtag.c
index 087be0766d686b4e9d31864931d1d55111905edd..6229055d7f7581d9352c22243aa4228e70340b9f 100644 (file)
--- a/src/target/mips_ejtag.c
+++ b/src/target/mips_ejtag.c
@@ -121,6 +121,21 @@ int mips_ejtag_drscan_32(struct mips_ejtag *ejtag_info, uint32_t *data)
        return ERROR_OK;
 }
 
+void mips_ejtag_drscan_32_out(struct mips_ejtag *ejtag_info, uint32_t data)
+{
+       struct jtag_tap *tap;
+       tap  = ejtag_info->tap;
+       assert(tap != NULL);
+
+       struct scan_field field;
+
+       field.num_bits = 32;
+       field.out_value = (uint8_t *)&data;
+       field.in_value = NULL;
+
+       jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
+}
+
 int mips_ejtag_drscan_8(struct mips_ejtag *ejtag_info, uint32_t *data)
 {
        struct jtag_tap *tap;

diff --git a/src/target/mips_ejtag.h b/src/target/mips_ejtag.h
index aa890d2b5ecfeb32d447f6bceab60f0b7ff3aa4f..a6ed95a509b5bdc9c287ecbe4ed98ade5ccec42d 100644 (file)
--- a/src/target/mips_ejtag.h
+++ b/src/target/mips_ejtag.h
@@ -136,6 +136,7 @@ void mips_ejtag_set_instr(struct mips_ejtag *ejtag_info,
 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);

diff --git a/src/target/mips_m4k.c b/src/target/mips_m4k.c
index 74d0d5031d746d2a4bbc2708c185a99f8b9c65fc..1166b8748c5d8a6066bc89b38a5cb5feafa8c305 100644 (file)
--- a/src/target/mips_m4k.c
+++ b/src/target/mips_m4k.c
@@ -274,7 +274,7 @@ static int mips_m4k_assert_reset(struct target *target)
                        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);
-                       mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
+                       mips_ejtag_drscan_32_out(ejtag_info, ejtag_ctrl);
                }
        }