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John McCarthy <jgmcc@magma.ca> cleans up the usage of the

ejtag_info->ejtag_ctrl variable.  It was being overwritten by the value read back from the EJTAG CONTROL register.  Because of the way this register works you do not want to use the value returned to write the register, you always want to write the bits explicitly.

The second patch just reduces the DMA retries to 0 in anticipation of removing the retry code altogether.

git-svn-id: svn://svn.berlios.de/openocd/trunk@1049 b42882b7-edfa-0310-969c-e2dbd0fdcd60
tags/v0.1.0
oharboe 13 years ago
parent
commit
539527ab74
5 changed files with 81 additions and 77 deletions
  1. +54
    -54
      src/target/mips32_dmaacc.c
  2. +1
    -1
      src/target/mips32_dmaacc.h
  3. +12
    -10
      src/target/mips32_pracc.c
  4. +7
    -6
      src/target/mips_ejtag.c
  5. +7
    -6
      src/target/mips_m4k.c

+ 54
- 54
src/target/mips32_dmaacc.c View File

@@ -44,7 +44,7 @@
static int ejtag_dma_read(mips_ejtag_t *ejtag_info, u32 addr, u32 *data)
{
u32 v;
u32 ctrl_reg;
u32 ejtag_ctrl;
int retries = RETRY_ATTEMPTS;

begin_ejtag_dma_read:
@@ -56,14 +56,14 @@ begin_ejtag_dma_read:

// Initiate DMA Read & set DSTRT
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DRWN | EJTAG_CTRL_DMA_WORD | EJTAG_CTRL_DSTRT | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
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);

// Wait for DSTRT to Clear
do {
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
} while(ctrl_reg & EJTAG_CTRL_DSTRT);
ejtag_ctrl = EJTAG_CTRL_DMAACC | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
} while(ejtag_ctrl & EJTAG_CTRL_DSTRT);

// Read Data
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
@@ -71,9 +71,9 @@ begin_ejtag_dma_read:

// Clear DMA & Check DERR
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
if (ctrl_reg & EJTAG_CTRL_DERR)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_ctrl & EJTAG_CTRL_DERR)
{
if (retries--) {
printf("DMA Read Addr = %08x Data = ERROR ON READ (retrying)\n", addr);
@@ -88,7 +88,7 @@ begin_ejtag_dma_read:
static int ejtag_dma_read_h(mips_ejtag_t *ejtag_info, u32 addr, u16 *data)
{
u32 v;
u32 ctrl_reg;
u32 ejtag_ctrl;
int retries = RETRY_ATTEMPTS;

begin_ejtag_dma_read_h:
@@ -100,14 +100,14 @@ begin_ejtag_dma_read_h:

// Initiate DMA Read & set DSTRT
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DRWN | EJTAG_CTRL_DMA_HALFWORD | EJTAG_CTRL_DSTRT | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
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);

// Wait for DSTRT to Clear
do {
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
} while(ctrl_reg & EJTAG_CTRL_DSTRT);
ejtag_ctrl = EJTAG_CTRL_DMAACC | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
} while(ejtag_ctrl & EJTAG_CTRL_DSTRT);

// Read Data
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
@@ -115,9 +115,9 @@ begin_ejtag_dma_read_h:

// Clear DMA & Check DERR
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
if (ctrl_reg & EJTAG_CTRL_DERR)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_ctrl & EJTAG_CTRL_DERR)
{
if (retries--) {
printf("DMA Read Addr = %08x Data = ERROR ON READ (retrying)\n", addr);
@@ -136,7 +136,7 @@ begin_ejtag_dma_read_h:
static int ejtag_dma_read_b(mips_ejtag_t *ejtag_info, u32 addr, u8 *data)
{
u32 v;
u32 ctrl_reg;
u32 ejtag_ctrl;
int retries = RETRY_ATTEMPTS;

begin_ejtag_dma_read_b:
@@ -148,14 +148,14 @@ begin_ejtag_dma_read_b:

// Initiate DMA Read & set DSTRT
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DRWN | EJTAG_CTRL_DMA_BYTE | EJTAG_CTRL_DSTRT | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
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);

// Wait for DSTRT to Clear
do {
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
} while(ctrl_reg & EJTAG_CTRL_DSTRT);
ejtag_ctrl = EJTAG_CTRL_DMAACC | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
} while(ejtag_ctrl & EJTAG_CTRL_DSTRT);

// Read Data
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_DATA, NULL);
@@ -163,9 +163,9 @@ begin_ejtag_dma_read_b:

// Clear DMA & Check DERR
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
if (ctrl_reg & EJTAG_CTRL_DERR)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_ctrl & EJTAG_CTRL_DERR)
{
if (retries--) {
printf("DMA Read Addr = %08x Data = ERROR ON READ (retrying)\n", addr);
@@ -188,7 +188,7 @@ begin_ejtag_dma_read_b:
static int ejtag_dma_write(mips_ejtag_t *ejtag_info, u32 addr, u32 data)
{
u32 v;
u32 ctrl_reg;
u32 ejtag_ctrl;
int retries = RETRY_ATTEMPTS;

begin_ejtag_dma_write:
@@ -205,20 +205,20 @@ begin_ejtag_dma_write:

// Initiate DMA Write & set DSTRT
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_WORD | EJTAG_CTRL_DSTRT | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_WORD | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);

// Wait for DSTRT to Clear
do {
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
} while(ctrl_reg & EJTAG_CTRL_DSTRT);
ejtag_ctrl = EJTAG_CTRL_DMAACC | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
} while(ejtag_ctrl & EJTAG_CTRL_DSTRT);

// Clear DMA & Check DERR
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
if (ctrl_reg & EJTAG_CTRL_DERR)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_ctrl & EJTAG_CTRL_DERR)
{
if (retries--) {
printf("DMA Write Addr = %08x Data = ERROR ON WRITE (retrying)\n", addr);
@@ -233,7 +233,7 @@ begin_ejtag_dma_write:
static int ejtag_dma_write_h(mips_ejtag_t *ejtag_info, u32 addr, u32 data)
{
u32 v;
u32 ctrl_reg;
u32 ejtag_ctrl;
int retries = RETRY_ATTEMPTS;


@@ -255,20 +255,20 @@ begin_ejtag_dma_write_h:

// Initiate DMA Write & set DSTRT
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_HALFWORD | EJTAG_CTRL_DSTRT | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_HALFWORD | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);

// Wait for DSTRT to Clear
do {
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
} while(ctrl_reg & EJTAG_CTRL_DSTRT);
ejtag_ctrl = EJTAG_CTRL_DMAACC | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
} while(ejtag_ctrl & EJTAG_CTRL_DSTRT);

// Clear DMA & Check DERR
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
if (ctrl_reg & EJTAG_CTRL_DERR)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_ctrl & EJTAG_CTRL_DERR)
{
if (retries--) {
printf("DMA Write Addr = %08x Data = ERROR ON WRITE (retrying)\n", addr);
@@ -283,7 +283,7 @@ begin_ejtag_dma_write_h:
static int ejtag_dma_write_b(mips_ejtag_t *ejtag_info, u32 addr, u32 data)
{
u32 v;
u32 ctrl_reg;
u32 ejtag_ctrl;
int retries = RETRY_ATTEMPTS;


@@ -306,20 +306,20 @@ begin_ejtag_dma_write_b:

// Initiate DMA Write & set DSTRT
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_BYTE | EJTAG_CTRL_DSTRT | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
ejtag_ctrl = EJTAG_CTRL_DMAACC | EJTAG_CTRL_DMA_BYTE | EJTAG_CTRL_DSTRT | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);

// Wait for DSTRT to Clear
do {
ctrl_reg = EJTAG_CTRL_DMAACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
} while(ctrl_reg & EJTAG_CTRL_DSTRT);
ejtag_ctrl = EJTAG_CTRL_DMAACC | ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
} while(ejtag_ctrl & EJTAG_CTRL_DSTRT);

// Clear DMA & Check DERR
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ctrl_reg = EJTAG_CTRL_PROBEN | EJTAG_CTRL_PRACC;
mips_ejtag_drscan_32(ejtag_info, &ctrl_reg);
if (ctrl_reg & EJTAG_CTRL_DERR)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_ctrl & EJTAG_CTRL_DERR)
{
if (retries--) {
printf("DMA Write Addr = %08x Data = ERROR ON WRITE (retrying)\n", addr);


+ 1
- 1
src/target/mips32_dmaacc.h View File

@@ -32,7 +32,7 @@
#define EJTAG_CTRL_DMA_WORD 0x00000100
#define EJTAG_CTRL_DMA_TRIPLEBYTE 0x00000180

#define RETRY_ATTEMPTS 4
#define RETRY_ATTEMPTS 0

extern int mips32_dmaacc_read_mem(mips_ejtag_t *ejtag_info, u32 addr, int size, int count, void *buf);
extern int mips32_dmaacc_write_mem(mips_ejtag_t *ejtag_info, u32 addr, int size, int count, void *buf);


+ 12
- 10
src/target/mips32_pracc.c View File

@@ -47,7 +47,7 @@ static int wait_for_pracc_rw(mips_ejtag_t *ejtag_info, u32 *ctrl)
while (1)
{
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
ejtag_ctrl = EJTAG_CTRL_ROCC | EJTAG_CTRL_PRACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_SETDEV;
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_ctrl & EJTAG_CTRL_PRACC)
break;
@@ -61,8 +61,9 @@ static int wait_for_pracc_rw(mips_ejtag_t *ejtag_info, u32 *ctrl)

static int mips32_pracc_exec_read(mips32_pracc_context *ctx, u32 address)
{
mips_ejtag_t *ejtag_info = ctx->ejtag_info;
int offset;
u32 ctrl, data;
u32 ejtag_ctrl, data;

if ((address >= MIPS32_PRACC_PARAM_IN)
&& (address <= MIPS32_PRACC_PARAM_IN + ctx->num_iparam * 4))
@@ -102,25 +103,26 @@ static int mips32_pracc_exec_read(mips32_pracc_context *ctx, u32 address)
mips_ejtag_drscan_32(ctx->ejtag_info, &data);

/* Clear the access pending bit (let the processor eat!) */
ctrl = EJTAG_CTRL_ROCC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_SETDEV;
ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL, NULL);
mips_ejtag_drscan_32(ctx->ejtag_info, &ctrl);
mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
return ERROR_OK;
}

static int mips32_pracc_exec_write(mips32_pracc_context *ctx, u32 address)
{
u32 ctrl,data;
u32 ejtag_ctrl,data;
int offset;
mips_ejtag_t *ejtag_info = ctx->ejtag_info;
mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_DATA, NULL);
mips_ejtag_drscan_32(ctx->ejtag_info, &data);
/* Clear access pending bit */
ctrl = EJTAG_CTRL_ROCC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_SETDEV;
ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_PRACC;
mips_ejtag_set_instr(ctx->ejtag_info, EJTAG_INST_CONTROL, NULL);
mips_ejtag_drscan_32(ctx->ejtag_info, &ctrl);
mips_ejtag_drscan_32(ctx->ejtag_info, &ejtag_ctrl);
if ((address >= MIPS32_PRACC_PARAM_IN)
&& (address <= MIPS32_PRACC_PARAM_IN + ctx->num_iparam * 4))
@@ -150,7 +152,7 @@ static int mips32_pracc_exec_write(mips32_pracc_context *ctx, u32 address)

int mips32_pracc_exec( mips_ejtag_t *ejtag_info, int code_len, u32 *code, int num_param_in, u32 *param_in, int num_param_out, u32 *param_out, int cycle)
{
u32 ctrl;
u32 ejtag_ctrl;
u32 address, data;
mips32_pracc_context ctx;
int retval;
@@ -167,7 +169,7 @@ int mips32_pracc_exec( mips_ejtag_t *ejtag_info, int code_len, u32 *code, int nu
while (1)
{
if ((retval = wait_for_pracc_rw(ejtag_info, &ctrl)) != ERROR_OK)
if ((retval = wait_for_pracc_rw(ejtag_info, &ejtag_ctrl)) != ERROR_OK)
return retval;
address = data = 0;
@@ -175,7 +177,7 @@ int mips32_pracc_exec( mips_ejtag_t *ejtag_info, int code_len, u32 *code, int nu
mips_ejtag_drscan_32(ejtag_info, &address);
/* Check for read or write */
if (ctrl & EJTAG_CTRL_PRNW)
if (ejtag_ctrl & EJTAG_CTRL_PRNW)
{
if ((retval = mips32_pracc_exec_write(&ctx, address)) != ERROR_OK)
return retval;


+ 7
- 6
src/target/mips_ejtag.c View File

@@ -194,18 +194,19 @@ int mips_ejtag_config_step(mips_ejtag_t *ejtag_info, int enable_step)

int mips_ejtag_enter_debug(mips_ejtag_t *ejtag_info)
{
u32 ejtag_ctrl;
jtag_add_end_state(TAP_RTI);
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
/* set debug break bit */
ejtag_info->ejtag_ctrl = EJTAG_CTRL_ROCC | EJTAG_CTRL_PRACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_SETDEV | EJTAG_CTRL_JTAGBRK;
mips_ejtag_drscan_32(ejtag_info, &ejtag_info->ejtag_ctrl);
ejtag_ctrl = ejtag_info->ejtag_ctrl | EJTAG_CTRL_JTAGBRK;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
/* break bit will be cleared by hardware */
ejtag_info->ejtag_ctrl = EJTAG_CTRL_ROCC | EJTAG_CTRL_PRACC | EJTAG_CTRL_PROBEN | EJTAG_CTRL_SETDEV;
mips_ejtag_drscan_32(ejtag_info, &ejtag_info->ejtag_ctrl);
LOG_DEBUG("ejtag_ctrl: 0x%8.8x", ejtag_info->ejtag_ctrl);
if((ejtag_info->ejtag_ctrl & EJTAG_CTRL_BRKST) == 0)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
LOG_DEBUG("ejtag_ctrl: 0x%8.8x", ejtag_ctrl);
if((ejtag_ctrl & EJTAG_CTRL_BRKST) == 0)
LOG_DEBUG("Failed to enter Debug Mode!");
return ERROR_OK;


+ 7
- 6
src/target/mips_m4k.c View File

@@ -132,13 +132,14 @@ int mips_m4k_poll(target_t *target)
int retval;
mips32_common_t *mips32 = target->arch_info;
mips_ejtag_t *ejtag_info = &mips32->ejtag_info;
u32 ejtag_ctrl = ejtag_info->ejtag_ctrl;
/* read ejtag control reg */
jtag_add_end_state(TAP_RTI);
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
mips_ejtag_drscan_32(ejtag_info, &ejtag_info->ejtag_ctrl);
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
if (ejtag_info->ejtag_ctrl & EJTAG_CTRL_BRKST)
if (ejtag_ctrl & EJTAG_CTRL_BRKST)
{
if ((target->state == TARGET_RUNNING) || (target->state == TARGET_RESET))
{
@@ -167,19 +168,19 @@ int mips_m4k_poll(target_t *target)
target->state = TARGET_RUNNING;
}
if (ejtag_info->ejtag_ctrl & EJTAG_CTRL_ROCC)
if (ejtag_ctrl & EJTAG_CTRL_ROCC)
{
/* we have detected a reset, clear flag
* otherwise ejtag will not work */
jtag_add_end_state(TAP_RTI);
ejtag_info->ejtag_ctrl &= ~EJTAG_CTRL_ROCC;
ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_ROCC;
mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL);
mips_ejtag_drscan_32(ejtag_info, &ejtag_info->ejtag_ctrl);
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
LOG_DEBUG("Reset Detected");
}
// LOG_DEBUG("ctrl=0x%08X", ejtag_info->ejtag_ctrl);
// LOG_DEBUG("ctrl=0x%08X", ejtag_ctrl);
return ERROR_OK;
}


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