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Diffstat (limited to 'src/target/mips_ejtag.c')
-rw-r--r--src/target/mips_ejtag.c96
1 files changed, 45 insertions, 51 deletions
diff --git a/src/target/mips_ejtag.c b/src/target/mips_ejtag.c
index 449b6b82..9114f8c4 100644
--- a/src/target/mips_ejtag.c
+++ b/src/target/mips_ejtag.c
@@ -21,6 +21,7 @@
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@@ -35,8 +36,7 @@ void mips_ejtag_set_instr(struct mips_ejtag *ejtag_info, int new_instr)
tap = ejtag_info->tap;
assert(tap != NULL);
- if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != (uint32_t)new_instr)
- {
+ if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != (uint32_t)new_instr) {
struct scan_field field;
uint8_t t[4];
@@ -63,8 +63,8 @@ int mips_ejtag_get_idcode(struct mips_ejtag *ejtag_info, uint32_t *idcode)
jtag_add_dr_scan(ejtag_info->tap, 1, &field, TAP_IDLE);
int retval;
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK) {
LOG_ERROR("register read failed");
return retval;
}
@@ -88,8 +88,8 @@ static int mips_ejtag_get_impcode(struct mips_ejtag *ejtag_info, uint32_t *impco
jtag_add_dr_scan(ejtag_info->tap, 1, &field, TAP_IDLE);
int retval;
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK) {
LOG_ERROR("register read failed");
return retval;
}
@@ -116,8 +116,8 @@ int mips_ejtag_drscan_32(struct mips_ejtag *ejtag_info, uint32_t *data)
jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK) {
LOG_ERROR("register read failed");
return retval;
}
@@ -164,8 +164,8 @@ int mips_ejtag_drscan_8(struct mips_ejtag *ejtag_info, uint32_t *data)
jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK) {
LOG_ERROR("register read failed");
return retval;
}
@@ -193,12 +193,12 @@ void mips_ejtag_drscan_8_out(struct mips_ejtag *ejtag_info, uint8_t data)
static int mips_ejtag_step_enable(struct mips_ejtag *ejtag_info)
{
static const uint32_t code[] = {
- MIPS32_MTC0(1,31,0), /* move $1 to COP0 DeSave */
- MIPS32_MFC0(1,23,0), /* move COP0 Debug to $1 */
- MIPS32_ORI(1,1,0x0100), /* set SSt bit in debug reg */
- MIPS32_MTC0(1,23,0), /* move $1 to COP0 Debug */
+ MIPS32_MTC0(1, 31, 0), /* move $1 to COP0 DeSave */
+ MIPS32_MFC0(1, 23, 0), /* move COP0 Debug to $1 */
+ MIPS32_ORI(1, 1, 0x0100), /* set SSt bit in debug reg */
+ MIPS32_MTC0(1, 23, 0), /* move $1 to COP0 Debug */
MIPS32_B(NEG16(5)),
- MIPS32_MFC0(1,31,0), /* move COP0 DeSave to $1 */
+ MIPS32_MFC0(1, 31, 0), /* move COP0 DeSave to $1 */
};
return mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
@@ -208,20 +208,20 @@ static int mips_ejtag_step_enable(struct mips_ejtag *ejtag_info)
static int mips_ejtag_step_disable(struct mips_ejtag *ejtag_info)
{
static const uint32_t code[] = {
- MIPS32_MTC0(15,31,0), /* move $15 to COP0 DeSave */
- MIPS32_LUI(15,UPPER16(MIPS32_PRACC_STACK)), /* $15 = MIPS32_PRACC_STACK */
- MIPS32_ORI(15,15,LOWER16(MIPS32_PRACC_STACK)),
- MIPS32_SW(1,0,15), /* sw $1,($15) */
- MIPS32_SW(2,0,15), /* sw $2,($15) */
- MIPS32_MFC0(1,23,0), /* move COP0 Debug to $1 */
- MIPS32_LUI(2,0xFFFF), /* $2 = 0xfffffeff */
- MIPS32_ORI(2,2,0xFEFF),
- MIPS32_AND(1,1,2),
- MIPS32_MTC0(1,23,0), /* move $1 to COP0 Debug */
- MIPS32_LW(2,0,15),
- MIPS32_LW(1,0,15),
+ MIPS32_MTC0(15, 31, 0), /* move $15 to COP0 DeSave */
+ MIPS32_LUI(15, UPPER16(MIPS32_PRACC_STACK)), /* $15 = MIPS32_PRACC_STACK */
+ MIPS32_ORI(15, 15, LOWER16(MIPS32_PRACC_STACK)),
+ MIPS32_SW(1, 0, 15), /* sw $1,($15) */
+ MIPS32_SW(2, 0, 15), /* sw $2,($15) */
+ MIPS32_MFC0(1, 23, 0), /* move COP0 Debug to $1 */
+ MIPS32_LUI(2, 0xFFFF), /* $2 = 0xfffffeff */
+ MIPS32_ORI(2, 2, 0xFEFF),
+ MIPS32_AND(1, 1, 2),
+ MIPS32_MTC0(1, 23, 0), /* move $1 to COP0 Debug */
+ MIPS32_LW(2, 0, 15),
+ MIPS32_LW(1, 0, 15),
MIPS32_B(NEG16(13)),
- MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */
+ MIPS32_MFC0(15, 31, 0), /* move COP0 DeSave to $15 */
};
return mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
@@ -248,8 +248,7 @@ int mips_ejtag_enter_debug(struct mips_ejtag *ejtag_info)
ejtag_ctrl = ejtag_info->ejtag_ctrl;
mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl);
LOG_DEBUG("ejtag_ctrl: 0x%8.8" PRIx32 "", ejtag_ctrl);
- if ((ejtag_ctrl & EJTAG_CTRL_BRKST) == 0)
- {
+ if ((ejtag_ctrl & EJTAG_CTRL_BRKST) == 0) {
LOG_ERROR("Failed to enter Debug Mode!");
return ERROR_FAIL;
}
@@ -270,19 +269,19 @@ int mips_ejtag_read_debug(struct mips_ejtag *ejtag_info, uint32_t* debug_reg)
{
/* read ejtag ECR */
static const uint32_t code[] = {
- MIPS32_MTC0(15,31,0), /* move $15 to COP0 DeSave */
- MIPS32_LUI(15,UPPER16(MIPS32_PRACC_STACK)), /* $15 = MIPS32_PRACC_STACK */
- MIPS32_ORI(15,15,LOWER16(MIPS32_PRACC_STACK)),
- MIPS32_SW(1,0,15), /* sw $1,($15) */
- MIPS32_SW(2,0,15), /* sw $2,($15) */
- MIPS32_LUI(1,UPPER16(MIPS32_PRACC_PARAM_OUT)), /* $1 = MIPS32_PRACC_PARAM_OUT */
- MIPS32_ORI(1,1,LOWER16(MIPS32_PRACC_PARAM_OUT)),
- MIPS32_MFC0(2,23,0), /* move COP0 Debug to $2 */
- MIPS32_SW(2,0,1),
- MIPS32_LW(2,0,15),
- MIPS32_LW(1,0,15),
+ MIPS32_MTC0(15, 31, 0), /* move $15 to COP0 DeSave */
+ MIPS32_LUI(15, UPPER16(MIPS32_PRACC_STACK)), /* $15 = MIPS32_PRACC_STACK */
+ MIPS32_ORI(15, 15, LOWER16(MIPS32_PRACC_STACK)),
+ MIPS32_SW(1, 0, 15), /* sw $1,($15) */
+ MIPS32_SW(2, 0, 15), /* sw $2,($15) */
+ MIPS32_LUI(1, UPPER16(MIPS32_PRACC_PARAM_OUT)), /* $1 = MIPS32_PRACC_PARAM_OUT */
+ MIPS32_ORI(1, 1, LOWER16(MIPS32_PRACC_PARAM_OUT)),
+ MIPS32_MFC0(2, 23, 0), /* move COP0 Debug to $2 */
+ MIPS32_SW(2, 0, 1),
+ MIPS32_LW(2, 0, 15),
+ MIPS32_LW(1, 0, 15),
MIPS32_B(NEG16(12)),
- MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */
+ MIPS32_MFC0(15, 31, 0), /* move COP0 DeSave to $15 */
};
return mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code,
@@ -302,8 +301,7 @@ int mips_ejtag_init(struct mips_ejtag *ejtag_info)
/* get ejtag version */
ejtag_version = ((ejtag_info->impcode >> 29) & 0x07);
- switch (ejtag_version)
- {
+ switch (ejtag_version) {
case 0:
LOG_DEBUG("EJTAG: Version 1 or 2.0 Detected");
break;
@@ -359,19 +357,15 @@ int mips_ejtag_fastdata_scan(struct mips_ejtag *ejtag_info, int write_t, uint32_
fields[1].num_bits = 32;
fields[1].out_value = t;
- if (write_t)
- {
+ if (write_t) {
fields[1].in_value = NULL;
buf_set_u32(t, 0, 32, *data);
- }
- else
- {
+ } else
fields[1].in_value = (void *) data;
- }
jtag_add_dr_scan(tap, 2, fields, TAP_IDLE);
- if ( (!write_t) && (data) )
+ if (!write_t && data)
jtag_add_callback(mips_le_to_h_u32,
(jtag_callback_data_t) data);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-10-20 23:40:55 +0000