* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
do {} while(0)
#endif
+enum tap_state arm11_move_pi_to_si_via_ci[] =
+{
+ TAP_E2I, TAP_UI, TAP_SDS, TAP_SIS, TAP_CI, TAP_SI
+};
+
+
+int arm11_add_ir_scan_vc(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ if (cmd_queue_cur_state == TAP_PI)
+ jtag_add_pathmove(asizeof(arm11_move_pi_to_si_via_ci), arm11_move_pi_to_si_via_ci);
+
+ return jtag_add_ir_scan(num_fields, fields, state);
+}
+
+enum tap_state arm11_move_pd_to_sd_via_cd[] =
+{
+ TAP_E2D, TAP_UD, TAP_SDS, TAP_CD, TAP_SD
+};
+
+int arm11_add_dr_scan_vc(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ if (cmd_queue_cur_state == TAP_PD)
+ jtag_add_pathmove(asizeof(arm11_move_pd_to_sd_via_cd), arm11_move_pd_to_sd_via_cd);
+
+ return jtag_add_dr_scan(num_fields, fields, state);
+}
+
+
/** Code de-clutter: Construct scan_field_t to write out a value
*
* \param arm11 Target state variable.
arm11_setup_field(arm11, 5, &instr, NULL, &field);
- jtag_add_ir_scan_vc(1, &field, state == -1 ? TAP_PI : state);
+ arm11_add_ir_scan_vc(1, &field, state == -1 ? TAP_PI : state);
}
/** Verify shifted out data from Scan Chain Register (SCREG)
field.in_handler = arm11_in_handler_SCAN_N;
- jtag_add_dr_scan_vc(1, &field, state == -1 ? TAP_PD : state);
+ arm11_add_dr_scan_vc(1, &field, state == -1 ? TAP_PD : state);
}
/** Write an instruction into the ITR register
arm11_setup_field(arm11, 32, &inst, NULL, itr + 0);
arm11_setup_field(arm11, 1, NULL, flag, itr + 1);
- jtag_add_dr_scan_vc(asizeof(itr), itr, state == -1 ? TAP_RTI : state);
+ arm11_add_dr_scan_vc(asizeof(itr), itr, state == -1 ? TAP_RTI : state);
}
/** Read the Debug Status and Control Register (DSCR)
arm11_setup_field(arm11, 32, NULL, &dscr, &chain1_field);
- jtag_add_dr_scan_vc(1, &chain1_field, TAP_PD);
+ arm11_add_dr_scan_vc(1, &chain1_field, TAP_PD);
jtag_execute_queue();
arm11_setup_field(arm11, 32, &dscr, NULL, &chain1_field);
- jtag_add_dr_scan_vc(1, &chain1_field, TAP_PD);
+ arm11_add_dr_scan_vc(1, &chain1_field, TAP_PD);
jtag_execute_queue();
{
Data = *data;
- jtag_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_RTI);
+ arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_RTI);
jtag_execute_queue();
JTAG_DEBUG("DTR Ready %d nRetry %d", Ready, nRetry);
{
Data = 0;
- jtag_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_PD);
+ arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_PD);
jtag_execute_queue();
JTAG_DEBUG("DTR Data %08x Ready %d nRetry %d", Data, Ready, nRetry);
}
while (!Ready);
+}
+
+/** JTAG path for arm11_run_instr_data_to_core_noack
+ *
+ * The repeated TAP_RTI's do not cause a repeated execution
+ * if passed without leaving the state.
+ *
+ * Since this is more than 7 bits (adjustable via adding more
+ * TAP_RTI's) it produces an artificial delay in the lower
+ * layer (FT2232) that is long enough to finish execution on
+ * the core but still shorter than any manually inducible delays.
+ *
+ */
+enum tap_state arm11_MOVE_PD_RTI_PD_with_delay[] =
+{
+ TAP_E2D, TAP_UD, TAP_RTI, TAP_RTI, TAP_RTI, TAP_SDS, TAP_CD, TAP_SD
+};
+
+
+
+/** Execute one instruction via ITR repeatedly while
+ * passing data to the core via DTR on each execution.
+ *
+ * No Ready check during transmission.
+ *
+ * The executed instruction \em must read data from DTR.
+ *
+ * \pre arm11_run_instr_data_prepare() / arm11_run_instr_data_finish() block
+ *
+ * \param arm11 Target state variable.
+ * \param opcode ARM opcode
+ * \param data Pointer to the data words to be passed to the core
+ * \param count Number of data words and instruction repetitions
+ *
+ */
+void arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count)
+{
+ arm11_add_IR(arm11, ARM11_ITRSEL, -1);
+
+ arm11_add_debug_INST(arm11, opcode, NULL, TAP_PD);
+
+ arm11_add_IR(arm11, ARM11_EXTEST, -1);
+
+ scan_field_t chain5_fields[3];
+
+ arm11_setup_field(arm11, 32, NULL/*&Data*/, NULL, chain5_fields + 0);
+ arm11_setup_field(arm11, 1, NULL, NULL /*&Ready*/, chain5_fields + 1);
+ arm11_setup_field(arm11, 1, NULL, NULL, chain5_fields + 2);
+
+ u8 Readies[count + 1];
+ u8 * ReadyPos = Readies;
+
+ while (count--)
+ {
+ chain5_fields[0].out_value = (void *)(data++);
+ chain5_fields[1].in_value = ReadyPos++;
+
+ if (count)
+ {
+ jtag_add_dr_scan(asizeof(chain5_fields), chain5_fields, TAP_PD);
+ jtag_add_pathmove(asizeof(arm11_MOVE_PD_RTI_PD_with_delay),
+ arm11_MOVE_PD_RTI_PD_with_delay);
+ }
+ else
+ {
+ jtag_add_dr_scan(asizeof(chain5_fields), chain5_fields, TAP_RTI);
+ }
+ }
+
+ arm11_add_IR(arm11, ARM11_INTEST, -1);
+
+ chain5_fields[0].out_value = 0;
+ chain5_fields[1].in_value = ReadyPos++;
+ arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_PD);
+ jtag_execute_queue();
+
+ size_t error_count = 0;
+
+ {size_t i;
+ for (i = 0; i < asizeof(Readies); i++)
+ {
+ if (Readies[i] != 1)
+ {
+ error_count++;
+ }
+ }}
+
+ if (error_count)
+ ERROR("Transfer errors %d", error_count);
}
+
/** Execute an instruction via ITR while handing data into the core via DTR.
*
* The executed instruction \em must read data from DTR.
{
do
{
- jtag_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, count ? TAP_RTI : TAP_PD);
+ arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, count ? TAP_RTI : TAP_PD);
jtag_execute_queue();
JTAG_DEBUG("DTR Data %08x Ready %d nRetry %d", Data, Ready, nRetry);
arm11_run_instr_no_data1(arm11, opcode);
}
-
+/** Apply reads and writes to scan chain 7
+ *
+ * \see arm11_sc7_action_t
+ *
+ * \param arm11 Target state variable.
+ * \param actions A list of read and/or write instructions
+ * \param count Number of instructions in the list.
+ *
+ */
void arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t count)
{
arm11_add_debug_SCAN_N(arm11, 0x07, -1);
{
JTAG_DEBUG("SC7 <= Address %02x Data %08x nRW %d", AddressOut, DataOut, nRW);
- jtag_add_dr_scan_vc(asizeof(chain7_fields), chain7_fields, TAP_PD);
+ arm11_add_dr_scan_vc(asizeof(chain7_fields), chain7_fields, TAP_PD);
jtag_execute_queue();
JTAG_DEBUG("SC7 => Address %02x Data %08x Ready %d", AddressIn, DataIn, Ready);
}}
}
-void arm11_sc7_clear_bw(arm11_common_t * arm11)
+/** Clear VCR and all breakpoints and watchpoints via scan chain 7
+ *
+ * \param arm11 Target state variable.
+ *
+ */
+void arm11_sc7_clear_vbw(arm11_common_t * arm11)
{
- size_t actions = arm11->brp + arm11->wrp;
-
- arm11_sc7_action_t clear_bw[actions];
+ arm11_sc7_action_t clear_bw[arm11->brp + arm11->wrp + 1];
+ arm11_sc7_action_t * pos = clear_bw;
{size_t i;
- for (i = 0; i < actions; i++)
+ for (i = 0; i < asizeof(clear_bw); i++)
{
- clear_bw[i].write = true;
+ clear_bw[i].write = 1;
clear_bw[i].value = 0;
- clear_bw[i].address =
- i < arm11->brp ?
- ARM11_SC7_BCR0 + i :
- ARM11_SC7_WCR0 + i - arm11->brp;
}}
- arm11_sc7_run(arm11, clear_bw, actions);
+ {size_t i;
+ for (i = 0; i < arm11->brp; i++)
+ (pos++)->address = ARM11_SC7_BCR0 + i;
+ }
+
+ {size_t i;
+ for (i = 0; i < arm11->wrp; i++)
+ (pos++)->address = ARM11_SC7_WCR0 + i;
+ }
+
+ (pos++)->address = ARM11_SC7_VCR;
+}
+
+/** Write VCR register
+ *
+ * \param arm11 Target state variable.
+ * \param value Value to be written
+ */
+void arm11_sc7_set_vcr(arm11_common_t * arm11, u32 value)
+{
+ arm11_sc7_action_t set_vcr;
+
+ set_vcr.write = 0;
+ set_vcr.address = ARM11_SC7_VCR;
+ set_vcr.value = value;
+
+
+ arm11_sc7_run(arm11, &set_vcr, 1);
+}
+
+
+
+/** Read word from address
+ *
+ * \param arm11 Target state variable.
+ * \param address Memory address to be read
+ * \param result Pointer where to store result
+ *
+ */
+void arm11_read_memory_word(arm11_common_t * arm11, u32 address, u32 * result)
+{
+ arm11_run_instr_data_prepare(arm11);
+
+ /* MRC p14,0,r0,c0,c5,0 (r0 = address) */
+ arm11_run_instr_data_to_core1(arm11, 0xee100e15, address);
+
+ /* LDC p14,c5,[R0],#4 (DTR = [r0]) */
+ arm11_run_instr_data_from_core(arm11, 0xecb05e01, result, 1);
+
+ arm11_run_instr_data_finish(arm11);
}
+
projects / openocd / blobdiff