cmd: add missing usage vars

[fw/openocd] / src / target / arm966e.c

diff --git a/src/target/arm966e.c b/src/target/arm966e.c
index 82be73801e5a23af91a74bd53af419c4357ef541..439b0f639fe57ae0608013682eaeb6f6fd34c3da 100644 (file)
--- a/src/target/arm966e.c
+++ b/src/target/arm966e.c
@@ -68,6 +68,13 @@ static int arm966e_verify_pointer(struct command_context *cmd_ctx,
        return ERROR_OK;
 }
 
+/*
+ * REVISIT:  The "read_cp15" and "write_cp15" commands could hook up
+ * to eventual mrc() and mcr() routines ... the reg_addr values being
+ * constructed (for CP15 only) from Opcode_1, Opcode_2, and CRn values.
+ * See section 7.3 of the ARM966E-S TRM.
+ */
+
 static int arm966e_read_cp15(struct target *target, int reg_addr, uint32_t *value)
 {
        int retval = ERROR_OK;
@@ -77,33 +84,34 @@ static int arm966e_read_cp15(struct target *target, int reg_addr, uint32_t *valu
        uint8_t reg_addr_buf = reg_addr & 0x3f;
        uint8_t nr_w_buf = 0;
 
-       jtag_set_end_state(TAP_IDLE);
-       if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK)
+       if ((retval = arm_jtag_scann(jtag_info, 0xf, TAP_IDLE)) != ERROR_OK)
        {
                return retval;
        }
-       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
+       retval = arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL, TAP_IDLE);
+       if (retval != ERROR_OK)
+               return retval;
 
-       fields[0].tap = jtag_info->tap;
        fields[0].num_bits = 32;
+       /* REVISIT: table 7-2 shows that bits 31-31 need to be
+        * specified for accessing BIST registers ...
+        */
        fields[0].out_value = NULL;
        fields[0].in_value = NULL;
 
-       fields[1].tap = jtag_info->tap;
        fields[1].num_bits = 6;
        fields[1].out_value = &reg_addr_buf;
        fields[1].in_value = NULL;
 
-       fields[2].tap = jtag_info->tap;
        fields[2].num_bits = 1;
        fields[2].out_value = &nr_w_buf;
        fields[2].in_value = NULL;
 
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
 
        fields[1].in_value = (uint8_t *)value;
 
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
 
        jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)value);
 
@@ -132,29 +140,27 @@ int arm966e_write_cp15(struct target *target, int reg_addr, uint32_t value)
 
        buf_set_u32(value_buf, 0, 32, value);
 
-       jtag_set_end_state(TAP_IDLE);
-       if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK)
+       if ((retval = arm_jtag_scann(jtag_info, 0xf, TAP_IDLE)) != ERROR_OK)
        {
                return retval;
        }
-       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
+       retval = arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL, TAP_IDLE);
+       if (retval != ERROR_OK)
+               return retval;
 
-       fields[0].tap = jtag_info->tap;
        fields[0].num_bits = 32;
        fields[0].out_value = value_buf;
        fields[0].in_value = NULL;
 
-       fields[1].tap = jtag_info->tap;
        fields[1].num_bits = 6;
        fields[1].out_value = &reg_addr_buf;
        fields[1].in_value = NULL;
 
-       fields[2].tap = jtag_info->tap;
        fields[2].num_bits = 1;
        fields[2].out_value = &nr_w_buf;
        fields[2].in_value = NULL;
 
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
 
 #ifdef _DEBUG_INSTRUCTION_EXECUTION_
        LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, value);
@@ -227,7 +233,7 @@ static const struct command_registration arm966e_exec_command_handlers[] = {
                .name = "cp15",
                .handler = arm966e_handle_cp15_command,
                .mode = COMMAND_EXEC,
-               .usage = "<opcode> [value]",
+               .usage = "regnum [value]",
                .help = "display/modify cp15 register",
        },
        COMMAND_REGISTRATION_DONE
@@ -241,6 +247,7 @@ const struct command_registration arm966e_command_handlers[] = {
                .name = "arm966e",
                .mode = COMMAND_ANY,
                .help = "arm966e command group",
+               .usage = "",
                .chain = arm966e_exec_command_handlers,
        },
        COMMAND_REGISTRATION_DONE
@@ -284,4 +291,5 @@ struct target_type arm966e_target =
        .target_create = arm966e_target_create,
        .init_target = arm9tdmi_init_target,
        .examine = arm7_9_examine,
+       .check_reset = arm7_9_check_reset,
 };