Cortex-A8: fix indent

[openocd.git] / src / target / arm11_dbgtap.c

diff --git a/src/target/arm11_dbgtap.c b/src/target/arm11_dbgtap.c
index 0e1160f8a7a105d25e560e666f3706614dcf62c3..fc7a55c5ebf5e192da1f3ff13f545bdf3089cca0 100644 (file)
--- a/src/target/arm11_dbgtap.c
+++ b/src/target/arm11_dbgtap.c
@@ -940,3 +940,79 @@ int arm11_read_memory_word(arm11_common_t * arm11, uint32_t address, uint32_t *
 }
 
 
+/** Write Embedded Trace Macrocell (ETM) via Scan chain 6
+ *
+ * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0318e/Bcfddjeh.html#Bcfggcbe
+ *
+ * \param arm11                Target state variable.
+ * \param address      7 bit ETM register address
+ * \param value                Value to be written
+ *                                     
+ * \return                     Error status
+ *
+ * \remarks                    This is a stand-alone function that executes the JTAG command queue.
+ */
+int arm11_write_etm(arm11_common_t * arm11, uint8_t address, uint32_t value)
+{
+       CHECK_RETVAL(arm11_add_debug_SCAN_N(arm11, 0x06, ARM11_TAP_DEFAULT));
+
+       /* Uses INTEST for read and write */
+       arm11_add_IR(arm11, ARM11_INTEST, ARM11_TAP_DEFAULT);
+
+       scan_field_t            chain6_fields[3];
+
+       uint8_t                         nRW                     = 1;
+
+       arm11_setup_field(arm11, 32, &value,            NULL,           chain6_fields + 0);
+       arm11_setup_field(arm11,  7, &address,          NULL,           chain6_fields + 1);
+       arm11_setup_field(arm11,  1, &nRW,                      NULL,           chain6_fields + 2);
+
+       arm11_add_dr_scan_vc(asizeof(chain6_fields), chain6_fields, TAP_IDLE);
+
+       CHECK_RETVAL(jtag_execute_queue());
+
+       return ERROR_OK;
+}
+
+/** Read Embedded Trace Macrocell (ETM) via Scan chain 6
+ *
+ * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0318e/Bcfddjeh.html#Bcfggcbe
+ *
+ * \param arm11                Target state variable.
+ * \param address      7 bit ETM register address
+ * \param value                Pointer that receives value that was read
+ *                                     
+ * \return                     Error status
+ *
+ * \remarks                    This is a stand-alone function that executes the JTAG command queue.
+ */
+int arm11_read_etm(arm11_common_t * arm11, uint8_t address, uint32_t * value)
+{
+       CHECK_RETVAL(arm11_add_debug_SCAN_N(arm11, 0x06, ARM11_TAP_DEFAULT));
+
+       /* Uses INTEST for read and write */
+       arm11_add_IR(arm11, ARM11_INTEST, ARM11_TAP_DEFAULT);
+
+       scan_field_t            chain6_fields[3];
+
+       uint8_t                         nRW                     = 0;
+
+       arm11_setup_field(arm11, 32, NULL,                      NULL,           chain6_fields + 0);
+       arm11_setup_field(arm11,  7, &address,          NULL,           chain6_fields + 1);
+       arm11_setup_field(arm11,  1, &nRW,                      NULL,           chain6_fields + 2);
+
+       arm11_add_dr_scan_vc(asizeof(chain6_fields), chain6_fields, TAP_IDLE);
+
+       /* Data is made available in Capture-DR and shifted out on the next access */
+
+       arm11_setup_field(arm11, 32, NULL,                      value,          chain6_fields + 0);
+       arm11_setup_field(arm11,  7, &address,          NULL,           chain6_fields + 1);
+       arm11_setup_field(arm11,  1, &nRW,                      NULL,           chain6_fields + 2);
+
+       arm11_add_dr_scan_vc(asizeof(chain6_fields), chain6_fields, TAP_IDLE);
+
+       CHECK_RETVAL(jtag_execute_queue());
+
+       return ERROR_OK;
+}
+