arm11 wip

git-svn-id: svn://svn.berlios.de/openocd/trunk@1317 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/jtag/jtag.c

@@ -40,6 +40,7 @@
 */
 int jtag_error=ERROR_OK;
 
+
 typedef struct cmd_queue_page_s
 {
 	void *address;
@@ -1364,6 +1365,11 @@ int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
 	return retval;
 }
 
+static const char *jtag_tap_name(jtag_tap_t *tap)
+{
+	return (tap == NULL) ? "(unknown)" : tap->dotted_name;
+}
+
 int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
 {
 	int retval = ERROR_OK;
@@ -1382,7 +1388,7 @@ int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
 		 * acknowledged the error
 		 */
 		LOG_WARNING("TAP %s:",
-					(field->tap == NULL) ? "(unknown)" : field->tap->dotted_name );
+					jtag_tap_name(field->tap));
 		if (compare_failed)
 		{
 			char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
@@ -1698,17 +1704,18 @@ int jtag_validate_chain(void)
 
 	tap = NULL;
 	chain_pos = 0;
+	int val;
 	for(;;){
 		tap = jtag_NextEnabledTap(tap);
 		if( tap == NULL ){
 			break;
 		}
 
-
-		if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
+		val = buf_get_u32(ir_test, chain_pos, 2);
+		if (val != 0x1)
 		{
 			char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
-			LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
+			LOG_ERROR("Could not validate JTAG scan chain, IR mismatch, scan returned 0x%s. tap=%s pos=%d expected 0x1 got %0x", cbuf, jtag_tap_name(tap), chain_pos, val);
 			free(cbuf);
 			free(ir_test);
 			return ERROR_JTAG_INIT_FAILED;
@@ -1716,10 +1723,11 @@ int jtag_validate_chain(void)
 		chain_pos += tap->ir_length;
 	}
 
-	if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
+	val = buf_get_u32(ir_test, chain_pos, 2);
+	if (val != 0x3)
 	{
 		char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
-		LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
+		LOG_ERROR("Could not validate end of JTAG scan chain, IR mismatch, scan returned 0x%s. pos=%d expected 0x3 got %0x", cbuf, chain_pos, val);
 		free(cbuf);
 		free(ir_test);
 		return ERROR_JTAG_INIT_FAILED;
@@ -2249,7 +2257,7 @@ static int jtag_init_inner(struct command_context_s *cmd_ctx)
 
 	if (jtag_validate_chain() != ERROR_OK)
 	{
-		LOG_ERROR("Could not validate JTAG chain, continuing anyway...");
+		LOG_WARNING("Could not validate JTAG chain, continuing anyway...");
 	}
 
 	return ERROR_OK;
@@ -2953,6 +2961,7 @@ void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
 	}
 }
 
+
 /* map state number to SVF state string */
 const char* jtag_state_name(enum tap_state state)
 {
@@ -2981,3 +2990,4 @@ const char* jtag_state_name(enum tap_state state)
 
 	return ret;
 }
+

src/target/target/imx31.cfg

@@ -45,14 +45,14 @@ jtag newtap $_CHIPNAME sjc -irlen 4 -ircapture 0x0 -irmask 0x0 -expected-id $_SJ
 #    SDMA_BYPASS - disables SDMA    - 
 #  
 # Per ARM: DDI0211J_arm1136_r1p5_trm.pdf - the ARM 1136 as a 5 bit IR register
-jtag newtap $_CHIPNAME cpu -irlen 5 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+jtag newtap $_CHIPNAME cpu -irlen 5 -ircapture 0x1 -irmask 0x1f -expected-id $_CPUTAPID
 
 # No IDCODE for this TAP
 jtag newtap $_CHIPNAME whatchacallit -irlen 4 -ircapture 0 -irmask 0xf -expected-id 0x0
 
 # Per section 40.17.1, table 40-85 the IR register is 4 bits
 # But this conflicts with Diagram 6-13, "3bits ir and drs"
-jtag newtap $_CHIPNAME smda -irlen 5 -ircapture 0x1 -irmask 0xf -expected-id $_SDMATAPID
+jtag newtap $_CHIPNAME smda -irlen 5 -ircapture 0x1 -irmask 0x1f -expected-id $_SDMATAPID
 
 set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
 target create $_TARGETNAME arm11 -endian $_ENDIAN -chain-position $_TARGETNAME