Dirk Behme wrote:
Hi Kees,
do you kindly like to have a look to urjtag patch in attachment? I'm not
sure about it and like to hear your expertise!
The patch applies against an already configured urjtag (it patches the
Makefiles created by configure) and introduces an additional 'omap3'
command. Executing it, output is:
Answering to myself after adding some additional code:
With attachment (v2) I now get:
-- cut --
jtag> cable Flyswatter
Connected to libftdi driver.
jtag> omap3
Scanning for OMAP3 ICEPICK IR length. Should be 6:
ICEPICK IR length: 6 - ok
Looking for OMAP3 ICEPICK ID code:
OMAP3 ICEPICK IDCODE: 00001011011110101110000000101111 (0x0B7AE02F)
Starting OMAP3 ICEPICK initialization sequence ... - Finished
Scanning for new OMAP3 IR length. Should be 10 now:
new IR length: 10 - ok
Looking for OMAP3 ARM Cortex A8 ID code:
ARM Cortex A8 IDCODE: 000001011011011010110000000101111 (0x0B6D602F)
jtag>
-- cut --
ID code 0x0B6D602F is the same as in BDI example
http://elinux.org/BeagleBoardJTAG#Example
and IR length of 10 is correct, too.
So it seems to me: Yes, it works! :)
Opinions?
Best regards
Dirk
Subject: [PATCH v2] Hack to configure OMAP3 ICEPICK
From: Dirk Behme <[email protected]>
This patch adds an additional hackish 'omap3' command to urjtag
which performs OMAP3 ICEPICK initialization.
Signed-off-by: Dirk Behme <[email protected]>
--
src/cmd/Makefile | 6 -
src/cmd/cmd.c | 2
src/cmd/omap3.c | 61 +++++++++++++++++++
src/tap/Makefile | 6 -
src/tap/detect.c | 3
src/tap/omap3.c | 173 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 245 insertions(+), 6 deletions(-)
Index: jtag/src/tap/detect.c
===================================================================
--- jtag.orig/src/tap/detect.c
+++ jtag/src/tap/detect.c
@@ -244,6 +244,9 @@ detect_parts( chain_t *chain, const char
chain->parts = ps;
chain->active_part = 0;
+ chain_set_trst( chain, 0 );
+ chain_set_trst( chain, 1 );
+
/* Detect parts */
tap_reset( chain );
tap_capture_dr( chain );
Index: jtag/src/cmd/Makefile
===================================================================
--- jtag.orig/src/cmd/Makefile
+++ jtag/src/cmd/Makefile
@@ -102,7 +102,7 @@ ARFLAGS = cru
libcmd_a_AR = $(AR) $(ARFLAGS)
libcmd_a_LIBADD =
am__libcmd_a_SOURCES_DIST = frequency.c cable.c reset.c discovery.c \
- idcode.c detect.c detectflash.c help.c quit.c scan.c signal.c \
+ idcode.c omap3.c detect.c detectflash.c help.c quit.c scan.c signal.c \
salias.c bit.c register.c initbus.c print.c part.c bus.c \
instruction.c shift.c dr.c get.c test.c debug.c shell.c set.c \
endian.c parse.c peekpoke.c pod.c readmem.c writemem.c \
@@ -112,7 +112,7 @@ am__objects_1 = svf.$(OBJEXT)
am__objects_2 = bsdl.$(OBJEXT)
am_libcmd_a_OBJECTS = frequency.$(OBJEXT) cable.$(OBJEXT) \
reset.$(OBJEXT) discovery.$(OBJEXT) idcode.$(OBJEXT) \
- detect.$(OBJEXT) detectflash.$(OBJEXT) help.$(OBJEXT) \
+ omap3.$(OBJEXT) detect.$(OBJEXT) detectflash.$(OBJEXT) help.$(OBJEXT) \
quit.$(OBJEXT) scan.$(OBJEXT) signal.$(OBJEXT) \
salias.$(OBJEXT) bit.$(OBJEXT) register.$(OBJEXT) \
initbus.$(OBJEXT) print.$(OBJEXT) part.$(OBJEXT) bus.$(OBJEXT) \
@@ -256,7 +256,7 @@ top_builddir = ../..
top_srcdir = ../..
noinst_LIBRARIES = libcmd.a
libcmd_a_SOURCES = frequency.c cable.c reset.c discovery.c idcode.c \
- detect.c detectflash.c help.c quit.c scan.c signal.c salias.c \
+ detect.c omap3.c detectflash.c help.c quit.c scan.c signal.c salias.c \
bit.c register.c initbus.c print.c part.c bus.c instruction.c \
shift.c dr.c get.c test.c debug.c shell.c set.c endian.c \
parse.c peekpoke.c pod.c readmem.c writemem.c flashmem.c \
Index: jtag/src/tap/Makefile
===================================================================
--- jtag.orig/src/tap/Makefile
+++ jtag/src/tap/Makefile
@@ -170,7 +170,7 @@ ARFLAGS = cru
libtap_a_AR = $(AR) $(ARFLAGS)
libtap_a_LIBADD =
am__libtap_a_SOURCES_DIST = tap.c register.c state.c chain.c detect.c \
- discovery.c idcode.c parport.c usbconn.c cable.c \
+ discovery.c omap3.c idcode.c parport.c usbconn.c cable.c \
cable/generic.h cable/generic.c cable/generic_usbconn.h \
cable/generic_usbconn.c cable/generic_parport.h \
cable/generic_parport.c cable/cmd_xfer.h cable/cmd_xfer.c \
@@ -206,7 +206,7 @@ am__objects_21 = ppdev.$(OBJEXT)
#am__objects_22 = ppi.$(OBJEXT)
#am__objects_23 = vision_ep9307.$(OBJEXT)
am_libtap_a_OBJECTS = tap.$(OBJEXT) register.$(OBJEXT) state.$(OBJEXT) \
- chain.$(OBJEXT) detect.$(OBJEXT) discovery.$(OBJEXT) \
+ chain.$(OBJEXT) detect.$(OBJEXT) omap3.$(OBJEXT) discovery.$(OBJEXT) \
idcode.$(OBJEXT) parport.$(OBJEXT) usbconn.$(OBJEXT) \
cable.$(OBJEXT) generic.$(OBJEXT) generic_usbconn.$(OBJEXT) \
generic_parport.$(OBJEXT) cmd_xfer.$(OBJEXT) $(am__objects_1) \
@@ -350,7 +350,7 @@ top_builddir = ../..
top_srcdir = ../..
noinst_LIBRARIES = libtap.a
libtap_a_SOURCES = tap.c register.c state.c chain.c detect.c \
- discovery.c idcode.c parport.c usbconn.c cable.c \
+ discovery.c omap3.c idcode.c parport.c usbconn.c cable.c \
cable/generic.h cable/generic.c cable/generic_usbconn.h \
cable/generic_usbconn.c cable/generic_parport.h \
cable/generic_parport.c cable/cmd_xfer.h cable/cmd_xfer.c \
Index: jtag/src/cmd/omap3.c
===================================================================
--- /dev/null
+++ jtag/src/cmd/omap3.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2009 Dirk Behme <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ */
+
+#include "sysdep.h"
+
+#include <stdio.h>
+
+#include "jtag.h"
+
+#include "cmd.h"
+
+extern void omap3(chain_t *);
+
+static int
+cmd_omap3_run( chain_t *chain, char *params[] )
+{
+ if (cmd_params( params ) != 1)
+ return -1;
+
+ if (!cmd_test_cable( chain ))
+ return 1;
+
+ omap3( chain );
+
+ return 1;
+}
+
+static void
+cmd_omap3_help( void )
+{
+ printf( _(
+ "Usage: %s\n"
+ "Do proper OMAP3 initialization.\n"
+ "\n"
+ "'%s' does special TAP initialization for OMAP3 devices\n"
+ ), "omap3", "omap3" );
+}
+
+cmd_t cmd_omap3 = {
+ "omap3",
+ N_("do proper OMAP3 initialization"),
+ cmd_omap3_help,
+ cmd_omap3_run
+};
Index: jtag/src/tap/omap3.c
===================================================================
--- /dev/null
+++ jtag/src/tap/omap3.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2009 Dirk Behme <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ */
+
+#include "sysdep.h"
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "cable.h"
+#include "tap.h"
+#include "chain.h"
+
+#include "jtag.h"
+
+extern void jtag_reset(chain_t *);
+extern uint64_t bits_to_uint64(tap_register *);
+
+void
+omap3( chain_t *chain )
+{
+ int irlen, drlen;
+ tap_register *ir;
+ tap_register *drin, *drout;
+
+ /* Switch TAP to Run-Test/Idle */
+ jtag_reset( chain );
+
+ /* Detect IR length of ICEPICK, should be 6 */
+ printf( _("Scanning for OMAP3 ICEPICK IR length. Should be 6:\n") );
+ tap_capture_ir( chain );
+ irlen = detect_register_size( chain );
+ printf( _("ICEPICK IR length: %d"), irlen );
+ if(irlen != 6) {
+ printf( _("\nERROR: Wrong OMAP3 ICEPICK IR length found! Exit
...\n") );
+ return;
+ }
+ printf( _(" - ok\n") );
+
+ /*
+ * Get ID code to test basic accessibility
+ */
+
+ /* Switch TAP to Run-Test/Idle */
+ jtag_reset( chain );
+
+ printf( _("Looking for OMAP3 ICEPICK ID code:\n") );
+
+ /* Switch to DR 0x4, should be 32bit IDCODE register */
+ ir = register_init( register_alloc( irlen ), "000100" );
+ tap_capture_ir( chain );
+ tap_shift_register( chain, ir, NULL, EXITMODE_IDLE);
+
+ /* Read DR 0x4 */
+ drlen = 32;
+ drin = register_fill( register_alloc( drlen ), 0 );
+ drout = register_duplicate( drin );
+ tap_capture_dr( chain );
+ tap_shift_register( chain, drin, drout, EXITMODE_IDLE);
+
+ printf( _("OMAP3 ICEPICK IDCODE: %s (0x%08X)\n"),
+ register_get_string( drout ),
+ (unsigned int)bits_to_uint64( drout ));
+
+ register_free( drin );
+ register_free( drout );
+
+ /*
+ * ===> Start of 'TI' sequence
+ */
+
+ printf( _("Starting OMAP3 ICEPICK initialization sequence ... ") );
+
+ /* Switch to DR 0x7, should be 8 bit register */
+ register_init( ir, "000111" );
+ tap_capture_ir( chain );
+ tap_shift_register( chain, ir, NULL, EXITMODE_UPDATE);
+
+ /* Write 0x89 to DR 0x7 */
+ drlen = 8;
+ drin = register_init( register_alloc( drlen ), "10001001" );
+ tap_capture_dr( chain );
+ tap_shift_register( chain, drin, NULL, EXITMODE_UPDATE);
+ register_free( drin );
+
+ /* Switch to DR 0x2 */
+ register_init( ir, "000010" );
+ tap_capture_ir( chain );
+ tap_shift_register( chain, ir, NULL, EXITMODE_UPDATE);
+
+ /* Write 0xa3002108 to DR 0x2 */
+ drlen = 32;
+ drin = register_init( register_alloc( drlen ),
+ "10100011000000000010000100001000" );
+ tap_capture_dr( chain );
+ tap_shift_register( chain, drin, NULL, EXITMODE_UPDATE);
+ register_free( drin );
+
+ /* Switch IR to 'all-ones' */
+ register_init( ir, "111111" );
+ tap_capture_ir( chain );
+ tap_shift_register( chain, ir, NULL, EXITMODE_IDLE);
+ register_free( ir );
+
+ /* Clock at least 10 TCLK in run test idle */
+ chain_defer_clock( chain, 0, 0, 10 );
+
+ printf( _(" - Finished\n") );
+
+ /*
+ * <=== End of 'TI' sequence
+ */
+
+ /* Detect new IR length, should be 10 (6 + 4) now */
+ printf( _("Scanning for new OMAP3 IR length. Should be 10 now:\n") );
+ tap_capture_ir( chain );
+ irlen = detect_register_size( chain );
+ printf( _("new IR length: %d"), irlen );
+ if(irlen != 10) {
+ printf( _("\nERROR: Wrong new IR length configuration found!
Exit ...\n") );
+ return;
+ }
+ printf( _(" - ok\n") );
+
+ /*
+ * After calling detect_register_size() above
+ * TAP state machines are not in run-test-idle state
+ * Switch all to bypass and from shift to run-test-idle state
+ * Note: No reset allowed here any more!
+ */
+ ir = register_init( register_alloc( irlen ), "1111111111" );
+ tap_shift_register( chain, ir, NULL, EXITMODE_IDLE);
+
+ /* Switch to ARM DR 0xE, should be 32bit IDCODE register
+ * Leave ICEPICK in bypass (DR length one bit)
+ */
+ printf( _("Looking for OMAP3 ARM Cortex A8 ID code:\n") );
+ register_init( ir, "1111111110" );
+ tap_capture_ir( chain );
+ tap_shift_register( chain, ir, NULL, EXITMODE_IDLE);
+
+ /* Read ARM DR 0xE */
+ drlen = 33;
+ drin = register_fill( register_alloc( drlen ), 0 );
+ drout = register_duplicate( drin );
+ tap_capture_dr( chain );
+ tap_shift_register( chain, drin, drout, EXITMODE_IDLE);
+
+ printf( _("ARM Cortex A8 IDCODE: %s (0x%08X)\n"),
+ register_get_string( drout ),
+ (unsigned int)bits_to_uint64( drout ));
+
+ register_free( drin );
+ register_free( drout );
+ register_free( ir );
+}
Index: jtag/src/cmd/cmd.c
===================================================================
--- jtag.orig/src/cmd/cmd.c
+++ jtag/src/cmd/cmd.c
@@ -71,6 +71,7 @@ extern cmd_t cmd_script;
extern cmd_t cmd_include;
extern cmd_t cmd_addpart;
extern cmd_t cmd_usleep;
+extern cmd_t cmd_omap3;
#ifdef ENABLE_SVF
extern cmd_t cmd_svf;
#endif
@@ -117,6 +118,7 @@ const cmd_t *cmds[] = {
&cmd_include,
&cmd_addpart,
&cmd_usleep,
+ &cmd_omap3,
#ifdef ENABLE_SVF
&cmd_svf,
#endif
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