Many FPGA board speak JTAG and have a SPI flash for their bitstream
attached to them. The SPI flash is programmed by first uploading a
proxy bitstream to the FPGA that connects the JTAG interface to the
SPI interface if the IR contains a certain USER instruction. Then the
SPI flash can be erase, written, read directly through the JTAG DR.
The JTAG and SPI signaling is compatible. Such a proxy bitstream only
needs to connect TDO-MISO, TDI-MOSI, TCK-CLK, and the activate the
chip select when the IR contains the special instruction and the JTAG
state machine is in the DR-SHIFT state.
Change-Id: Ibc21d793a83b36fa37e2704966aa5c837c4dd0d2
Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/2844
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
The only read access to flash chips so is through the target's
memory. Flashes like jtagspi do not expose a memory mapped interface
to the flash. These commands use the flash_driver_read() driver API
directly.
Change-Id: I40b910de650114a3f676507f9f059a234377d862
Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/2842
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This adds an option to disable the use of the JSTART instruction
when loading bitstreams to xilinx fpgas. JSTART apparently prevents
configuration if the startup clock is not set to the jtag clock in
the bitstream.
xc3sprog is omitting JSTART for all devices. Problems with loading a bitstream
that does not have StartupClk:JTAGClk are described here:
http://www.xilinx.com/support/answers/56151.html
Change-Id: I8137c0bae05a8c3c6f8e2611869f70a770d1651d
Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/2860
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This is needed to unbreak build on systems that ship texinfo version
4.x.
Change-Id: Ie665d29b02bb65da7e8ed0d48d17fa56e231bd0d
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2781
Tested-by: jenkins
Reviewed-by: David Ung <davidu@nvidia.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-by: Oleksij Rempel
Put all the individual driver descriptions to where they really
belong, fix sectioning etc.
Change-Id: I94dc09e9a296ec57db4475f8dfb0a7d62a754aa4
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2770
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Directory listings are volatile and serve no purpose in the
manual. Just remove them.
Change-Id: I63d54ba209c29eafb6608cf406b8ce5d8e9ee6c8
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2768
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
This adds the mandatory Info documentation for the driver as well as
the usage field.
As a clean up, this also includes freeing of the allocated memory
which results in a memory leak if probe is invoked multiple times.
Valgrind-tested.
Reported by Dmitry Shpak.
Change-Id: I2b1d9b9e8b069c6665b11d880b40ce19a1b26ce6
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2694
Tested-by: jenkins
Reviewed-by: Дмитрий Шпак <disona@yandex.ru>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
* also included example for flash usage information
Change-Id: Icf9defc25d38bf24567b1708138b83a8de1e0497
Signed-off-by: Mahavir Jain <mjain@marvell.com>
Reviewed-on: http://openocd.zylin.com/2705
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Run-time tested with FreeRTOS V8.1.2 (current version).
For the time being I propose this way of dealing with RTOSes that do
not export necessary information on their own.
I also suggest implementing a similar scheme for ChibiOS, exporting
the necessary struct fields' offsets via an OpenOCD-specific helper.
Change-Id: Iacf8b88004d62206215fe80011fd7592438446a3
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/2347
Tested-by: jenkins
This is a remake of http://openocd.zylin.com/1966
originally written by Angus Gratton <gus@projectgus.com>
ATSAM4L has a "System Manager Access Port" (SMAP) that holds the CPU
in reset if TCK is low when srst (RESET_N) is deasserted.
Without this change any use of sysresetreq or srst locks the chip
in reset state until power is cycled.
A new function smap_reset_deassert is called as reset-deassert-post event handler.
It optionally prepares reset vector catch and SMAP reset is released then.
Change-Id: Iad736357b0f551725befa2b9e00f3bc54504f3d8
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2604
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This patch might influence openocd Tcl commands behaviour in subtle
ways, please give it a nice testing.
The idea is that if an OpenOCD Tcl command returns an error, an
exception is raised, and then the return code is propogated all the
way up (or to the "catch" if present). This allows to detect
"shutdown" which is not actually an error but has to raise an
exception to stop execution of the commands that follow it in the
script.
openocd_thread special-cases shutdown because it should then terminate
OpenOCD with a success error code, unless shutdown was called with an
optional "error" argument which means terminate with a non-zero exit
code.
Change-Id: I7b6fa8a2e24c947dc45d8def0008b4b007c478b3
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2600
Tested-by: jenkins
Reviewed-by: Juha Niskanen <juha.niskanen@haltian.com>
Reviewed-by: Jens Bauer <jens@gpio.dk>
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
This should allow most of the existing configurations for older
versions to remain compatible without forcing the user to change his
or her config to explicitly select transport.
Also in some circumstances can remove the need to chain a "-c transport
select X" when building custom configs on the command line, which seems
like a common new user pitfall.
Change-Id: Ic87a38c0b9b88e88fb6d106385efce2f39381d3d
Suggested-by: Petteri Aimonen <jpa@git.mail.kapsi.fi>
Signed-off-by: Angus Gratton <gus@projectgus.com>
Reviewed-on: http://openocd.zylin.com/2551
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This provides support for various trace-related subsystems in a
generic and expandable way.
Change-Id: I3a27fa7b8cfb111753088bb8c3d760dd12d1395f
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2538
Tested-by: jenkins
Given that the manual states that these two subcommands are
deprecated and were scheduled to be removed back in 2010,
remove them and the corresponding documentation from the
manual.
Change-Id: Iaac633349d7fcb8b7f964109c7d26dd0cc5fc233
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Reviewed-on: http://openocd.zylin.com/1860
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
