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microwatt/openocd
History
Joel Stanley fcdc01aa05 flash-arty: Re-add support for running from any path 
The changes in d3c274d01e ("flash-arty: Add support for specifying the file type")
added a local jtagspi.cfg, which meant openocd must be run from the root
of the microwatt directory.

This puts the content into the xilinx-xc7.cfg so the script can be used
from any path again.

Signed-off-by: Joel Stanley <joel@jms.id.au>
 		5 years ago
..
LFE5U-25F.cfg Initial support for ghdl synthesis 5 years ago
LFE5U-45F.cfg Initial support for ghdl synthesis 5 years ago
LFE5U-85F.cfg Initial support for ghdl synthesis 5 years ago
LFE5UM-25F.cfg Initial support for ghdl synthesis 5 years ago
LFE5UM-45F.cfg Initial support for ghdl synthesis 5 years ago
LFE5UM-85F.cfg Initial support for ghdl synthesis 5 years ago
LFE5UM5G-25F.cfg Initial support for ghdl synthesis 5 years ago
LFE5UM5G-45F.cfg Initial support for ghdl synthesis 5 years ago
LFE5UM5G-85F.cfg Initial support for ghdl synthesis 5 years ago
README Add openocd SPI flashing proxies for Arty 5 years ago
bscan_spi_xc7a35t.bit Add openocd SPI flashing proxies for Arty 5 years ago
bscan_spi_xc7a100t.bit Add openocd SPI flashing proxies for Arty 5 years ago
bscan_spi_xc7a200t.bit flash-arty: Support Nexys Video's a200 5 years ago
ecp5-evn.cfg Initial support for ghdl synthesis 5 years ago
flash-arty flash-arty: Support Nexys Video's a200 5 years ago
jtagspi.cfg flash-arty: Re-add support for running from any path 5 years ago
olimex-arm-usb-tiny-h.cfg Initial support for ghdl synthesis 5 years ago
xilinx-xc7.cfg flash-arty: Re-add support for running from any path 5 years ago

README 

The Xilinx SPI flashing proxies come from here:

https://github.com/quartiq/bscan_spi_bitstreams/blob/single-tap/bscan_spi_xc7a35t.bit?raw=true
https://github.com/quartiq/bscan_spi_bitstreams/blob/single-tap/bscan_spi_xc7a100t.bit?raw=true

These are the "old" single tap versions that are supported by the openocd
release packaged in distros (0.10). If you use the wrong versions you see this:

$ ./openocd/flash-arty microwatt_0.bit
Open On-Chip Debugger 0.10.0
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
none separate
Info : auto-selecting first available session transport "jtag". To override use 'transport select <transport>'.
adapter speed: 25000 kHz
fpga_program
Info : ftdi: if you experience problems at higher adapter clocks, try the command "ftdi_tdo_sample_edge falling"
Info : clock speed 25000 kHz
Info : JTAG tap: xc7.tap tap/device found: 0x0362d093 (mfg: 0x049 (Xilinx), part: 0x362d, ver: 0x0)
loaded file openocd/bscan_spi_xc7a35t.bit to pld device 0 in 0s 152803us
Info : JTAG tap: xc7.tap tap/device found: 0x0362d093 (mfg: 0x049 (Xilinx), part: 0x362d, ver: 0x0)
Error: Unknown flash device (ID 0x00ffffff)

If you find yourself with a later openocd version that contians 867bdb2e9248
("jtagspi: new protocol that includes transfer length") you should fetch the
bitstream from the master branch:

https://github.com/quartiq/bscan_spi_bitstreams/blob/master/bscan_spi_xc7a35t.bit?raw=true
https://github.com/quartiq/bscan_spi_bitstreams/blob/master/bscan_spi_xc7a100t.bit?raw=true