Commit Graph

11 Commits (d1e8e62feee3e2d2d01a69f1486e8099e8438b31)

Author SHA1 Message Date
Benjamin Herrenschmidt 814d6914d0 flash-arty: Add cable argument
To select the cable config. Defaults to arty

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2 years ago
Joel Stanley 0d4a0bab6e openocd: Fix verify command for v0.10
v0.11 uses verify_image, which is not supported by v0.11. Use the old
verify_bank for v0.10.

Signed-off-by: Joel Stanley <joel@jms.id.au>
3 years ago
Joel Stanley 24a34899b4 Add files for openocd v0.11
The protocol used by the spi bridge firmware changed as of openocd
v0.11. As this is the version packaged by Debian Bullseye, add the
firmware for convince.

Signed-off-by: Joel Stanley <joel@jms.id.au>
3 years ago
Dan Horák 801bd3b8ee
flash-arty: update error message (#203)
Signed-off-by: Dan Horák <dan@danny.cz>
4 years ago
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>
4 years ago
Joel Stanley 002858ddde flash-arty: Support Nexys Video's a200
Not an Arty but Anton tests on this board.

Signed-off-by: Joel Stanley <joel@jms.id.au>
4 years ago
Benjamin Herrenschmidt d3c274d01e flash-arty: Add support for specifying the file type
By default openocd tries to "guess" the file type and interpret
it accordingly. For example it will detect an ELF file based on
the presence of an ELF header and will try to load the relevant
segments into the flash.

This may not be what we want. For example, I want to load the raw
ELF file into the flash.

Additionally the ELF parser in most distro's OpenOCD version
only supports ELF32 and will error out.

This adds a "-t" argument to flash-arty to allow us to specify the
file format. For example "-t bin" will treat the file as raw binary.

Unfortunately I had to copy and modify jtagspi.cfg from OpenOCD
to achieve this.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years ago
Benjamin Herrenschmidt 3592be733e flash-arty: Support hex values for address
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years ago
Joel Stanley 60d2b8ac1e Add script for writing to flash on arty
You must have openocd 0.10.0 installed.

$ ./openocd/flash-arty ~/microwatt-fusesoc/build/microwatt_0/arty_a7-35-vivado/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 microwatt/openocd/bscan_spi_xc7a35t.bit to pld device 0 in 0s 136459us
Info : JTAG tap: xc7.tap tap/device found: 0x0362d093 (mfg: 0x049 (Xilinx), part: 0x362d, ver: 0x0)
Info : Found flash device 'micron n25q128' (ID 0x0018ba20)
flash 'jtagspi' found at 0x00000000
auto erase enabled
Info : Found flash device 'micron n25q128' (ID 0x0018ba20)
Info : Found flash device 'micron n25q128' (ID 0x0018ba20)
Info : Found flash device 'micron n25q128' (ID 0x0018ba20)
Info : sector 0 took 241 ms
Info : sector 1 took 242 ms
Info : sector 2 took 241 ms
Info : sector 3 took 247 ms
Info : sector 4 took 253 ms
Info : sector 5 took 244 ms
Info : sector 6 took 246 ms
Info : sector 7 took 237 ms
Info : sector 8 took 258 ms
Info : sector 9 took 260 ms
Info : sector 10 took 262 ms
Info : sector 11 took 253 ms
Info : sector 12 took 256 ms
Info : sector 13 took 255 ms
wrote 917504 bytes from file microwatt-fusesoc/build/microwatt_0/arty_a7-35-vivado/microwatt_0.bit in 9.642746s (92.920 KiB/s)
Info : Found flash device 'micron n25q128' (ID 0x0018ba20)
read 907483 bytes from file microwatt-fusesoc/build/microwatt_0/arty_a7-35-vivado/microwatt_0.bit and flash bank 0 at offset 0x00000000 in 0.557387s (1589.944 KiB/s)
contents match

Signed-off-by: Joel Stanley <joel@jms.id.au>
4 years ago
Joel Stanley 8857bd1f58 Add openocd SPI flashing proxies for Arty
These are downloaded from https://github.com/quartiq/bscan_spi_bitstreams/

Signed-off-by: Joel Stanley <joel@jms.id.au>
4 years ago
Anton Blanchard db937403ec Initial support for ghdl synthesis
A first pass at ghdl synthesis using yosys and nextpnr. It runs hello world
or micropython if the FPGA has enough block RAM (eg ECP5 85F). The hello
world testcase also loops UART rx to tx in software (ie not a hardware
loopback).

It uses Docker images, so no software needs to be installed. If you prefer
podman you can use that too. Edit Makefile.synth to configure your FPGA,
JTAG device etc.

To build:

make -f Makefile.synth

and to program:

make -f Makefile.synth prog

A few issues:

We need to add PLL support. Right now Microwatt runs at whatever the
external clock frequency is and the baud rate gets scaled by how far off
50MHz it is. This means on the ecp5-evn with a 12 MHz clock rate the baud
rate is a quite strange 27650 (115200 * 50 / 12). On my OrangeCrab with a
50MHz clock the UART is 115200.

It uses a large amount of resources, way more than it should. There are
still some ghdl/yosys issues to be sorted out.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
4 years ago