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quartiq / bscan_spi_bitstreams

FPGA gateware and pre-build bitstreams that expose SPI over JTAG. The protocol is implemented (among others) by openocd.
MIT License
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Regression in Spartan6 bitstreams #2

Closed vzapolskiy closed 7 years ago

vzapolskiy commented 7 years ago

Hi @jordens

I believe there is a regression introduced in your latest update c790432aca5 (I've tested that the state of bitstreams at 5a487dbe768 is fine).

I checked bitstreams bscan_spi_xc6slx45.bit (csg324) and bscan_spi_xc6slx9t.bit (qg144), and now I get the following error with OpenOCD:

> jtagspi_init 0 bscan_spi_bitstreams/bscan_spi_xc6slx45.bit
loaded file bscan_spi_bitstreams/bscan_spi_xc6slx45.bit to pld device 0 in 3s 748575us
JTAG tap: xc6s.tap tap/device found: 0x34008093 (mfg: 0x049 (Xilinx), part: 0x4008, ver: 0x3)
Unknown flash device (ID 0x00ffffff)

If I revert the last commit, then SPI flash is detected and reprogrammed as expected:

> jtagspi_init 0 bscan_spi_bitstreams/bscan_spi_xc6slx45.bit
loaded file bscan_spi_bitstreams/bscan_spi_xc6slx45.bit to pld device 0 in 3s 763310us
JTAG tap: xc6s.tap tap/device found: 0x34008093 (mfg: 0x049 (Xilinx), part: 0x4008, ver: 0x3)
Found flash device 'micron n25q128' (ID 0x0018ba20)
flash 'jtagspi' found at 0x00000000

On my boards there is no other SPI devices on the bus.

Could you please check if you see the same issue?

Thank you!

jordens commented 7 years ago

The bitstreams here in master are synchronized with new openocd changes. The old or release openocd versions need to use the single-tap branch.

vzapolskiy commented 7 years ago

@jordens

The old or release openocd versions need to use the single-tap branch.

Thank you for information.