driver: Add driver for Dediprog SPI-flash emulator #1483
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The EM100-pro is a SPI-flash emulator which supports a variety of chips. It can be used to provide an image to a booting system. Add a driver which allows images to be loaded ready for use. Signed-off-by: Simon Glass <[email protected]>
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This one needs variables, so I've removed the trace function in this version |
obbardc
reviewed
Sep 23, 2024
| overridden with a USB-connected emulator, which is much faster to load than | ||
| reprogramming the DUT's actual SPI flash. | ||
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| So far only the Dediprog EM100-PRO is supported, so there is no 'model' property |
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Perhaps model: Dediprog EM100-PRO could be mandatory & checked in case of different models added in future?
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The EM100-pro is a SPI-flash emulator which supports a variety of chips. It can be used to provide an image to a booting system.
Add a driver which allows images to be loaded ready for use. Provide a trace facility for use when the board does not boot.
This emulator is widely used on x86 machines since they boot using SPI flash. It is prohibitively expensive (in terms of time) to re-flash the SPI chip on test run, whereas the Dediprog emulator updates in about 5 seconds.
This has been tested on several x86 Chromebooks, including coral.