Glasgow Embedded / Glasgow - History

applet.spi.master: optimize to not use IN autoflush.

gateware.fx2: finish manual-flush code paths.

This fixes the manual-flush issue described in aa80b038, and makes
manual-flush actually usable.

applet.spi.flash_25c: add HOLD# pin, always high.

Flashes (usually?) don't have an internal pullup there, so
an explicit pin makes it easier to remember that, and use a straight
8-to-8 socket adapter, if we ever get any.

applet.spi.master: SS should always be driven.

This broke spi.flash-25c applet in mysterious ways.

applet.spi.flash_25c: use proper dummy byte count for RDP.

access.direct.multiplexer: fix FIFO flush write port forwarding.

This caused flush to be never asserted, and stuck FIFOs.

applet.spi.master: fix refactoring issue.

This broke dependent applets like applet.spi.flash_25c.