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Albert Ou eea10f5129 spi: Fix io.port.dq(3) output enable
Issue: The output enable signal for DQ[3] is not driven properly.

Symptoms: Output data from master to slave is not properly transmitted
in quad mode.  Data received from the slave is unaffected.

Workaround: When interfacing with SPI flash devices, do not use the
"Quad Input/Output Fast Read" command (opcode 0xEB) while in the
Extended SPI protocol.  Do not use the Native Quad SPI protocol.
2017-05-02 12:07:37 -07:00
2016-11-29 04:08:44 -08:00
2016-11-30 13:29:54 -08:00
2016-11-29 04:08:44 -08:00
Description
280 KiB
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